发明名称 |
método para obter medições corrigidas por ganho, aparelho para determinar uma propriedade de formação de uma formação subterrânea, blindagem para uma ferramenta de perfilagem dentro de poço, e método para obter uma matriz de impedância utilizando uma ferramenta dentro do poço substancialmente não rotativa |
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. |
申请公布号 |
BR112012027692(A2) |
申请公布日期 |
2016.08.16 |
申请号 |
BR20121127692 |
申请日期 |
2011.04.27 |
申请人 |
PRAD RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
DEAN M. HOMAN;EMMANUEL LEGENDRE;EUNMI CHOI;GERALD N. MINERBO;JEAN SEYDOUX;REZA TAHERIAN;ROBERT C. SMITH;SERGIY KRYUKOV |
分类号 |
E21B47/00;G01V3/18;G01V3/26 |
主分类号 |
E21B47/00 |
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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