发明名称 |
FACILITY FOR DRILLING SIDE BOREHOLES FROM WELL |
摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: invention refers to drilling gas and oil wells, particularly to kickoff and drilling side boreholes from well. The facility consists of a deflecting wedge with a securing mechanism in form of a corrugated tube, and also of a channel for fluid supply communicating the cavity of drilling tubes and the cavity of cutting tool with the cavity of the corrugated tube. A sub is located between the wedge and the tube. The fixing unit of the deflecting wedge is installed in the sub. A piston and rod are arranged in a hydro-cylinder. The cavity of the hydro-cylinder communicates with the cavity of the corrugated tube. An upper part of the rod is made in form of a side shear and is designed to interact with a tapered plane of the wedge; a fixing device is installed between them. During operation pressure of working agent is being built up; through the channel pressure straightens up the corrugated tube and simultaneously moves the piston with the rod; the latter with its side shear interacts with the tapered plane of the wedge lug and presses "a head" of the wedge to the wall of the well. ^ EFFECT: reduced prime cost of fabrication of unit of deflection and wedge stop and simultaneously increased reliability and operability. ^ 6 cl, 3 dwg |
申请公布号 |
RU2366793(C1) |
申请公布日期 |
2009.09.10 |
申请号 |
RU20080114132 |
申请日期 |
2008.04.10 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "TATNEFT'" IM. V.D. SHASHINA |
发明人 |
IBRAGIMOV NAIL' GABDULBARIEVICH;ZALJATOV MARAT MARSOVICH;AKHMADISHIN FARIT FOATOVICH;MUKHAMETSHIN ALMAZ ADGAMOVICH;KASHAPOV IL'GIZ KAMAEVICH;ISMAGILOV MARAT AZATOVICH |
分类号 |
E21B7/08 |
主分类号 |
E21B7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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