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:
Jun. 15, 2021
Filed:
Mar. 06, 2019
Halliburton Energy Services, Inc., Houston, TX (US);
Junsheng Hou, Kingwood, TX (US);
Michael S. Bittar, Houston, TX (US);
Yijing Fan, Singapore, SG;
Li Pan, Singapore, SG;
Jin Ma, Houston, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
Numerical and/or semi-analytical methods are leveraged to decouple a complete set of nonzero electromagnetic field tensor components () from detected signal data (). Nine nonzero components can serve as inputs for a three-dimensional inversion process to determine formation properties. A resistivity tool () containing at least one transmitter () and at least one receiver () at tilted angles receives an electromagnetic signal throughout a rotation. A difference in the azimuthal positions of the transmitter(s) and receiver(s) during rotation of the resistivity tool can result in an azimuthal offset between resistivity tool subs. The components () are decoupled from the detected signal data () numerically or semi-analytically according to whether the azimuthal offset angle is known. If the azimuthal offset angle is known, the nine components are determined numerically through curve fitting. If the azimuthal offset angle is unknown, a semi-analytical process is used to solve for the nine components.