CN107461173B - Water injection well completion integrated tool - Google Patents
Water injection well completion integrated tool Download PDFInfo
- Publication number
- CN107461173B CN107461173B CN201710701534.0A CN201710701534A CN107461173B CN 107461173 B CN107461173 B CN 107461173B CN 201710701534 A CN201710701534 A CN 201710701534A CN 107461173 B CN107461173 B CN 107461173B
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- China
- Prior art keywords
- pressing cap
- upper pressing
- central tube
- water filling
- seating nipple
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000007924 injection Substances 0.000 title abstract description 20
- 238000002347 injection Methods 0.000 title abstract description 20
- 238000003825 pressing Methods 0.000 claims abstract description 78
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 43
- 210000000078 claw Anatomy 0.000 claims description 25
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 2
- 230000003416 augmentation Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000003190 augmentative effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008646 thermal stress Effects 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention provides a water injection well completion integrated tool, which comprises: pressing the cap upwards; the upper end of the lower pressing cap is connected with the lower end of the upper pressing cap through internal threads; the central tube is placed in the upper pressing cap, and the upper end of the central tube is connected with the upper pressing cap through a fixing pin; the upper section of the sliding sleeve is positioned between the central pipe and the upper pressure cap, the lower section of the sliding sleeve is adjacent to the inner side wall of the upper pressure cap and is connected with the upper pressure cap through a shearing pin, and a ball seat for placing a plugging ball is formed in the lower port of the sliding sleeve; when the cutting pin is cut off, the sliding sleeve can slide downwards so as to enable the corresponding outer pore passage to be communicated with the inner pore passage. The invention simplifies the operation process, saves the operation cost, can realize the functions of well completion, injection augmentation, water injection and the like, and improves the oil field development effect.
Description
Technical field
The invention belongs to field of petroleum exploitation more particularly to waterflooding extraction fields, specifically, being a kind of to have filled the water well one
Body chemical industry tool.
Background technique
Currently, most of ligh-oil reservoir is all made of waterflooding extraction supplement stratum ability, with deepening continuously for exploitation, injection
Well exposes following several respects problem: first is that current separate zone waterflooding technology string creep, vibration are seriously, when well depth is more than
After 1500m, injection string can occur significantly to shake, and cause packer to wriggle or shake, destroy the sealer having built up
System, or even destroy packing element；Second is that oil pipe stress is flexible serious, it mainly include water injection pressure and thermal stress, the compensation used in the past
Anchor tool cannot prevent completely the elastic telescopic variation of the neighbouring oil pipe of packer, in turn result in packer with oil pipe extension and
It wriggles up and down, causes to be destroyed；Third is that low-permeability oil deposit is needed using necessary increasing yield and injection measure, and current
Implementation process is complicated, cumbersome, and the implementation cycle is long；Fourth is that allocation process causes vertical resolution limited because of latus rectum problem with one heart, and survey
Adjust that the process is more complicated, with the increase of well depth, distributor surveys modulation and obtains very difficult, shows as caused by oil pipe compressive deformation
Do not enter under instrument and the larger caused instrument docking success rate of deep-well hole deviation is low.For these reasons, injection well is caused to be sealed
Serious every device failure, the stake period is long, is measured and tuned into that power is low, and application effect is poor.
In view of this, the present inventor develops a kind of note according to the production design experience for being engaged in this field and related fields
Water completion integral tool, it is of the existing technology to solve the problems, such as.
Summary of the invention
The purpose of the invention is to provide a kind of water filling completion integral tools, simplify flow chart, have saved work
Industry cost has been able to achieve the functions such as well, augmented injection and water filling, has improved Development Response of Oilfield.
For this purpose, the present invention proposes a kind of water filling completion integral tool comprising:
Upper pressing cap；
Lower pressing cap, the upper end are connected by internal screw thread with the lower end of the upper pressing cap；
Central tube is placed in the upper pressing cap, and the upper end is connected by fixing pin with the upper pressing cap；
Sliding sleeve, section is between the central tube and the upper pressing cap thereon, and lower section is adjacent in the upper pressing cap
Side wall, and be connected between the upper pressing cap by cutting pin, it is formed with one in the lower port of the sliding sleeve and is sealed for placing
The ball seat of stifled ball；
Wherein, outer duct is offered on the side wall of the upper pressing cap, and the outer duct is corresponded on the side wall of the central tube
Be provided with inner duct, when the cutting pin cut when, the sliding sleeve energy slide downward so that the corresponding outer duct and
The inner duct is connected.
Water filling completion integral tool as described above, wherein projection is formed with righting on the lateral surface of the upper pressing cap
Block, along the axially extending setting of the upper pressing cap, the outer duct is located on the wiper block wiper block.
Water filling completion integral tool as described above, wherein the upper pressing cap is circumferentially arranged multiple rightings
Block, each wiper block is uniformly distributed along the circumferential direction of the upper pressing cap, and is respectively arranged with outer duct.
Water filling completion integral tool as described above, wherein ring, which is set, on the inner sidewall of the lower pressing cap is formed with support
Platform, it is described when sliding over slide downward, support can be corresponded on the supporting table.
Water filling completion integral tool as described above, wherein be convexly equipped with Anti-rotary block on the outside of the upper end of the central tube, institute
It states and is formed with anti-rotation groove on the inner wall of upper pressing cap, the Anti-rotary block correspondence is embedded in the anti-rotation groove.
Water filling completion integral tool as described above, wherein the Anti-rotary block and anti-rotation groove be correspondingly arranged on it is multiple, and
It is evenly distributed the inner wall of the lateral surface and the upper pressing cap in the central tube respectively.
Water filling completion integral tool as described above, wherein be additionally provided with a seating nipple, the seating nipple is placed in described
In central tube, it is formed with elastic claw on the lateral surface of the seating nipple, is equipped with protrusion, lower end and institute on the outside of the upper end of the elastic claw
It states seating nipple to be connected, is formed with U-shaped opening between the elastic claw and the side wall of the seating nipple；
Limiting section corresponding with the elastic claw is formed on the inner sidewall of the central tube, the limiting section includes multiple
Limit sliding chutes, each limit sliding chutes and the shape of the protrusion match, and are located at the upside of the inner duct, and along described
The axial direction of central tube is set in sequence, and the protrusion of the elastic claw can be embedded in any limit sliding chutes, when the protrusion is located at
When the limit sliding chutes of top side, the seating nipple is corresponding to block the inner duct；
Wherein, when the seating nipple from top to bottom moves in the central tube, the protrusion of the elastic claw can be along successively
It is moved between each limit sliding chutes, the U-shaped opening is connected to area with the inner duct then by small gradually big.
Water filling completion integral tool as described above, wherein the bore slided at the ball seat upper port is small
In the internal diameter of the seating nipple.
Water filling completion integral tool as described above, wherein the inner surface at the upper port of the ball seat be formed with
The mutually closely connected smooth surface in the outer surface of the ball sealer.
Water filling completion integral tool as described above, wherein the upper end edge of the upper pressing cap, which axially protrudes out, is formed with one
The lower end undergauge of top connection, the lower pressing cap is formed with a lower contact.
Compared with prior art, water filling completion integral tool proposed by the present invention, can realize well, augmented injection and note simultaneously
The functions such as water, simplify flow chart, have saved operating cost, can improve the vertical resolution of concentric injection allocation mode, expand survey
Test instrument tripping in space；Docking mechanism is adjusted using mechanical survey, simplifies commissioning process process, the docking for reducing test equipment is difficult
Degree, and then improve Development Response of Oilfield.
Detailed description of the invention
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein:
Fig. 1 is the composed structure schematic diagram of water filling completion integral tool of the invention.
Fig. 2 sets the working state schematic representation after suppressing in investment ball sealer for the present invention.
Fig. 3 is the working state schematic representation of tripping in seating nipple in the present invention.
Fig. 4 is the assembly end-view of the Anti-rotary block of the anti-rotation groove and central tube of upper pressing cap in the present invention.
Fig. 5 is the sectional view of seating nipple in the present invention.
Main element label declaration:
The outer duct of 1 upper pressing cap 10
11 wiper block, 12 anti-rotation groove
13 top connection, 2 lower pressing cap
21 supporting table, 22 lower contact
3 central tube, 30 inner duct
31 fixing pin, 32 Anti-rotary block
33 limit sliding chutes, 4 sliding sleeve
41 cut 42 ball seat of pin
5 seating nipple, 51 elastic claw
52 protrusion, 53 U-shaped opening
Specific embodiment
The present invention proposes a kind of water filling completion integral tool comprising: upper pressing cap；Lower pressing cap, the upper end pass through interior spiral shell
Line is connected with the lower end of the upper pressing cap；Central tube is placed in the upper pressing cap, the upper end by fixing pin with it is described
Upper pressing cap is connected；Sliding sleeve, section is between the central tube and the upper pressing cap thereon, and lower section is adjacent to the upper pressing cap
Inner sidewall, and be connected between the upper pressing cap by cutting pin, one be formed in the lower port of the sliding sleeve for putting
Set the ball seat of ball sealer；Wherein, outer duct is offered on the side wall of the upper pressing cap, on the side wall of the central tube described in correspondence
Outer duct is provided with inner duct, when the cutting pin is cut, the sliding sleeve energy slide downward, so that corresponding described outer
Duct and the inner duct are connected.
Water filling completion integral tool of the invention, simplifies flow chart, has saved operating cost, be able to achieve well,
The functions such as augmented injection and water filling, improve Development Response of Oilfield.
For a clearer understanding of the technical characteristics, objects and effects of the present invention, below in conjunction with attached drawing and preferably
Embodiment, to specific embodiment, structure, feature and effect of water filling completion integral tool proposed by the present invention, specifically
It is bright as after.In addition, by the explanation of specific embodiment, when the technological means that predetermined purpose is taken can be reached to the present invention
And effect is able to more deeply specific understanding, however institute's attached drawing is only to provide reference and description use, is not used to the present invention
It limits.
Fig. 1 is the composed structure schematic diagram of water filling completion integral tool of the invention.Fig. 2 is that the present invention is blocked in investment
Ball sets the working state schematic representation after suppressing.Fig. 3 is the working state schematic representation of tripping in seating nipple in the present invention.Fig. 4 is this
The assembly end-view of the Anti-rotary block of the anti-rotation groove and central tube of upper pressing cap in invention.Fig. 5 is the sectional view of seating nipple in the present invention.
As shown in Figure 1, water filling completion integral tool proposed by the present invention, including upper pressing cap 1, lower pressing cap 2, central tube 3
And sliding sleeve 4, in which:
2 upper end of lower pressing cap is connected by internal screw thread with the lower end of the upper pressing cap, as shown, the upper pressing cap 1,
Lower pressing cap 2 is tubular structure, and specific length, diameter equidimension as the two are not specifically limited herein, can be according to reality
Depending on needing；
The central tube 3 is placed in the upper pressing cap 1, and the upper end is connected by fixing pin 31 with the upper pressing cap 1
It connects, in specific assembling, when the central tube 3 is by one end (being the lower end of the upper pressing cap 1 in figure) of the upper pressing cap 1, insertion
After upper pressing cap 1, then with the fixing pin 31 the two is connected；
The upper section of the sliding sleeve 4 is between the central tube 3 and the upper pressing cap 1, and lower section is adjacent to the upper pressure
The inner sidewall of cap 1, and be connected between the upper pressing cap 1 by cutting pin 41, it is formed in the lower port of the sliding sleeve 41
Have one for place ball sealer ball seat 42, in practical application, the ball seat 42 can directly be convexly equipped in the inner sidewall of the sliding sleeve 41
On；
Wherein, outer duct 10 is offered on the side wall of the upper pressing cap 1, is corresponded on the side wall of the central tube 3 described outer
Duct 10 is provided with inner duct 30, when the cutting pin 41 is cut, the 4 energy slide downward of sliding sleeve, so that corresponding
The outer duct 10 and the inner duct 30 are connected.That is, after the sliding sleeve 4 moves down, so that the outer duct 10 and interior
It is in interconnected state before duct 30, fracturing fluid, acid solution, injection water or other fluid can be made to enter stratum out of the present invention.
Wherein, projection is formed with wiper block 11 on the lateral surface of the upper pressing cap 1, and the wiper block 11 is along the upper pressing cap
Axially extending setting, the outer duct 10 is located on the wiper block 11.After under lower going-into-well of the present invention, pass through the righting
Block 11 is supported in down-hole lateral wall, can ensure that the present invention is in righting state, subsequent use of being more convenient for.
As shown in Figure 1, Figure 2 and shown in Fig. 4, in a preferred embodiment, the upper pressing cap 1 is circumferentially arranged have it is multiple described
Wiper block 1, each wiper block 11 is uniformly distributed along the circumferential direction of the upper pressing cap 1, and is respectively arranged with outer duct 10.In this way, can
Make the better righting of the wiper block 11, is also conducive to improve the flow that fluid enters stratum from the present invention, specifically, carrying out
When well cementing operation, since the maximum outside diameter and borehole size of the wiper block 11 are close, well cementation mud can avoid by outer duct 10
It blocks, reduces the difficulty that outer duct 10 is opened.
To avoid sliding sleeve 4 from falling into underground, in order to recycle to it, ring is set on the inner sidewall of the lower pressing cap 2
It is formed with supporting table 21, the sliding sleeve 4 can correspond to support on the supporting table 21 in slide downward.
Please also refer to Fig. 4, it is convexly equipped with Anti-rotary block 32 on the outside of the upper end of the central tube 3, on the inner wall of the upper pressing cap 1
It is formed with anti-rotation groove 12, the correspondence of Anti-rotary block 32 is embedded in the anti-rotation groove 12, to avoid shown central tube 3 relative to institute
State the rotation of upper pressing cap 1.
Preferably, the Anti-rotary block 32 and anti-rotation groove 12 are correspondingly arranged on multiple, and it is evenly distributed in described respectively
The inner wall of the lateral surface of heart pipe 3 and the upper pressing cap 1.
Fig. 3 and Fig. 5 is referred to, a seating nipple 5 is additionally provided with, the seating nipple 5 is placed in the central tube 3, the work
Make to be formed with elastic claw 51 on the lateral surface of cylinder 5, protrusion 52, lower end and the seating nipple are equipped on the outside of the upper end of the elastic claw 51
5 are connected, and are formed with U-shaped opening 53 between the elastic claw 51 and the side wall of the seating nipple 5；
Limiting section corresponding with the elastic claw 51 is formed on the inner sidewall of the central tube 3, the limiting section includes
Multiple limit sliding chutes 33, each limit sliding chutes 33 and the shape of the protrusion 52 match, and are located at the inner duct 30
Upside, and be set in sequence along the axial direction of the central tube 3, the protrusion 52 of the elastic claw 51 can be embedded at any limit sliding chutes
In 33, when the protrusion 52 is located at the limit sliding chutes 33 of top side, the seating nipple 5 is corresponding to block the inner duct 30
(please also refer to Fig. 3)；
Wherein, when the seating nipple 5 from top to bottom moves in the central tube 3,52 energy of protrusion of the elastic claw 51
Along successively being moved between each limit sliding chutes 33, the connection area of the U-shaped opening 53 and the inner duct 30 then by it is small gradually
Greatly.It, can be with the inner duct 30 using the U-shaped opening 53 between 51 side of elastic claw and seating nipple 5 in this practical new shape
And the corresponding connection in the outer duct 10, enable liquid stream by the inner cavity of the seating nipple 5 through the inner duct 30, outer duct 10
Inject stratum.In this way, moving up and down in the central tube 3 by the seating nipple 5, the flow of liquid stream can control, wherein when
When the protrusion 52 of elastic claw 51 is located at top side limit sliding chutes 53, the connection of the U-shaped opening 53 and inner duct 30 is closed；The limit
Each limit sliding chutes 33 in portion can form multi-gear adjustment, when described one grade of 5 downlink of seating nipple, represent injection flow and mention step by step
Height, last step (lower side limit sliding chutes 33) represents maximum injection flow, that is, the protrusion 52 when elastic claw 51 is located at lower side
When limit sliding chutes 53, the connection area of the U-shaped opening 53 and inner duct 30 is maximum.
As a result, by setting seating nipple 5, it is adjustable the flow from present invention injection stratum, in addition, working as the bullet of seating nipple 5
For pawl 51 when into or out of limit sliding chutes 33, the protrusion 52 can be to the seating nipple under the contact of 33 cell wall of limit sliding chutes
Deformation, so that the opening area of U-shaped opening 53 changes, also has the function of temporarily adjusting flow in 5.
In actual fabrication, U-shaped opening 53 can be opened up on the seating nipple 5 in advance, then directly form the elastic claw 51,
Alternatively, setting one is open on the seating nipple 5 in advance, then the elastic claw 51 is installed on the opening, to make its side
The U-shaped opening is formed between the seating nipple 5.In addition, for the quantity of the elastic claw 51 and limiting section, it can be according to practical need
Depending on wanting, it is not specifically limited herein；And between the adjacent limit sliding chutes of the limiting section, processing can be advanced optimized, is formed
Smooth excessive connection, the more conducively movement of protrusion 52；The limit sliding chutes 53 and the shape of protrusion 52, it is preferably semicircle.
Further, bore of the sliding sleeve 4 at 42 upper port of ball seat is less than the internal diameter of the seating nipple 9, makes
The sliding sleeve 4 can relative to the seating nipple 9 formed a step can be right when the seating nipple 9 is displaced downwardly to the ball seat 42
The seating nipple 9 is limited, and prevents it from falling off from the present invention.
In the preferred embodiment, the inner surface at the upper port of the ball seat 42 is formed with outer with the ball sealer 6
The mutually closely connected smooth surface in surface.In actual work, the ball seat 42 is using the outer surface with ball sealer with the smooth song of curvature
Face design, compared with existing linear face, the present invention falls into ball sealer after ball seat, will not rupture because of dotted stress, improves
The safety that ball sealer uses.
To connect convenient for the present invention with other components, the upper end edge of the upper pressing cap 1, which axially protrudes out, is formed with a top connection
13, the lower end undergauge of the lower pressing cap 2 is formed with a lower contact 22.
It is latter to be connected to casing in actual work by water filling completion integral tool provided by the invention for top connection 13
And it goes into the well；Behind predetermined position of the present invention in well, ball sealer 6 is put into underground, through casing and is set to the ball sealer 6
In the ball seat 42 of the sliding sleeve 4, from ground, into inner cavity of the invention, fluid injection is suppressed, and is held at ball sealer 6 and the ball seat 42
When the hydraulic coupling received is greater than cutting 41 shearing force of pin, the cutting pin 41 is cut, work of the sliding sleeve 4 in hydraulic coupling
It is moved down under, so that the inner duct 30 and outer duct 10 are interconnected, forms reservoir channel；Then, according to work
Need, enter stratum from ground fluid injection and by the inner duct 30 and outer duct 10, thus realize to pressure break, acidification and
The purpose of instantaneous high displacement pump note.
Wherein, according to live actual implementation needs, can also by milling operation and acid etching operation to the ball seat 42 and
Ball sealer 6 carries out milling and dissolution, so that inner cavity of the invention is reverted to breakthrough status, it is subsequent can between on the downside of the present invention
Shaft bottom carries out operation.
Wherein, can also be by steel wire by 5 tripping in of seating nipple central tube 3 of the invention, and pass through the elastic claw 51
Protrusion 52 docked with the limit sliding chutes 33, then, according to need of work, by controlling the seating nipple 5 at the center
It is moved up and down in pipe 3, to according to the actual situation, adjust liquid stream in real time from the central tube 3 and pass through the inner duct 30, exit orifice
Road 10 enters the flow on stratum, convenient and practical, improves validity period and the validity of separate injection tubing string, improves Development Response of Oilfield
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.It is any
Those skilled in the art, under the premise of not departing from design and the principle of the present invention made by equivalent changes and modifications, should all
Belong to the scope of protection of the invention.
Claims (9)
1. a kind of water filling completion integral tool, which is characterized in that above-mentioned water filling completion integral tool includes:
Upper pressing cap；
Lower pressing cap, the upper end are connected by internal screw thread with the lower end of the upper pressing cap；
Central tube is placed in the upper pressing cap, and the upper end is connected by fixing pin with the upper pressing cap；
Sliding sleeve, thereon section between the central tube and the upper pressing cap, lower section adjacent to the upper pressing cap inner sidewall,
And be connected between the upper pressing cap by cutting pin, one is formed in the lower port of the sliding sleeve for placing ball sealer
Ball seat；
Wherein, outer duct is offered on the side wall of the upper pressing cap, and the outer duct setting is corresponded on the side wall of the central tube
There is inner duct, when the cutting pin is cut, the sliding sleeve energy slide downward, so that the corresponding outer duct and described
Inner duct is connected；
It is additionally provided with a seating nipple, the seating nipple is placed in the central tube, is formed with bullet on the lateral surface of the seating nipple
The upper end outside of pawl, the elastic claw is equipped with protrusion, and lower end is connected with the seating nipple, the elastic claw and the seating nipple
U-shaped opening is formed between side wall；
Limiting section corresponding with the elastic claw is formed on the inner sidewall of the central tube, the limiting section includes multiple limits
Sliding slot, each limit sliding chutes and the shape of the protrusion match, and are located at the upside of the inner duct, and along the center
The axial direction of pipe is set in sequence, and the protrusion of the elastic claw can be embedded in any limit sliding chutes, when the protrusion is positioned at most upper
When the limit sliding chutes of side, the seating nipple is corresponding to block the inner duct；
Wherein, when the seating nipple from top to bottom moves in the central tube, the protrusion of the elastic claw can be along the center
The axial direction of pipe successively moves between each limit sliding chutes, the connection area of the U-shaped opening and the inner duct then by it is small gradually
Greatly.
2. water filling completion integral tool as described in claim 1, which is characterized in that projection on the lateral surface of the upper pressing cap
It is formed with wiper block, along the axially extending setting of the upper pressing cap, the outer duct is located on the wiper block wiper block.
3. water filling completion integral tool as claimed in claim 2, which is characterized in that the upper pressing cap is circumferentially arranged have it is more
A wiper block, each wiper block is uniformly distributed along the circumferential direction of the upper pressing cap, and is respectively arranged with outer duct.
4. water filling completion integral tool as claimed in claim 1 or 3, which is characterized in that on the inner sidewall of the lower pressing cap
Ring, which is set, is formed with supporting table, described when sliding over slide downward, can correspond to support on the supporting table.
5. water filling completion integral tool as described in claim 1, which is characterized in that projection on the outside of the upper end of the central tube
There is Anti-rotary block, anti-rotation groove is formed on the inner wall of the upper pressing cap, the Anti-rotary block correspondence is embedded in the anti-rotation groove.
6. water filling completion integral tool as claimed in claim 5, which is characterized in that the Anti-rotary block and anti-rotation groove correspondence are set
It is equipped with inner walls that are multiple, and being evenly distributed the lateral surface and the upper pressing cap in the central tube respectively.
7. water filling completion integral tool as described in claim 1, which is characterized in that described to slide over the ball seat upper port
The bore at place is less than the internal diameter of the seating nipple.
8. water filling completion integral tool as described in claim 1, which is characterized in that the interior table at the upper port of the ball seat
Face is formed with the smooth surface mutually closely connected with the outer surface of the ball sealer.
9. water filling completion integral tool as described in claim 1, which is characterized in that the upper end edge of the upper pressing cap is axially convex
It stretches and is formed with a top connection, the lower end undergauge of the lower pressing cap is formed with a lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701534.0A CN107461173B (en) | 2017-08-16 | 2017-08-16 | Water injection well completion integrated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701534.0A CN107461173B (en) | 2017-08-16 | 2017-08-16 | Water injection well completion integrated tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107461173A CN107461173A (en) | 2017-12-12 |
| CN107461173B true CN107461173B (en) | 2019-11-08 |
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ID=60549234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710701534.0A Active CN107461173B (en) | 2017-08-16 | 2017-08-16 | Water injection well completion integrated tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461173B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420526Y (en) * | 2009-05-20 | 2010-03-10 | 胜利油田利丰稠油技术开发有限公司 | Built-in hydraulic cement injector |
| CN203742551U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Sliding sleeve with flow control function |
| CN204225863U (en) * | 2014-10-28 | 2015-03-25 | 中国石油集团西部钻探工程有限公司 | Well cementation fracturing sliding bush |
| CN204782931U (en) * | 2015-06-19 | 2015-11-18 | 中国石油天然气股份有限公司 | Sliding sleeve fracturing valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012024773A1 (en) * | 2010-08-24 | 2012-03-01 | Sure Tech Tool Services Inc. | Apparatus and method for fracturing a well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420526Y (en) * | 2009-05-20 | 2010-03-10 | 胜利油田利丰稠油技术开发有限公司 | Built-in hydraulic cement injector |
| CN203742551U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Sliding sleeve with flow control function |
| CN204225863U (en) * | 2014-10-28 | 2015-03-25 | 中国石油集团西部钻探工程有限公司 | Well cementation fracturing sliding bush |
| CN204782931U (en) * | 2015-06-19 | 2015-11-18 | 中国石油天然气股份有限公司 | Sliding sleeve fracturing valve |
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