发明名称 |
GAIN-CORRECTED MEASUREMENTS |
摘要 |
A method to obtain gain-corrected measurements. A measurement tool having one or more arrays is provided, wherein the arrays include two co-located triaxial transmitters and two co-located triaxial receivers. Measurements are obtained using the transmitters and the receivers. Impedance matrices are formed from the obtained measurements and the impedance matrices are combined to provide gain-corrected measurements. The apparatus may alternatively be a while-drilling logging tool having one or more arrays, wherein each array comprises a transmitter, a receiver, and a buck, and wherein the signal received by the receiver is subtracted from the signal received by the buck or vice versa. A slotted shield may be incorporated into either embodiment of the tool. The slots may form one or more island elements. A material is disposed in the slots. The islands and shield body have complementary tapered sides that confine the islands within the shield body.
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申请公布号 |
CA2797683(A1) |
申请公布日期 |
2011.11.10 |
申请号 |
CA20112797683 |
申请日期 |
2011.04.27 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
HOMAN, DEAN M.;LEGENDRE, EMMANUEL;TAHERIAN, REZA;SEYDOUX, JEAN;CHOI, EUNMI;MINERBO, GERALD N.;KRYUKOV, SERGIY;SMITH, ROBERT C. |
分类号 |
G01V3/26;E21B47/00;G01V3/18 |
主分类号 |
G01V3/26 |
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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