Invention Grant
- Patent Title: Preselecting initial guesses for multi-step inversion using electromagnetic measurements
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Application No.: US16615382Application Date: 2018-12-28
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Publication No.: US10996368B2Publication Date: 2021-05-04
- Inventor: Weixin Dong , Hsu-Hsiang Wu , Li Pan
- 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. Tumey Law Group PLLC
- Agent Benjamin Ford
- International Application: PCT/US2018/067820 WO 20181228
- International Announcement: WO2020/139364 WO 20200702
- Main IPC: G01V3/30
- IPC: G01V3/30 ; G01V3/38 ; G01V3/28

Abstract:
A system and method for electromagnetic measurements. The system may comprise an electromagnetic transmitter, wherein the electromagnetic transmitter is an antenna and is operable to transmit a low frequency electromagnetic field into a formation or a high frequency electromagnetic field into the formation. The system may further comprise an electromagnetic receiver, wherein the electromagnetic receiver is an antenna and is operable to record the high frequency electromagnetic field or the low frequency electromagnetic field. The method may comprise transmitting a high frequency electromagnetic field, recording a high frequency electromagnetic field, transmitting a low frequency electromagnetic field, recording a low frequency electromagnetic field, performing a shallow inversion on the low frequency electromagnetic field and the high frequency electromagnetic field to form a formation resistivity model, and running the deep inversion with the random initial guesses that have the misfit.
Public/Granted literature
- US20210055447A1 Preselecting Initial Guesses For Multi-Step Inversion Using Electromagnetic Measurements Public/Granted day:2021-02-25
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