Invention Publication
- Patent Title: BOREHOLE CORRECTION FOR RESISTIVITY LWD TOOLS WITH ULTRASONIC LOG WHILE DRILLING CALIPER
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Application No.: US17952844Application Date: 2022-09-26
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Publication No.: US20240102374A1Publication Date: 2024-03-28
- Inventor: Xiang WU , Yi Jing Fan , Jing Jin
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Main IPC: E21B44/00
- IPC: E21B44/00 ; E21B47/0228 ; E21B47/085 ; E21B49/00

Abstract:
Aspects of the subject technology relate to systems, methods, and computer-readable media for identifying a borehole correction factor for determining a true resistivity by selecting a model to apply in identifying the borehole correction factor and applying the model to an apparent resistivity to identify the borehole correction factor. To perform borehole correction, a multiplicative coefficient is needed to apply to the apparent resistivity. A database of this multiplicative coefficient, called the borehole correction factor, is generated based on the borehole correction model. The technology described herein allows operators to avoid time-consuming variable borehole diameter sweeps and complex borehole diameter inversion current used in resistivity logging software.
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