CN106761585A - A kind of Abandoned golfs coal bed gas limit pumping method - Google Patents
A kind of Abandoned golfs coal bed gas limit pumping method Download PDFInfo
- Publication number
- CN106761585A CN106761585A CN201710105237.XA CN201710105237A CN106761585A CN 106761585 A CN106761585 A CN 106761585A CN 201710105237 A CN201710105237 A CN 201710105237A CN 106761585 A CN106761585 A CN 106761585A
- Authority
- CN
- China
- Prior art keywords
- goaf
- bed gas
- coal bed
- valve
- drainage tube
- 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 33
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005086 pumping Methods 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 20
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 10
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000005065 mining Methods 0.000 claims abstract description 4
- 239000008393 encapsulating agent Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 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
- E21B43/006—Production of coal-bed methane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G5/00—Storing fluids in natural or artificial cavities or chambers in the earth
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
Landscapes
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of Abandoned golfs coal bed gas limit pumping method, a surface drilling is constructed until goaf bottom at interval of 100 150m along the middle part in goaf coal mining direction by ground, and to being sequentially inserted into air injection pipe and drainage tube in each surface drilling, wherein the bottom of air injection pipe is located at goaf bottom, and the bottom of drainage tube is located at the coboundary of goaf.From air injection pipe to injecting carbon dioxide in goaf, due to the density of the density more than coal bed gas of carbon dioxide, coal bed gas is driven to the coboundary of goaf and is extracted out through drainage tube.The present invention can carry out extraction to Abandoned golfs coal bed gas to greatest extent, and GHG carbon dioxide can be sealed up for safekeeping.
Description
Technical field
The present invention relates to a kind of Abandoned golfs coal bed gas limit pumping method, belong to coal mine gob residual coal bed gas and take out
Adopt technical field.
Background technology
The coal mining of the long-term extensive high intensity of China generates residual in substantial amounts of Abandoned golfs, Abandoned golfs
Substantial amounts of coal bed gas, coal bed gas is a kind of clean energy resource, therefore carries out to the coal bed gas in Abandoned golfs extraction and utilize
It is most important.At present, surface drilling is one of main method of extraction Abandoned golfs coal bed gas, but this method can not be thorough
By coal bed gas extraction out, extracting result is undesirable on ground, so urgently one kind can farthest extraction Abandoned golfs coal
The method of layer gas.
The content of the invention
It is an object of the invention to provide a kind of Abandoned golfs coal bed gas limit pumping method, and realize to titanium dioxide
The Abandoned golfs of carbon are sealed up for safekeeping.
Technical scheme：A kind of Abandoned golfs coal bed gas limit pumping method, is mined by ground along goaf
A surface drilling is constructed until goaf bottom at interval of 100-150m in the middle part in direction；One is inserted into each surface drilling
Root upper end is provided with the air injection pipe of the first valve to goaf bottom, is inserted into a top then to each surface drilling and is provided with
At the drainage tube of two valves to goaf coboundary, and the aperture of surface drilling is blocked with encapsulant；Open the first valve and
Second valve, through air injection pipe to injecting carbon dioxide in goaf, due to the density of the density more than coal bed gas of carbon dioxide, will
Coal bed gas is driven to the coboundary of goaf and is extracted out through drainage tube；When the concentration of coal bed gas in drainage tube is less than 16%, the is closed
One valve and the second valve.
It is of the invention to have the advantages that：
（1）Carbon dioxide coal bed gas is driven to the coboundary of goaf after can farthest by coal bed gas extraction out；
（2）Substantial amounts of carbon dioxide can be sealed up for safekeeping, alleviate greenhouse effects；
（3）Injecting carbon dioxide is carried out simultaneously with extraction coal bed gas, can shorten the extraction time.
Brief description of the drawings
Fig. 1 is Abandoned golfs surface drilling arrangement schematic diagram
Fig. 2 is A-A profiles in Fig. 1
In figure：1- ground, 2- surface drillings, 3- goafs bottom, the valves of 4- first, 5- air injection pipes, the valves of 6- second, 7- extractions
Pipe, 8- goafs coboundary, 9- encapsulants, 10- goafs.
Specific embodiment
Example of the invention is further described below in conjunction with the accompanying drawings：
A kind of Abandoned golfs coal bed gas limit pumping method, comprises the steps：
A. by ground（1）Along the middle part in goaf coal mining direction at interval of 100 ~ 150m, one surface drilling of construction（2）Until adopting
Dead zone bottom（3）；
B. to each surface drilling（2）It is inserted into a upper end and is provided with the first valve（4）Air injection pipe（5）To goaf bottom
（3）, then to each surface drilling（2）It is inserted into a top and is provided with the second valve（6）Drainage tube（7）To goaf top
Boundary（8）Place, and use encapsulant（9）Closure surface drilling（2）Aperture；
C. the first valve is opened（4）With the second valve（6）, through air injection pipe（5）To goaf（10）Interior injecting carbon dioxide, while
By drainage tube（7）Extraction goaf（10）In coal bed gas；
D. when the concentration of coal bed gas in drainage tube is less than 16%, the first valve is closed（4）With the second valve（6）.
The encapsulant（9）Sealed using cement mortar.
Claims (1)
1. a kind of Abandoned golfs coal bed gas limit pumping method, it is characterised in that comprise the steps：
A. by ground（1）Along the middle part in goaf coal mining direction at interval of 100-150m one surface drilling of construction（2）Until adopting
Dead zone bottom（3）；
B. to each surface drilling（2）It is inserted into a upper end and is provided with the first valve（4）Air injection pipe（5）To goaf bottom
（3）, then to each surface drilling（2）It is inserted into a top and is provided with the second valve（6）Drainage tube（7）To goaf top
Boundary（8）Place, and use encapsulant（9）Closure surface drilling（2）Aperture；
C. the first valve is opened（4）With the second valve（6）, through air injection pipe（5）To goaf（10）Interior injecting carbon dioxide, while
By drainage tube（7）Extraction goaf（10）In coal bed gas；
D. when the concentration of coal bed gas in drainage tube is less than 16%, the first valve and the second valve are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105237.XA CN106761585A (en) | 2017-02-25 | 2017-02-25 | A kind of Abandoned golfs coal bed gas limit pumping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105237.XA CN106761585A (en) | 2017-02-25 | 2017-02-25 | A kind of Abandoned golfs coal bed gas limit pumping method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106761585A true CN106761585A (en) | 2017-05-31 |
Family
ID=58959415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105237.XA Pending CN106761585A (en) | 2017-02-25 | 2017-02-25 | A kind of Abandoned golfs coal bed gas limit pumping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761585A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608022A (en) * | 2019-08-28 | 2019-12-24 | 中联煤层气有限责任公司 | Carbon dioxide landfill method for increasing yield of coal bed gas reservoir |
| CN113431535A (en) * | 2021-08-11 | 2021-09-24 | 太原理工大学 | Method for carbon sequestration by using in-situ pyrolyzed organic ore bed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240715A (en) * | 2008-01-24 | 2008-08-13 | 淮北矿业（集团）有限责任公司 | One well three-purpose mash gas harnessing method for ground well drilling and ground well drilling |
| US20090255670A1 (en) * | 2005-08-10 | 2009-10-15 | The Kansai Electric Power Co., Inc. | Method of Monitoring Underground Diffusion of Carbon Dioxide |
| CN102094670A (en) * | 2010-12-17 | 2011-06-15 | 中国神华能源股份有限公司 | Method for replacing mine goaf gas with carbon dioxide |
| CN102587958A (en) * | 2012-03-09 | 2012-07-18 | 山西蓝焰煤层气工程研究有限责任公司 | Method for mining coal seam gas |
| CN104314609A (en) * | 2014-09-28 | 2015-01-28 | 太原理工大学 | Alternate cooling and heating yield increasing method for gas extraction bored well |
-
2017
- 2017-02-25 CN CN201710105237.XA patent/CN106761585A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090255670A1 (en) * | 2005-08-10 | 2009-10-15 | The Kansai Electric Power Co., Inc. | Method of Monitoring Underground Diffusion of Carbon Dioxide |
| CN101240715A (en) * | 2008-01-24 | 2008-08-13 | 淮北矿业（集团）有限责任公司 | One well three-purpose mash gas harnessing method for ground well drilling and ground well drilling |
| CN102094670A (en) * | 2010-12-17 | 2011-06-15 | 中国神华能源股份有限公司 | Method for replacing mine goaf gas with carbon dioxide |
| CN102587958A (en) * | 2012-03-09 | 2012-07-18 | 山西蓝焰煤层气工程研究有限责任公司 | Method for mining coal seam gas |
| CN104314609A (en) * | 2014-09-28 | 2015-01-28 | 太原理工大学 | Alternate cooling and heating yield increasing method for gas extraction bored well |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608022A (en) * | 2019-08-28 | 2019-12-24 | 中联煤层气有限责任公司 | Carbon dioxide landfill method for increasing yield of coal bed gas reservoir |
| CN113431535A (en) * | 2021-08-11 | 2021-09-24 | 太原理工大学 | Method for carbon sequestration by using in-situ pyrolyzed organic ore bed |
| CN113431535B (en) * | 2021-08-11 | 2022-04-15 | 太原理工大学 | Method for carbon sequestration by using in-situ pyrolyzed organic ore bed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104695908B (en) | A kind of method that old dead zone in ground well drainage colliery remains coal bed gas | |
| CN109505565B (en) | Method for extracting coal seam gas by water injection and gas injection alternating displacement | |
| CN102942006B (en) | The method of sequestration of carbon dioxide | |
| CN104314607B (en) | A kind of multistage improves the method for coal bed drilling gas extraction concentration | |
| CN102720528B (en) | Underground coal mine repeating pulsation hydrofracture strengthened gas extracting method | |
| CN101915072B (en) | Method for extracting coal bed gas in stable mining region by ground well drilling | |
| CN106437632B (en) | A kind of old goaf gas pumping method in colliery | |
| CN105804786B (en) | A kind of weak seam bottom plate layer-through drilling pressure rushes anti-reflection method | |
| EP2891763A3 (en) | High-rate injection screen with checkable ports | |
| CN104213896A (en) | Fracturing and cavern integrated completion method for coal-bed gas reservoir | |
| CN105134286B (en) | L-type well goaf gas pumping method | |
| CN104514535A (en) | Same-well injection-production thermal oil production pipe column for vertical well and oil production method thereof | |
| CN104989339A (en) | Old goaf coalbed methane extracting and mining system and method | |
| WO2020151207A1 (en) | Coordinative extraction and pressure relief method for high confined water high gas coal seam group | |
| CN106761584A (en) | Abandoned mine goaf coal bed gas ground discharge and mining method under a kind of aqueous conditions | |
| CN104696006B (en) | Ground drilling penetrates the method for abandoned coal pillar extraction multilamellar old dead zone remnants coal bed gas | |
| CN106930730A (en) | A kind of pumping method of abandoned mine goaf coal bed gas | |
| CN105927191A (en) | Method for combined mining of coal seam gas of cutter column type old goaf and lower coal seam | |
| CN104329114B (en) | A kind of method of down-hole drilling batch (-type) mash gas extraction | |
| CN106761585A (en) | A kind of Abandoned golfs coal bed gas limit pumping method | |
| CN104963674A (en) | Low permeability coal bed liquid nitrogen freeze thawing cracking permeability increasing method | |
| CN106014345B (en) | A kind of lower part caving method exploits the pumping method for the compound old dead zone coal bed gas to be formed | |
| CN104612649A (en) | Method and device for fracturing and permeability and yield increasing of coal-bed gas well of low-pressure and low permeability reservoir by means of chemical permeability increasing | |
| CN105545264B (en) | A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string | |
| CN115492557B (en) | Deep non-recoverable coal seam CO 2 Sealing and storing device and method for extracting coalbed methane under negative pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |