发明名称 |
System for drilling deviated boreholes |
摘要 |
Improved techniques are provided for drilling a deviated borehole through earth formations utilizing a rotary bit powered by a drill motor, and for obtaining information regarding the borehole or earth formations. A sensor permanently positioned in the drilling string between the drill bit and the drill motor detects a downhole parameter. An MWD tool may be provided within a non-magnetic portion of the drill string for receiving and transmitting a sensor representative signal to the surface. The sensor signal allows the drilling operation to be altered, and highly reliable and near-bit information thus improves the drilling operation.
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申请公布号 |
US5602541(A) |
申请公布日期 |
1997.02.11 |
申请号 |
US19950427602 |
申请日期 |
1995.04.24 |
申请人 |
BAROID TECHNOLOGY, INC. |
发明人 |
COMEAU, LAURIER E.;PUSTANYK, RANDAL H.;WALLIS, NICHOLAS P. |
分类号 |
E21B7/04;E21B7/06;E21B47/01;E21B47/022;E21B47/12;E21B47/16;E21B47/18;(IPC1-7):G01V1/40 |
主分类号 |
E21B7/04 |
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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