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RU2007148901A - Система буровых скважин с полостью - Google Patents

Система буровых скважин с полостью Download PDF

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Publication number
RU2007148901A
RU2007148901A RU2007148901/03A RU2007148901A RU2007148901A RU 2007148901 A RU2007148901 A RU 2007148901A RU 2007148901/03 A RU2007148901/03 A RU 2007148901/03A RU 2007148901 A RU2007148901 A RU 2007148901A RU 2007148901 A RU2007148901 A RU 2007148901A
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RU
Russia
Prior art keywords
cavity
wellbore
formation
earth
casing
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RU2007148901/03A
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English (en)
Inventor
Кристофер А. ПРЭТТ (CA)
Кристофер А. ПРЭТТ
Дуглас П. СИМС (CA)
Дуглас П. СИМС
Original Assignee
СиДиэКС ГЭС Л.Л.К. (US)
СиДиэКС ГЭС Л.Л.К.
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.)
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Application filed by СиДиэКС ГЭС Л.Л.К. (US), СиДиэКС ГЭС Л.Л.К. filed Critical СиДиэКС ГЭС Л.Л.К. (US)
Publication of RU2007148901A publication Critical patent/RU2007148901A/ru

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Classifications

    • 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
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
    • 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
    • E21B43/006—Production of coal-bed methane
    • 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
    • E21B43/02—Subsoil filtering
    • E21B43/04—Gravelling of wells
    • 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
    • E21B43/02—Subsoil filtering
    • E21B43/04—Gravelling of wells
    • E21B43/045—Crossover tools
    • 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
    • E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

1. Способ обеспечения доступа к подземной зоне, включающий следующие этапы: ! формирование первого ствола скважины, идущего от поверхности земли, и формирование подземной полости в стволе скважины; и ! формирование сочлененного ствола скважины, идущего от поверхности земли до примыкания к подземной зоне, и формирование нескольких в основном горизонтальных стволов скважин от сочлененной скважины, при этом несколько в основном горизонтальных стволов скважин пробурены через полость и проникают, по меньшей мере, частично в подземную зону. ! 2. Способ по п.1, в котором формирование полости включает формирование полости, примыкающей к подземной зоне. ! 3. Способ по п.1, дополнительно включающий установку обсадной колонны-хвостовика в двух или более из нескольких в основном горизонтальных стволах скважин. ! 4. Способ по п.3, в котором, по меньшей мере, одна из обсадных колонн-хвостовиков заканчивается вблизи полости. ! 5. Способ по п.3, в котором, по меньшей мере, одна из обсадных колонн-хвостовиков пересекается с полостью. ! 6. Способ по п.1, дополнительно включающий заполнение гравием, по меньшей мере, части полости. ! 7. Способ по п.6, дополнительно включающий введение в вертикальном направлении перфорированной обсадной колонны-хвостовика в ту часть полости, которая была заполнена гравием. ! 8. Способ по п.7, дополнительно включающий расширение обсадной колонны-хвостовика в радиальном направлении. ! 9. Способ по п.1, в котором полость включает в основном цилиндрическую часть. ! 10. Способ по п.1, в котором формирование первого ствола скважины включает формирование в основном вертикального ствола скважины. ! 11. Способ по п.1, в котором сочл�

Claims (31)

1. Способ обеспечения доступа к подземной зоне, включающий следующие этапы:
формирование первого ствола скважины, идущего от поверхности земли, и формирование подземной полости в стволе скважины; и
формирование сочлененного ствола скважины, идущего от поверхности земли до примыкания к подземной зоне, и формирование нескольких в основном горизонтальных стволов скважин от сочлененной скважины, при этом несколько в основном горизонтальных стволов скважин пробурены через полость и проникают, по меньшей мере, частично в подземную зону.
2. Способ по п.1, в котором формирование полости включает формирование полости, примыкающей к подземной зоне.
3. Способ по п.1, дополнительно включающий установку обсадной колонны-хвостовика в двух или более из нескольких в основном горизонтальных стволах скважин.
4. Способ по п.3, в котором, по меньшей мере, одна из обсадных колонн-хвостовиков заканчивается вблизи полости.
5. Способ по п.3, в котором, по меньшей мере, одна из обсадных колонн-хвостовиков пересекается с полостью.
6. Способ по п.1, дополнительно включающий заполнение гравием, по меньшей мере, части полости.
7. Способ по п.6, дополнительно включающий введение в вертикальном направлении перфорированной обсадной колонны-хвостовика в ту часть полости, которая была заполнена гравием.
8. Способ по п.7, дополнительно включающий расширение обсадной колонны-хвостовика в радиальном направлении.
9. Способ по п.1, в котором полость включает в основном цилиндрическую часть.
10. Способ по п.1, в котором формирование первого ствола скважины включает формирование в основном вертикального ствола скважины.
11. Способ по п.1, в котором сочлененный ствол скважины смещен в горизонтальном направлении от первого ствола скважины.
12. Способ по п.1, в котором, по меньшей мере, один первый ствол скважины и сочлененная скважина идут с поверхности земли через входную скважину.
13. Способ по п.1, дополнительно включающий удаление жидкости из полости на поверхность земли через первый ствол скважины.
14. Способ по п.13, в котором удаление жидкости включает, по меньшей мере, обеспечение механизированной добычи для подъема жидкости из полости на поверхность земли и истечение жидкости из фонтанирующей скважины.
15. Способ по п.14, в котором обеспечение механизированной добычи включает, по меньшей мере, откачку жидкости и использование газлифта.
16. Система для обеспечения доступа к подземной зоне, включающая
подземную полость, соединенную с поверхностью земли с помощью первого ствола скважины; и
несколько в основном горизонтальных стволов скважин, пробуренных из второго ствола скважины через полость и проникающих, по меньшей мере, частично вовнутрь подземной зоны.
17. Система по п.16, дополнительно включающая обсадную колонну-хвостовик в двух или более из нескольких в основном горизонтальных стволах скважин.
18. Система по п.17, в которой, по меньшей мере, одна из обсадных колонн-хвостовиков заканчивается, примыкая к полости.
19. Система по п.17, в которой, по меньшей мере, одна из обсадных колонн-хвостовиков проходит через полость.
20. Система по п.16, в которой, по меньшей мере, часть полости заполнена гравием.
21. Система по п.16, в которой полость включает в основном цилиндрическую часть.
22. Система по п.16, в которой второй ствол скважины включает сочлененную скважину, идущую от поверхности земли и соединенную с полостью с помощью нескольких в основном горизонтальных стволов скважин.
23. Система по п.22, дополнительно включающая впускную трубу насоса в первом стволе скважины.
24. Способ обеспечения доступа к угольному пласту, включающий следующие стадии:
формирование полости, примыкающей к угольному пласту и соединенной с поверхностью земли;
формирование нескольких в основном горизонтальных стволов скважин, пробуренных в полость и проходящих через нее и проникающих, по меньшей мере, частично в угольный пласт;
заполнение гравием, по меньшей мере, части полости и
извлечение жидкости из полости на поверхность земли.
25. Способ по п.24, в котором один или более из нескольких в основном горизонтальных стволов скважин включает обсадную колонну-хвостовик.
26. Способ по п.25, в котором одна или несколько обсадных колонн-хвостовиков пересекают полость.
27. Способ по п.24, в котором добыча жидкости включает, по меньшей мере, обеспечение механизированной добычи для подъема жидкости из полости на поверхность земли и истечение жидкости из фонтанирующей скважины.
28. Способ по п.24, дополнительно включающий введение в вертикальном направлении перфорированной обсадной колонны-хвостовика в ту часть полости, которая была заполнена гравием.
29. Способ по п.28, дополнительно включающий расширение перфорированной обсадной колонны-хвостовика в радиальном направлении.
30. Система для обеспечения доступа к угольному пласту, включающая
полость, примыкающую к угольному пласту и соединенную с поверхностью земли с помощью первого ствола скважины;
несколько дренажных скважин, пробуренных из второго ствола скважины в полость; и
в которой, по меньшей мере, часть полости заполнена гравием.
31. Система по п.30, в которой, по меньшей мере, одна из дренажных скважин, включающая обсадную колонну-хвостовик, предназначена для обеспечения протекания жидкости между внутренним пространством обсадной колонны-хвостовика и полостью.
RU2007148901/03A 2005-05-31 2006-05-31 Система буровых скважин с полостью RU2007148901A (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/141,335 2005-05-31
US11/141,335 US7571771B2 (en) 2005-05-31 2005-05-31 Cavity well system

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US (1) US7571771B2 (ru)
EP (1) EP1907666A2 (ru)
CN (1) CN101233293A (ru)
AU (1) AU2006252577A1 (ru)
CA (1) CA2610610A1 (ru)
NZ (1) NZ564797A (ru)
RU (1) RU2007148901A (ru)
WO (1) WO2006130652A2 (ru)
ZA (1) ZA200800062B (ru)

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AU2006252577A1 (en) 2006-12-07
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US7571771B2 (en) 2009-08-11
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