CN109025902A - A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool - Google Patents
A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool Download PDFInfo
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- CN109025902A CN109025902A CN201810962568.XA CN201810962568A CN109025902A CN 109025902 A CN109025902 A CN 109025902A CN 201810962568 A CN201810962568 A CN 201810962568A CN 109025902 A CN109025902 A CN 109025902A
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- ball valve
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- hydraulic
- ball
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 238000003032 molecular docking Methods 0.000 claims abstract description 16
- 239000011435 rock Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000004146 energy storage Methods 0.000 claims description 9
- 230000001737 promoting effect Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000013480 data collection Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000013589 supplement Substances 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
- E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
-
- 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
-
- 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
- E21B34/16—Control means therefor being outside the borehole
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/04—Ball valves
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- 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)
- Earth Drilling (AREA)
Abstract
The present invention relates in oil and gas drilling engineering CORING TECHNOLOGY field, in particular to a kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool.The method steps are as follows: one, after core-drilling, using cable, into drilling rod, assembly is salvaged in tripping at well head, salvage the docking upper body that assembly includes salvaging mechanism and wet joint, salvaging mechanism docks locking with the salvaging docking mechanism being arranged in electro-hydraulic drive system after being sent in place, while the docking upper body of wet joint is docked with the lower body that docks of the wet joint in electro-hydraulic drive system.The present invention, which realizes, not to be influenced by hole deviation factor, it is big to close energy, ball valve is closed and sealing effect is good, data collection is more comprehensive, can know that downhole ball valve and pressure maintaining inner cylinder state, pressure maintaining success rate are high in real time, do not limited to by field application, ball valve assembly structure is simplified, the rock core sample of available major diameter is significant for improving rock core researching value.
Description
Technical field:
The present invention relates in oil and gas drilling engineering CORING TECHNOLOGY field, in particular to a kind of cable type pressure maintaining takes
The electro-hydraulic ball-handling valve method for closing of heart tool.
Background technique:
Coring drilling with keep up pressure technology is mainly used for obtaining the rock core samples such as gas hydrates and coal bed gas rock mine, pressure holding function
It is mostly to be realized based on the closing of ball valve and sealing, the closing effect of ball valve directly determines the success and failure of pressure maintaining.It protects at present
It is mostly mechanical differential mode or hydraulic driving mode that the ball valve of pressure coring tool, which closes mode, and mechanical differential mode is relying on outer cylinder
When assembly self weight applies closing pressure, if hole deviation is larger or the borehole wall is irregular, larger frictional resistance will cause, cause to close pressure
Deficiency, ball valve rotation is not in place, is unable to reach sealing effect.Because its structure is complicated, core diameter can only reach hydraulic driving mode
To 30-50mm, and too small core diameter is easy to cause unfavorable factor to core recovery, and sample researching value can also reduce.
And existing ball valve closes technology and is unable to learn in time whether ball valve closes success, and whether pressure maintaining sealing can only reliably pass through
Instrument, which is played ground just, to be known.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool,
The method achieve not influenced by hole deviation factor, close that energy is big, and ball valve is closed and sealing effect is good, and data collection is more complete
Face can know downhole ball valve and pressure maintaining inner cylinder state in real time, and pressure maintaining success rate is high, is not limited to by field application, simplifies ball
Valve assembly structure, the rock core sample of available major diameter are significant for improving rock core researching value.It overcomes existing
Ball valve closes mode and not in place, the poor sealing performance of ball valve closing easily occurs, and rock core sample diameter is small, and field application limitation is big,
Ball valve can not know the deficiency of closed state in underground.
The technical solution used in the present invention is: a kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool, it should
Method and step is as follows:
One, after core-drilling, using cable, into drilling rod, assembly is salvaged in tripping at well head, and salvaging assembly includes beating
The docking upper body of mechanism and wet joint is fished out, salvaging mechanism is sent to salvaging docking machine rear in place and being arranged in electro-hydraulic drive system
Structure docking locking, while the docking upper body of wet joint is docked with the lower body that docks of the wet joint in electro-hydraulic drive system, at this time
Face control system is by cable to the electro-hydraulic drive system energized of underground and transmission control signal；
Two, electro-hydraulic drive system includes motor, hydraulic cylinder and promotes linkage, and ground control system, which issues, closes ball valve
Control signal after, motor driven hydraulic cylinder one-way movement, hydraulic cylinder drive promoted linkage movement, promoted linkage draw
Dynamic ball valve carries out rotation until ball valve completely closes sealing；
Three, in ball valve closing process, ground control system can carry out electric current, function to electro-hydraulic drive system by cable
Whether rate, the data of hydraulic cylinder travel are collected, and then judge ball valve state and close in place, after ball valve completely closes, on
It mentions winch cable to salvage pressure maintaining inner cylinder to well head, completes coring operation.
The motor of electro-hydraulic drive system is equipped with 4 gears, promotes the steel wire that linkage includes connection liquid cylinder pressure and ball valve
Rope, before electrical power, it is at this time sky that the wirerope for promoting linkage, which is in preset length state, and ball valve fully opens
Shelves；
With the movement of hydraulic cylinder, the wirerope for promoting linkage is gradually straightened, after being straightened completely, wirerope tension
Stroke is a, is at this time 1 grade；
Wirerope continues to pull up, and when ball valve being driven to rotate 45 °, it is at this time 2 grades that wirerope tension stroke, which is b,；
Wirerope continues to pull up, and when ball valve being driven to be rotated by 90 °, wirerope tension stroke is c, at this time ball valve orifice and coring work
Have axially vertical, reaches completely closed state, be at this time 3 grades.
Energy storage measuring system is set on pressure maintaining inner cylinder, above mentions winch cable in step 3 and salvages pressure maintaining inner cylinder to well head
In the process, if pressure leakage occurs in pressure maintaining inner cylinder, energy storage measuring system is supplemented by pressure-compensated valve into pressure maintaining inner cylinder
Pressure makes rock core sample be in shaft bottom true pressure state always, and energy storage measuring system in pressure maintaining inner cylinder temperature and
Pressure is continuously measured and is noted down.
Salvaging mechanism uses recovery hook, salvages docking mechanism and uses fishing spear.
The beneficial effects of the present invention are: the present invention, which realizes, not to be influenced by hole deviation factor, it is big to close energy, ball valve close and
Sealing effect is good, and data collection is more comprehensive, can know downhole ball valve and pressure maintaining inner cylinder state in real time, and pressure maintaining success rate is high,
Do not limited to by field application, simplifies ball valve assembly structure, the rock core sample of available major diameter, for improving rock core research
It is worth significant.
Detailed description of the invention:
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is that wet joint docks schematic diagram.
Fig. 2 is the structural schematic diagram for salvaging assembly.
Ball valve status diagram when being neutral gear that Fig. 3 is motor.
Ball valve status diagram when being 1 gear that Fig. 4 is motor.
Ball valve status diagram when being 2 gear that Fig. 5 is motor.
Ball valve status diagram when being 3 gear that Fig. 6 is motor.
Specific embodiment:
A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool, the method steps are as follows:
One, after core-drilling, using cable 7, into drilling rod, assembly 1 is salvaged in tripping at well head, is salvaged assembly 1 and is wrapped
The docking upper body of recovery hook 9 and wet joint 8 is included, as shown in Figure 2.Recovery hook 9 is sent to catches setting in electro-hydraulic driving system afterwards in place
Fishing spear 10 on system 3, while the docking upper body of wet joint 8 and the wet joint 8 in electro-hydraulic drive system 3 dock lower body pair
It connects, as shown in Figure 1, ground control system is powered by cable 7 to the electro-hydraulic drive system 3 of underground at this time and transmission controls letter
Number；
Two, electro-hydraulic drive system 3 includes motor, hydraulic cylinder and promotes linkage 5, and ground control system, which issues, closes ball
After the control signal of valve 6, motor driven hydraulic cylinder one-way movement, hydraulic cylinder, which drives, promotes the movement of linkage 5, promotes linkage dress
It sets 5 pulling ball valves 6 and carries out rotation until ball valve 6 completely closes sealing；
Three, in 6 closing process of ball valve, ground control system can by cable 7 to electro-hydraulic drive system 3 carry out electric current,
Power, hydraulic cylinder travel data be collected, and then judge 6 state of ball valve and whether close in place, ball valve 6 completely closes
Afterwards, it above mentions winch cable to salvage pressure maintaining inner cylinder 4 to well head, completes coring operation.
The motor of electro-hydraulic drive system 3 is equipped with 4 gears, promotes the steel that linkage 5 includes connection liquid cylinder pressure and ball valve 6
Cord, before electrical power, the wirerope for promoting linkage 5 is in preset length state, and ball valve 6 fully opens, at this time
For neutral gear, as shown in Figure 3；
With the movement of hydraulic cylinder, the wirerope for promoting linkage 5 is gradually straightened, after being straightened completely, wirerope by
Drawing stroke is a, is at this time 1 grade, as shown in Figure 4；This process ball valve 6 does not rotate also, and wirerope stress is minimum, and hydraulic cylinder is substantially not
Acting；
Wirerope continues to pull up, and when ball valve 6 being driven to rotate 45 °, it is at this time 2 grades, such as Fig. 5 institute that wirerope tension stroke, which is b,
Show, this process hydraulic cylinder need to overcome 6 rotational resistance of ball valve to do work；
Wirerope continues to pull up, and when ball valve 6 being driven to be rotated by 90 °, wirerope tension stroke is c, at this time ball valve orifice and coring
Tool is axially vertical, reaches completely closed state, is at this time 3 grades, as shown in fig. 6, this process hydraulic cylinder still needs to that ball valve 6 is overcome to revolve
Turn resistance acting.
Energy storage measuring system 2 is set on pressure maintaining inner cylinder 4, winch cable is above mentioned in step 3 and salvages pressure maintaining inner cylinder 4 extremely
During well head, if pressure leakage occurs in pressure maintaining inner cylinder 4, energy storage measuring system 2 passes through pressure-compensated valve to pressure maintaining inner cylinder 4
Middle supplement pressure makes rock core sample be in shaft bottom true pressure state always, and energy storage measuring system 2 is in pressure maintaining inner cylinder 4
Temperature and pressure continuously measured and noted down, by tiny Long-term change trend can more detailed understanding natural gas be hydrated
The volatilization decomposable process of object and other rock core samples in trip-out process.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (4)
1. a kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool, it is characterised in that: the method steps are as follows:
One, after core-drilling, using cable (7), into drilling rod, assembly (1) is salvaged in tripping at well head, is salvaged assembly (1)
Docking upper body including salvaging mechanism and wet joint (8) after salvaging mechanism is sent in place and is arranged on electro-hydraulic drive system (3)
Salvaging docking mechanism dock locking, while the wet joint (8) on the docking upper body of wet joint (8) and electro-hydraulic drive system (3)
Docking lower body docking, at this time ground control system by cable (7) to underground electro-hydraulic drive system (3) be powered and transmission control
Signal processed；
Two, electro-hydraulic drive system (3) includes motor, hydraulic cylinder and promotes linkage (5), and ground control system, which issues, closes ball
After the control signal of valve (6), motor driven hydraulic cylinder one-way movement, hydraulic cylinder, which drives, promotes linkage (5) movement, promotes connection
Dynamic device (5) ball valve (6) is pulled to carry out rotation until ball valve (6) completely close sealing；
Three, in ball valve (6) closing process, ground control system can carry out electricity to electro-hydraulic drive system (3) by cable (7)
Stream, power, hydraulic cylinder travel data be collected, and then judge ball valve (6) state and whether close in place, ball valve (6) is complete
After contract fully, above mentions winch cable and salvage pressure maintaining inner cylinder (4) to well head, complete coring operation.
2. the electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool described in accordance with the claim 1, it is characterised in that: described
The motor of electro-hydraulic drive system (3) is equipped with 4 gears, promotes the steel wire that linkage (5) include connection liquid cylinder pressure and ball valve (6)
Rope, before electrical power, the wirerope for promoting linkage (5) is in preset length state, and ball valve (6) fully opens, this
When be neutral gear；
With the movement of hydraulic cylinder, the wirerope for promoting linkage (5) is gradually straightened, after being straightened completely, wirerope tension
Stroke is a, is at this time 1 grade；
Wirerope continues to pull up, and when ball valve (6) being driven to rotate 45 °, it is at this time 2 grades that wirerope tension stroke, which is b,；
Wirerope continues to pull up, and when ball valve (6) being driven to be rotated by 90 °, wirerope tension stroke is c, at this time ball valve orifice and coring work
Have axially vertical, reaches completely closed state, be at this time 3 grades.
3. the electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool described in accordance with the claim 1, it is characterised in that: described
Energy storage measuring system (2) are set on pressure maintaining inner cylinder (4), winch cable is above mentioned in step 3 and salvages pressure maintaining inner cylinder (4) to well
During mouthful, if pressure leakage occurs in pressure maintaining inner cylinder (4), energy storage measuring system (2) is by pressure-compensated valve into pressure maintaining
Pressure is supplemented in cylinder (4), so that rock core sample is in shaft bottom true pressure state always, and energy storage measuring system (2) is to pressure maintaining
Temperature and pressure in inner cylinder (4) is continuously measured and is noted down.
4. the electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool described in accordance with the claim 1, it is characterised in that: described
Salvaging mechanism uses recovery hook (9), salvages docking mechanism and uses fishing spear (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962568.XA CN109025902A (en) | 2018-08-22 | 2018-08-22 | A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962568.XA CN109025902A (en) | 2018-08-22 | 2018-08-22 | A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool |
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| Publication Number | Publication Date |
|---|---|
| CN109025902A true CN109025902A (en) | 2018-12-18 |
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|---|---|---|---|
| CN201810962568.XA Pending CN109025902A (en) | 2018-08-22 | 2018-08-22 | A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool |
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| CN (1) | CN109025902A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706283A (en) * | 2020-06-17 | 2020-09-25 | 中国地质科学院勘探技术研究所 | Core tube one-way valve mechanism of rope coring drilling tool |
| CN113622849A (en) * | 2021-10-14 | 2021-11-09 | 陕西太合智能钻探有限公司 | Closed core drilling tool |
| CN114837130A (en) * | 2022-05-26 | 2022-08-02 | 阜阳市颍泉水利建筑有限公司 | Ecological river channel slope protection structure and construction method thereof |
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| CN101235710A (en) * | 2008-02-28 | 2008-08-06 | 中国科学院武汉岩土力学研究所 | Impact type double tube double-motion coring device and its method |
| CN202266217U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Heat-preserving and pressure-maintaining coring tool |
| CN103969082A (en) * | 2014-04-28 | 2014-08-06 | 浙江大学 | Sampler for contaminated undisturbed silt sample |
| CN203881566U (en) * | 2014-04-28 | 2014-10-15 | 浙江大学 | Sampler for taking undisturbed sample of polluted silt |
| CN107727432A (en) * | 2017-11-25 | 2018-02-23 | 吉林大学 | Oscillatory type ocean hydrate pressure keeping sampler |
| CN207673305U (en) * | 2017-11-30 | 2018-07-31 | 中国地质科学院勘探技术研究所 | A kind of coal bed gas seismic exploration original position coring drilling with keep up pressure drilling tool |
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2018
- 2018-08-22 CN CN201810962568.XA patent/CN109025902A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1693871A (en) * | 2004-09-09 | 2005-11-09 | 中国海洋大学 | Bottom sediment gas-retaining sampler |
| CN2888435Y (en) * | 2005-12-09 | 2007-04-11 | 中国海洋石油总公司 | Dead weight driven in-situ gas-retaining sampler for bottom sediment |
| CN101235710A (en) * | 2008-02-28 | 2008-08-06 | 中国科学院武汉岩土力学研究所 | Impact type double tube double-motion coring device and its method |
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| CN107727432A (en) * | 2017-11-25 | 2018-02-23 | 吉林大学 | Oscillatory type ocean hydrate pressure keeping sampler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706283A (en) * | 2020-06-17 | 2020-09-25 | 中国地质科学院勘探技术研究所 | Core tube one-way valve mechanism of rope coring drilling tool |
| CN113622849A (en) * | 2021-10-14 | 2021-11-09 | 陕西太合智能钻探有限公司 | Closed core drilling tool |
| CN114837130A (en) * | 2022-05-26 | 2022-08-02 | 阜阳市颍泉水利建筑有限公司 | Ecological river channel slope protection structure and construction method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200927 Address after: 100120 Beijing Xicheng District six laying Kang Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Applicant before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |