CN105422074B - Electric initiating liquid medicine dynamic fracturing equipment - Google Patents
Electric initiating liquid medicine dynamic fracturing equipment Download PDFInfo
- Publication number
- CN105422074B CN105422074B CN201510813535.5A CN201510813535A CN105422074B CN 105422074 B CN105422074 B CN 105422074B CN 201510813535 A CN201510813535 A CN 201510813535A CN 105422074 B CN105422074 B CN 105422074B
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- China
- Prior art keywords
- cylinder
- plug
- plugged
- electrode
- outer barrel
- Prior art date
- 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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- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 239000003814 drug Substances 0.000 title claims abstract description 10
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 15
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000003245 coal Substances 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 13
- 239000002360 explosive Substances 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention be specially a kind of electric initiating liquid medicine dynamic fracturing equipment, solve the problems, such as existing fracturing equipment exist potential safety hazard, capacity usage ratio it is poor and it is easy blocking coal seam fracture.The top of pressure break outer barrel is plugged with electrode inflation plug, the bottom of pressure break outer barrel is plugged with air jet pipe, some fumaroles are provided with the outside of air jet pipe, electrode column and liquid carbon dioxide passage are provided with electrode inflation plug, electrode inflation the upper part of the plug is plugged with power supply cylinder, and high voltage power supply is placed with power supply cylinder；The cylinder that is flexible coupling is provided with the middle part of pressure break outer barrel, two, which are flexible coupling between cylinder, is connected with the soft cylinder of insulation, two outer ends for being flexible coupling cylinder are plugged with insulation plug, electrode column I is provided with two insulation plugs, electrode column I upper and lower ends are provided with wire, superposed insulation the upper part of the plug is socketed with interior connecting cylinder, and interior connecting cylinder is provided with flow of liquid carbon dioxide through hole.The present invention has prevented the generation of potential safety hazard phenomenon, and the utilization rate of high energy mixed gas is substantially improved.
Description
Technical field
The present invention relates to coal bed fracturing device, specially a kind of electric initiating liquid medicine dynamic fracturing equipment.
Background technology
High-Energy Gas Fracturing Technology is caused by oil reservoir target zone conflagration using solid-state, liquid gunpowder or propellant
A large amount of high temperature and high pressure gas, pressure break is loaded to stratum pulse, stratum is produced and forms multiple cracking system, while produced stronger
Pulse oscillating acts on stratum matrix, comprehensive to improve stratum infiltration flow conductivity, expands and effectively recovers the oil（Gas）Scope, with
Reach the purpose for improving yield.It is characterized in：The multiple cracking system not constrained by crustal stress can be produced on stratum, is advantageous to link up
It is micro- that the stronger pulse oscillating dissemination of intrinsic fracture, expansion drainage area, while generation is advantageous to change formation lithology matrix
The changing of the relative positions changes, and links up matrix channel, extends stratum depths, improves stratum permeability, improve oil gas well production.
High energy gas fracturing device traditional at present is ignited using priming or detonator, in production and assembly, preservation, fortune
Potential safety hazard be present during defeated, use；And the hot solid particle that blast is brought is possible to contact with device in Gas, when it
Time of contact exceedes the gas sensitive time, will make gas that burning or blast occur, and is scattered and disappeared mostly in a manner of heat energy, energy
The material that the not high and too high temperature of utilization rate is easily melted in coal seam blocks crack.
The content of the invention
Potential safety hazard, capacity usage ratio to be present poor and easy block coal seam fracture in order to solve existing fracturing equipment by the present invention
A kind of problem, there is provided electric initiating liquid medicine dynamic fracturing equipment.
The present invention adopts the following technical scheme that realization：Electric initiating liquid medicine dynamic fracturing equipment, including pressure break outer barrel, pressure
The top for splitting outer barrel is plugged with the electrode inflation plug sealed against, and the bottom of pressure break outer barrel is plugged with air jet pipe, air jet pipe with
Seal washer and steel diaphragm are provided between pressure break outer barrel, some fumaroles are provided with the outside of air jet pipe, electrode is inflated in plug
Electrode column and liquid carbon dioxide passage are provided with, check valve is provided with liquid carbon dioxide passage, electrode is inflated on plug
Portion is plugged with power supply cylinder, and high voltage power supply is placed with power supply cylinder；Being flexible coupling of being distributed up and down is provided with the middle part of pressure break outer barrel
Cylinder, two, which are flexible coupling between cylinder, is connected with the soft cylinder of insulation that cavity is surrounded with pressure break outer barrel, and two outer ends for being flexible coupling cylinder are plugged with
The insulation plug sealed against, be provided with electrode column I in two insulation plugs, superposed electrode column I upper ends be provided with
The upper wire of electrode column connection, the lower wire being connected with steel diaphragm is provided with positioned at the electrode column I lower ends of bottom, superposed
Insulation the upper part of the plug is socketed with the interior connecting cylinder for being plugged on motor inflation plug bottom, and interior connecting cylinder side wall is provided with liquid titanium dioxide
Carbon flow through hole.
Before fracturing work, liquid explosives are poured into the soft cylinder of insulation, and assemble fracturing equipment, by high-pressure metering pump by liquid
Carbon dioxide flows into pressure break outer tube side wall through check valve, liquid carbon dioxide passage, flow of liquid carbon dioxide through hole successively；Carry out
During fracturing work, after connecting circuit, high voltage power supply connects through upper wire, electrode column, liquid medicine, electrode column I, lower wire, steel diaphragm
The closed-loop path that ground is formed forms breakdown current, and caused electric arc ignites liquid explosives in liquid medicine, and liquid explosives will insulate
Soft cylinder is scraped, and high energy gas mixes rapidly with liquid carbon dioxide, starts to be gasified so that and internal pressure kept raises, by
It can not lead off at once in the high energy gas energy formed in the presence of steel diaphragm, pressure break outer barrel, the pressure in sealed chamber is quick
Rise, when pressure exceedes the maximum pressure that steel diaphragm can be born, gases at high pressure bursting steel diaphragm and by fumarole to week
Enclose and eject, act on coal seam, carry out pressure break, overcome existing fracturing equipment exist potential safety hazard, capacity usage ratio it is poor and
The problem of easily blocking coal seam fracture.
The present invention is reasonable in design reliable, has prevented safety to coal bed fracturing by the way of mixed gas and electrical breakdown
The generation of hidden danger phenomenon, and the utilization rate of high energy mixed gas is substantially improved, while the problem of blocking coal seam fracture is overcome,
It is readily transported with small volume, the advantages of easy to operate and cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1- pressure break outer barrels, 2- electrodes inflation plug, 3- air jet pipes, 4- seal washers, 5- steel diaphragms, 6- fumaroles,
7- electrode columns, 8- liquid carbon dioxide passages, 9- check valves, 10- power supply cylinders, 11- high voltage power supplies, 12- are flexible coupling cylinder, 13-
Insulate soft cylinder, 14- insulation plugs, the upper wires of 15- electrode columns I, 16-, 17- lower wires, connecting cylinder in 18-, 19- liquid titanium dioxides
Carbon flow through hole.
Embodiment
Electric initiating liquid medicine dynamic fracturing equipment, including pressure break outer barrel 1, the top of pressure break outer barrel 1 are plugged with what is sealed against
Electrode inflates plug 2, and the bottom of pressure break outer barrel 1 is plugged with air jet pipe 3, sealing gasket is provided between air jet pipe 3 and pressure break outer barrel 1
Circle 4 and steel diaphragm 5, the outside of air jet pipe 3 are provided with some fumaroles 6, electrode column 7 and liquid are provided with electrode inflation plug 2
Carbon dioxide channel 8, check valve 9 is provided with liquid carbon dioxide passage 8, and electrode inflation plug 2 top is plugged with power supply cylinder
Body 10, high voltage power supply 11 is placed with power supply cylinder 10；The middle part of pressure break outer barrel 1 is provided with the cylinder 12 that is flexible coupling being distributed up and down, and two
It is flexible coupling between cylinder 12 and is connected with the soft cylinder 13 of insulation that cavity is surrounded with pressure break outer barrel 1, the two equal grafting in outer end for being flexible coupling cylinder 12
There is the insulation plug 14 sealed against, be provided with two insulation plugs 14 on electrode column I15, superposed electrode column I15
End is provided with the upper wire 16 being connected with electrode column 7, and the electrode column I15 lower ends of bottom are provided with what is be connected with steel diaphragm 5
Lower wire 17, the superposed insulation upper socket of plug 14 has the interior connecting cylinder 18 for being plugged on motor inflation plug 2 bottom, interior
The side wall of connecting cylinder 18 is provided with flow of liquid carbon dioxide through hole 19.
In specific implementation process, liquid explosives are known products from common ammonium nitrate, glycerine, the mixture of water；It is high
Voltage source 11 is made up of battery, inverter, step-up transformer, rectifier, super capacitor, pressure-air switch, battery output
Direct current passes through inverter shape high-frequency impulse, and high-frequency impulse produces high-voltage alternating pulse, then rectified device by step-up transformer
Rectifying and wave-filtering forms high voltage direct current, is charged to super capacitor, and super capacitor has the characteristics of voltage is high, amount of charge stored is big, makees
For final energy output source.
Claims (1)
- A kind of 1. electric initiating liquid medicine dynamic fracturing equipment, it is characterised in that：Including pressure break outer barrel（1）, pressure break outer barrel（1）Top It is plugged with the electrode inflation plug sealed against（2）, pressure break outer barrel（1）Bottom be plugged with air jet pipe（3）, air jet pipe（3）With Pressure break outer barrel（1）Between be provided with seal washer（4）And steel diaphragm（5）, air jet pipe（3）Outside be provided with some fumaroles（6）, Electrode inflates plug（2）Inside it is provided with electrode column（7）With liquid carbon dioxide passage（8）, liquid carbon dioxide passage（8）On set It is equipped with check valve（9）, electrode inflation plug（2）Top is plugged with power supply cylinder（10）, power supply cylinder（10）Inside it is placed with high pressure Power supply（11）；Pressure break outer barrel（1）Middle part is provided with the cylinder that is flexible coupling being distributed up and down（12）, two are flexible coupling cylinder（12）Between be connected with With pressure break outer barrel（1）Surround the soft cylinder of insulation of cavity（13）, two are flexible coupling cylinder（12）Outer end be plugged with seal against it is exhausted Edge plug（14）, two insulation plugs（14）Inside it is provided with electrode column I（15）, superposed electrode column I（15）Upper end is set Have and electrode column（7）The upper wire of connection（16）, the electrode column I positioned at bottom（15）Lower end is provided with and steel diaphragm（5）Connection Lower wire（17）, superposed insulation plug（14）Upper socket is plugged on motor inflation plug（2）Connect in bottom Connect cylinder（18）, interior connecting cylinder（18）Side wall is provided with flow of liquid carbon dioxide through hole（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510813535.5A CN105422074B (en) | 2015-11-23 | 2015-11-23 | Electric initiating liquid medicine dynamic fracturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510813535.5A CN105422074B (en) | 2015-11-23 | 2015-11-23 | Electric initiating liquid medicine dynamic fracturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422074A CN105422074A (en) | 2016-03-23 |
| CN105422074B true CN105422074B (en) | 2018-02-02 |
Family
ID=55500569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510813535.5A Active CN105422074B (en) | 2015-11-23 | 2015-11-23 | Electric initiating liquid medicine dynamic fracturing equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN105422074B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952426B (en) * | 2016-06-23 | 2018-03-09 | 华中科技大学 | A kind of de-plugging of well increasing device based on liquid electric pulse shock wave |
| CN106223919B (en) * | 2016-08-19 | 2020-06-12 | 中煤科工集团重庆研究院有限公司 | Carbon dioxide phase change perforation presplitting permeability increasing device |
| CN106401553A (en) * | 2016-11-21 | 2017-02-15 | 胡少斌 | Carbon dioxide-energy gathering agent detonation impacting phase-change jet device and method thereof |
| WO2018136423A1 (en) * | 2017-01-17 | 2018-07-26 | Digital Solid State Propulsion, Inc. | Use of liquid and gel monopropellants for well stimulation |
| CN107587877B (en) * | 2017-07-20 | 2019-09-06 | 中北大学 | A kind of thin-walled rubber tubular type fracturing equipment |
| CN107693973A (en) * | 2017-11-15 | 2018-02-16 | 郭翰 | A kind of motor-vehicle glass window explosion escape device |
| CN108131120B (en) * | 2017-12-12 | 2019-11-08 | 中国石油天然气股份有限公司 | Completion tubular column, completion method and gas injector mechanism |
| CN109282707B (en) * | 2018-10-22 | 2023-09-05 | 安徽理工大学 | Liquid carbon dioxide phase change fracturing device |
| CN112034506B (en) * | 2019-06-04 | 2024-04-30 | 中国石油天然气集团有限公司 | Carbon dioxide focus controller |
| CN110284855B (en) * | 2019-07-03 | 2020-10-16 | 中国石油大学(北京) | Downhole setting tool and method |
| CN112832728B (en) * | 2021-01-08 | 2022-03-18 | 中国矿业大学 | Shale reservoir fracturing method based on methane multistage combustion and explosion |
| CN113266352A (en) * | 2021-06-28 | 2021-08-17 | 中北大学 | Coal bed dynamic fracturing method and fracturing device based on high-power electric pulse |
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| CN103352684A (en) * | 2013-07-15 | 2013-10-16 | 中北大学 | Chemical and physical combined explosion fracturing device and manufacturing method thereof |
| CN103982168A (en) * | 2014-04-21 | 2014-08-13 | 中北大学 | Underground multi-stage intelligent high pressure gas pulse formation fracturing device and method thereof |
| CN104389574A (en) * | 2014-10-31 | 2015-03-04 | 河南神华能源工程有限公司 | Gaseous phase fracturing device |
| CN104594866A (en) * | 2014-10-31 | 2015-05-06 | 河南神华能源工程有限公司 | New method for rapid gas drainage technology based on low permeability coal bed gas phase fracturing |
| CN105064972A (en) * | 2015-08-03 | 2015-11-18 | 中国石油大学(华东) | Liquid gun propellant capsule and high-energy gas fracturing process using liquid gun propellant capsule |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7306038B2 (en) * | 2004-10-13 | 2007-12-11 | Challacombe Bradley J | Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life |
-
2015
- 2015-11-23 CN CN201510813535.5A patent/CN105422074B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352684A (en) * | 2013-07-15 | 2013-10-16 | 中北大学 | Chemical and physical combined explosion fracturing device and manufacturing method thereof |
| CN103982168A (en) * | 2014-04-21 | 2014-08-13 | 中北大学 | Underground multi-stage intelligent high pressure gas pulse formation fracturing device and method thereof |
| CN104389574A (en) * | 2014-10-31 | 2015-03-04 | 河南神华能源工程有限公司 | Gaseous phase fracturing device |
| CN104594866A (en) * | 2014-10-31 | 2015-05-06 | 河南神华能源工程有限公司 | New method for rapid gas drainage technology based on low permeability coal bed gas phase fracturing |
| CN105064972A (en) * | 2015-08-03 | 2015-11-18 | 中国石油大学(华东) | Liquid gun propellant capsule and high-energy gas fracturing process using liquid gun propellant capsule |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422074A (en) | 2016-03-23 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Tiehua Inventor after: Lu Zhen Inventor after: Sun Meng Inventor after: Wang Zhiqiang Inventor after: Zhang Hongyan Inventor after: Yin Shuai Inventor after: Cui Chunsheng Inventor after: Sun Chuanmeng Inventor after: Wang Zhenfu Inventor after: Wu Zhibo Inventor after: Xiao Huiqiang Inventor before: Ma Tiehua Inventor before: Sun Meng Inventor before: Zhang Hongyan Inventor before: Wang Zhiqiang Inventor before: Cui Chunsheng Inventor before: Sun Chuanmeng Inventor before: Lu Zhen Inventor before: Yin Shuai Inventor before: Wu Zhibo Inventor before: Wang Zhenfu |
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