ZA202000092B - Pressure-controlled single-pump drainage device and method for independent gas-bearing systems in multiple coal seams - Google Patents

Pressure-controlled single-pump drainage device and method for independent gas-bearing systems in multiple coal seams

Info

Publication number
ZA202000092B
ZA202000092B ZA2020/00092A ZA202000092A ZA202000092B ZA 202000092 B ZA202000092 B ZA 202000092B ZA 2020/00092 A ZA2020/00092 A ZA 2020/00092A ZA 202000092 A ZA202000092 A ZA 202000092A ZA 202000092 B ZA202000092 B ZA 202000092B
Authority
ZA
South Africa
Prior art keywords
pressure
drainage device
bearing systems
pump drainage
coal seams
Prior art date
Application number
ZA2020/00092A
Inventor
Wu Caifang
Fang Xiaojie
Liu Ningning
Jiang Xiuming
Zhang Shasha
Original Assignee
Univ China Mining
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ China Mining filed Critical Univ China Mining
Publication of ZA202000092B publication Critical patent/ZA202000092B/en

Links

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
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in 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
    • E21B47/00—Survey of boreholes or 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • General Engineering & Computer Science (AREA)
  • Operations Research (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Pipeline Systems (AREA)
ZA2020/00092A 2018-10-24 2020-01-07 Pressure-controlled single-pump drainage device and method for independent gas-bearing systems in multiple coal seams ZA202000092B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811240197.0A CN109458161A (en) 2018-10-24 2018-10-24 A kind of multiple seam independence gas system pressure control list pump mining device and discharge and mining method
PCT/CN2019/085482 WO2020082716A1 (en) 2018-10-24 2019-05-05 Multi-seam independent gas-bearing system pressure control and single-pump production device and production method

Publications (1)

Publication Number Publication Date
ZA202000092B true ZA202000092B (en) 2021-07-28

Family

ID=65608235

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2020/00092A ZA202000092B (en) 2018-10-24 2020-01-07 Pressure-controlled single-pump drainage device and method for independent gas-bearing systems in multiple coal seams

Country Status (6)

Country Link
JP (1) JP6838172B2 (en)
KR (1) KR102366868B1 (en)
CN (1) CN109458161A (en)
AU (1) AU2019264691A1 (en)
WO (1) WO2020082716A1 (en)
ZA (1) ZA202000092B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109458161A (en) * 2018-10-24 2019-03-12 中国矿业大学 A kind of multiple seam independence gas system pressure control list pump mining device and discharge and mining method
CN109973058B (en) * 2019-04-17 2021-04-30 中国矿业大学 Single-well drainage and production device and drainage and production method of double-layer superposed coal-bed-gas-containing system
CN110714739B (en) * 2019-11-25 2021-09-24 中国矿业大学 Double-layer superposed single-well drainage and production ground device of coal bed gas-containing system
CN114718512B (en) * 2021-01-05 2023-08-22 中国石油天然气股份有限公司 Coalbed methane depressurization drainage simulation experiment device and method
CN112832716A (en) * 2021-01-15 2021-05-25 中煤科工集团西安研究院有限公司 Drainage and mining method and device for double-coal-bed-hole flow-limiting layered water-control coal-bed gas well
CN114856494B (en) * 2021-02-04 2024-03-26 中国石油天然气股份有限公司 Method for testing gas and water production profile of coal bed gas combined well
CN113309491B (en) * 2021-06-21 2022-04-26 中国地质大学（北京） Efficient combined mining device and method for combined mining of multiple coal seams
CN114320237B (en) * 2021-12-20 2023-08-15 中煤地质集团有限公司 Novel multi-layer combined mining method for coal bed gas of composite coal gas reservoir

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010800A (en) * 1976-03-08 1977-03-08 In Situ Technology, Inc. Producing thin seams of coal in situ
US7735559B2 (en) * 2008-04-21 2010-06-15 Schlumberger Technology Corporation System and method to facilitate treatment and production in a wellbore
CN102434135B (en) * 2011-12-02 2014-07-30 河南理工大学 Multi-layer discharge and mining device for multiple seam developed area
CN103089204B (en) * 2013-01-21 2015-04-08 中煤科工集团西安研究院有限公司 Double-coal-bed layered pressure control device combining coal discharging and coal mining
CN103061724B (en) * 2013-01-21 2016-06-01 中煤科工集团西安研究院有限公司 Towards the layering pressure control associating mining device easily telling powder and telling the two coal seam of sand
CN203515494U (en) * 2013-09-26 2014-04-02 中煤科工集团西安研究院有限公司 Double-sleeve single-pump layering pressure controlling and layer combining water drainage and gas production equipment
CN103527148B (en) * 2013-09-26 2015-02-11 中煤科工集团西安研究院有限公司 Technology and device for controlling pressure in layered mode and discharging and extracting oil in layer combined mode through double bushes and single pump
CN104295292B (en) * 2014-08-14 2016-10-26 中国矿业大学 Multiple superposed coalbed methane system recovery well method for designing
CN105756628B (en) * 2014-12-18 2018-06-19 思达斯易能源技术(集团)有限公司 A kind of control water current-limiting apparatus
CN104912522B (en) * 2015-05-11 2017-06-23 中国矿业大学 A kind of region of high stress coal bed gas well closes layer mining device and technique
CN105649578B (en) * 2016-01-29 2018-11-13 西南石油大学 Coal bed gas straight well bilayer separate pressure production method and its device
CN106121598A (en) * 2016-06-30 2016-11-16 中国石油化工股份有限公司 Oil well delamination production fluid measure and control test device
CN109458161A (en) * 2018-10-24 2019-03-12 中国矿业大学 A kind of multiple seam independence gas system pressure control list pump mining device and discharge and mining method

Also Published As

Publication number Publication date
JP2021503052A (en) 2021-02-04
KR20200047448A (en) 2020-05-07
CN109458161A (en) 2019-03-12
WO2020082716A1 (en) 2020-04-30
JP6838172B2 (en) 2021-03-03
AU2019264691A1 (en) 2020-05-14
KR102366868B1 (en) 2022-02-24

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