发明名称 |
AZIMUTHALLY SENSITIVE RECEIVER ARRAY FOR AN ELECTROMAGNETIC MEASUREMENT TOOL |
摘要 |
An azimuthally sensitive logging while drilling tool is disclosed.The tool m ay be suitable, for example, to measure azimuthal variations of electrical properties of a subterranean formation. The tool includes at least one transmitter disposed to transmit electromagnetic energy and a longitudinally spaced receiver array. The receiver array includes a plurality of discrete magnetic field sensors deployed about a circumference of the tool body. In one exemplary embodiment, the tool includes six or more magnetic field sensors selected from either giant magnetoresistive sensors or anisotropic magnetoresistive sensors.
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申请公布号 |
CA2499045(A1) |
申请公布日期 |
2005.09.01 |
申请号 |
CA20052499045 |
申请日期 |
2005.03.01 |
申请人 |
PATHFINDER ENERGY SERVICES, INC. |
发明人 |
MOORE, ROBERT A. |
分类号 |
G01V3/08;G01V3/10;G01V3/12;G01V3/18;G01V3/30;(IPC1-7):E21B47/00;E21B47/026;E21B49/08;E21B47/12 |
主分类号 |
G01V3/08 |
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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