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
Other languages
English (en)
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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • General Engineering & Computer Science (AREA)
  • Operations Research (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (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 (zh) 2018-10-24 2018-10-24 一种多煤层独立含气系统控压单泵排采装置及排采方法
PCT/CN2019/085482 WO2020082716A1 (zh) 2018-10-24 2019-05-05 一种多煤层独立含气系统控压单泵排采装置及排采方法

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 (ja)
KR (1) KR102366868B1 (ja)
CN (1) CN109458161A (ja)
AU (1) AU2019264691A1 (ja)
WO (1) WO2020082716A1 (ja)
ZA (1) ZA202000092B (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109458161A (zh) * 2018-10-24 2019-03-12 中国矿业大学 一种多煤层独立含气系统控压单泵排采装置及排采方法
CN109973058B (zh) * 2019-04-17 2021-04-30 中国矿业大学 一种双层叠置含煤层气系统单井排采装置及排采方法
CN110714739B (zh) * 2019-11-25 2021-09-24 中国矿业大学 一种双层叠置含煤层气系统单井排采地面装置
CN114718512B (zh) * 2021-01-05 2023-08-22 中国石油天然气股份有限公司 煤层气降压排采模拟实验装置和方法
CN112832716A (zh) * 2021-01-15 2021-05-25 中煤科工集团西安研究院有限公司 一种双煤层孔眼限流分层控水煤层气井排采方法及装置
CN114856494B (zh) * 2021-02-04 2024-03-26 中国石油天然气股份有限公司 煤层气合采井气水产出剖面测试方法
CN113309491B (zh) * 2021-06-21 2022-04-26 中国地质大学（北京） 一种多煤层合采的高效合采装置及合采方法
CN114320237B (zh) * 2021-12-20 2023-08-15 中煤地质集团有限公司 一种新型复合煤成气藏煤层气多层合采方法

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 (zh) * 2011-12-02 2014-07-30 河南理工大学 多煤层发育区合层排采设备
CN103061724B (zh) * 2013-01-21 2016-06-01 中煤科工集团西安研究院有限公司 面向易吐粉吐砂双煤层的分层控压联合排采装置
CN103089204B (zh) * 2013-01-21 2015-04-08 中煤科工集团西安研究院有限公司 双煤层分层控压联合排采装置
CN203515494U (zh) * 2013-09-26 2014-04-02 中煤科工集团西安研究院有限公司 一种双套管单泵分层控压合层排采设备
CN103527148B (zh) * 2013-09-26 2015-02-11 中煤科工集团西安研究院有限公司 一种双套管单泵分层控压合层排采技术及装置
CN104295292B (zh) * 2014-08-14 2016-10-26 中国矿业大学 多层叠置煤层气系统开采井设计方法
CN105756628B (zh) * 2014-12-18 2018-06-19 思达斯易能源技术(集团)有限公司 一种控水限流装置
CN104912522B (zh) * 2015-05-11 2017-06-23 中国矿业大学 一种高应力区煤层气井合层排采装置及工艺
CN105649578B (zh) * 2016-01-29 2018-11-13 西南石油大学 煤层气直井双层分压合采方法及其装置
CN106121598A (zh) * 2016-06-30 2016-11-16 中国石油化工股份有限公司 油井分层产液测控实验装置
CN109458161A (zh) * 2018-10-24 2019-03-12 中国矿业大学 一种多煤层独立含气系统控压单泵排采装置及排采方法

Also Published As

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

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