RU2001124655A - Method for increasing coal bed methane recovery - Google Patents

Method for increasing coal bed methane recovery

Info

Publication number
RU2001124655A
RU2001124655A RU2001124655/03A RU2001124655A RU2001124655A RU 2001124655 A RU2001124655 A RU 2001124655A RU 2001124655/03 A RU2001124655/03 A RU 2001124655/03A RU 2001124655 A RU2001124655 A RU 2001124655A RU 2001124655 A RU2001124655 A RU 2001124655A
Authority
RU
Russia
Prior art keywords
combustion
collector
along
reservoir
increasing
Prior art date
Application number
RU2001124655/03A
Other languages
Russian (ru)
Other versions
RU2209984C2 (en
Inventor
Александр Мирославович Карасевич
Ефим Вульфович Крейнин
Николай Миронович Сторонский
Original Assignee
Дочернее открытое акционерное общество "Промгаз" Открытого акционерного общества "Газпром"
Filing date
Publication date
Application filed by Дочернее открытое акционерное общество "Промгаз" Открытого акционерного общества "Газпром" filed Critical Дочернее открытое акционерное общество "Промгаз" Открытого акционерного общества "Газпром"
Priority to RU2001124655A priority Critical patent/RU2209984C2/en
Priority claimed from RU2001124655A external-priority patent/RU2209984C2/en
Publication of RU2001124655A publication Critical patent/RU2001124655A/en
Application granted granted Critical
Publication of RU2209984C2 publication Critical patent/RU2209984C2/en

Links

Claims (3)

1. Способ увеличения метаноотдачи угольного пласта, заключающийся в бурении с поверхности на пласт направленных и вертикальных скважин, соединении их методом гидроразрыва, розжиге угля в одной из скважин, противоточном перемещении очага горения по искусственному коллектору в пласте и, наконец, извлечении из термически проработанного коллектора повышенных дебитов воды и метана, отличающийся тем, что противоточное перемещение очага горения по искусственному коллектору в виде бурового канала или щели гидроразрыва осуществляют только на воздушном дутье и его расхода от 500 до 1600 м3/ч.1. A method of increasing the methane yield of a coal seam, which consists in drilling directed and vertical wells from the surface onto the seam, combining them using hydraulic fracturing, igniting the coal in one of the wells, countercurrently moving the combustion center through an artificial reservoir in the reservoir, and finally removing it from a thermally developed reservoir increased flow rates of water and methane, characterized in that the countercurrent movement of the combustion site along the artificial reservoir in the form of a drilling channel or hydraulic fracture is carried out only on air blast and its flow rate from 500 to 1600 m 3 / h. 2. Способ увеличения метаноотдачи угольного пласта по п.1, отличающийся тем, что контроль за местоположением очага горения в ходе его перемещения вдоль искусственного коллектора осуществляют по зависимости2. The method of increasing the methane recovery of a coal seam according to claim 1, characterized in that the location of the combustion zone during its movement along the artificial collector is controlled according to I=Wt,I = Wt где I - длина термически проработанной части коллектора, м;where I is the length of the thermally developed part of the collector, m; t - продолжительность термической проработки коллектора, ч;t is the duration of the thermal study of the collector, h; W - скорость противоточного перемещения очага горения м/ч (определяется по кривой зависимости скорости противоточного перемещения очага горения от расхода воздушного дутья).W is the speed of the countercurrent movement of the combustion site m / h (determined by the curve of the dependence of the speed of the countercurrent movement of the combustion site on the flow rate of air blast). 3. Способ увеличения метаноотдачи угольного пласта по п.1, отличающийся тем, что степень выгазования угля вдоль термически прорабатываемой части коллектора (величину его поперечного сечения) регулируют путем выбора расхода воздушного дутья по восходящей или нисходящей ветвям зависимости скорости противоточного перемещения очага горения от расхода воздушного дутья.3. The method for increasing the methane yield of a coal seam according to claim 1, characterized in that the degree of degassing of coal along the heat-treated part of the collector (its cross section) is controlled by selecting the flow rate of air blast along the ascending or descending branches of the dependence of the speed of countercurrent movement of the combustion focus on air flow blast.
RU2001124655A 2001-09-06 2001-09-06 Method of increase of methane recovery from coal seam RU2209984C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001124655A RU2209984C2 (en) 2001-09-06 2001-09-06 Method of increase of methane recovery from coal seam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001124655A RU2209984C2 (en) 2001-09-06 2001-09-06 Method of increase of methane recovery from coal seam

Publications (2)

Publication Number Publication Date
RU2001124655A true RU2001124655A (en) 2003-07-20
RU2209984C2 RU2209984C2 (en) 2003-08-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001124655A RU2209984C2 (en) 2001-09-06 2001-09-06 Method of increase of methane recovery from coal seam

Country Status (1)

Country Link
RU (1) RU2209984C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195466B (en) * 2013-03-30 2015-08-19 重庆大学 A kind of directed hydraulic pressure demolition improves the method for gas permeability of coal seam

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