发明名称 |
Perforating and testing apparatus including a microprocessor implemented control system responsive to an output from an inductive coupler or other input stimulus |
摘要 |
An input stimulus provides a necessary input to a microprocessor implemented control system. The control system may fire one or more perforating guns of a perforating apparatus or it may change the state of a valve in a well testing apparatus. The input stimuli may comprise a pressure pulse transmitted down a well annulus disposed between a tubing string and a borehole casing, a pressure pulse transmitted internally down the tubing string, an output of a strain gauge for sensing the set down weight of a well tool disposed in the borehole, or an output of an inductive coupler connected to the well surface.
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申请公布号 |
US5050675(A) |
申请公布日期 |
1991.09.24 |
申请号 |
US19900565774 |
申请日期 |
1990.08.10 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
UPCHURCH, JAMES M. |
分类号 |
E21B41/00;E21B43/1185;E21B47/18 |
主分类号 |
E21B41/00 |
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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