CN105927176A - Downhole high-temperature-resistant efficient shock wave transmission rubber film jacket device - Google Patents
Downhole high-temperature-resistant efficient shock wave transmission rubber film jacket device Download PDFInfo
- Publication number
- CN105927176A CN105927176A CN201610410813.7A CN201610410813A CN105927176A CN 105927176 A CN105927176 A CN 105927176A CN 201610410813 A CN201610410813 A CN 201610410813A CN 105927176 A CN105927176 A CN 105927176A
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- Prior art keywords
- glued membrane
- shock wave
- membrane sheath
- rubber film
- resistant
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000035939 shock Effects 0.000 title claims abstract description 84
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 230000000694 effects Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims description 82
- 238000010891 electric arc Methods 0.000 claims description 10
- 230000001052 transient effect Effects 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000003749 cleanliness Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000003129 oil well Substances 0.000 description 11
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 210000003462 vein Anatomy 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
- 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
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)
- Surgical Instruments (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a downhole high-temperature-resistant efficient shock wave transmission rubber film jacket device which is arranged on a side surface of a columnar hydro-electric pulse shock wave transmitter and mainly comprises a rubber film jacket, sealing steel rings and fastening devices. The downhole high-temperature-resistant efficient shock wave transmission rubber film jacket device has the advantages that rubber films are made of high-temperature-resistant (300 DEG C), heat-resistant, oxidation-resistant, oil-resistant and corrosion-resistant materials with the elongation higher than 200%; the rubber film jacket has smooth surfaces and can resist high-strength repetitive instantaneous mechanical shock of shock waves; the cleanliness of the inside of the shock wave transmitter can be kept by the rubber film jacket, parameters of discharge liquid, discharge circuits and hydro-electric gaps are optimal in matching degree, and the electric-to-mechanical-energy conversion efficiency of the shock wave transmitter can be improved; energy of the shock waves can be efficiently transmitted out of the rubber film jacket by the rubber films, substantial waveform distortion of the shock waves can be prevented, and mechanical effects of the shock waves can be improved; the rubber film jacket is simple in structure, the hydro-electric pulse shock waves can be efficiently transmitted, and the downhole high-temperature-resistant efficient shock wave transmission rubber film jacket device is good in universality, high in reliability, little in repair and maintenance work and wide in application range.
Description
Technical field
The invention belongs to High-Voltage Technology and technical field of pulse power, more particularly, to a kind of well
The glued membrane sheath device of lower high temperature high efficiency rate transmission shock wave.
Background technology
When there is high voltage pulse heavy-current discharge in liquid, plasma channel and cavity are the most swollen
Swollen, the liquid of weak compressibility outwards gives off the shock wave of high intensity.This is referred to as the machine of electrohydraulic effect
Tool effect, current liquid electric pulse shock wave has been widely used in external stone crushing, electrohydraulic forming, oil field
The fields such as plugging removal and stimulation.Wherein use repetition rate liquid electric pulse shock wave bombardment perforation tamper and effect
Rock stratum around, it is possible to the blocking of efficient solution oil removing gas well, increases formation fractures, improves oil and gas production.
The method belongs to physics removal and stimulation method purely, has low cost, environmental friendliness, excellent effect
Etc. feature.
But due to down-hole liquid mixture in gravel, profit etc., liquid discharge of electricity is easily subject to Breakup of Liquid Ring
The impact in border, and electrode affected its Recession rate by acid-base value and is difficult to control to, and affects making of electrode
Use the life-span；Electrode easily by the impurity adhesion of toughness in liquid, affects the disruptive field intensity of electrode surface,
Liquid breakdown dispersibility increases, therefore, it is difficult to ensure higher discharge reliability and stability.Due to oil
The high temperature of down-hole, high static pressure and the liquid environment of complexity, be directly placed in naked for electrode system in well,
The conversion efficiency being easily caused liquid pulse electro discharge is low, and instrument functional reliability, stability decline.
Summary of the invention
For the defect of prior art, it is an object of the invention to provide a kind of down-hole high temperature high efficiency rate
The glued membrane sheath device of transmission shock wave, it is intended to solve in prior art due to the high temperature under oil well, Gao Jing
Pressure and the liquid environment of complexity, be directly placed in naked for electrode system in well, be easily caused liquid electric pulse
The conversion efficiency of electric discharge is low, the problem that instrument functional reliability, stability decline.
The invention provides the glued membrane sheath device of a kind of down-hole high temperature high efficiency rate transmission shock wave, glued membrane
Sheath device is used for being set in shock wave emitter so that described shock wave emitter and outside oil well liquid
Isolation, makes liquid electric pulse arc discharge produce the stage of shock wave, improves the reliability and stability of electric discharge；
Described glued membrane sheath device includes: glued membrane sheath, ring gasket and clamp device；Glued membrane sheath and institute
Stating shock wave emitter and form coaxial configuration, described glued membrane sheath is by described clamp device and described sealing
Steel ring connects；Described glued membrane sheath elastic elongation under transient shock wave effect, is delivered to SHOCK ENERGY
Outside glued membrane sheath so that the waveform of shock wave does not produce and significantly distorts.Due to high-field electrode, low tension
High-voltage large current liquid electric pulse electric arc, electric arc and expandable cavity shape in glued membrane sheath is formed between pole
Strength shock wave is become outwards to propagate.Glued membrane is elastic elongation under transient shock wave effect, it is possible to efficiently by shock wave
Energy is delivered to outside glued membrane sheath so that the waveform of shock wave does not produce and significantly distorts.
Further, the material of described glued membrane sheath is resistance to 300 DEG C of high temperature above and percentage elongation exists
The material of more than 200%.Glued membrane sheath can keep the cleaning within liquid electric pulse shock wave emitter, simultaneously
The liquid of optional suitable conductivity so that the electric energy of shock wave emitter is high to mechanical energy conversion efficiency.
Further, the material of described glued membrane sheath is fluorubber or polythene material.
Further, the thickness of described glued membrane sheath is 1mm～10mm.
Further, described glued membrane sheath is monolithic extruded molding.
Further, described glued membrane sheath is the column construction of both ends open, and protects at described glued membrane
The two ends of set are provided with bulge-structure.The smooth nothing of glued membrane jacket surface significantly connects vestige, glued membrane
Intensity everywhere identical, and be resistant to the repetition of liquid electric pulse shock wave, high intensity instantaneous mechanical impact.
The glued membrane sheath of the present invention down-hole high temperature high efficiency transmission shock wave for providing, has following technology
Advantage:
(1) glued membrane sheath can keep the cleaning within liquid electric pulse emitter, it is to avoid gravel or jelly
Matter plugging fluid electricity gap, improves the functional reliability of instrument；
(2) according to the difference of the special environment of oil well, glued membrane sheath needs to use different materials, its
Character is different.In order to ensure liquid electricity gap breakdown reliability, improve the electric energy conversion to mechanical energy
Efficiency, need to make the density of electric discharge liquid, electricity according to the character such as the density of the glued membrane sheath selected and parameter
The parameters such as conductance match, and such as oil well liquid saliferous divides high, then its density is more than 1kg/cm3, this
Time glued membrane sheath with electric discharge liquid density be also greater than 1kg/cm3, and ensure with the density of oil well liquid
Unanimously.1kg/cm is all used with glued membrane sheath with electric discharge liquid3Situation compare, this can make to be passed by shock wave
The loss that catadioptric when being delivered to interface causes reduces about 10～30%, so that shock wave is the most lossless
Through glued membrane, improve shock strength；
(3) glued membrane sheath has the most elastic and elongation characteristics, reduces the shock wave damage through glued membrane
Consumption and reflection, high efficiency transmission liquid electric pulse shock wave, improves the effect of liquid electric pulse shock wave plugging removal and stimulation
Really.
Accompanying drawing explanation
Fig. 1 is that the glued membrane sheath of embodiment of the present invention offer shows with the assembling of liquid electric pulse shock wave emitter
It is intended to.
Fig. 2 is the glued membrane sheath generalized section that the embodiment of the present invention provides.
Fig. 3 is the glued membrane sheath dress of the down-hole high temperature high efficiency rate transmission shock wave that the embodiment of the present invention provides
The shock wave transmission effect put is typical shock wave transmission effect comparison diagram with prior art.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, the present invention is further elaborated.Should be appreciated that described herein specifically
Embodiment only in order to explain the present invention, is not intended to limit the present invention.
In the present invention, due to liquid electric pulse shock wave produce during liquid electric conductivity to electric energy to
The conversion efficiency of mechanical energy has a significant effect, and therefore uses sealing, the liquid of suitable parameters can produce
The shock wave of higher intensity, improves the functional reliability of liquid electric pulse shock wave type instrument simultaneously.
The glued membrane sheath device of the down-hole high temperature high efficiency transmission shock wave that the present invention provides has structure letter
Single, reliability is high, and repair and maintenance work is few, and the feature such as have wide range of applications, and can be used for down-hole high
The complex fluid environment that temperature, high static pressure and viscosity are big, it is ensured that produce the liquid electricity arteries and veins of high intensity
Bow wave, and efficiently outwards transmit shock wave.
The glued membrane sheath device of the down-hole high temperature high efficiency transmission shock wave that the embodiment of the present invention provides includes glue
Film sheath 107, ring gasket 108, clamp device 109.The size of glued membrane sheath 107 can be overlapped just
Live shock wave emitter, make shock wave emitter and glued membrane sheath 107 form coaxial configuration, glued membrane sheath 107
It is connected by clamp device 109 with ring gasket 108, makes shock wave emitter be reliably sealed to glued membrane
Sheath 107 is internal, thus by shock wave emitter and outside oil well liquid isolation, makes liquid electric pulse electric arc
Electric discharge produces the stage of shock wave, improves the reliability and stability of electric discharge.Glued membrane sheath 107 makes electrode
System (high-field electrode 101, low-field electrode 102, low pressure return coaxial configuration 103, insulated support
106) the electric discharge liquid 105 residing for is not by well liquid body pollution.The electric discharge liquid 105 of more high conductivity
Be conducive to arc discharge formation, make electric arc controllable, this also can increase instant discharge current peak value and
It is injected into the energy of arc channel, improves injecting power peak value, improve shock strength.
The glued membrane sheath of down-hole high temperature high efficiency transmission shock wave, glued membrane sheath 107 can use high temperature resistant
(300 DEG C), thermostability, non-oxidizability, oil resistivity, corrosion resistance, percentage elongation are more than 200%
Material, it is for instance possible to use fluorubber, polyethylene film etc., totally wanting glued membrane sheath 107
Asking high temperature resistant for it, mechanical strength is high, and barrier performance is good, anticorrosive, ageing resistance strong, transient state
Excellent response performance.It is comprehensive that the thickness of the glued membrane being applied to oil well complex environment is designed as 1mm～10mm
Effect is preferable.Glued membrane sheath 107 forms for monolithic extruded, smooth surface without significantly connecting vestige,
The intensity everywhere of glued membrane is identical, and is resistant to the repetition of liquid electric pulse shock wave, the punching of high intensity instantaneous mechanical
Hit.
The glued membrane sheath of down-hole high temperature high efficiency transmission shock wave, it is by mechanical engagement and low pressure return post
Shape electrode 103 forms coaxial configuration, can improve the mechanical strength of device；Shock-wave generating device is airtight
Inside glued membrane, the liquid of outside oil well is reliably isolated, inside shield electrode with electric discharge liquid 105
Structure is not affected by oil well environment；It is clear that glued membrane sheath can keep within liquid electric pulse shock wave emitter
Clean, simultaneously according to the actual condition of oil well, select the liquid that electrical conductivity is about 10～20mS/cm, preshot
Wearing time delay and shorten about ten times than tap water (electrical conductivity is 0.14mS/cm), therefore shock strength improves about
0.5～1.5 times, the electric energy making shock wave emitter is high to mechanical energy conversion efficiency.
The glued membrane sheath of down-hole high temperature high efficiency transmission shock wave, high-field electrode 101, low-field electrode 102 it
Between formed high-voltage large current liquid electric pulse electric arc 104, electric arc and expandable cavity are formed in glued membrane sheath
Strongly shock wave is outwards propagated.Glued membrane is elastic elongation under transient shock wave effect, it is possible to efficiently by shock wave energy
Amount is delivered to outside glued membrane sheath so that the waveform of shock wave does not produce and significantly distorts.
As it is shown in figure 1, the glued membrane sheath of a kind of down-hole high temperature high efficiency transmission shock wave of the present invention, always
Body structure include shock wave generator (high-field electrode 101, low-field electrode 102, low pressure return shell 103,
Discharge channel 104, electric discharge liquid 105 and insulated support 106 etc.), glued membrane sheath 107, seal
Steel ring 108 and securing member 109 etc..Wherein high-field electrode 101, low-field electrode 102 and metal outer cylinder
103 all use Stainless Steel material, and insulation fabric part 104 uses high-strength epoxy material, liquid electric pulse to put
Electro-hydraulic body 105 uses tap water.The electrode type of electric discharge be the negative template formula of positive rod, discharge liquid according to
Practical situation can use tap water, distilled water, deionized water or saline etc.；Glued membrane sheath 107 uses
The polyethylene film of function admirable or fluorubber film etc..Ring gasket can be realized by securable fastener 109
108 with the combining closely of rubber membrane 107, make shock wave generator reliably isolate with outside liquid.
As in figure 2 it is shown, the cylindricality pattern that whole glued membrane sheath 107 is both ends open, glued membrane sheath 107
Two ends projection is set, by securable fastener 109, rely on the elasticity of glued membrane sheath 107 itself by glue
Film is fixed.
When the storage capacitor of the pulse power is 3 μ F, when charging voltage is 30kV, away from discharge source 17cm
The shock wave waveform arrived is measured as shown in Figure 3 by place.During shock wave emitter sealed Cellophane, the peak value of its shock wave
When all slightly less than not filling glued membrane with the rising edge of shock wave, illustrate that glued membrane absorbs a part of energy and makes to swash
Intensity of wave reduces, and its elastic reaction makes the rising edge of shock wave slow down.Although sacrificing certain amplitude,
But the stability of arc discharge and reliability have obtained the lifting of certain amplitude.This is for the high pressure of oil well
The environment of highly corrosive liquid, effect becomes apparent from.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention,
Not in order to limit the present invention, all made within the spirit and principles in the present invention any amendment, etc.
With replacement and improvement etc., should be included within the scope of the present invention.
Claims (6)
1. the glued membrane sheath device of a down-hole high temperature high efficiency rate transmission shock wave, it is characterised in that institute
State glued membrane sheath device for being set in shock wave emitter so that described shock wave emitter and oil outer
Well liquid isolate, make liquid electric pulse arc discharge produce shock wave stage, improve electric discharge reliability with
Stability；Described glued membrane sheath device includes: glued membrane sheath (107), ring gasket (108) and
Clamp device (109)；
Described glued membrane sheath (107) forms coaxial configuration, described glued membrane sheath with described shock wave emitter
(107) it is connected with described ring gasket (108) by described clamp device (109)；Described glued membrane
Sheath (107) elastic elongation under transient shock wave effect, is delivered to SHOCK ENERGY outside glued membrane sheath,
The waveform making shock wave does not produce and significantly distorts.
2. glued membrane sheath device as claimed in claim 1, it is characterised in that described glued membrane sheath (107)
Material be resistance to 300 DEG C of high temperature above and percentage elongation material more than 200%.
3. glued membrane sheath device as claimed in claim 2, it is characterised in that described glued membrane sheath (107)
Material be fluorubber or polythene material.
4. the glued membrane sheath device as described in any one of claim 1-3, it is characterised in that described glue
The thickness of film sheath (107) is 1mm～10mm.
5. glued membrane sheath device as claimed in claim 1, it is characterised in that described glued membrane sheath (107)
For monolithic extruded molding.
6. glued membrane sheath device as claimed in claim 5, it is characterised in that described glued membrane sheath (107)
For the column construction of both ends open, and it is provided with protruding knot at the two ends of described glued membrane sheath (107)
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410813.7A CN105927176B (en) | 2016-06-13 | 2016-06-13 | A kind of underground high temperature high efficiency transmits the glued membrane sheath device of shock wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410813.7A CN105927176B (en) | 2016-06-13 | 2016-06-13 | A kind of underground high temperature high efficiency transmits the glued membrane sheath device of shock wave |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927176A true CN105927176A (en) | 2016-09-07 |
| CN105927176B CN105927176B (en) | 2017-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610410813.7A Active CN105927176B (en) | 2016-06-13 | 2016-06-13 | A kind of underground high temperature high efficiency transmits the glued membrane sheath device of shock wave |
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| Country | Link |
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| CN (1) | CN105927176B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799112A (en) * | 2017-10-12 | 2018-03-13 | 华中科技大学 | A kind of parameter acquiring method of liquid electric pulse shock wave generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206447Y (en) * | 2008-05-08 | 2009-03-11 | 陕西威迅石油科技有限公司 | Energy converter of high energy-gathering high-power electrical pulse device |
| CN102251755A (en) * | 2011-06-18 | 2011-11-23 | 中国石油集团西部钻探工程有限公司 | Vibration exciting rubber stopper |
| CN104832149A (en) * | 2015-05-16 | 2015-08-12 | 太原理工大学 | Electric pulse assisted hydrofracture unconventional gas reservoir permeability increasing method |
| EP2966255A2 (en) * | 2014-07-08 | 2016-01-13 | Linde Aktiengesellschaft | Methods for conveying oil and/or natural gas, in particular by means of fraccing or eor |
-
2016
- 2016-06-13 CN CN201610410813.7A patent/CN105927176B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206447Y (en) * | 2008-05-08 | 2009-03-11 | 陕西威迅石油科技有限公司 | Energy converter of high energy-gathering high-power electrical pulse device |
| CN102251755A (en) * | 2011-06-18 | 2011-11-23 | 中国石油集团西部钻探工程有限公司 | Vibration exciting rubber stopper |
| EP2966255A2 (en) * | 2014-07-08 | 2016-01-13 | Linde Aktiengesellschaft | Methods for conveying oil and/or natural gas, in particular by means of fraccing or eor |
| CN104832149A (en) * | 2015-05-16 | 2015-08-12 | 太原理工大学 | Electric pulse assisted hydrofracture unconventional gas reservoir permeability increasing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799112A (en) * | 2017-10-12 | 2018-03-13 | 华中科技大学 | A kind of parameter acquiring method of liquid electric pulse shock wave generator |
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| Publication number | Publication date |
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| CN105927176B (en) | 2017-12-22 |
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