发明名称 |
Linear indexing apparatus and methods of using same |
摘要 |
A linear indexing apparatus and associated methods of using same provide convenient operation of tools in a subterranean wellbore. In a preferred embodiment, a linear indexing apparatus has an outer tubular housing and a tubular mandrel axially slidably disposed within the housing. Two sets of slips are utilized to incrementally displace the mandrel relative to the housing. A piston associated with one of the sets of slips permits the mandrel to be incrementally indexed in response to a series of repeated applications of a predetermined differential pressure.
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申请公布号 |
US5826661(A) |
申请公布日期 |
1998.10.27 |
申请号 |
US19960667305 |
申请日期 |
1996.06.20 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
PARKER, CHARLES D.;SHY, PERRY C.;DICKSON, RENNIE L.;COLLINS, LEO G.;GANO, JOHN C. |
分类号 |
E21B23/00;E21B23/04;E21B33/12;E21B33/134;E21B34/06;E21B34/10;(IPC1-7):E21B34/14 |
主分类号 |
E21B23/00 |
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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