RU2008111652A - METHOD FOR UNDERGROUND GASIFICATION OF SLIDING AND INCLINED COAL SEAMS - Google Patents
METHOD FOR UNDERGROUND GASIFICATION OF SLIDING AND INCLINED COAL SEAMS Download PDFInfo
- Publication number
- RU2008111652A RU2008111652A RU2008111652/03A RU2008111652A RU2008111652A RU 2008111652 A RU2008111652 A RU 2008111652A RU 2008111652/03 A RU2008111652/03 A RU 2008111652/03A RU 2008111652 A RU2008111652 A RU 2008111652A RU 2008111652 A RU2008111652 A RU 2008111652A
- Authority
- RU
- Russia
- Prior art keywords
- wells
- coal
- generator gas
- blasting
- drilled
- Prior art date
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- 239000003245 coal Substances 0.000 title claims abstract 9
- 238000000034 method Methods 0.000 title claims abstract 7
- 238000002309 gasification Methods 0.000 title claims abstract 5
- 238000005422 blasting Methods 0.000 claims abstract 4
- 238000007872 degassing Methods 0.000 claims abstract 2
- 238000005553 drilling Methods 0.000 claims abstract 2
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- Manufacture Of Iron (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
1. Способ подземной газификации пологих и наклонных угольных пластов, включающий бурение скважин, розжиг огневого забоя и отвод генераторного газа, отличающийся тем, что с поверхности бурят на угольный пласт вертикальные скважины, причем сначала бурят центральную скважину и расположенные вокруг нее в пределах радиуса гидроразрыва угольного пласта остальные скважины и осуществляют через центральную скважину кольцевой ориентированный гидроразрыв пласта и розжиг огневого забоя, а через остальные скважины отводят генераторный газ, причем по мере газификации за ними бурят в пределах радиусов гидроразрыва очередной ряд скважин и осуществляют через них кольцевые ориентированные гидроразрывы пласта с последующим отводом по этим скважинам генераторного газа, а предыдущий ряд газоотводящих скважин используют для дутья. ! 2. Способ по п.1, отличающийся тем, что при переходе на новые дутьевые скважины ранее используемые для дутья скважины тампонируют. ! 3. Способ по п.1, отличающийся тем, что осуществляют попутную дегазацию подработанного при газификации угольного пласта вышележащего углепородного массива.1. The method of underground gasification of shallow and inclined coal seams, including drilling, ignition of the fire face and removal of generator gas, characterized in that vertical wells are drilled from the surface to the coal seam, and first the central well is drilled and located around it within the radius of coal fracturing the rest of the well and carry out through the central well an annular oriented hydraulic fracturing and ignition of the fire face, and the generator gas is diverted through the remaining wells, m as they gasify, they drill another series of wells within the limits of hydraulic fracturing radii and carry out oriented annular hydraulic fractures through them with subsequent removal of generator gas through these wells, and the previous series of gas discharge wells are used for blasting. ! 2. The method according to claim 1, characterized in that when switching to new blast wells previously used for blasting, the wells are plugged. ! 3. The method according to claim 1, characterized in that the associated degassing of the overlying coal-bed mass produced during gasification of a coal seam is carried out.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008111652/03A RU2378506C2 (en) | 2008-03-26 | 2008-03-26 | Method of underground gasification of flat and inclined coal benches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008111652/03A RU2378506C2 (en) | 2008-03-26 | 2008-03-26 | Method of underground gasification of flat and inclined coal benches |
Publications (2)
Publication Number | Publication Date |
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RU2008111652A true RU2008111652A (en) | 2009-10-10 |
RU2378506C2 RU2378506C2 (en) | 2010-01-10 |
Family
ID=41260167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2008111652/03A RU2378506C2 (en) | 2008-03-26 | 2008-03-26 | Method of underground gasification of flat and inclined coal benches |
Country Status (1)
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RU (1) | RU2378506C2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9435184B2 (en) | 2012-06-28 | 2016-09-06 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
US9428978B2 (en) | 2012-06-28 | 2016-08-30 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
RU2752179C1 (en) * | 2021-01-26 | 2021-07-23 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method for development of oil deposits by system of vertical and horizontal wells |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU59477A1 (en) * | 1939-07-14 | 1940-11-30 | Н.В. Лавров | The method of underground gasification of solid fuels |
US4356866A (en) * | 1980-12-31 | 1982-11-02 | Mobil Oil Corporation | Process of underground coal gasification |
SU1728480A1 (en) * | 1989-09-18 | 1992-04-23 | Государственный Проектный Институт "Донгипрошахт" | Method of underground coal seam gasification |
NL9000426A (en) * | 1990-02-22 | 1991-09-16 | Maria Johanna Francien Voskamp | METHOD AND SYSTEM FOR UNDERGROUND GASIFICATION OF STONE OR BROWN. |
RU2099517C1 (en) * | 1995-11-16 | 1997-12-20 | Институт горного дела им.А.А.Скочинского | Method for underground gasification of coal seam |
US5669444A (en) * | 1996-01-31 | 1997-09-23 | Vastar Resources, Inc. | Chemically induced stimulation of coal cleat formation |
RU2209305C2 (en) * | 2000-04-13 | 2003-07-27 | Ухтинский государственный технический университет | Method of coals underground gasification and degassing (versions) |
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2008
- 2008-03-26 RU RU2008111652/03A patent/RU2378506C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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RU2378506C2 (en) | 2010-01-10 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100327 |