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RU96106644A - METHOD FOR DEGRASING COAL LAYERS - Google Patents

METHOD FOR DEGRASING COAL LAYERS

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Publication number
RU96106644A
RU96106644A RU96106644/03A RU96106644A RU96106644A RU 96106644 A RU96106644 A RU 96106644A RU 96106644/03 A RU96106644/03 A RU 96106644/03A RU 96106644 A RU96106644 A RU 96106644A RU 96106644 A RU96106644 A RU 96106644A
Authority
RU
Russia
Prior art keywords
fractures
hydraulic
coal
degrasing
rocks
Prior art date
Application number
RU96106644/03A
Other languages
Russian (ru)
Other versions
RU2117764C1 (en
Inventor
Г.Я. Полевщиков
С.К. Тризно
Original Assignee
Институт угля СО РАН
Filing date
Publication date
Application filed by Институт угля СО РАН filed Critical Институт угля СО РАН
Priority to RU96106644A priority Critical patent/RU2117764C1/en
Priority claimed from RU96106644A external-priority patent/RU2117764C1/en
Publication of RU96106644A publication Critical patent/RU96106644A/en
Application granted granted Critical
Publication of RU2117764C1 publication Critical patent/RU2117764C1/en

Links

Claims (2)

1. Способ дегазации угольных пластов, включающий бурение скважины, ориентированный поинтервальный гидроразрыв в направлении от забоя к устью скважины, удаление рабочей жидкости и отсос газа, отличающийся тем, что скважинами перебуривают дегазируемый массив, определяют прочность на растяжение слоев пород вмешающих пласты угля, а трещины гидроразрыва создают в породах почвы и кровли каждого пласта, при этом места заложения трещин гидроразрыва выбирают из условия
Figure 00000001

где σp - прочность пород на растяжение, МПа;
i - порядковый номер слоя, по которому производят гидроразрыв, в направлении от пласта угля.1. The method of degassing coal seams, including drilling a well, oriented interval hydraulic fracturing in the direction from the bottom to the wellhead, removal of the working fluid and gas suction, characterized in that the degassed mass is drilled by the wells, the tensile strength of the rock layers interfering the coal seams is determined, and the cracks hydraulic fractures are created in the rocks of the soil and roof of each layer, while the location of the fractures of hydraulic fractures is chosen from the condition
Figure 00000001

where σ p is the tensile strength of the rocks, MPa;
i is the serial number of the layer by which hydraulic fracturing is carried out, in the direction from the coal seam. 2. Способ по п. 1, отличающийся тем, что интервалы гидроразрыва увеличивают в направлении от угольного пласта. 2. The method according to p. 1, characterized in that the fracturing intervals are increased in the direction from the coal seam.
RU96106644A 1996-04-08 1996-04-08 Method for degassing of coal seams RU2117764C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96106644A RU2117764C1 (en) 1996-04-08 1996-04-08 Method for degassing of coal seams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96106644A RU2117764C1 (en) 1996-04-08 1996-04-08 Method for degassing of coal seams

Publications (2)

Publication Number Publication Date
RU96106644A true RU96106644A (en) 1998-07-20
RU2117764C1 RU2117764C1 (en) 1998-08-20

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Family Applications (1)

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Country Status (1)

Country Link
RU (1) RU2117764C1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7845413B2 (en) 2006-06-02 2010-12-07 Schlumberger Technology Corporation Method of pumping an oilfield fluid and split stream oilfield pumping systems
RU2447290C1 (en) * 2010-11-11 2012-04-10 Закрытое акционерное общество "Инконко" Method for degassing of coal beds
CN102094671A (en) * 2011-02-27 2011-06-15 山东新矿赵官能源有限责任公司 Three-dimensional gas extraction method for coal seams with low-permeability and low possibility of gas extraction
RU2472939C1 (en) * 2011-06-22 2013-01-20 Учреждение Российской академии наук Институт горного дела Сибирского отделения РАН Coal bed degassing method
CN102392679A (en) * 2011-11-21 2012-03-28 大同煤矿集团有限责任公司 Comprehensive and integrative gas drainage method
CN102619552B (en) * 2012-02-24 2015-07-01 煤炭科学研究总院沈阳研究院 Directional hydraulic pressing penetration, permeability increase and outburst elimination method of guide groove
CN103670498A (en) * 2013-12-25 2014-03-26 安徽浩惠能源科技有限公司 Pre-pumping outburst prevention technology utilizing drill hole instead of stone drift
CN105240044B (en) * 2014-07-11 2017-10-31 山东科技大学 A kind of method that utilization explosion prevents and treats coal and gas prominent
CN105064920B (en) * 2015-08-05 2017-07-18 河南能源化工集团研究院有限公司 The hypotonic weak seam punching release extraction simulation experiment method of multi- scenarios method
CN106869894B (en) * 2017-03-21 2019-07-02 阳泉煤业（集团）有限责任公司 Weak seam top plate concordant rock long drilled holes pump more coordinates pressure break anti-reflection method
CN109356641A (en) * 2018-10-25 2019-02-19 四川大学 A gas extraction method for fully mechanized caving face with soft surrounding rock
CN110552735B (en) * 2019-09-27 2021-04-06 宁夏煤炭勘察工程有限公司 Method and system for combined extraction of coal seam gas and gas near goaf
CN114458373B (en) * 2022-01-24 2024-11-05 内蒙古科技大学 A method for extracting and depressurizing gas by ground drilling
CN116291438B (en) * 2023-02-21 2023-09-29 河南理工大学 Device for preventing and controlling composite coal and rock dynamic disasters by means of transverse and longitudinal cutting of ultrahigh-pressure water jet

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