发明名称 |
SEALING DEVICE OF INTERSECTION POIUNT OF PARENT AND BRANCH WELLS |
摘要 |
FIELD: well drilling, particularly, devices for sealing of point of intersection of parent and branch wells. SUBSTANCE: sealing device includes section of tubular parent casing located in parent well in zone of branching point, and section of branch casing located in branch well and secured with section of parent casing and wedge-like member with chamfered surface made for engagement with chamfered surface made for engagement with chamfered surface of section of parent casing. EFFECT: provided effective sealing of intersection point of parent and branch wells. 8 cl, 3 dwg |
申请公布号 |
RU2209290(C2) |
申请公布日期 |
2003.07.27 |
申请号 |
RU19980123821 |
申请日期 |
1998.12.28 |
申请人 |
SHELL INTERNEHSHNL RISERCH MAATSKHAPPIJ B.V. |
发明人 |
KAMMING FREHNSIS ALEKSANDR;FISHER SAJMON LOURENS;LOKHBEK VIL'KHEL'MUS KHRISTIANUS MARIJA |
分类号 |
E21B7/06;E21B7/08;E21B41/00;E21B43/10 |
主分类号 |
E21B7/06 |
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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