发明名称 |
Redundant Position Reference System for Multilateral Exit Construction and Method for Use of Same |
摘要 |
A position reference system (100) for multilateral exit construction in a wellbore (32). The system (100) includes a casing string (34) having a window joint (106) and a pair of latch couplings (102, 104) interconnected therein and positioned in the wellbore (32). The first latch coupling (102) has a first inner profile operably engagable with a mating profile of a first latch assembly (114) to anchor and orient the first latch assembly (114) relative to the window joint (106). The second latch coupling (104) has a second inner profile that is different from the first inner profile of the first latch coupling (102). The second inner profile is operably engagable with a mating profile of a second latch assembly (124) to anchor and orient the second latch assembly (124) relative to the window joint (106). |
申请公布号 |
US2012103687(A1) |
申请公布日期 |
2012.05.03 |
申请号 |
US20100917070 |
申请日期 |
2010.11.01 |
申请人 |
SAURER DAN;HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
SAURER DAN |
分类号 |
E21B47/02 |
主分类号 |
E21B47/02 |
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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