RU2002135347A - Способ добычи газа из подземного угольного пласта - Google Patents
Способ добычи газа из подземного угольного пластаInfo
- Publication number
- RU2002135347A RU2002135347A RU2002135347/03A RU2002135347A RU2002135347A RU 2002135347 A RU2002135347 A RU 2002135347A RU 2002135347/03 A RU2002135347/03 A RU 2002135347/03A RU 2002135347 A RU2002135347 A RU 2002135347A RU 2002135347 A RU2002135347 A RU 2002135347A
- Authority
- RU
- Russia
- Prior art keywords
- borehole
- coal seam
- drainage
- gas
- drilling
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims 28
- 239000003245 coal Substances 0.000 title claims 28
- 238000000605 extraction Methods 0.000 title 1
- 238000001881 scanning electron acoustic microscopy Methods 0.000 title 1
- 238000005553 drilling Methods 0.000 claims 15
- 230000015572 biosynthetic process Effects 0.000 claims 14
- 238000005755 formation reaction Methods 0.000 claims 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 8
- 238000005086 pumping Methods 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 2
- 230000002706 hydrostatic Effects 0.000 claims 1
Claims (27)
1. Способ формирования горизонтальной подземной системы дренажа для обеспечения доступа к четырехстороннему участку подземной зоны, включающий в себя формирование диагональной буровой скважины с горизонтальным стволом, идущей по диагонали от первого угла четырехстороннего участка к отдаленному углу этого участка; формирование первого множества горизонтальных буровых скважин, идущих на расстоянии друг от друга от диагональной буровой скважины к периферии четырехстороннего участка на первой стороне диагональной буровой скважины; и формирование второго множества горизонтальных буровых скважин, идущих на расстоянии друг от друга от диагональной буровой скважины к периферии четырехстороннего участка на второй, противоположной стороне диагонали.
2. Способ по п.1, отличающийся тем, что длину ответвленных буровых скважин постепенно уменьшают по мере увеличения расстояния от первого угла четырехстороннего участка.
3. Способ по п.1, отличающийся тем, что ответвленные буровые скважины формируют под углом от 40 до 50° по отношению к диагональной буровой скважине.
4. Способ по п.3, отличающийся тем, что ответвленные буровые скважины формируют под углом около 45° по отношению к диагональной буровой скважине.
5. Способ по п.1, отличающийся тем, что четырехсторонний участок является квадратом.
6. Способ по п.1, отличающийся тем, что диагональная и ответвленные буровые скважины обеспечивают равномерное покрытие участка.
7. Способ по п.1, отличающийся тем, что ответвленные буровые скважины в каждом из первого и второго множества ответвленных буровых скважин располагаются на одинаковом расстоянии друг от друга.
8. Способ добычи газа из подземного угольного пласта, включающий в себя бурение первой главным образом вертикальной буровой скважины, пересекающейся с вышеуказанным угольным пластом; каратаж указанной буровой скважины с целью определения глубины указанного угольного пласта; формирование полости с расширенным диаметром в указанной первой буровой скважине на глубине угольного пласта; бурение второй буровой скважины, ответвляющейся горизонтально от первой буровой скважины, причем вторая буровая скважина включает в себя горизонтальную секцию, пересекающуюся с вышеуказанной полостью; бурение основной дренажной буровой скважины с горизонтальным стволом, расположенной в указанном угольном пласте; и вывод газа из угольного пласта через указанную дренажную буровую скважину.
9. Способ по п.8, отличающийся тем, что при наличии в указанном угольном пласте избытка воды дополнительно включает установку насоса в указанной полости и откачивание воды из угольного пласта через указанную дренажную буровую скважину.
10. Способ по п.8, отличающийся тем, что осуществляют бурение множества дополнительных дренажных буровых скважин в угольном пласте, которые пересекаются с основной дренажной буровой скважиной.
11. Способ по п.10, отличающийся тем, что основная и дополнительные дренажные буровые скважины образуют перистую структуру.
12. Способ добычи газа из подземного угольного пласта, включающий в себя бурение первой буровой скважины с поверхности земли до пересечения с угольным пластом; каратаж указанной буровой скважины с целью определения глубины указанного угольного пласта; формирование полости с расширенным диаметром в указанной первой буровой скважине; бурение ответвляющейся буровой скважины от поверхности до пересечения с указанной полостью; использование указанной ответвляющейся буровой скважины для бурения основной дренажной буровой скважины с горизонтальным стволом в угольном пласте; формирование множества дополнительных дренажных скважин в угольном пласте, каждая из которых пересекается с указанной основной дренажной буровой скважиной; откачивание воды из угольного пласта через дополнительные и основную дренажные буровые скважины в указанную полость; перекачка воды из указанной полости на поверхность через первую буровую скважину; подачу газа из угольного пласта через указанные дополнительные и основную дренажные буровые скважины; и вывод газа на поверхность через указанную первую буровую скважину.
13. Способ по п.12, отличающийся тем, что основная и дополнительные дренажные буровые скважины образуют перистую структуру.
14. Способ приведения в рабочее состояние дренажных буровых скважин в подземном угольном пласте, включающий в себя бурение первой буровой скважины, идущей с поверхности земли как минимум на глубину расположения угольного пласта; каратаж указанной первой буровой скважины для определения глубины пересечения вышеупомянутого угольного пласта с этой скважиной; расширение диаметра указанной первой буровой скважины на глубине угольного пласта для формирования полости; бурение ответвляющейся буровой скважины, расположенной на расстоянии от первой буровой скважины и состоящей из вертикальной секции, идущей с поверхности земли на глубину, меньшую чем глубина залегания угольного пласта горизонтальной секции, пересекающей указанную полость, и изогнутой секции, соединяющейся с вертикальной и горизонтальной секциями; использование сочлененной бурильной колонны, проходящей через указанные ответвляющуюся буровую скважину и полость для бурения основной дренажной буровой скважины в угольном пласте; подача бурового раствора вниз через бурильную колонну и обратно наверх через кольцевое пространство между ответвляющейся буровой скважиной и бурильной колонной для удаления выбуренной породы из дренажной буровой скважины; и примешивание сжатого воздуха к буровому раствору для снижения гидростатического давления в дренажной скважине.
15. Способ по п.14, отличающийся тем, что по крайней мере часть сжатого воздуха подается через бурильную колонну .
16. Способ по п.14, отличающийся тем, что по крайней мере часть сжатого воздуха подается через первую буровую скважину.
17. Способ по п.14, отличающийся тем, что допольнительно включает в себя удаление бурильной колонны из дренажной буровой скважины и ответвляющейся буровой скважины; каратаж ответвляющейся буровой скважины; откачивание воды и вывод газа из угольного пласта через дренажную буровую скважину; и вывод газа на поверхность через основную буровую скважину.
18. Способ добычи газа из подземного угольного пласта, включающий в себя; бурение первой вертикальной буровой скважины, пересекающейся с угольным пластом; бурение второй буровой скважины, ответвляющейся горизонтально от первой буровой скважины и включающей горизонтальную секцию, пересекающуюся с первой буровой скважиной; бурение в угольном пласте дренажной буровой скважины с горизонтальным стволом, причем дренажная буровая скважина идет от пересечения первой и второй буровых скважин; и вывод газа из угольного пласта через дренажную буровую скважину и первую буровую скважину.
19. Способ добычи пластового газа из газодинамического пласта, включающий в себя формирование системы дренажа в газодинамическом пласте, которая включает множество параллельных дренажных скважин, размещенных на одинаковом расстоянии на противоположных сторонах оси системы дренажа; и одновременный вывод воды и пластового газа из газодинамического пласта.
20. Способ по п.19, отличающийся тем, что система дренажа включает в себя центральную скважину, от которой отходят дополнительные дренажные скважины.
21. Способ по п.20, отличающийся тем, что дополнительные дренажные скважины в основном симметрично рассположены на каждой стороне центральной скважины.
22. Способ по п.19, отличающийся тем, что система дренажа является горизонтальной.
23. Способ по п.19, отличающийся тем, что дополнительно включает в себя формирование полости, к которой примыкает система дренажа; и одновременный вывод воды и пластового газа из газодинамического пласта через эту полость.
24. Способ по п.23, отличающийся тем, что полость с расширенным диаметром имеет диаметр приблизительно 2,6 м.
25. Способ по п.19, отличающийся тем, что дополнительные дренажные скважины постепенно укорачиваются по мере их удаления от центральной скважины.
26. Способ по п.19 отличающийся тем, что вода и пластовый газ выводятся из четырехстороннего участка газодинамического пласта.
27. Способ по п.19, отличающийся тем, что система дренажа обеспечивает равномерное покрытие участка газодинамического пласта.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/197,687 US6280000B1 (en) | 1998-11-20 | 1998-11-20 | Method for production of gas from a coal seam using intersecting well bores |
US09/197,687 | 1998-11-20 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2001117069/03A Division RU2246602C2 (ru) | 1998-11-20 | 1999-11-19 | Способ обеспечения доступа в подземную зону или в угольный пласт (варианты), система обеспечения доступа в угольный пласт, способы формирования подземной дренажной системы и создание дренажных скважин, способ подготовки угольного пласта (варианты) и способ добычи газа из подземного угольного пласта (варианты) |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2005125568/03A Division RU2293833C1 (ru) | 1998-11-20 | 2005-08-11 | Способ формирования горизонтальной системы дренажа для добычи газа, способ бурения дренажных буровых скважин и способ добычи газа из угольного пласта (варианты) |
Publications (2)
Publication Number | Publication Date |
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RU2002135347A true RU2002135347A (ru) | 2004-06-27 |
RU2259480C2 RU2259480C2 (ru) | 2005-08-27 |
Family
ID=22730357
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2008143916/03A RU2505657C2 (ru) | 1998-11-20 | 1999-11-19 | Способ обеспечения доступа в угольный пласт |
RU2001117069/03A RU2246602C2 (ru) | 1998-11-20 | 1999-11-19 | Способ обеспечения доступа в подземную зону или в угольный пласт (варианты), система обеспечения доступа в угольный пласт, способы формирования подземной дренажной системы и создание дренажных скважин, способ подготовки угольного пласта (варианты) и способ добычи газа из подземного угольного пласта (варианты) |
RU2002135347/03A RU2259480C2 (ru) | 1998-11-20 | 2002-12-27 | Способ формирования горизонтальной системы дренажа для добычи газа, способ бурения дренажных буровых скважин и способ добычи газа из угольного пласта (варианты) |
RU2005125568/03A RU2293833C1 (ru) | 1998-11-20 | 2005-08-11 | Способ формирования горизонтальной системы дренажа для добычи газа, способ бурения дренажных буровых скважин и способ добычи газа из угольного пласта (варианты) |
RU2006144731/03A RU2338863C2 (ru) | 1998-11-20 | 2006-12-15 | Способ и система обеспечения доступа в подземную зону с поверхности земли |
RU2013149294/03A RU2013149294A (ru) | 1998-11-20 | 2013-11-06 | Способ обеспечения доступа в угольный пласт |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2008143916/03A RU2505657C2 (ru) | 1998-11-20 | 1999-11-19 | Способ обеспечения доступа в угольный пласт |
RU2001117069/03A RU2246602C2 (ru) | 1998-11-20 | 1999-11-19 | Способ обеспечения доступа в подземную зону или в угольный пласт (варианты), система обеспечения доступа в угольный пласт, способы формирования подземной дренажной системы и создание дренажных скважин, способ подготовки угольного пласта (варианты) и способ добычи газа из подземного угольного пласта (варианты) |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
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RU2005125568/03A RU2293833C1 (ru) | 1998-11-20 | 2005-08-11 | Способ формирования горизонтальной системы дренажа для добычи газа, способ бурения дренажных буровых скважин и способ добычи газа из угольного пласта (варианты) |
RU2006144731/03A RU2338863C2 (ru) | 1998-11-20 | 2006-12-15 | Способ и система обеспечения доступа в подземную зону с поверхности земли |
RU2013149294/03A RU2013149294A (ru) | 1998-11-20 | 2013-11-06 | Способ обеспечения доступа в угольный пласт |
Country Status (15)
Country | Link |
---|---|
US (12) | US6280000B1 (ru) |
EP (4) | EP1131535B1 (ru) |
CN (5) | CN100400794C (ru) |
AT (4) | ATE383495T1 (ru) |
AU (9) | AU760896B2 (ru) |
CA (9) | CA2350504C (ru) |
CZ (1) | CZ20011757A3 (ru) |
DE (4) | DE69928280T2 (ru) |
ES (3) | ES2297582T3 (ru) |
ID (1) | ID30391A (ru) |
NZ (3) | NZ512303A (ru) |
PL (9) | PL193559B1 (ru) |
RU (6) | RU2505657C2 (ru) |
WO (1) | WO2000031376A2 (ru) |
ZA (1) | ZA200103917B (ru) |
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2001
- 2001-02-20 US US09/791,033 patent/US6439320B2/en not_active Expired - Lifetime
- 2001-02-20 US US09/788,897 patent/US6732792B2/en not_active Expired - Fee Related
- 2001-02-20 US US09/789,956 patent/US6478085B2/en not_active Expired - Lifetime
- 2001-05-15 ZA ZA200103917A patent/ZA200103917B/en unknown
- 2001-06-20 US US09/885,219 patent/US6561288B2/en not_active Expired - Lifetime
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2002
- 2002-06-07 US US10/165,625 patent/US6688388B2/en not_active Expired - Fee Related
- 2002-06-07 US US10/165,627 patent/US6668918B2/en not_active Expired - Fee Related
- 2002-12-27 RU RU2002135347/03A patent/RU2259480C2/ru not_active IP Right Cessation
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2003
- 2003-01-22 AU AU2003200203A patent/AU2003200203B2/en not_active Expired
- 2003-08-15 US US10/641,856 patent/US6976533B2/en not_active Expired - Fee Related
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2005
- 2005-06-09 AU AU2005202498A patent/AU2005202498B2/en not_active Expired
- 2005-08-11 RU RU2005125568/03A patent/RU2293833C1/ru not_active IP Right Cessation
- 2005-12-20 US US11/312,041 patent/US20060096755A1/en not_active Abandoned
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2006
- 2006-09-29 AU AU2006222767A patent/AU2006222767B2/en not_active Expired
- 2006-12-15 RU RU2006144731/03A patent/RU2338863C2/ru not_active IP Right Cessation
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2007
- 2007-08-24 AU AU2007211916A patent/AU2007211916B2/en not_active Expired
- 2007-08-24 AU AU2007211918A patent/AU2007211918B2/en not_active Expired
- 2007-08-24 AU AU2007211917A patent/AU2007211917B2/en not_active Expired
- 2007-09-14 AU AU2007216777A patent/AU2007216777B2/en not_active Expired
- 2007-10-31 US US11/981,939 patent/US8511372B2/en not_active Expired - Fee Related
- 2007-10-31 US US11/982,232 patent/US8297350B2/en not_active Expired - Fee Related
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2011
- 2011-01-28 AU AU2011200364A patent/AU2011200364B2/en not_active Expired
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2013
- 2013-11-06 RU RU2013149294/03A patent/RU2013149294A/ru not_active Application Discontinuation
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