CN107905760A - From anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break and control method - Google Patents
From anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break and control method Download PDFInfo
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- CN107905760A CN107905760A CN201711077191.1A CN201711077191A CN107905760A CN 107905760 A CN107905760 A CN 107905760A CN 201711077191 A CN201711077191 A CN 201711077191A CN 107905760 A CN107905760 A CN 107905760A
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- Prior art keywords
- pressure
- sealing
- anchoring
- unit
- pressure break
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 238000007789 sealing Methods 0.000 title claims abstract description 100
- 238000004873 anchoring Methods 0.000 title claims abstract description 67
- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 38
- 239000003245 coal Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 41
- 239000010959 steel Substances 0.000 claims description 41
- 230000009471 action Effects 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 3
- 238000005065 mining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- -1 recovery Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
The invention discloses a kind of integrated apparatus and control method from anchoring, self-sealing, high pressure water injection and pressure break, device includes anchoring unit, sealing of hole unit and pressure break unit, the anchoring unit is installed on drilling rod, and drilling rod is anchored in the wall of a borehole by for high pressure water injection when；The sealing of hole unit sets the front side of anchoring unit, and for drilling and sealing, the high-pressure rubber pipe in sealing of hole unit is subject to the effect of high pressure water to expand to realize sealing of hole；The pressure break unit sets the front side of sealing of hole unit, implements pressure break to the coal seam of drill hole after being injected for high pressure water.The present invention realizes hydraulic fracturing, sealing of hole, anchoring integration, pressure leakage risk caused by reduction sealing of hole is not tight, while reduces the time for replacing drilling rod, it can reduce for 1/3rd pressure break time, and easy to recycling, it is easy to use, structure is novel, has a good application prospect.
Description
Technical field
The present invention relates to a kind of integrated apparatus and control method from anchoring, self-sealing, high pressure water injection and pressure break, belong to
Gas pumping technical field.
Background technology
With the increase of coal mining depth, many collieries all suffer from high gassy and low permeability coal seam gas and are difficult to pre- pumping
The problem of, which seriously restricts the safety in production in colliery, and underground coal mine solves the Gas during pit mining at present
It is exactly high pressure water injection or hydraulic fracturing with one of most important means of protrusion.However, carry out high pressure water injection or water in underground coal mine
Force during splitting, the current sealing of hole mode in China mainly uses cement mortar permanent type sealing of hole and the self-styled hole packer of capsule-type
Sealing of hole.Although cement mortar sealing of hole, since cement has the trend of contraction after solidification, is drilling with certain intensity
Wall, which goes out to produce crack, causes gas leakage, drills particularly with small inclination, and inevitable produced in drilling upper wall of the contraction of cement is split greatly
Line, in addition sealing of hole is costly.The frictional resistance of the self-styled hole packer sealing of hole of capsule-type hole packer sometimes is small, it sometimes appear that sealing of hole
Device slides, or even skids off drilling initiation accident.
By above-mentioned discussion, under existing well in sealing of hole mode, cement mortar sealing of hole cost is higher, and sealing quality can go out sometimes
Existing problem；In the self-styled water conservancy pressure break of capsule-type and high pressure water injection technology, there is different for sealing of hole, pressure break and the method for water filling
Defect, without the anchoring of hole sealing device.How to overcome the problem of above-mentioned, improve the extracting result of drilling, extend the use of drilling
Time, is to be currently needed for solving the problems, such as.
The content of the invention
The invention aims to overcome the shortcomings that existing gas drilling extraction gas permeability of coal seam is poor, extraction amount is small, bore
The problems such as anchoring in hole, sealing of hole, long fracturing process existing time.Anchoring, self-sealing, the high pressure water injection pressure break certainly of the present invention
Integrated apparatus and control method, solve existing technical process when implementing anchoring, sealing, pressure break during hole pumping and mining
It is more, expend the problem of time is long and sealing effect is poor, recycling is difficult, it is integrated to realize hydraulic fracturing, sealing of hole, anchoring, is easy to
Recycling, easy to use, structure is novel, has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, including anchoring unit, sealing of hole unit and pressure break list certainly
Member,
The anchoring unit is installed on drilling rod, and drilling rod is anchored in the wall of a borehole by for high pressure water injection or pressure break when；
The sealing of hole unit sets the front side of anchoring unit, for drilling and sealing, the high-pressure rubber pipe in sealing of hole unit to be subject to height
Sealing of hole is realized in the effect expansion of pressure water；
The pressure break unit sets the front side of sealing of hole unit, implements pressure break to the coal seam of drill hole after being injected for high pressure water.
Foregoing anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, the anchoring unit, including stacks certainly
Terminal, hydraulic cylinder cone valve, support pawl, pawl restoring spring, the rearward end of the stacks terminal are fixed by socket on drilling rod,
The hydraulic cylinder cone valve is arranged on the inner wall in stacks terminal front end portion, the support pawl be arranged on support pawl outer wall,
Between stacks terminal inner wall, the pawl restoring spring is arranged between support pawl, stacks terminal inner wall, the support
The movable end of pawl can be extended out stacks terminal, and front end and the sealing of hole unit of the stacks terminal are connected.
Foregoing anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, the sealing of hole unit, including high-pressure glue certainly
Pipe, water blockoff steel ball, steel ball resetting spring, the rearward end of the high-pressure rubber pipe with the front end of stacks terminal with being connected, institute
The front end that water blockoff steel ball is arranged on high-pressure rubber pipe is stated, the water blockoff steel ball is connected by steel ball resetting spring with pressure break unit
Connect.
Foregoing anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, the pressure break unit, including pressure tune certainly
Bolt and pressure break fill port are saved, the pressure regulating bolt is used to prop up steel ball resetting spring, and the pressure break fill port is set
Put in the outside of steel ball resetting spring, under control of the water blockoff steel ball in high pressure water, when being moved to the front side of pressure break fill port,
Pressure break unit implements pressure break by pressure break fill port water filling to the coal seam of drill hole.
Foregoing anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break certainly, the hydraulic cylinder cone valve are used to connect height
Water is pressed into, high pressure water is entered in high-pressure rubber pipe by hydraulic cylinder cone valve.
Foregoing can prolong from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, the movable end of the support pawl
Stacks terminal is stretched out, hydraulic cylinder cone valve promotes radial direction of the movable end of support pawl along drilling rod under the action of high pressure water
It is protruding and be stuck on the wall of a borehole, realize anchoring.
It is a kind of from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, comprise the following steps,
Step（A）, high pressure water by hydraulic cylinder cone valve enter anchoring unit in, hydraulic cylinder cone valve promotes under the action of high pressure water
The radial direction of movable end along the drilling rod of support pawl on the outside of it is protruding and is stuck on the wall of a borehole, and the pressure of high pressure water
The outward thrust that bigger hydraulic cylinder cone valve produces is bigger, and support pawl realizes the effect of anchoring drilling rod；
Step（B）, high pressure water enters sealing of hole unit after anchoring unit, and high pressure water enters high-pressure rubber pipe, makes its expansion to boring
Hole carries out sealing of hole, by adjusting the pressure regulating bolt of pressure break unit, ensures that the sealing of hole pressure in high-pressure rubber pipe is more than high pressure water
Pressure 2-8Mpa, ensures effective closure to drilling；
Step（C）, high pressure water continues to provide pressure, during the elastic force provided water blockoff steel ball more than steel ball resetting spring, water blockoff steel
When ball is moved to the front side of pressure break fill port, make the outside water filling of pressure break fill port, pressure break unit passes through pressure break fill port
Water filling, implements pressure break, there is provided pressure carries out high pressure water injection or pressure between 30-40Mpa, and to coal seam to the coal seam of drill hole
Split；
Step（D）, after completing gas pumping, stop the injection of high pressure water, recovery, water blockoff steel ball are in steel ball after high-pressure rubber pipe release
Initial position is returned under the pressure of resetting spring, supports pawl to be withdrawn under the action of pawl restoring spring, can be reused.
It is foregoing from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, step（B）, ensure high
Sealing of hole pressure in moulding pipe is more than high pressure water injection or frac pressure pressure 2-8Mpa.
It is foregoing from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, step（C）, pressure break list
Member implements pressure break, there is provided pressure 35Mpa by pressure break fill port water filling to the coal seam of drill hole.
The beneficial effects of the invention are as follows：Anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break and the control certainly of the present invention
Method processed, solve when implementing anchoring, sealing, pressure break during hole pumping and mining existing technical process is more, expend time length and
The problem of sealing effect is poor, recycling is difficult, realizes hydraulic fracturing, sealing of hole, anchoring integration, easy to use easy to recycle, knot
Structure is novel, has a good application prospect.
Brief description of the drawings
Fig. 1 be the present invention from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus structure diagram；
Fig. 2 is the structure diagram of the anchoring unit structure of the present invention；
Fig. 3 is the sealing of hole unit of the present invention, the structure diagram of sealing of hole unit.
The implication marked in attached drawing is as follows：
1：Stacks terminal；2：Hydraulic cylinder cone valve；3：Support pawl；4：Pawl restoring spring；5：Drilling rod；6：High-pressure rubber pipe；7：
Water blockoff steel ball；8：Adjusting bolt；9：Pressure break fill port；10：Steel ball resetting spring.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.Following embodiments are only used for clearly
Illustrate technical scheme, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
Anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, including anchoring unit, sealing of hole unit certainly of the present invention
With pressure break unit,
The anchoring unit is installed on drilling rod, and drilling rod is anchored in the wall of a borehole by for high pressure water injection or pressure break when；
The sealing of hole unit sets the front side of anchoring unit, for drilling and sealing, the high-pressure rubber pipe in sealing of hole unit to be subject to height
Sealing of hole is realized in the effect expansion of pressure water；
The pressure break unit sets the front side of sealing of hole unit, implements pressure break to the coal seam of drill hole after being injected for high pressure water.
The present invention from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, concrete structure schematic diagram, as Fig. 1-
Shown in Fig. 3,
The anchoring unit, including stacks terminal 1, hydraulic cylinder cone valve 2, support pawl 3, pawl restoring spring 4, it is described to connect brill
The rearward end of rod end 1 is fixed by socket on drilling rod 5, and the hydraulic cylinder cone valve 2 is arranged on the interior of 1 front end of stacks terminal
Wall, the support pawl 3 are arranged between the outer wall of support pawl 3,1 inner wall of stacks terminal, and the pawl restoring spring 4 is set
Put between support pawl 3,1 inner wall of stacks terminal, the movable end of the support pawl 3 can be extended out stacks terminal 1, institute
The front end and sealing of hole unit for stating stacks terminal 1 are connected.
The sealing of hole unit, including high-pressure rubber pipe 6, water blockoff steel ball 7, steel ball resetting spring 10, after the high-pressure rubber pipe 6
For the front end of end and stacks terminal 1 with being connected, the water blockoff steel ball 7 is arranged on the front end of high-pressure rubber pipe 6, described stifled
Water steel ball 7 is connected by steel ball resetting spring 10 with pressure break unit.
The pressure break unit, including pressure regulating bolt 8 and pressure break fill port 9, the pressure regulating bolt 8 are used to support
Firmly steel ball resetting spring 10, the pressure break fill port 9 are arranged on the outside of steel ball resetting spring 10, in water blockoff steel ball 7 in height
Under the control for pressing water, when being moved to the front side of pressure break fill port 9, pressure break unit is by 9 water filling of pressure break fill port, to drilling
Implement pressure break in the coal seam at place.
The hydraulic cylinder cone valve 2 is used to connect high-pressure water inlet, and high pressure water enters high-pressure rubber pipe 6 by hydraulic cylinder cone valve 2
It is interior.
The movable end of the support pawl 3 can be extended out stacks terminal 1, and hydraulic cylinder cone valve 2 is under the action of high pressure water
Promote the radial direction of movable end along the drilling rod 5 of support pawl 3 protruding and be stuck on the wall of a borehole, realize anchoring.
The present invention from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, including following step
Suddenly,
Step（A）, high pressure water is by the way that in the entrance anchoring unit of hydraulic cylinder cone valve 2, hydraulic cylinder cone valve 2 pushes away under the action of high pressure water
Move that the radial direction of movable end along the drilling rod 5 of the support pawl 3 on the outside of it is protruding and be stuck on the wall of a borehole, and high pressure water
The outward thrust that the bigger hydraulic cylinder cone valve 2 of pressure produces is bigger, and support pawl 3 realizes the effect of anchoring drilling rod 5；
Step（B）, high pressure water enters sealing of hole unit after anchoring unit, and high pressure water enters high-pressure rubber pipe 6, makes its expansion to boring
Hole carries out sealing of hole, by adjusting the pressure regulating bolt 8 of pressure break unit, ensures that the sealing of hole pressure in high-pressure rubber pipe 6 is more than high pressure
Water pressure 2-8Mpa, preferably 6 Mpa, ensure effective closure to drilling；
Step（C）, high pressure water continues to provide pressure, during the elastic force provided water blockoff steel ball 7 more than steel ball resetting spring 10, water blockoff
When steel ball 7 is moved to the front side of pressure break fill port 9, make the 9 outside water filling of pressure break fill port, pressure break unit passes through pressure break water filling
9 water filling of port, implements pressure break, there is provided pressure is between 30-40Mpa, preferably 35 Mpa, and carries out gas to the coal seam of drill hole
Extraction；
Step（D）, after completing gas pumping, stop the injection of high pressure water, recovery, water blockoff steel ball 7 are in steel after 6 release of high-pressure rubber pipe
Initial position is returned under the pressure of ball resetting spring 10, supports pawl 3 to be withdrawn under the action of pawl restoring spring 4, can be again
Secondary utilization, realizes hydraulic fracturing, sealing of hole, anchoring integration, and easy to recycling.
In conclusion anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break and the control method certainly of the present invention, solution
Existing colliery self-sealing hole packer determined sometimes due to sealing of hole frictional resistance is inadequate, has caused hole packer to slide sealing of hole not to hole hole
Jail and the problem of leakproofness is bad, also solves existing technical process when implementing anchoring, sealing, pressure break during hole pumping and mining
It is more, expend the problem of time is long and sealing effect is poor, recycling is difficult, it is integrated to realize hydraulic fracturing, sealing of hole, anchoring, is easy to
Recycling, easy to use, structure is novel, has a good application prospect.
Basic principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the original of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (9)
- It is 1. a kind of from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, it is characterised in that：Including anchoring unit, sealing of hole Unit and pressure break unit,The anchoring unit is installed on drilling rod, during for high pressure water injection or pressure break after drilling rod is anchored in the wall of a borehole；The sealing of hole unit sets the front side of anchoring unit, for drilling and sealing, the high-pressure rubber pipe in sealing of hole unit to be subject to height Sealing of hole is realized in the effect expansion of pressure water；The pressure break unit sets the front side of sealing of hole unit, implements pressure break to the coal seam of drill hole after being injected for high pressure water.
- It is 2. according to claim 1 from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, it is characterised in that：Institute State anchoring unit, including stacks terminal（1）, hydraulic cylinder cone valve（2）, support pawl（3）, pawl restoring spring（4）, it is described to connect Drilling rod terminal（1）Rearward end be fixed by socket in drilling rod（5）On, the hydraulic cylinder cone valve（2）It is arranged on stacks terminal（1）Before The inner wall of end, the support pawl（3）It is arranged on support pawl（3）Outer wall, stacks terminal（1）It is described between inner wall Pawl restoring spring（4）It is arranged on support pawl（3）, stacks terminal（1）Between inner wall, the support pawl（3）Activity End can be extended out stacks terminal（1）, the stacks terminal（1）Front end be connected with sealing of hole unit.
- It is 3. according to claim 2 from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, it is characterised in that：Institute State sealing of hole unit, including high-pressure rubber pipe（6）, water blockoff steel ball（7）, steel ball resetting spring（10）, the high-pressure rubber pipe（6）Rear end Portion and stacks terminal（1）Front end with being connected, the water blockoff steel ball（7）It is arranged on high-pressure rubber pipe（6）Front end, institute State water blockoff steel ball（7）Pass through steel ball resetting spring（10）It is connected with pressure break unit.
- It is 4. according to claim 3 from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, it is characterised in that：Institute State pressure break unit, including pressure regulating bolt（8）With pressure break fill port（9）, the pressure regulating bolt（8）For propping up steel Ball resetting spring（10）, the pressure break fill port（9）It is arranged on steel ball resetting spring（10）Outside, in water blockoff steel ball（7） Under the control of high pressure water, pressure break fill port is moved to（9）Front side when, pressure break unit passes through pressure break fill port（9）Note Water, implements pressure break to the coal seam of drill hole.
- It is 5. according to claim 3 from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, it is characterised in that：Institute State hydraulic cylinder cone valve（2）For connecting high-pressure water inlet, high pressure water passes through hydraulic cylinder cone valve（2）Enter high-pressure rubber pipe（6）It is interior.
- It is 6. according to claim 2 from anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break, it is characterised in that：Institute State support pawl（3）Movable end can be extended out stacks terminal（1）, hydraulic cylinder cone valve（2）Promoted under the action of high pressure water Support pawl（3）Movable end along drilling rod（5）Radial direction it is protruding and be stuck on the wall of a borehole, realize anchoring.
- 7. it is a kind of from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, it is characterised in that：Including with Lower step,Step（A）, high pressure water passes through hydraulic cylinder cone valve（2）Into in anchoring unit, hydraulic cylinder cone valve（2）In the effect of high pressure water The lower support pawl promoted on the outside of it（3）Movable end along drilling rod（5）Radial direction it is protruding and be stuck on the wall of a borehole, and The bigger hydraulic cylinder cone valve of pressure of high pressure water（2）The outward thrust of generation is bigger, supports pawl（3）Realize anchoring drilling rod（5）'s Effect；Step（B）, high pressure water enters sealing of hole unit after anchoring unit, and high pressure water enters high-pressure rubber pipe（6）, make its expansion pair Drilling carries out sealing of hole, by the pressure regulating bolt for adjusting pressure break unit（8）, ensure high-pressure rubber pipe（6）Interior sealing of hole pressure is big In high-pressure water pressure 2-8Mpa, ensure effective closure to drilling；Step（C）, high pressure water continues to provide pressure, more than steel ball resetting spring（10）To water blockoff steel ball（7）During the elastic force of offer, Water blockoff steel ball（7）It is moved to pressure break fill port（9）Front side when, make pressure break fill port（9）Outside water filling, pressure break unit lead to Cross pressure break fill port（9）Water filling, implements pressure break, there is provided pressure is between 30-40Mpa, and progress watt to the coal seam of drill hole This extraction；Step（D）, after completing gas pumping, stop the injection of high pressure water, high-pressure rubber pipe（6）Restored after release, water blockoff steel ball（7） In steel ball resetting spring（10）Pressure under be returned to initial position, support pawl（3）In pawl restoring spring（4）Under the action of Withdraw, can reuse.
- 8. it is according to claim 7 from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, its It is characterized in that：Step（B）, ensure high-pressure rubber pipe（6）Interior sealing of hole pressure is more than high-pressure water pressure 6Mpa.
- 9. it is according to claim 7 from anchoring, self-sealing, high pressure water injection pressure break integrated apparatus control method, its It is characterized in that：Step（C）, pressure break unit passes through pressure break fill port（9）Water filling, implements pressure break to the coal seam of drill hole, there is provided Pressure is 35Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077191.1A CN107905760B (en) | 2017-11-06 | 2017-11-06 | Self-anchoring, self-sealing and high-pressure water injection fracturing integrated device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077191.1A CN107905760B (en) | 2017-11-06 | 2017-11-06 | Self-anchoring, self-sealing and high-pressure water injection fracturing integrated device and control method |
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| CN107905760A true CN107905760A (en) | 2018-04-13 |
| CN107905760B CN107905760B (en) | 2023-11-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632625A (en) * | 2018-10-29 | 2019-04-16 | 中国矿业大学 | A kind of deformation coal original position coal bed gas horizontal well unloads compression testing device and test method |
| CN111425176A (en) * | 2020-04-02 | 2020-07-17 | 西安科技大学 | Coal and rock stratum high-pressure hole sealing and pressure maintaining and releasing device |
| CN111425175A (en) * | 2020-04-02 | 2020-07-17 | 西安科技大学 | Coal rock stratum high-pressure hole sealing pressure relief protection method |
| CN111998747A (en) * | 2020-09-03 | 2020-11-27 | 鄂托克前旗长城六号矿业有限公司 | Quick hole sealing device and method for underground blast hole |
| CN112145118A (en) * | 2020-10-19 | 2020-12-29 | 华北科技学院 | Double-end water plugging device integrating drilling peeping function and method |
| CN112412388A (en) * | 2020-11-23 | 2021-02-26 | 中国矿业大学 | Reusable gas drilling two-plugging one-injection integrated setting packer |
| CN112832709A (en) * | 2020-12-31 | 2021-05-25 | 河北邦田矿山安全设备有限公司 | Hole packer |
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