SU242821A1 - METHOD FOR CORRECTION OF OUTDOOR WELL - Google Patents
METHOD FOR CORRECTION OF OUTDOOR WELLInfo
- Publication number
- SU242821A1 SU242821A1 SU1167906A SU1167906A SU242821A1 SU 242821 A1 SU242821 A1 SU 242821A1 SU 1167906 A SU1167906 A SU 1167906A SU 1167906 A SU1167906 A SU 1167906A SU 242821 A1 SU242821 A1 SU 242821A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- well
- correction
- drilling
- column
- outdoor well
- Prior art date
Links
- 238000005553 drilling Methods 0.000 description 7
- 102100000672 SMPX Human genes 0.000 description 2
- 108060007673 SMPX Proteins 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Description
Известно, что кривизну шахтных стволов, проходимых бурением, исправл ют долотом большего диаметра.It is known that the curvature of the mine shafts, traversed by drilling, is corrected with a chisel of a larger diameter.
Предложенный способ отличаетс тем, что перебуривание скважины производ т после тампонировани в ней колонны труб диаметром меньшим, чем у скважины, с использованием этой колонны в качестве направл юш,ей дл долота. Такой прием обеспечивает вертикальность скважины после перебуривани .The proposed method is characterized in that the re-drilling of a well is carried out after plugging in it a column of pipes with a diameter smaller than that of the well, using this column as a guide for the bit. This technique ensures the verticality of the well after over-drilling.
Исправление скважины заключаетс в следуюш ,ем. В искривленную скважину выставл ют колонну труб значительно меньшего, чем у скважины, диаметра и затрубное пространство скважины тампонируют цементно-глинистым или иным раствором, подаваемым по колонне труб. Затем скважину разбуривают роторным способом долотом кернового бурени с пропуском затампонированной колонны внутрь бурильной колонны из гладкопроходных труб. Затампонированна гладкостенна колонна труб малого диаметра при разбуривании служит направл юш,ей дл долота, и оно разбуривает боковые породы в местах искривлени скважины.The repair of the well is as follows. A borehole with a much smaller diameter than the well bore is placed in a curved well and the well annulus is plugged with cement-clay or other solution supplied through the tubing string. Then the well is drilled in a rotary way with a bit of core drilling with the passage of a sealed string inside the drill string of smooth-bore pipes. A packed-in smooth-bore column of small diameter pipes, when drilled, serves as a guide for the bit, and it drills lateral rocks in the places of curvature of the well.
Операцию разбуривани затампонированной направл юш,ей колонны повтор ют до выпр млени скважины.The drilling operation of the plugged pipe was directed, and the columns were repeated until the well was rectified.
Предмет изобретени Subject invention
Способ исправлени передовой скважины при многофазном бурении шахтных стволов путем ее перебуривани , отличающийс тем,A method for correcting an advanced well in multiphase drilling of mine shafts by re-drilling it,
что, с целью обеспечени ее вертикальности, перебуривание скважины производ т после тампонировани в ней колонны труб диаметром меньшим, чем у скважины, с использованием колонны в качестве направл юш,ей дл that, in order to ensure its verticality, the well was re-drilled after plugging in it a column of pipes with a diameter smaller than that of the well, using the column as a guide, for
долота.chisel
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU242821A1 true SU242821A1 (en) |
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