CN107461185A - A kind of new fracturing drainage from coal seam coal seam device of air - Google Patents
A kind of new fracturing drainage from coal seam coal seam device of air Download PDFInfo
- Publication number
- CN107461185A CN107461185A CN201710928737.3A CN201710928737A CN107461185A CN 107461185 A CN107461185 A CN 107461185A CN 201710928737 A CN201710928737 A CN 201710928737A CN 107461185 A CN107461185 A CN 107461185A
- Authority
- CN
- China
- Prior art keywords
- coal seam
- pipe
- carbon dioxide
- liquid
- fracturing
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 51
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 24
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 19
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 19
- 238000000605 extraction Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000007639 printing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000010008 shearing Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 241000790917 Dioxys <bee> Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 235000013290 Sagittaria latifolia Nutrition 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000015246 common arrowhead Nutrition 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
- E21B43/006—Production of coal-bed methane
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention discloses a kind of new fracturing drainage from coal seam coal seam device of air.High-pressure carbon dioxide, fracturing coal seam are discharged using pipe is discharged, and utilizes and discharges pipe extraction coal bed gas；High-pressure carbon dioxide after high-pressure carbon dioxide is washed open level pressure shearing piece, is acted on coal seam by discharging pipe by being produced after the liquid carbon dioxide heating in liquid storage pipe, makes coal seam fracturing anti-reflection；Then using pipe joint and pumping pumping plant is evacuated, coal bed gas is come out by discharging pipe extraction.The invention belongs to mining machinery field, suitable for underground coal mine extraction coal bed gas.
Description
Technical field：
The present invention is a kind of new fracturing drainage from coal seam coal seam device of air, suitable for underground coal mine extraction coal bed gas, is belonged to
Mining machinery field.
Background technology：
At present, to improve the extraction efficiency of China's coal bed gas, need to generally fracturing methods be taken to coal seam, to increase coal seam
Permeability.Conventional fracturing is anti-reflection, and measure has：Advance borehole, hydraulic flushing in hole, coal-bed flooding, standing, hydraulic fracturing, waterpower
Extrusion etc., but during standing, the examination ＆ approval of explosive are difficult, transport and storage are by control；And hydraulic flushing in hole, pressure break or extrusion
When to hole sealing technology require it is higher.A kind of existing fracturing drainage from coal seam coal seam device of air, water is heated into by water by heating tube and steamed
Gas, impact fracturing is carried out to coal seam using high-pressure steam, but the apparatus structure is complicated, heating obtains the high-pressure steam time
Longer, fracturing is less efficient, it is often more important that needs to consume substantial amounts of water resource during fracturing coal seam, does not meet coal bed gas
The theory of lasting exploit.
The content of the invention：
To overcome the shortcomings that fracturing drainage from coal seam coal bed gas apparatus structure is complicated, and the fracturing coal seam time is grown, and water consumption is big, this
Invention discharges high-pressure carbon dioxide, fracturing coal seam using pipe is discharged, and utilizes and discharge pipe extraction coal bed gas, there is provided a kind of new cause
Split drainage from coal seam coal seam device of air.By the liquid carbon dioxide in the heating plate heating liquid storage pipe on liquid storage pipe, make liquid two
Aoxidize carbon gasification, high-pressure carbon dioxide is washed open after level pressure connects section, is acted on by discharging pipe on coal seam, is made coal seam fracturing anti-reflection.
Then using pipe joint and pumping pumping plant is evacuated, coal bed gas is come out by discharging pipe extraction.The present invention by faces end head plugging head, release
Put pipe, connector, level pressure shearing piece, liquid storage pipe, pumping pipe joint, pumping pumping plant composition.
The present invention solves the problems, such as existing fracturing drainage from coal seam coal bed gas device technique the technical scheme adopted is that connecting
Liquid injection hole is set in the tube wall of head, for irrigating liquid carbon dioxide into liquid storage pipe, meanwhile, set in the middle part of connector liquid injection hole
Steel ball one-way valve structures are put, for ensureing liquid carbon dioxide one-way flow in liquid injection hole, the liquid titanium dioxide in liquid storage pipe
Carbon will not flow outwardly.Wherein, for ease of the correct installation of connector, the outside printing arrow logo of connector, the head of arrow
Portion is that connector is connected with liquid storage pipe, and the afterbody of arrow is that connector is connected with release pipe；To ensure steel ball one-way valve structures
Normal work, the steel ball of steel ball one-way valve structures is towards the afterbody of arrow in connector liquid injection hole, and spring is towards the head of arrow.
To enable liquid carbon dioxide to be filled into liquid storage pipe, liquid injection hole is equally set in the tube wall of liquid storage pipe, meanwhile, in liquid storage pipe
Heating plate is set on inwall, for heating liquid carbon dioxide after energization, the outer wall of the energization binding post of heating plate in liquid storage pipe
On.In addition, level pressure is set to shear piece between connector and liquid storage pipe, when the liquid carbon dioxide in liquid storage pipe is heated, gas
Change, after expansion, high-pressure carbon dioxide can wash level pressure shearing piece open, be managed into release, and be released in coal seam, make coal seam fracturing
It is anti-reflection.Faces end head plugging head is used for the release pipe for blocking coal seam depths, and pumping pipe joint and pumping pumping plant are used for coal after the fracturing of coal seam
The extraction of layer gas.
The invention has the advantages that the structure of new fracturing drainage from coal seam coal seam device of air is relatively easy, dioxy is utilized
The time in change carbon fracturing coal seam is short, efficiency high.Meanwhile the process safety in carbon dioxide fracturing coal seam is reliable, can realize coal seam
The lasting exploit of gas.
Brief description of the drawings：
Fig. 1 is the whole structure figure of the present invention；
Fig. 2 is the overall installation diagram of the present invention, label title in Fig. 2：1st, faces end head plugging head, 2, release pipe, 3, connector,
4th, level pressure shearing piece, 5, liquid storage pipe, 6, pumping pipe joint, 7, pumping pumping plant, A and B represent part section respectively；
Fig. 3 is the faces end head plugging head part drawing of the present invention；
Fig. 4 is the release tube components figure of the present invention；
Fig. 5 is the connector part drawing of the present invention, label title in Fig. 5：1st, liquid injection hole, 2, steel ball, 3, spring, 4, arrow
Head；
Fig. 6 is the level pressure shearing piece part drawing of the present invention；
Fig. 7 is the liquid storage pipe part drawing of the present invention, label title in Fig. 7：1st, liquid injection hole, 2, heating plate, 3, binding post；
Fig. 8 is the exhaust tube joint part figure of the present invention；
Fig. 9 is the pumping pumping plant part drawing of the present invention；
Figure 10 is the implementing procedure figure of the present invention, each label implication in Figure 10：1~3 represents implementation steps 1~3 respectively.
Embodiment：
1st, as shown in step 1 in Figure 10, the level pressure shown in Fig. 6 is sheared to the connector (3) shown in piece (4) and Fig. 5 and connected
To liquid storage pipe (5) both sides shown in Fig. 7, and liquid carbon dioxide is injected into liquid storage pipe by liquid injection hole.
2nd, as shown in step 2 in Figure 10, the release pipe (2) shown in Fig. 4 is connected on connector (3), and by shown in Fig. 3
Faces end head plugging head (1) be connected to one release pipe (2) end；Then successively in the connection of the end of another release pipe (2)
The pumping pumping plant (7) shown in pumping pipe joint (6) and Fig. 9 shown in Fig. 8, then whole structure figure of the invention and installation diagram are as schemed
Shown in 1~2；Finally draw heating wires on liquid storage pipe (5) binding post, and will be connected since faces end head plugging head (1)
Release pipe (2), level pressure shearing piece (4), liquid storage pipe (5) are inserted in the drilling of tunnel coal side.
3rd, as shown in step 3 in Figure 10, after the heating plate electrified regulation of liquid storage pipe (5), liquid carbon dioxide gasification, liquid storage
The pressure increase in (5) is managed, when more than the intensity of level pressure shearing piece (4), level pressure shearing piece (4) is rushed to open, then high pressure dioxy
Change carbon from release pipe (2) to enter in coal seam, coal seam is produced numerous crackles and crack, with the anti-reflection coal seam of fracturing.Finally utilize lane
Pumping pipe joint (6) and pumping pumping plant (7) in road carry out coal bed gas extraction.
Claims (2)
1. a kind of new fracturing drainage from coal seam coal seam device of air, piece, connector and release pipe fracturing are sheared using liquid storage pipe, level pressure
Coal seam, using release pipe, connector, liquid storage pipe, pumping pipe joint and pumping pumping plant extraction coal bed gas, it is characterized in that：Connector
Tube wall in set liquid injection hole, for irrigating liquid carbon dioxide into liquid storage pipe, wherein, in described connector liquid injection hole
Portion sets steel ball one-way valve structures, and the liquid carbon dioxide for ensureing in liquid storage pipe will not flow outwardly.
2. fracturing drainage from coal seam coal seam device of air according to claim 1, it is characterized in that：Steel ball list in connector liquid injection hole
The afterbody of the arrow logo of printing on the outside of to the steel ball of valve arrangement towards connector, spring is towards the head of arrow, for ensureing
Liquid carbon dioxide one-way flow in liquid injection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928737.3A CN107461185A (en) | 2017-10-09 | 2017-10-09 | A kind of new fracturing drainage from coal seam coal seam device of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928737.3A CN107461185A (en) | 2017-10-09 | 2017-10-09 | A kind of new fracturing drainage from coal seam coal seam device of air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461185A true CN107461185A (en) | 2017-12-12 |
Family
ID=60554208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928737.3A Pending CN107461185A (en) | 2017-10-09 | 2017-10-09 | A kind of new fracturing drainage from coal seam coal seam device of air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461185A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459759A (en) * | 2020-11-23 | 2021-03-09 | 河南理工大学 | Coal mine underground coal seam fracturing coal seam gas extraction device |
| CN112832715A (en) * | 2021-01-07 | 2021-05-25 | 安徽理工大学 | An intelligent multiphase fracturing coupled carbon dioxide flooding coalbed methane extraction system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040157749A1 (en) * | 2003-02-11 | 2004-08-12 | Ely John W. | Method for reducing permeability restriction near wellbore |
| CN204419145U (en) * | 2014-12-29 | 2015-06-24 | 西安科技大学 | Coal seam liquid carbon dioxide fracturing device |
| CN204663509U (en) * | 2015-05-26 | 2015-09-23 | 河南理工大学 | Anti-reflection system is shaken in carbon dioxide coal seam |
| CN105003242A (en) * | 2015-08-19 | 2015-10-28 | 山西鸿海科贸有限公司 | Device capable of increasing fractures of coal-bed gas well |
| CN105221117A (en) * | 2015-11-11 | 2016-01-06 | 中国矿业大学(北京) | A kind of fracturing drainage from coal seam coal bed gas device and application process |
| CN106194244A (en) * | 2016-08-04 | 2016-12-07 | 重庆大学 | Gas drainage method of liquid-phase CO2 phase change fracturing in low-permeable coal seam and anti-permeability grid |
| CN106703773A (en) * | 2015-08-03 | 2017-05-24 | 中国矿业大学 | Liquid carbon dioxide bomb, propping agent blasting anti-reflection method and device |
| CN107130988A (en) * | 2017-07-10 | 2017-09-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt of liquid carbon dioxide explosion |
-
2017
- 2017-10-09 CN CN201710928737.3A patent/CN107461185A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040157749A1 (en) * | 2003-02-11 | 2004-08-12 | Ely John W. | Method for reducing permeability restriction near wellbore |
| CN204419145U (en) * | 2014-12-29 | 2015-06-24 | 西安科技大学 | Coal seam liquid carbon dioxide fracturing device |
| CN204663509U (en) * | 2015-05-26 | 2015-09-23 | 河南理工大学 | Anti-reflection system is shaken in carbon dioxide coal seam |
| CN106703773A (en) * | 2015-08-03 | 2017-05-24 | 中国矿业大学 | Liquid carbon dioxide bomb, propping agent blasting anti-reflection method and device |
| CN105003242A (en) * | 2015-08-19 | 2015-10-28 | 山西鸿海科贸有限公司 | Device capable of increasing fractures of coal-bed gas well |
| CN105221117A (en) * | 2015-11-11 | 2016-01-06 | 中国矿业大学(北京) | A kind of fracturing drainage from coal seam coal bed gas device and application process |
| CN106194244A (en) * | 2016-08-04 | 2016-12-07 | 重庆大学 | Gas drainage method of liquid-phase CO2 phase change fracturing in low-permeable coal seam and anti-permeability grid |
| CN107130988A (en) * | 2017-07-10 | 2017-09-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt of liquid carbon dioxide explosion |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459759A (en) * | 2020-11-23 | 2021-03-09 | 河南理工大学 | Coal mine underground coal seam fracturing coal seam gas extraction device |
| CN112459759B (en) * | 2020-11-23 | 2021-08-03 | 河南理工大学 | A device for extracting coalbed methane from fractured coal seams in coal mines |
| CN112832715A (en) * | 2021-01-07 | 2021-05-25 | 安徽理工大学 | An intelligent multiphase fracturing coupled carbon dioxide flooding coalbed methane extraction system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171212 |