CN105863571A - Shale gas horizontal well operation device and method based on pressure oscillation - Google Patents
Shale gas horizontal well operation device and method based on pressure oscillation Download PDFInfo
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- CN105863571A CN105863571A CN201610298193.2A CN201610298193A CN105863571A CN 105863571 A CN105863571 A CN 105863571A CN 201610298193 A CN201610298193 A CN 201610298193A CN 105863571 A CN105863571 A CN 105863571A
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- 230000010355 oscillation Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000003534 oscillatory effect Effects 0.000 claims description 35
- 238000010276 construction Methods 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 239000004576 sand Substances 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 239000011707 mineral Substances 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000638 stimulation 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/003—Vibrating earth formations
-
- 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
-
- 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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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)
- Reciprocating Pumps (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a shale gas horizontal well operation device and method based on pressure oscillation. A pump truck and an instrument truck are connected to an oil extraction tree through high-pressure pipelines respectively. The pump truck and the instrument truck are connected through a data line. A fracturing blender truck and an acid tank truck are connected to the pump truck through high-pressure pipelines respectively. The pump truck is connected with an oscillation system through a high-pressure pipeline. The oscillation system comprises a signal generator, a servo mechanism and a plunder pump. The oscillation system is connected with a pressure sensor through a data line. The pressure sensor is connected to the oil extraction tree through a high-pressure pipeline. According to the shale gas horizontal well operation device and method, a target reservoir stratum can produce multiple fan framework-shaped main cracks, and extending forked small cracks are produced on the main cracks, the instant extending length of the small main cracks can be reduced, and therefore the cracks are prevented from penetrating through a water layer in a pressing mode.
Description
Technical field
The invention belongs to natural gas extraction apparatus for work and method and technology field, relate to one and shake based on pressure
The shale gas horizontal well apparatus for work swung and method.
Background technology
Shale gas refers to that main body is composed be stored in institute in shale and shale reservoir with absorption, free or dissolution mechanism
Natural gas in burning into sand matter, silty stratum.It is with conventional gas physicochemical properties complete
Sample, is to be filled in shale crack, and aperture is the natural gas in the fine pore of several nanometer and aspect.By
In the usual reservoir of shale gas in tight stratum, exploitation difficulty is big, and cost is high；Thus typically require and take
Well stimulation.In the recovery process to shale gas, generally use the means of pressure break, improve oozing of stratum
Rate thoroughly, makes the shale gas in reservoir be easier to flow into pit shaft.
But, existing shale gas horizontal well operational method is usually present weak point: due to stratum three-dimensional
The relative size change of principal stress is difficult to predict, prior art builds the pressure with high pressure and the technique of huge discharge is carried out
During stratum operation, single pressure effect makes formation fracture unidirectionally extended and easily presses to wear Water table, mainly
Bifurcated gap development length on crack is little, returns again major fracture, thus reduces the exploitation effect of shale gas
Rate.Therefore prior art is needed badly and a kind of can change formation fracture shape and to improve shale gas recovery ratio
Apparatus for work and method.
Summary of the invention
It is an object of the invention to provide a kind of shale gas horizontal well apparatus for work based on pressure oscillation, solve
The problem that the crack unidirectionally extended shale gas recovery ratio caused that existing shale gas horizontal well exists is low.
It is a further object to provide a kind of operation using said apparatus to carry out shale gas collection
Method.
The technical solution adopted in the present invention is, a kind of shale gas horizontal well operation based on pressure oscillation fills
Put, including being connected to organize the fracturing blender truck of liquid tank, acid tank truck, pump truck and measuring truck, pass through high pressure line more
Respectively described pump truck and described measuring truck are connected on production tree, by described pump truck and described measuring truck it
Between connected by data wire, fracturing blender truck and acid tank truck are connected to described pump truck by high pressure line respectively
On, described measuring truck is provided with display pressure break Dynamic Construction curve and the display of pump truck output curve,
Described pump truck connects oscillatory system also by high pressure line, between described pump truck and described oscillatory system
Be additionally provided with hydraulic valve on high pressure line, described oscillatory system include signal generator, servo control mechanism and
Plunger displacement pump, described oscillatory system connects pressure transducer by data wire, and pressure transducer passes through high-voltage tube
Line is connected on described production tree, by described pressure transducer feed back well head pressure signal, with start and
Run described signal generator, and then driven described plunger displacement pump to produce oscillation pressure by described servo control mechanism.
Optionally, described oscillatory system also includes the high pressure sealing valve being connected on described plunger displacement pump.
Another technical scheme of the present invention is, utilizes above-mentioned shale air water based on pressure oscillation
Horizontal well apparatus for work carries out the method for shale gas collection, specifically comprises the following steps that
Step one, according to the seismic data of shale gas target reservoir and the analysis processing result of geologic information,
Determine rock forming mineral kind and the content thereof of net horizontal section in described target reservoir；
Step 2, according to the rock forming mineral kind of described net horizontal section and content thereof, determine and wash for acidifying
Type sour in the flushing fluid of well and content, start pump truck, and by acid tank truck, target reservoir carried out acid
Change clean-out service；
Step 3, carry out pressing crack construction preparation, including the circulation carried out in pressing crack construction, pressure testing and
Operation is squeezed in examination；
Step 4, beginning pressing crack construction work, opened oscillatory system simultaneously, and supervised by pressure transducer
Surveying wellhead back pressure, oscillatory system, according to receiving the well head pressure signal that pressure sensor feeds back is come, opens
Moving and run signal generator, the signal that signal generator produces passes to the servo in oscillatory system
Structure, servo control mechanism controls plunger displacement pump according to the signal received, and makes plunger displacement pump produce oscillation pressure, Jin Ertong
Cross pump truck and feed back to downhole fluid；
Step 5, monitoring wellhead back pressure uphill process in, when back pressure is in 0～40Mpa, often go up
Rise 5Mpa and run an oscillatory system, after back pressure rises to 40Mpa, often rise 2Mpa and run
Oscillatory system, and the pressure break Dynamic Construction curve of display on measuring instrument car, when pressure break Dynamic Construction
When there is obvious change of shape in curve, continuous service oscillatory system 10～shutdown system after 20 minutes, and
Carry out adding sand operation after on measuring truck, the discharge curve of display is stable, add in sand operation load fluid used by
Fracturing fluid and additive in sand proppant and many group liquid tank mix by a certain percentage；
Step 6, carry out the displacement fluid operation of pressing crack construction, and close all terminal valves of well head, root
According to fracturing fluid break time t0Determine closed-in time t, it is desirable to t=1.2t0, staff with clear water to pump truck
And high pressure line is carried out and bleeds off pressure, winding shaft lower tubular column also tidies up job site, and pressing crack construction works
Complete and safe escape well site.
The feature of the present invention also resides in,
The mineral species of rock include following at least one: sandstone, limestone, dolomite.
The type of acid solution include following at least one: hydrochloric acid, Fluohydric acid..
The invention has the beneficial effects as follows:
1, use the design of exclusive oscillatory system, in shale gas horizontal well operation, target can be made
Reservoir produces a plurality of ribs of the fan shape major fracture, and produces the bifurcated gap extending length on major fracture, can increase
Oil more than 5-25%.
2, oscillator signal produced by signal generator, in shale gas horizontal well operation, can slow down
The single pressure peak action intensity to stratum, reduce major fracture under single pressure peak moment prolong
Elongation, thus avoid pressure to wear water layer.
3, the signal feedback mechanism of rational pressure oscillation opportunity Erecting and improving is selected, by monitoring well
Mouthful back pressure change and according to the change of shape of pressure break Dynamic Construction curve and the state of pump truck output curve
The carrying out of monitoring construction, thus multi-angle ensures the stable construction of shale gas horizontal well.
4, radiationless, safety and environmental protection, it is possible to full-automatic operation continuously, reduce maintenance cost, effect
Rate is high, saves maintenance cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of shale gas horizontal well apparatus for work based on pressure oscillation of the present invention
Figure.
In figure, 1. liquid tank, 2. fracturing blender truck, 3. acid tank truck, 4. signal generator, 5. oscillatory system, 6.
Servo control mechanism, 7. plunger displacement pump, 8. hydraulic valve, 9. pressure transducer, 10. production tree, 11. pump trucks, 12.
Measuring truck.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the application, below in conjunction with
Accompanying drawing in the embodiment of the present application, carries out clear, complete retouching to the technical scheme in the embodiment of the present application
State, it is clear that described embodiment is only some embodiments of the present application rather than whole enforcement
Example.Based on the embodiment in the application, those of ordinary skill in the art are not before making creative work
Put the every other embodiment obtained, all should belong to the scope of the application protection.
As it is shown in figure 1, a kind of shale gas horizontal well apparatus for work based on pressure oscillation of the present invention, including
The fracturing fluid not only can being provided separately in liquid tank 1 with carry out pressing crack construction, but also can provide sand proppant and
The load fluid that the fracturing fluids organized in liquid tank 1 and various additive mix by a certain percentage is to carry out adding sand
The fracturing blender truck 2 of operation, it is possible to produce high pressure and huge discharge and inject the pump truck 11 of liquid to stratum, be used for remembering
The measuring truck 12 of various parameters in record construction, wherein by high pressure line respectively by described measuring truck 12 He
Described pump truck 11 is connected on production tree 10, will carry out between described pump truck 11 and described measuring truck 12
Connected by data wire, described measuring truck 10 is provided with display pressure break Dynamic Construction curve and pump truck row
The display of discharge curve, described pump truck 11 connects acid tank truck 3, fracturing blender truck 2 by high pressure line respectively
With oscillatory system 5, the high pressure line between described pump truck 11 and described oscillatory system 5 is additionally provided with
Hydraulic valve 8, described oscillatory system 5 includes signal generator 4, servo control mechanism 6 and plunger displacement pump 7, institute
Stating production tree 10 and connect pressure transducer 9 also by high pressure line, described oscillatory system 5 passes through data wire
Connect described pressure transducer 9.Further, oscillatory system 5 also includes for that provide protection and post
The high pressure sealing valve that plug pump connects, in order to avoid too high back pressure damages oscillatory system.
During practice of construction, oscillatory system 5 is fed back via data wire according to receiving pressure transducer 9
The well head pressure signal returned, starts and run signal generator 4, the letter that signal generator 4 produces
Number passing to servo control mechanism 6 in oscillatory system 5, servo control mechanism 6 controls oscillation system according to the signal received
Plunger displacement pump 7 in system 5, makes plunger displacement pump 7 produce oscillation pressure and carries out the construction operation that vibrates, plunger displacement pump 7
The oscillation pressure produced is when acting on anisotropic shale reservoir, and reservoir can be made to be pressed off
In short time, produce the crack of a plurality of ribs of the fan shape, slow down the single pressure peak action intensity to stratum,
Reduce major fracture under single pressure peak moment development length, thus avoid pressure to wear water layer.
Another technical scheme of the present invention is, a kind of shale gas horizontal well based on pressure oscillation
Operational method, specifically comprises the following steps that
Step one, according to the seismic data of shale gas target reservoir and the analysis processing result of geologic information,
Determine rock forming mineral kind and the content thereof of net horizontal section in described target reservoir；
Step 2, according to the rock forming mineral kind of described net horizontal section and content thereof, determine and wash for acidifying
Type sour in the flushing fluid of well and content, started pump truck 11, and entered target reservoir by acid tank truck 3
Row acidizing flushing operation；
Step 3, carry out pressing crack construction preparation, including the circulation carried out in pressing crack construction, pressure testing and
Operation is squeezed in examination；
Step 4, beginning pressing crack construction work, open oscillatory system 5 simultaneously, and pass through pressure transducer
9 monitoring wellhead back pressures, oscillatory system 5 is according to receiving the well head pressure letter that pressure transducer 9 feeds back
Number, to start and run signal generator 4, the signal that signal generator 4 produces passes to oscillatory system
In servo control mechanism 6, servo control mechanism 6 according to receive signal control plunger displacement pump 7, make plunger displacement pump 7 produce
Raw oscillation pressure, and then feed back to downhole fluid by pump truck 11；
Step 5, monitoring wellhead back pressure uphill process in, when back pressure is in 0～40Mpa, often go up
Rise 5Mpa and run an oscillatory system 5, after back pressure rises to 40Mpa, often rise 2Mpa fortune
Oscillatory system 5 of row, and the pressure break Dynamic Construction curve of display on measuring instrument car 12, when pressure break is moved
When there is obvious change of shape in state construction curve, continuous service oscillatory system 10～close down after 20 minutes and be
System, and on measuring truck 12, the discharge curve of display carries out adding sand operation after stablizing, and adds institute in sand operation
Mix by a certain percentage by the fracturing fluid in sand proppant and many group liquid tank 1 and additive with load fluid
Form；
Step 6, carry out the displacement fluid operation of pressing crack construction, and close all terminal valves of well head, root
According to fracturing fluid break time t0Determine closed-in time t, it is desirable to t=1.2t0, staff with clear water to pump truck
11 and each high pressure line be carried out and bleed off pressure, winding shaft lower tubular column also tidies up job site, pressing crack construction
Work and safe escape well site.
Optionally, the mineral species of described rock include following at least one: sandstone, limestone, in vain
Yun Yan.
Optionally, the type of described acid solution include following at least one: hydrochloric acid, Fluohydric acid..
The above, the only preferably detailed description of the invention of the present invention, but protection scope of the present invention is also
Be not limited to this, all those familiar with the art in technical scope disclosed by the invention,
Design according to technical scheme and the present invention thereof in addition equivalent or change and all should contain
Within protection scope of the present invention.
Claims (2)
1. a shale gas horizontal well apparatus for work based on pressure oscillation, including: it is connected to organize liquid tank more
(1) fracturing blender truck (2), acid tank truck (3), pump truck (11) and measuring truck (12), its feature
It is, is connected to described pump truck (11) and described measuring truck (12) respectively by high pressure line recover the oil
On tree (10), will be connected by data wire between described pump truck (11) and described measuring truck (12),
Described fracturing blender truck (2) and described acid tank truck (3) are connected to described pump truck (11) by high pressure line respectively
On, described measuring truck (12) is provided with the aobvious of display pressure break Dynamic Construction curve and pump truck output curve
Showing device, described pump truck (11) connects oscillatory system (5) also by high pressure line, in described pump truck (11)
And it is additionally provided with hydraulic valve (8), described vibration on the high pressure line between described oscillatory system (5)
System (5) includes signal generator (4), servo control mechanism (6) and plunger displacement pump (7), described vibration
System (5) connects pressure transducer (9) by data wire, and described pressure transducer (9) is by height
Pressure pipeline is connected on described production tree (10), feeds back well head pressure by described pressure transducer (9)
Force signal, to start and to run described signal generator (4), and then is driven by described servo control mechanism (6)
Dynamic described plunger displacement pump (7) produces oscillation pressure.
2. use the shale gas horizontal well operational method that the apparatus for work described in claim 1 is carried out,
It is characterized in that, comprise the following steps:
Step one, according to the seismic data of shale gas target reservoir and the analysis processing result of geologic information,
Determine rock forming mineral kind and the content thereof of net horizontal section in described target reservoir；
Step 2, according to the rock forming mineral kind of described net horizontal section and content thereof, determine and wash for acidifying
Type sour in the flushing fluid of well and content, start pump truck (11), and by acid tank truck (3) to mesh
Mark reservoir carries out acidizing flushing operation；
Step 3, carry out pressing crack construction preparation, including the circulation carried out in pressing crack construction, pressure testing and
Operation is squeezed in examination；
Step 4, beginning pressing crack construction work, opened oscillatory system (5) simultaneously, and passed by pressure
Sensor (9) monitoring wellhead back pressure, oscillatory system (5) feeds back to according to receiving pressure transducer (9)
The well head pressure signal come, to start and run signal generator (4), signal generator (4) produces
Signal pass to the servo control mechanism (6) in oscillatory system, servo control mechanism (6) according to receive signal
Control plunger displacement pump (7), make plunger displacement pump (7) produce oscillation pressure, and then fed back by pump truck (11)
To downhole fluid；
Step 5, monitoring wellhead back pressure uphill process in, when back pressure is in 0～40Mpa, often go up
Rise 5Mpa and run an oscillatory system (5), after back pressure rises to 40Mpa, often rise 2Mpa
Run an oscillatory system (5), and the pressure break Dynamic Construction curve of the upper display of measuring instrument car (12),
When there is obvious change of shape in pressure break Dynamic Construction curve, continuous service oscillatory system (5) 10～20
Shutdown system after minute, and carry out adding sand operation after the discharge curve of the upper display of measuring truck (12) is stable,
Add load fluid used in sand operation and by sand proppant and organize the fracturing fluid in liquid tank (1) and interpolation more
Agent mixes by a certain percentage；
Step 6, carry out the displacement fluid operation of pressing crack construction, and close all terminal valves of well head, root
According to fracturing fluid break time t0Determine closed-in time t, it is desirable to t=1.2t0, staff with clear water to pump truck
(11) and each high pressure line is carried out and bleeds off pressure, winding shaft lower tubular column also tidies up job site, pressure break
Construction working completes and safe escape well site.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027716.9A CN108150140B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation device based on pressure oscillation |
| CN201610298193.2A CN105863571B (en) | 2016-05-06 | 2016-05-06 | A kind of shale gas horizontal well operational method based on pressure oscillation |
| CN201810027717.3A CN108266162B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
| CN201810028120.0A CN108561110B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method |
| CN201810028125.3A CN108150141B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298193.2A CN105863571B (en) | 2016-05-06 | 2016-05-06 | A kind of shale gas horizontal well operational method based on pressure oscillation |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810028120.0A Division CN108561110B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method |
| CN201810027716.9A Division CN108150140B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation device based on pressure oscillation |
| CN201810028125.3A Division CN108150141B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
| CN201810027717.3A Division CN108266162B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
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| CN105863571A true CN105863571A (en) | 2016-08-17 |
| CN105863571B CN105863571B (en) | 2018-01-16 |
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| CN201810028120.0A Expired - Fee Related CN108561110B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method |
| CN201610298193.2A Expired - Fee Related CN105863571B (en) | 2016-05-06 | 2016-05-06 | A kind of shale gas horizontal well operational method based on pressure oscillation |
| CN201810027717.3A Expired - Fee Related CN108266162B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
| CN201810028125.3A Expired - Fee Related CN108150141B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
| CN201810027716.9A Expired - Fee Related CN108150140B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation device based on pressure oscillation |
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| CN201810027717.3A Expired - Fee Related CN108266162B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
| CN201810028125.3A Expired - Fee Related CN108150141B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation method based on pressure oscillation |
| CN201810027716.9A Expired - Fee Related CN108150140B (en) | 2016-05-06 | 2016-05-06 | Shale gas horizontal well operation device based on pressure oscillation |
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| CN105464638A (en) * | 2015-10-29 | 2016-04-06 | 中国石油大学(北京) | Coal bed gas well pulse radial drilling and double-pulsating hydrofracturing method |
| CN205605181U (en) * | 2016-05-06 | 2016-09-28 | 延安大学 | Shale air water horizontal well operation device based on pressure oscillation |
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| CN103370494B (en) * | 2010-12-30 | 2017-02-22 | 普拉德研究及开发股份有限公司 | System and method for performing downhole stimulation operations |
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- 2016-05-06 CN CN201810027717.3A patent/CN108266162B/en not_active Expired - Fee Related
- 2016-05-06 CN CN201810028125.3A patent/CN108150141B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108561110A (en) | 2018-09-21 |
| CN105863571B (en) | 2018-01-16 |
| CN108150140B (en) | 2021-03-16 |
| CN108266162A (en) | 2018-07-10 |
| CN108266162B (en) | 2021-03-16 |
| CN108150141A (en) | 2018-06-12 |
| CN108150140A (en) | 2018-06-12 |
| CN108561110B (en) | 2021-03-16 |
| CN108150141B (en) | 2021-03-16 |
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