CN104520525B - Latch body components having multiple functions, and drilling head assembly incorporating same - Google Patents
Latch body components having multiple functions, and drilling head assembly incorporating same Download PDFInfo
- Publication number
- CN104520525B CN104520525B CN201280074418.6A CN201280074418A CN104520525B CN 104520525 B CN104520525 B CN 104520525B CN 201280074418 A CN201280074418 A CN 201280074418A CN 104520525 B CN104520525 B CN 104520525B
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- Prior art keywords
- breech lock
- lock body
- chamber
- fluid
- longitudinal axis
- Prior art date
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- 238000005553 drilling Methods 0.000 title abstract description 34
- 230000006870 function Effects 0.000 title description 3
- 239000012530 fluid Substances 0.000 claims abstract description 136
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 21
- 230000013011 mating Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims 14
- 238000000429 assembly Methods 0.000 claims 14
- 238000010009 beating Methods 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 28
- 230000008859 change Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 230000036961 partial effect Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
- E21B47/095—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting an acoustic anomalies, e.g. using mud-pressure pulses
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Check Valves (AREA)
- Drilling Tools (AREA)
Abstract
A latch body for use in a drilling head assembly including a fluid control subassembly, a check valve element, and/or a hollow spindle. A distal end portion of the latch body includes a port section that defines a chamber for receiving the check valve element and promoting movement of the check valve element between a blocking position and an open position. The hollow spindle of the fluid control subassembly is operatively coupled to the chamber of the port section and supports the check valve element in the blocking position. A proximal end portion of the latch body supports the fluid control subassembly of the drilling head assembly in an operative position. The latch body includes male protrusions extending inwardly toward and spaced from a longitudinal axis of the latch body. A plurality of channels extend radially outwardly from the longitudinal axis of the latch body, spanning between adjacent male protrusions.
Description
Invention field
Present application relates generally to drilling equipment and method, and it is more particularly to for controlling the stream flowing through core barrel head assembly
The equipment of body and method.
Background of invention
Need a kind of core barrel head assembly of the rate of release that improvement is provided during dropping to drill string.Accordingly, it would be desirable to bag
Include the core barrel head assembly of the mechanism for carrying out following purpose: (a) allows stationary fluid to pass through inner tube, with by tube head assembly
Reduce resistance, (b) prevents drilling well supply liquor stream from entering inner tube and damaging drill core sample simultaneously during being discharged in well.
Also need to the core barrel head assembly providing the fluid of improvement to control during all drilling conditions.Accordingly, it would be desirable to bag
Include the core barrel head assembly of the mechanism for carrying out following purpose: reliably create the pressure change that can be detected by drilling operator
Signal；And the fluid communication guaranteeing between rig and drill bit, especially during " leakage " condition, now it is critical to avoid fluid
The pressure loss.
Conventional core barrel head assembly is not equipped with, in single component configuration, the mechanism meeting all these needs, and can not
Meet all these needs.On the contrary, multiple configurations are needed, thus increased the cost of manufacture, stock's technology and training operator
And complexity.Therefore, need rate of release and the improvement being configured to provide improvement under all drilling conditions in association area
The single core barrel head assembly configuration that controls of fluid.
Brief summary of the invention
Be described herein a kind of for the breech lock body in drill bit assembly.Drill bit assembly may include fluid and controls sub-component, non-return
Valve components, and/or hollow spindle.Breech lock body can have the longitudinal axis, longitudinal length, close end, and distal portion.During breech lock body can limit
Heart hole, described centre bore extends through close end and the distal portion of breech lock body along the longitudinal length of breech lock body.
The distal portion of breech lock body may include port part, the chamber that described port part restriction is connected with bore fluid.Port
Portion also can limit at least one port with chamber in fluid communication.The chamber of port part can be configured to receive stopping of drill bit assembly
Return at least a portion of valve components.The chamber of port part can have inner surface, and described inner surface is configured to promote check-valves unit
Cross at least one of blocking position of chamber of port part and wherein allow fluid flow through chamber wherein by block fluid flow for part
Open position between move.Fluid controls the hollow spindle of sub-component may be operably coupled to the chamber of port part, and
It is set to the chamber in fluid communication with port part.Hollow spindle can be configured to for check valve element to be supported on blocking position.Door bolt
Lock body may also include the spring in the chamber being at least partially recessed into port part, and described spring is configured to check valve element
It is biased in blocking position.
The close end of breech lock body can be configured to control sub-component to be supported on operating position the fluid of drill bit assembly.Fluid
Control sub-component can have the longitudinal axis common with breech lock body.Fluid control sub-component may include and is configured to carry out with respect to common
The valve member of the movement of the longitudinal axis.Fluid controls sub-component to may also include spring, and described spring is arranged to adjacent valve member and door bolt
The close end of lock body is so that spring biases against valve member.
Breech lock body may include multiple male protrusions, described male protrusions inwardly breech lock body the longitudinal axis extend and with
The longitudinal axis of breech lock body is spaced apart.Each outthrust in multiple male protrusions can have separate with the longitudinal axis of breech lock body select away from
From front end.Breech lock body may also comprise the multiple passages extending radially outwardly from the longitudinal axis of breech lock body.Each in multiple passages
Passage may span across the front end of adjacent male protrusions.
Also disclose that the method using described breech lock body and drill bit assembly.
Brief description
These and other feature of the preferred embodiments of the invention will become in the specific embodiment of refer to the attached drawing
Become apparent from, in the accompanying drawings:
Fig. 1-Fig. 3 is the partial section of exemplary drill bit assembly as described herein.Exemplary drill bit assembly is shown
The cross section of some elements, illustrates the partial cut-away perspective view of the far-end 16 of the breech lock body 10 of exemplary drill bit assembly simultaneously.Figure
The orientation of the various parts in order to display example drill bit assembly for the hacures shown in 1- Fig. 3 and morphology.
Fig. 1 shows there is the exemplary drill bit group that spring biasing fluid controls sub-component and spring biased check valve element
Part.
Fig. 2 shows there is the exemplary drill bit group that spring biasing fluid controls sub-component and gravity biased check valve element
Part.
Fig. 3 shows there is the exemplary drill bit group that fluid resistance biases fluid control elements and gravity biased check valve element
Part.
Fig. 4 is the exemplary breech lock body as described herein with multiple male protrusions, multiple passage and port part
Partial section.This partial section intercepts along the line 4-4 of Fig. 6 and Fig. 7 b.
Fig. 5 is the another exemplary breech lock as described herein with multiple male protrusions, multiple passage and port part
The partial section of body.This partial section intercepts along the line 5-5 of Fig. 7 a.
Fig. 6 is the partially transparent perspective view of the breech lock body of Fig. 4.
Fig. 7 a is top (near-end) perspective view of the breech lock body of Fig. 5.
Fig. 7 b is top (near-end) perspective view of the breech lock body of Fig. 4.
Specific embodiment
Can by reference to detailed description below, example, drawings and claims, and its before and following retouching
State the present invention is more easily understood.However, open and before describing this equipment, system and/or method it should be appreciated that this
Bright be not limited to disclosed specific equipment, system and/or method, unless otherwise prescribed, and therefore, the present invention certainly may be used
Change.It will also be appreciated that term used herein is merely to describe the purpose of particular aspects, and it is not intended to be limiting.
The following description of the present invention is provided as allowing the invention to the optimal embodiment being currently known at it
The teaching of middle enforcement.For this reason, various equivalent modifications will recognize and appreciate that, can be to the various aspects of invention described herein
Carry out many changes, and still obtain the beneficial outcomes of the present invention.Also it will be evident that, the present invention some expectation benefits can lead to
Cross some features selecting the present invention and do not obtained using further feature.Therefore, this area staff will be recognized that, this
Bright many modifications and adjustment are possible, and are possibly even preferable and being the present invention one in some cases
Point.Therefore, below description is provided to the principle of the present invention is described, rather than is limited.For example, although following describe
Concentrate on the well system in order to drill core tube assembly to be discharged turnover drill string, but the part of described system can be suitable with any
On down-hole or well, instrument uses, for example drill core sample orientation measuring apparatus, well direction measuring device, borehole throw equipment, or appoints
What object on its suitable down-hole or well.
As used in the whole text herein, singulative " (a/an) " and " being somebody's turn to do " include plural reference, bright unless the context otherwise
Really explanation.Thus, for example, referring to that " inner tube " may include two or more such inner tubes, unless context is otherwise indicated.
Scope is represented by from " about " particular value and/or to " about " another particular value herein.When expression so
Scope when, on the other hand include from a particular value and/or to another particular value.Similarly, when numerical value is by using elder generation
Row word " about " is being expressed as during approximation it will be appreciated that on the other hand described particular value is formed.It will be further understood that each model
Two end points enclosing are all important with respect to another end points, and independent of described another end points.
As used herein, term " optional " or " optionally " refer to the event subsequently describing or situation it may happen that or can
Can not occur, and this description includes wherein occurring and the situation of described event or situation does not occur.
Word "or" represents any one composition in particular list as used herein, and also includes the one-tenth of this list
The combination in any divided.
As used herein, term " release (trip/tripping) " refers to the time period during following drillng operation:
A () empty interior tube assembly (not containing sample) is advanced to boring, until interior tube assembly reaches bottom and/or the end of well；Or
B () full interior tube assembly (containing sample) is fetched from the bottom of well and/or end.For example, release can refer to sky interior tube assembly fall
Enter and/or fall into into the well of downward angle, until interior tube assembly reaches drilling well position；Empty interior tube assembly is pumped into inclination
Well, until interior tube assembly reaches drilling well position；And wirerope fetches full interior tube assembly from drilling well position, until interior tube assembly is moved back
Go out well.In exemplary application, interior tube assembly may include tube head assembly, inner tube, drill core extractor and housing.
Describe for the breech lock body 10 in drill bit assembly 100 herein by reference to Fig. 1-Fig. 7 b.In illustrative aspects, drill bit group
Part 100 can have fluid and control sub-component 60, check valve element 40, and/or hollow spindle 50.Although drill bit assembly 100 can wrap
Include any suitable part, but in exemplary configuration, drill bit assembly may include drill string, include in drill core pipe interior drill core pipe group
Part, include the outer drill core tube assembly of outer drill core pipe, and be connected to cable fetch instrument.As described herein, breech lock body 10 can
Including in drill core tube assembly and outer drill core tube assembly.
Drill string may include one or more parts of the tube drilling rod being joined together to form long tubular strings.Drill string
Can have any suitable characteristic known in the art.For example, drilling rod can be applied according to different probing and have any suitable
Length.Segment of drillpipe also can have any suitable cross section wall thickness.Can expect, in drill string, at least one portion of drilling rod can
There is the cross section wall thickness of change.
Drill string may be oriented at any angle, including the angle with the scope of 30 degree to about 90 degree of horizontal surface Cheng Congyue,
Either for drilling technology on well still for downhole drill technique.In fact, when drill bit assembly 100 is in downhole drill technique
In when being used in conjunction with drilling fluid it is contemplated that, downward angle can help retain some drilling fluids in the bottom of boring.In addition, can be pre-
Phase, downward angle can allow using instrument of fetching and cable come drill core pipe in drill string release.
Interior drill core pipe can have permission, and down-hole object (for example, sample cell) is connected so that down-hole object by it with the instrument of fetching
Any characteristic or the part of turnover drill string can be released.For example, interior drill core pipe may include and fetches a little.Interior fetching of drill core pipe a little may be used
It is optionally attached to any instrument of fetching and (such as but not limited to, is salvaged cartridge module and/or wirerope lifting to have permission
Machine) any characteristic.For example, fetch a little can shape as lance point to contribute to a little being correctly aligned and coupling instrument of fetching with fetching
Connect.In another example, when will boring outside manipulate fetch instrument and interior drill core pipe when it is contemplated that, fetch a little pivotly
It is attached to interior drill core pipe, to pivot in a plane with multiple stop positions.
In illustrative aspects, breech lock body 10 can be for being configured to the operable upper latch body being couple to drill bit assembly 100
Lower latch body.In these areas, upper latch body may include fluid control sub-component 60.Can expect, upper latch body is also
May include bolt lock mechanism, when filling drill core sample cell, drill core sample cell can be protected by described bolt lock mechanism with respect to outer drill core pipe
Hold in desired locations.In order in without prejudice to drill core pipe move in drill string it is contemplated that, bolt lock mechanism may be configured such that breech lock simultaneously
The inner surface being not against drill string pulls.Correspondingly, this non-dragging bolt lock mechanism can be for allowing it to execute this in deenergized period
Function is kept to be not against any bolt lock mechanism that the inner surface of drill string pulls.For example, bolt lock mechanism may include fluid drives door bolt
Latch mechanism, gravity actuated latch mechanism, pressure activation bolt lock mechanism, contact activated mechanism, magnetic actuation bolt lock mechanism etc..Therefore,
In some respects, bolt lock mechanism can be driven by electronics or magnetic sub-systems, by the hydraulic pressure difference of bolt lock mechanism above and or below
Valve member, or activated by another suitable actuating mechanism.
Bolt lock mechanism may also comprise permission, and it executes any part of its expected purpose or feature.For example, bolt lock mechanism can
Including any number of latch arms, breech lock roller, breech lock ball, multi-part connecting rod, or it is configured to be positioned in when interior drill core pipe
During operating position, bolt lock mechanism is moved into any mechanism of the position of engagement.Can expect, bolt lock mechanism may include and helps gunlock
Structure is maintained at the stop mechanism of engagement or retracted position.It is further contemplated that described stop mechanism can assist in keeping bolt lock mechanism existing
The inner surface of drill string is contacted during drilling well.Stop mechanism also assists in bolt lock mechanism and keeps retracting, so that in any release movement
Period does not contact inner surface and the inner surface dragging against drill string of drill string.
In various aspects it is contemplated that, breech lock body 10 may include any part being suitable to be used in conjunction with interior drill core pipe or characteristic.?
On one side, and reference picture 1- Fig. 5, breech lock body 10 can have longitudinal axis l, longitudinal length 12, close end 14, and distal portion 16.?
This aspect it is contemplated that, the close end 14 of breech lock body 10 can limit the near-end 15 of breech lock body.It is further contemplated that breech lock body 10
Distal portion 16 can limit the far-end 17 of breech lock body.Illustrate as Fig. 6-Fig. 7 b it is contemplated that, longitudinal axis l can be by the longitudinal direction along breech lock body
Length 12 is centrally located in breech lock body 10.On the other hand, breech lock body 10 can limit centre bore 18, and centre bore 18 is along breech lock body
Longitudinal length 12 extend through close end 14 and distal portion 16.For example it is contemplated that, the centre bore 18 of breech lock body 10 can be along breech lock
The whole longitudinal length 12 of body extends (between the near-end 15 and the far-end 17 of breech lock body of breech lock body).It is further contemplated that when door bolt
When lock body 10 corresponds to lower latch body, the centre bore 18 of breech lock body 10 can be with the complimentary aperture of upper latch body and/or passage stream
Body connects.In use it is contemplated that, the centre bore 18 of breech lock body can improve life by allowing fluid directly flow through breech lock body 10
Yield.
In yet another aspect, and reference picture 1- Fig. 5, the distal portion 16 of breech lock body 10 may include port part 30.In this side
Face, port part 30 can limit the chamber 32 with centre bore 18 fluid communication of breech lock body.Port part 30 also can limit and chamber 32
At least one port 34 being in fluid communication.In illustrative aspects it is contemplated that, the port 34 at least one port can be configured to
Increase passing through of heavier drilling fluid, this is favourable under constant not good formation condition.It is further contemplated that at least one port
In port 34 can be configured to increase provide drilling fluid to drive the speed of cutting.Still it is further contemplated that breech lock body 10
Port part 30 may include and is configured to tolerate high static and cyclic loading (such as but not limited to, the shaking of experience during drillng operation
Dynamic and shock loading) one or more material.
In illustrative aspects it is contemplated that, the chamber 32 of port part 30 can be configured to receive the check-valves of drill bit assembly 100
At least a portion of element 40.Therefore, in these areas, check valve element 40 is arranged in breech lock body 10, thus no longer needing
Want single " check valve body " typically seen in prior art.In illustrative aspects, check valve element 40 can be ball valve.
However, it is contemplated that, check valve element 40 can be for providing any conventional check valve element of fluid handling properties described herein.
In one aspect, the port 34 at least one port of valve body 10 can be shaped, to prevent check valve element 40
Exit from port.For example, at this aspect it is contemplated that, the port 34 at least one port can have less than check valve element
The diameter of 40 external diameter (or other external dimensions).
Alternatively, in various aspects, the chamber 32 of port part 30 can have inner surface, and described inner surface is configured to promote
Cross at least one of blocking position of chamber and wherein allow fluid flow through chamber wherein by block fluid flow for check valve element 40
Move between the open position of room.In illustrative aspects it is contemplated that, the distal portions of the inner surface of chamber 32 can have substantially
Frustoconical profile, wherein inner surface slope inwardly with respect to the longitudinal axis l of breech lock body 10, thus moving on to from the near-end 15 of breech lock body
The far-end 17 of breech lock body.Alternatively, at this aspect, the distal portions of the inner surface of chamber 32 can be vertical with respect to breech lock body 10
Axle l is sloped inwardly with the angle being less than about 40 degree.At this aspect, it is further contemplated that the distal portions of the inner surface of chamber 32
Can be configured to, when gravity, check valve element minimizes when open position moves blocking position to check valve element 40 movement
Resistance.In blocking position it is contemplated that, check valve element 40 can form fluid-tight, described far-end with the distal openings of chamber 32
Opening is connected with the centre bore 18 of breech lock body 10.Can expect, the open position of check valve element 40 may correspond in deenergized period
Stationary fluid is allowed to flow through breech lock body 10 to reduce the position of the check valve element of resistance.It is further contemplated that in any open position
Put, the resistance that fluid passes through around check valve element can be substantially the same.Still it is further contemplated that the resistance of check valve element 40
Gear is put and be may correspond to prevent drilling well supply liquor stream from entering drill core sample cell thus keep drill core sample in drill core sample cell stops
Go back to the position of valve components.
In illustrative aspects, check valve element 40 can allow fluid to flow to centre bore 18 from drill core sample cell, prevent simultaneously
Fluid flows to drill core sample cell from centre bore.Correspondingly, check valve element 40 can be configured to be discharged into brill when interior drill core pipe
During post and allow fluid to flow into centre bore 18 when drill core sample cell is empty and then pass through interior drill core pipe.So it is contemplated that, stream
Body resistance can be reduced, thus drill core pipe faster and is more easily discharged into drill string in allowing.On the other hand, when interior drill core pipe
Be released during drill string it is contemplated that, check valve element 40 can prevent from fluid from pressing down on or damage containing in drill core sample cell
Drill core sample.Therefore, check valve element 40 can prevent sample from coming off or losing.It is further contemplated that when check valve element 40 prevents
When fluid flows through breech lock body 10 and enters drill core sample cell (in blocking position), fluid can be forced in drill core sample cell and breech lock body
10 exterior circumferential flowing.Still it is further contemplated that when check valve element 40 is in blocking position, it can be configured to prevent
And/or minimize the washing to drill core sample or erosion damage.
Alternatively, in a further aspect, and as Fig. 1 illustrates, breech lock body 10 may also include and is at least partially recessed into port
Spring 36 in the chamber 32 in portion 30.In these areas, spring 36 can be configured to for check valve element 40 to be biased in stop position
Put.Can expect, during downhole drill, gravity can ensure that the suitable biasing of check valve element 40；On the contrary, the drilling well phase on well
Between, when applying gravity in opposite direction, spring 36 may be used to suitable bias check valve element.In illustrative aspects, bullet
The Part I of spring 36 can be received in chamber 32, and the Part II of spring can be received in the centre bore 18 of breech lock body 10
In (between the close end 14 of port part 30 and breech lock body).It yet still another aspect, spring 36 can be configured to lift check-valves unit
The weight of part 40.At this aspect it is contemplated that, spring 36 may include the wide line in light interval, thus limiting fluid flow
Resistance.
In terms of another exemplary, and reference picture 1- Fig. 3, fluid controls sub-component 60 to may include valve chamber 62 and valve member
64.At this aspect, valve chamber 62 can be arranged to be in fluid communication with the centre bore 18 of breech lock body 10.Can expect, valve chamber 62 can be with
Breech lock body 10 shares common longitudinal axis l.It is further contemplated that the close end 14 of breech lock body 10 can be configured to for fluid to control subgroup
Part 60 is supported on operating position.For example it is contemplated that, valve chamber 62 can be arranged to the near-end 15 of adjacent breech lock body 10.One still can be entered
Step expection, at least a portion of valve member 64 may be placed in valve chamber 62, and is configured to carry out with respect to common longitudinal l's
Mobile.In illustrative aspects, valve member 64 can be elongated piston (as Fig. 1-Fig. 3 illustrates).However, it is contemplated that, valve member 64 can
Control valve components for any known fluid, include, for example, but not limited to, ball valve.
Alternatively, in a further aspect, fluid controls sub-component 60 to may include spring 66, and spring 66 is arranged at valve chamber 62
In so that spring adjoins the part for close end 14 of breech lock body 10 and biases against valve member 64.In still another optional aspect, flow
Body controls sub-component 60 to may include at least one of bushing 68 being arranged in valve chamber 62 and axially surrounding spring 66.At this
Aspect it is contemplated that, bushing 68 can be configured to limit flow of fluid and produce pressure change signal (for example, higher pressure letter
Number), when valve member 64 is mobile with respect to longitudinal axis l, described pressure change signal is passed to drilling operator.Pre- further
Phase, valve member 64 may be optionally configured to be arranged in the way of interference engagement in bushing 68, thus allowing bushing 68 to make
For pressure indicator work.Can expect, when valve member 64 is configured in the way of interference engagement be arranged in bushing 68, lining
Set may include nylon or other similar material.However, it is further contemplated that being not adapted to the side with interference engagement when valve member 64
When formula is arranged in bushing 68 (that is, when there being a certain amount of gap), bushing may include steel or other similar material.
In illustrative aspects it is contemplated that, spring 66 can provide enough resistances to valve member 64, to guarantee at least some fluid
It is transported to the drill bit of drill bit assembly 100.For example, spring 66 can produce, by valve member 64 suppression, the Fluid pressure raising, from
And guarantee the fluid communication between rig and drill bit.In illustrative aspects, spring 66 can have enough rigidity, to produce applying
Notable fluid flow pressure (scope from about 500 to about 1,500psi) the big drag loads of oscillation suppression, thus provide flat
Sliding response and reliable fluid control.In these areas, spring 66 may include die springs or as routine has been in prior art
The other springs with heavy rectangular cross section wire known.Can expect, do not have spring 66 to resist valve member 64 in the case of, some
Fluid can be lost to ground.In illustrative aspects, bushing 68 can be arranged to the near-end 15 of adjacent breech lock body 10.In these sides
Face it is contemplated that, the seat that the near-end 15 of breech lock body 10 may act as bushing 68 puts shoulder.Thus, it is contemplated that, breech lock body 10 can provide
(1) fluid controls the spring 66 of sub-component 60 and/or the base of bushing 68；(2) shell of check valve element 40.
In various illustrative aspects it is contemplated that, fluid control sub-component 60 can be arranged to control release and/or drilling well
The amount of the drilling fluid by interior drill core pipe for the period.In these areas it is contemplated that, fluid control sub-component 60 can have and these work(
Any characteristic that can be consistent or part.On the other hand it is contemplated that, valve member 64 can by any of adapter (for example
Pin) it is coupled to outer drill core pipe.At this aspect, it is further contemplated that pin can be advanced so that valve member 64 can phase in axial groove
For interior drill core pipe and the axial movement of outer drill core pipe.In illustrative aspects, when fluid controls sub-component to include bushing 68,
Valve member 64 axially can be moved between the open and the closed positions by the interaction with bushing 68.Alternatively, flow
Body controls sub-component 60 can be configured to engage with liquid feed pump, and wherein liquid feed pump is configured to transmit fluid and pressure
Power, thus produce fluid resistance so that valve member engages bushing 68 and/or is moved through bushing 68 across valve member 64.
In illustrative aspects, interior drill core pipe may include the one or more fluid ends connecting with the external fluid of interior drill core pipe
Mouthful.In use, when valve member 62 is in open position it is contemplated that, fluid can flow through fluid control from (bottom) breech lock body 10
Sub-component 60 (and passing through and/or around valve member), and flow through the fluid port of interior drill core pipe.In an open position in valve member
In the case of, bolt lock mechanism may be disposed at retracted position and is configured to insert in drill string.Alternatively, in this open position
Put it is contemplated that, fluid can flow to upper latch body from (bottom) breech lock body 10, but Fluid pressure can force valve member 62 direction
Bushing 68, so that valve member is pressed against bushing and prevents flow of fluid.
In a further aspect, and reference picture 4- Fig. 7 b, breech lock body 10 may include multiple male protrusions 20, male protrusions
20 inwardly breech lock body longitudinal axis l extend and be spaced apart with the longitudinal axis l of breech lock body.In this aspect, multiple male protrusions
In each outthrust can have the front end 22 separating selected distance d with the longitudinal axis l of breech lock body 10.Alternatively, on the other hand,
In multiple male protrusions, the front end 22 of each outthrust 20 may include edge surface 23.Alternatively, as Fig. 7 b illustrates, edge table
Face 23 can substantially flat.However, it is contemplated that, the edge surface 23 of each front end 22 can have reservation outthrust as described herein
Functional any shape.For example, illustrate as Fig. 7 a it is contemplated that, the edge surface 23 of front end 22 can be the arc with curvature
Shape surface so that along edge surface 23 move radially when, selected distance d between front end and longitudinal axis l keeps substantially consistent.
It is further contemplated that in multiple male protrusions the front end 22 of at least one outthrust 20 may alternatively have with multiple convexs dash forward
Go out the different geometry in front end and/or the corner contours of another outthrust in thing.
In still another optional aspect, and reference picture 1- Fig. 2 and Fig. 4-Fig. 7 b, every in multiple male protrusions of breech lock body 10
Individual outthrust 20 can limit near-end mating surface 25, and near-end mating surface 25 is oriented and is substantially perpendicular to breech lock body and fluid
Control the common longitudinal l of the valve member 62 of sub-component 60.Each male protrusions 20 in this aspect, multiple male protrusions
Near-end mating surface 25 can be configured to the spring 66 that adjacent fluid controls sub-component 60.Thus, it is contemplated that, each outthrust
Selected distance d between 20 and longitudinal axis l can select according to the external diameter of spring 66 and/or valve member 62.It is further contemplated that selecting
Can optionally selectively change to bear drilling well load and vibration apart from d, thus avoiding wear-out failure and other syndrome.
Limited thereto, it is also contemplated that, maximize selected distance d and transfer the fluid that maximizing flows through breech lock body 10.
As Fig. 4-Fig. 5 illustrates, alternatively expect, the near-end engagement table of each male protrusions 20 in multiple male protrusions
Face 25 can separate selected distance 26 along the longitudinal length 12 of breech lock body and the near-end 15 of breech lock body 10.Can expect, selected distance
26 can select according to the longitudinal length of spring 66, and wherein spring is chosen so as to provide enough resistances to valve member 64.One
Individual illustrative aspects, selected distance 26 is smaller than the longitudinal length (when spring is in stress free position) of spring 66, thus working as
It is allowed to compression prestrain bullet when spring is arranged to near-end mating surface 25 with male protrusions 20 and valve member 64 engages
Spring.Alternatively, at this aspect, reloading spring can be configured to provide high initial resistance to valve member 64 after contact.
Or, on the other hand, breech lock body 10 can be configured to receive spring 66 at least a portion so that spring at the beginning with valve
Do not apply resistance during component 64 contact, and bushing 68 and valve member can be configured to and spring cooperation, thus providing desired
Fluid pressure response profile and/or signal.In illustrative aspects, bushing 68 can be configured to the near-end 15 near breech lock body 10；
Thus, it is contemplated that, selected distance 26 can correspond essentially to the longitudinal direction between the bushing 68 of breech lock body and near-end mating surface 25
Interval.
Alternatively, in illustrative aspects, the outer surface of the close end 14 of breech lock body 10 can have threaded portion.In this side
Face, the threaded portion of the outer surface of breech lock body 10 can prolong from the near-end 15 of breech lock body along the part of the longitudinal length 12 of breech lock body
Stretch.Alternatively, illustrate as Fig. 4-Fig. 5 it is contemplated that, the threaded portion of the outer surface of breech lock body 10 is along the longitudinal length 12 of breech lock body
The distance extending can correspond essentially to selected distance 26.
In exemplary optional aspect, multiple male protrusions, each male protrusions 20 can have base portion 21a and extension
Part 21b.In these areas, illustrate as Fig. 6-Fig. 7 b it is contemplated that, the extension 21b of each male protrusions 20 can be relatively
In base portion 21a, inwardly longitudinal axis l extends.It is further contemplated that the near-end mating surface 25 of each male protrusions 20 can be by prolonging
Extending portion divides 21b to limit.In a further aspect, as Fig. 4-Fig. 5 illustrates, the base portion 21a of each male protrusions may include close end
Divide 29, proximal part 29 is arranged between extension 21b and the near-end 15 of breech lock body 10 with respect to the longitudinal axis l of breech lock body.
In still another optional aspect, and reference picture 1- Fig. 5, each outthrust 20 of multiple male protrusions of breech lock body 10 can
Limit (or with inner surface cooperation of port part 30 to limit) far-end mating surface 27.In illustrative aspects, far-end engages
The common longitudinal l being configured to controlling sub-component 60 with respect to breech lock body and fluid is mobile towards the close end 14 of breech lock body
Check valve element 40 is adjoined during check valve element.At this aspect, such as Fig. 4 illustrate it is contemplated that, far-end mating surface 27 can direction
The longitudinal axis l of breech lock body 10 slopes inwardly, thus the longitudinal length 12 along breech lock body moves to breech lock from the far-end 17 of breech lock body
The near-end 15 of body.Thus, it is contemplated that, breech lock body 10 can limit check valve element 40 and fluid controls sub-component 60 (to include valve structure
Part 64) both bases.
In terms of another exemplary, such as Fig. 5 illustrates, far-end mating surface 27 is oriented with being substantially perpendicular to breech lock body
Longitudinal axis l.In this aspect, multiple male protrusions, the far-end mating surface 27 of each male protrusions 20 can be configured to
The spring 36 of adjacent breech lock body 10.
It yet still another aspect, breech lock body 10 may include the multiple passages 28 extending radially outwardly from the longitudinal axis l of breech lock body.At this
Individual aspect it is contemplated that, each passage 28 in multiple passages may span across the front end 22 of adjacent male protrusions 20.Pre- further
Phase, multiple passages 28 of breech lock body 10 can be configured to allow fluid and control sub-component 60 with respect to common longitudinal l around fluid
Valve member 64 and check valve element 40 flow.Each passage 28 in illustrative aspects, multiple passages may optional ground
It is u shape on this.However, it is contemplated that, each passage 28 in multiple passages can have the work(retaining passage 28 as described herein
Any shape of energy property.It is further contemplated that at least one of multiple passages passage 28 may alternatively have and multiple passages
In the different geometry of another passage and/or corner contours.In illustrative aspects, multiple passages can be formed by boring pattern.At it
Its illustrative aspects it is contemplated that, multiple passages can be formed by two vertical milling paths, for example can be using conventional circle
Milling bit is forming.
In illustrative aspects, multiple passages 28 may include 4 passages.However, it is contemplated that, multiple passages 28 may include
Retain any number of passage of the fluid flow characteristics of breech lock body 10 as described herein.Thus, for example but be not limited to, can be pre-
Phase, multiple passages 28 may include 3,5,6,7,8,9,10,11 or 12 passages.
In use it is contemplated that, passage 28 is bigger, provide drilling fluid flowing resistance will be less.However, it is also contemplated that,
Breech lock body 10 may include enough materials, to keep drilling well load and support spring load.Alternatively it is contemplated that, when from along
When the longitudinal axis l of breech lock body divides the plane survey of breech lock body 10 equally, passage 28 can have the profile of almost symmetry.However, in other
Aspect it is contemplated that, passage 28 can have asymmetric profile.
In illustrative aspects, the hollow spindle 50 of drill bit assembly 100 may be operably coupled to the port of breech lock body 10
The chamber 32 in portion 30.In these areas it is contemplated that, hollow spindle 50 can be arranged to the chamber with the port part 30 of breech lock body 10
32 fluid communication.In one aspect, hollow spindle 50 can be configured to for check valve element 40 to be supported on blocking position.At this
Aspect it is contemplated that, when check valve element is in open position, this set of check valve element 40 (is supported on hollow spindle
Between 50 and the chamber 32 of port part 30 of breech lock body 10 and be accommodated in breech lock body 10 the chamber 32 of port part 30 in) can permit
Permitted fluid and flowed completely through main shaft.It is further contemplated that when breech lock body includes spring 36, spring can be against hollow spindle 50 by non-return
Valve components 40 are biased in blocking position.
Alternatively, on the other hand, the distal portion 16 of breech lock body 10 may also include mate 38, and mate 38 is set
It is set to and be in fluid communication with chamber 32 and be configured to engage with hollow spindle 50.At this aspect, mate 38 can be with respect to
Longitudinal axis l is arranged between the port part 30 of breech lock body 10 and far-end 17 (making mate limit the part of centre bore 18).
Can expect, mate 38 can have the thread inner surface being configured to engage with the thread outer surface complementation of hollow spindle 50.
However, it should be understood that mate 38 may include for carrying out machinery, axially aligning any known members of engagement.
In illustrative aspects it is contemplated that, described drill bit assembly 100 and/or breech lock body 10 can provide for confirming breech lock
Body 10 is arranged at the component of drilling well position.In these areas, drilling well position may correspond to the bottom in boring for (a) breech lock body 10
And/or the engagement between the landing point of end and/or (b) breech lock body 10 and drill string.In one aspect, when drill bit assembly 100 He
Breech lock body 10 combine when landing ring known in the art uses it is contemplated that, for confirming for breech lock body 10 to be arranged at drilling well position
Component may include the component for detecting the engagement between breech lock body and landing ring and/or between interior tube assembly and landing ring.
On the other hand it is contemplated that, for confirm breech lock body 10 is arranged at drilling well position component may include for detecting breech lock body
The component of flow of fluid and/or pressure change in 10.It yet still another aspect, when tube head assembly 100 includes as conventionally known in the art
Multiple rollers, one or more retaining spring, and during multiple breech lock it is contemplated that, for confirm breech lock body 10 is arranged at brill
The component that well location is put may include the component for roll tube head assembly 100 so that producing enough centrifugal force radially outward to drive
One or more rollers of dynamic tube head assembly, overcome the load of one or more retaining springs, and multiple breech locks are deployed to brill
During well location is put.Can expect, tube head assembly 100 rotation in this way can ensure that drilling well (breech lock) position reaching breech lock body 10.
In operation, it is further contemplated that when breech lock body 10 is arranged on drilling well (breech lock) position, centrifugal force can enter pipe by driving rolls
The locking of head assembly 100 couples groove and allows the floor plane below each roller somewhat to rotate, thus roller is wedged locking
Position driving tube head assembly is with drill string rotating.
Can expect, in some deformation of described drill bit assembly 100, breech lock body 10 and/or fluid control sub-component 60
One or more of various parts part may be incorporated into instrument and/or object on various other down-holes or well.
It is further contemplated that described drill bit assembly 100 and/or breech lock body 10 may include U.S. Patent number 5,934,393, the U.S.
The patent No. 6,029,758, U.S. Patent number 6,089, disclosed in 335, and U.S. Patent Application Publication No. 2010/0012383
One or more of part and feature part and feature, each patent is hereby incorporated by reference in their entirety.
Although some embodiments of the present invention have been disclosed in description above, those skilled in the art should manage
Solution, it is contemplated that many modifications of the related present invention of the benefit of teaching with above description and relevant drawings offer of the present invention
With other embodiments.It will be understood, therefore, that the present invention is not limited to above-disclosed specific embodiments, and many modifications
It is intended to be included in the scope of the appended claims with other embodiments.In addition, though this paper and the right enclosed
Employ particular term in claim, but they are only used for generic and descriptive sense, rather than described in order to limit
The present invention, be not to limit appended claims.
Claims (26)
1. the breech lock body in a kind of drill bit assembly for having fluid control sub-component and check valve element, described breech lock body tool
There are the longitudinal axis, longitudinal length, close end, and distal portion, described breech lock body restriction centre bore, described centre bore is along described breech lock body
Described longitudinal length extends through described close end and the distal portion of described breech lock body, and described breech lock body includes:
Multiple male protrusions, the described longitudinal axis of described male protrusions inwardly described breech lock body extend and with described breech lock
The described longitudinal axis of body is spaced apart, and each outthrust in the plurality of male protrusions has the described longitudinal axis with described breech lock body
Separate the front end of selected distance；
Multiple passages, described passage extends radially outwardly from the described longitudinal axis of described breech lock body, each in the plurality of passage
The described front end of the adjacent male protrusions of channel crosses, each passage in wherein said multiple passages is substantially u shape,
The described distal portion of wherein said breech lock body includes port part, and described port part limits the described center with described breech lock body
The chamber that hole is in fluid communication；And at least one port with described chamber in fluid communication, the described chamber of wherein said port part
It is configured to receive at least a portion of described check valve element, and
The described close end of wherein said breech lock body is configured to control sub-component to support the described fluid of described drill bit assembly
In operating position.
2. breech lock body as claimed in claim 1, the described chamber of wherein said port part has inner surface, described inner surface quilt
Configuration with promote described check valve element wherein at least one of blocking position of the excessively described chamber of block fluid flow and its
Move between the middle open position allowing fluid to flow through described chamber.
3. breech lock body as claimed in claim 1, the described front end of each outthrust in wherein said multiple male protrusions
Edge surface including substantially flat.
4. breech lock body as claimed in claim 2, it is also included in the described chamber be at least partially recessed into described port part
Spring, described spring is configured to for described check valve element to be biased in described blocking position.
5. a kind of drill bit assembly, comprising:
Breech lock body, described breech lock body has the longitudinal axis, longitudinal length, close end, and distal portion, and described breech lock body limits centre bore,
Described centre bore extends through described close end and the distal portion of described breech lock body, institute along the described longitudinal length of described breech lock body
State breech lock body to include:
Multiple male protrusions, the described longitudinal axis of described male protrusions inwardly described breech lock body extend and with described breech lock
The described longitudinal axis of body is spaced apart, and each outthrust in the plurality of male protrusions has the described longitudinal axis with described breech lock body
Separate the front end of selected distance；With
Multiple passages, described passage extends radially outwardly from the described longitudinal axis of described breech lock body, each in the plurality of passage
The described front end of the adjacent male protrusions of channel crosses,
Each passage in multiple passages of wherein said breech lock body is substantially u shape, and
The described distal portion of wherein said breech lock body includes port part, and described port part includes the described center with described breech lock body
The chamber that hole is in fluid communication；And at least one port with described chamber in fluid communication；
Check valve element, at least a portion of described check valve element is arranged at the described of the described port part of described breech lock body
In chamber；
Hollow spindle, described hollow spindle be operably coupled to the described port part of described breech lock body described chamber and with institute
State the described chamber in fluid communication of the described port part of breech lock body；With
Fluid controls sub-component,
The described close end of wherein said breech lock body is configured to for described fluid control sub-component to be supported on operating position.
6. drill bit assembly as claimed in claim 5, the described chamber of the described port part of wherein said breech lock body has interior table
Face, described inner surface is configured to promote at least a portion of the described check valve element excessively described chamber of block fluid flow wherein
Blocking position and wherein allow fluid to flow through to move between the open position of described chamber.
7. drill bit assembly as claimed in claim 6, wherein said hollow spindle is configured to support described check valve element
In described blocking position.
8. drill bit assembly as claimed in claim 7, wherein said breech lock body also includes being at least partially recessed into described port
Spring in the described chamber in portion, described spring is configured to for described check valve element to be biased in institute against described hollow spindle
State blocking position.
9. drill bit assembly as claimed in claim 6, wherein said fluid controls sub-component to include:
Valve chamber, described valve chamber is set to connect with the described bore fluid of described breech lock body, and described valve chamber has and described door bolt
The common longitudinal axis of lock body；
Valve member, described valve member is arranged in described valve chamber and is configured to carry out the shifting with respect to described common longitudinal
Dynamic；With
Spring, described spring is arranged in described valve chamber so that described spring adjoins the described close end of described breech lock body simultaneously
Against the biasing of described valve member.
10. drill bit assembly as claimed in claim 9, wherein said fluid controls sub-component also to include being arranged in described valve chamber
And axially surround at least one of bushing of described spring.
11. drill bit assemblies as claimed in claim 9, the plurality of passage of wherein said breech lock body is configured to allow fluid
Control described valve member and the flowing of described check valve element of sub-component with respect to described common longitudinal around described fluid.
12. drill bit assemblies as claimed in claim 5, each in the plurality of male protrusions of wherein said breech lock body is dashed forward
The described front end going out thing includes the edge surface of substantially flat.
13. drill bit assemblies as claimed in claim 5, wherein said fluid controls sub-component to include:
Valve chamber, described valve chamber is set to connect with the described bore fluid of described breech lock body, and described valve chamber has and described door bolt
The common longitudinal axis of lock body；
Valve member, described valve member is arranged in described valve chamber and is configured to carry out the shifting with respect to described common longitudinal
Dynamic；With
Spring, described spring is arranged in described valve chamber so that described spring adjoins the described close end of described breech lock body simultaneously
Against the biasing of described valve member.
14. drill bit assemblies as claimed in claim 13, wherein said fluid controls sub-component also to include being arranged on described valve chamber
In and axially surround at least one of bushing of described spring.
15. drill bit assemblies as claimed in claim 13, the plurality of passage of wherein said breech lock body is configured to allow stream
Body phase controls described valve member and the flowing of described check valve element of sub-component for described common longitudinal around described fluid.
A kind of 16. drill bit assemblies, comprising:
Breech lock body, described breech lock body has the longitudinal axis, longitudinal length, close end, and distal portion, and described breech lock body limits centre bore,
Described centre bore extends through described close end and the distal portion of described breech lock body, institute along the described longitudinal length of described breech lock body
State breech lock body to include:
Multiple male protrusions, the described longitudinal axis of described male protrusions inwardly described breech lock body extend and with described breech lock
The described longitudinal axis of body is spaced apart, and each outthrust in the plurality of male protrusions has the described longitudinal axis with described breech lock body
Separate the front end of selected distance；With
Multiple passages, described passage extends radially outwardly from the described longitudinal axis of described breech lock body, each in the plurality of passage
The described front end of the adjacent male protrusions of channel crosses,
The described distal portion of wherein said breech lock body includes port part, and described port part includes the described center with described breech lock body
The chamber that hole is in fluid communication；And at least one port with described chamber in fluid communication；
Check valve element, at least a portion of described check valve element is arranged at the described of the described port part of described breech lock body
In chamber；With
Fluid controls sub-component, and described fluid controls sub-component to have the longitudinal axis common with described breech lock body, and described fluid controls
Sub-component includes:
Valve member, described valve member is configured to carry out the movement with respect to described common longitudinal；
Spring, described spring is arranged to adjoin the described close end of described valve member and described breech lock body so that described spring
Against the biasing of described valve member；With
Bushing, described bushing axially surrounds at least a portion that described fluid controls the described spring of sub-component；
The described close end of wherein said breech lock body is configured to for described fluid control sub-component to be supported on operating position, and
Each outthrust in the plurality of male protrusions of wherein said breech lock body limits near-end mating surface, described near-end
Mating surface is oriented the described common longitudinal being substantially perpendicular to described breech lock body and described fluid control sub-component, described
The described near-end mating surface of each male protrusions in multiple male protrusions is configured to adjacent described fluid and controls son
The described spring of assembly.
17. drill bit assemblies as claimed in claim 16, each in the plurality of male protrusions of wherein said breech lock body
Outthrust is further defined by far-end mating surface, and described far-end mating surface is configured to respect to described breech lock body and described fluid
The described common longitudinal controlling sub-component, towards after the mobile described check valve element of the described close end of described breech lock body, adjoins
Described check valve element.
Breech lock body in a kind of 18. drill bit assemblies for having fluid control sub-component and check valve element, described breech lock body
There is the longitudinal axis, longitudinal length, close end, and distal portion, described breech lock body limits centre bore, and described centre bore is along described breech lock body
Described longitudinal length extend through described close end and the distal portion of described breech lock body, described breech lock body includes:
Multiple male protrusions, the described longitudinal axis of described male protrusions inwardly described breech lock body extend and with described breech lock
The described longitudinal axis of body is spaced apart, and each outthrust in the plurality of male protrusions has the described longitudinal axis with described breech lock body
Separate the front end of selected distance；
Multiple passages, described passage extends radially outwardly from the described longitudinal axis of described breech lock body, each in the plurality of passage
The described front end of the adjacent male protrusions of channel crosses,
The described distal portion of wherein said breech lock body includes port part, and described port part limits the described center with described breech lock body
The chamber that hole is in fluid communication；And at least one port with described chamber in fluid communication, the described chamber of wherein said port part
It is configured to receive at least a portion of described check valve element,
The described close end of wherein said breech lock body is configured to control sub-component to support the described fluid of described drill bit assembly
In operating position,
The described chamber of wherein said port part has inner surface, and described inner surface is configured to promote described check valve element to exist
Wherein at least one of blocking position of the excessively described chamber of block fluid flow and wherein permission fluid flow through beating of described chamber
Move between open position, and
Wherein said breech lock body also includes the spring in the described chamber be at least partially recessed into described port part, described spring
It is configured to for described check valve element to be biased in described blocking position.
19. breech lock bodies as claimed in claim 18, each outthrust in wherein said multiple male protrusions described before
End includes the edge surface of substantially flat.
20. breech lock bodies as claimed in claim 18, each passage in wherein said multiple passages is substantially u shape.
A kind of 21. drill bit assemblies, comprising:
Breech lock body, described breech lock body has the longitudinal axis, longitudinal length, close end, and distal portion, and described breech lock body limits centre bore,
Described centre bore extends through described close end and the distal portion of described breech lock body, institute along the described longitudinal length of described breech lock body
State breech lock body to include:
Multiple male protrusions, the described longitudinal axis of described male protrusions inwardly described breech lock body extend and with described breech lock
The described longitudinal axis of body is spaced apart, and each outthrust in the plurality of male protrusions has the described longitudinal axis with described breech lock body
Separate the front end of selected distance；With
Multiple passages, described passage extends radially outwardly from the described longitudinal axis of described breech lock body, each in the plurality of passage
The described front end of the adjacent male protrusions of channel crosses,
The described distal portion of wherein said breech lock body includes port part, and described port part includes the described center with described breech lock body
The chamber that hole is in fluid communication；And at least one port with described chamber in fluid communication；
Check valve element, at least a portion of described check valve element is arranged at the described of the described port part of described breech lock body
In chamber；
Hollow spindle, described hollow spindle be operably coupled to the described port part of described breech lock body described chamber and with institute
State the described chamber in fluid communication of the described port part of breech lock body；With
Fluid controls sub-component,
The described close end of wherein said breech lock body is configured to for described fluid control sub-component to be supported on operating position,
The described chamber of the described port part of wherein said breech lock body has inner surface, and it is described that described inner surface is configured to promotion
At least one of blocking position of the excessively described chamber of block fluid flow and wherein permission fluid flow through check valve element wherein
Move between the open position of described chamber,
Wherein said hollow spindle is configured to for described check valve element to be supported on described blocking position, and
Wherein said breech lock body also includes the spring in the described chamber be at least partially recessed into described port part, described spring
It is configured to for described check valve element to be biased in described blocking position against described hollow spindle.
22. drill bit assemblies as claimed in claim 21, each in the plurality of male protrusions of wherein said breech lock body
The described front end of outthrust includes the edge surface of substantially flat.
23. drill bit assemblies as claimed in claim 21, each the passage base in the plurality of passage of wherein said breech lock body
It is u shape on this.
24. drill bit assemblies as claimed in claim 21, wherein said fluid controls sub-component to include:
Valve chamber, described valve chamber is set to connect with the described bore fluid of described breech lock body, and described valve chamber has and described door bolt
The common longitudinal axis of lock body；
Valve member, described valve member is arranged in described valve chamber and is configured to carry out the shifting with respect to described common longitudinal
Dynamic；With
Spring, described spring is arranged in described valve chamber so that described spring adjoins the described close end of described breech lock body simultaneously
Against the biasing of described valve member.
25. drill bit assemblies as claimed in claim 24, wherein said fluid controls sub-component also to include being arranged on described valve chamber
In and axially surround at least one of bushing of described spring.
26. drill bit assemblies as claimed in claim 24, the plurality of passage of wherein said breech lock body is configured to allow stream
Body phase controls described valve member and the flowing of described check valve element of sub-component for described common longitudinal around described fluid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2012/052063 WO2014031120A1 (en) | 2012-08-23 | 2012-08-23 | Latch body components having multiple functions, and drilling head assembly incorporating same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104520525A CN104520525A (en) | 2015-04-15 |
| CN104520525B true CN104520525B (en) | 2017-01-18 |
Family
ID=50150275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074418.6A Expired - Fee Related CN104520525B (en) | 2012-08-23 | 2012-08-23 | Latch body components having multiple functions, and drilling head assembly incorporating same |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2888432B1 (en) |
| CN (1) | CN104520525B (en) |
| AU (1) | AU2012388216B2 (en) |
| BR (1) | BR112014033068A2 (en) |
| CA (1) | CA2877113C (en) |
| WO (1) | WO2014031120A1 (en) |
| ZA (1) | ZA201500020B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11242719B2 (en) | 2017-11-27 | 2022-02-08 | Chevron U.S.A. Inc. | Subterranean coring assemblies |
| US10577879B2 (en) * | 2017-11-27 | 2020-03-03 | Chevron U.S.A. Inc. | Subterranean coring assemblies |
| CN113302376B (en) * | 2018-11-06 | 2024-02-23 | 坎里格机器人技术有限公司 | Lift for lifting tubular members of various sizes with independent articulation of certain jaws |
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| US5934393A (en) * | 1997-02-19 | 1999-08-10 | Boart Longyear International Holdings, Inc. | Core barrel apparatus |
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| CN101675205A (en) * | 2007-03-03 | 2010-03-17 | 博尔特朗耶尔 | High productivity core drilling system |
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| US8485280B2 (en) * | 2009-10-07 | 2013-07-16 | Longyear Tm, Inc. | Core drilling tools with retractably lockable driven latch mechanisms |
| NO334083B1 (en) * | 2009-11-04 | 2013-12-09 | Devico As | Core drill head for drilling system |
| EP2611986A1 (en) * | 2010-08-30 | 2013-07-10 | Atlas Copco Canada Inc. | Quickly reconfigurable core barrel head assembly |
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2012
- 2012-08-23 WO PCT/US2012/052063 patent/WO2014031120A1/en active Application Filing
- 2012-08-23 EP EP12883130.2A patent/EP2888432B1/en active Active
- 2012-08-23 CN CN201280074418.6A patent/CN104520525B/en not_active Expired - Fee Related
- 2012-08-23 AU AU2012388216A patent/AU2012388216B2/en active Active
- 2012-08-23 BR BR112014033068A patent/BR112014033068A2/en not_active IP Right Cessation
- 2012-08-23 CA CA2877113A patent/CA2877113C/en active Active
-
2015
- 2015-01-05 ZA ZA2015/00020A patent/ZA201500020B/en unknown
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|---|---|---|---|---|
| US4800969A (en) * | 1987-11-24 | 1989-01-31 | Longyear Company | Fast descent core barrel apparatus |
| US5934393A (en) * | 1997-02-19 | 1999-08-10 | Boart Longyear International Holdings, Inc. | Core barrel apparatus |
| US6029758A (en) * | 1997-11-24 | 2000-02-29 | Boart Longyear International Holdings, Inc. | Retractable core barrel valving apparatus |
| US6089335A (en) * | 1998-12-16 | 2000-07-18 | Boart Longyear International Holdings, Inc. | Positive latch core barrel apparatus |
| CN101675205A (en) * | 2007-03-03 | 2010-03-17 | 博尔特朗耶尔 | High productivity core drilling system |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112014033068A2 (en) | 2017-06-27 |
| ZA201500020B (en) | 2016-10-26 |
| EP2888432A1 (en) | 2015-07-01 |
| CN104520525A (en) | 2015-04-15 |
| WO2014031120A1 (en) | 2014-02-27 |
| CA2877113C (en) | 2015-12-15 |
| AU2012388216B2 (en) | 2017-01-05 |
| AU2012388216A1 (en) | 2015-01-22 |
| EP2888432B1 (en) | 2019-07-24 |
| EP2888432A4 (en) | 2016-06-01 |
| CA2877113A1 (en) | 2014-02-27 |
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