ZA202005910B - Efficient water injection method for low-permeability coal seam - Google Patents

Efficient water injection method for low-permeability coal seam

Info

Publication number
ZA202005910B
ZA202005910B ZA2020/05910A ZA202005910A ZA202005910B ZA 202005910 B ZA202005910 B ZA 202005910B ZA 2020/05910 A ZA2020/05910 A ZA 2020/05910A ZA 202005910 A ZA202005910 A ZA 202005910A ZA 202005910 B ZA202005910 B ZA 202005910B
Authority
ZA
South Africa
Prior art keywords
low
water injection
coal seam
injection method
efficient water
Prior art date
Application number
ZA2020/05910A
Inventor
Xiangbao Meng
Yansong Zhang
Jinshe Chen
Wenzhou Du
Xiang Wang
Junfeng Wang
Qin Xiao
Xuesong Ma
Ke Yan
Zheng Wang
Original Assignee
Univ Shandong Science & Tech
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 Shandong Science & Tech filed Critical Univ Shandong Science & Tech
Publication of ZA202005910B publication Critical patent/ZA202005910B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
    • 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
    • E21B43/20—Displacing by water
    • 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
    • E21B43/261—Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
ZA2020/05910A 2018-03-27 2020-09-23 Efficient water injection method for low-permeability coal seam ZA202005910B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810255594.9A CN108661695A (en) 2018-03-27 2018-03-27 A kind of hypotonicity coal seam efficient water injection method
PCT/CN2018/095832 WO2019184148A1 (en) 2018-03-27 2018-07-16 Efficient water injection method for low-permeability coal seam

Publications (1)

Publication Number Publication Date
ZA202005910B true ZA202005910B (en) 2020-12-23

Family

ID=63782547

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2020/05910A ZA202005910B (en) 2018-03-27 2020-09-23 Efficient water injection method for low-permeability coal seam

Country Status (3)

Country Link
CN (1) CN108661695A (en)
WO (1) WO2019184148A1 (en)
ZA (1) ZA202005910B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113482697A (en) * 2021-08-17 2021-10-08 华能铜川照金煤电有限公司西川煤矿分公司 Nitrogen injection fire protection device and measure for goaf during fully mechanized mining face withdrawal period
CN114198141B (en) * 2022-02-16 2022-06-07 中煤昔阳能源有限责任公司白羊岭煤矿 Fully-mechanized coal mining face short borehole rapid pressure relief extraction method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391327A (en) * 1981-05-11 1983-07-05 Conoco Inc. Solvent foam stimulation of coal degasification well
CN103334790B (en) * 2013-07-23 2015-10-28 辽宁工程技术大学 Based on the roof Advance presplitting method of high pressure pneumatic component
CN104234739B (en) * 2014-08-15 2016-03-30 中国矿业大学 A kind of gas blastingfracture coal body enhanced gas extraction method in boring
CN105781549B (en) * 2016-04-25 2019-03-12 重庆科技学院 A kind of external pressure combines the device and method of shot rock with internal water pocket
CN106930744B (en) * 2017-05-08 2023-04-07 河南理工大学 Millisecond multistage directional blasting dry ice cracking method and blasting tube

Also Published As

Publication number Publication date
WO2019184148A1 (en) 2019-10-03
CN108661695A (en) 2018-10-16

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