Invention Grant
- Patent Title: Accurate and cost-effective inversion-based auto calibration methods for resistivity logging tools
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Application No.: US17409518Application Date: 2021-08-23
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Publication No.: US11940587B2Publication Date: 2024-03-26
- Inventor: Li Pan , Yi Jing Fan , Hsu-Hsiang Wu , Jin Ma
- 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
- Agency: C. Turmey Law Group PLLC
- Agent Benjamin Ford
- Main IPC: G01V3/28
- IPC: G01V3/28 ; G01V1/50 ; G01V13/00

Abstract:
Systems and methods of the present disclosure relate to calibration of resistivity logging tool. A method to calibrate a resistivity logging tool comprises disposing the resistivity logging tool into a formation; acquiring a signal at each logging point with the resistivity logging tool; assuming a formation model for a first set of continuous logging points in the formation; inverting all of the signals for unknown model parameters of the formation model, wherein the formation model is the same for all of the continuous logging points in the first set; assigning at least one calibration coefficient to each type of signal, wherein the calibration coefficients are the same for the first set; and building an unknown vector that includes the unknown model parameters and the calibration coefficients, to calibrate the resistivity logging tool.
Public/Granted literature
- US20230057184A1 Accurate And Cost-Effective Inversion-Based Auto Calibration Methods For Resistivity Logging Tools Public/Granted day:2023-02-23
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