发明名称 |
APPARATUS FOR MEASURING AND RECORDING DATA FROM BOREHOLES |
摘要 |
For collecting data from a water well, down-hole sensors are housed in modules. The modules are arranged to be screwed together in-line to form a vertical string. Mechanically, the modules are secured to each other only by the screw connection. Data is transmitted to the surface on a 2-wire cable, there being no other electrical connection between the modules and the surface. The modules are connected in multi-drop configuration to the 2-wire cable. Data is transmitted using time-division multiplexing.
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申请公布号 |
CA2247644(A1) |
申请公布日期 |
1999.03.18 |
申请号 |
CA19982247644 |
申请日期 |
1998.09.18 |
申请人 |
SOLINST CANADA LIMITED |
发明人 |
DOOLEY, KEVIN ALLAN;PATEY, RONALD ERNEST RUSSELL;BELSHAW, DOUGLAS JAMES |
分类号 |
E21B17/02;E21B47/00;E21B47/01;E21B47/12;(IPC1-7):E21B49/08 |
主分类号 |
E21B17/02 |
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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