The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2019
Filed:
Apr. 27, 2011
Dean M. Homan, Sugar Land, TX (US);
Emmanuel Legendre, Sevres, FR;
Reza Taherian, Sugar Land, TX (US);
Jean Seydoux, Houston, TX (US);
Eunmi Choi, Sugar Land, TX (US);
Gerald N. Minerbo, Missouri City, TX (US);
Sergiy Kryukov, Houston, TX (US);
Robert C. Smith, Houston, TX (US);
Dean M. Homan, Sugar Land, TX (US);
Emmanuel Legendre, Sevres, FR;
Reza Taherian, Sugar Land, TX (US);
Jean Seydoux, Houston, TX (US);
Eunmi Choi, Sugar Land, TX (US);
Gerald N. Minerbo, Missouri City, TX (US);
Sergiy Kryukov, Houston, TX (US);
Robert C. Smith, Houston, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
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.