- Patent Title: Minimizing azimuthal current induced on tubulars by transmitters
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Application No.: US15524080Application Date: 2016-04-21
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Publication No.: US10408793B2Publication Date: 2019-09-10
- Inventor: Ilker R. Capoglu , Burkay Donderici
- 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 Jason Sedano
- International Application: PCT/US2016/028679 WO 20160421
- International Announcement: WO2017/184154 WO 20171026
- Main IPC: G01N27/90
- IPC: G01N27/90 ; G01V3/28 ; E21B47/00 ; G01N33/24

Abstract:
A tool and method for reducing azimuthal current. An EM induction tool may comprise a tubular, which may further comprise a body with a central axis and an insulating layer that may be non-azimuthally symmetric with respect to the central axis. The EM induction tool may further comprise a transmitter coupled to the tubular and a receiver coupled to the tubular. A method of reducing azimuthal current may comprise introducing a current through a transmitter into a subterranean formation, wherein the transmitter is coupled to a tubular, allowing an insulating layer of the tubular to at least partially block azimuthal currents originating from the transmitter from flowing on the tubular, wherein the insulating layer is non-azimuthally symmetric, and measuring eddy currents induced by the current with one or more receiver coupled to the tubular.
Public/Granted literature
- US20180196006A1 Minimizing Azimuthal Current Induced on Tubulars by Transmitters Public/Granted day:2018-07-12
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