- Patent Title: Apparatus and methods for making azimuthal resistivity measurements
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Application No.: US15920034Application Date: 2018-03-13
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Publication No.: US10253614B2Publication Date: 2019-04-09
- Inventor: Tsili Wang
- Applicant: WELL RESOLUTIONS TECHNOLOGY
- Applicant Address: US TX Houston
- Assignee: Well Resolutions Technology
- Current Assignee: Well Resolutions Technology
- Current Assignee Address: US TX Houston
- Agency: Hunton Andrews Kurth LLP
- Agent Gregory L. Porter; Lloyd L. Davis
- Main IPC: E21B49/00
- IPC: E21B49/00 ; E21B44/00 ; G01V3/12 ; G01V3/28 ; G01V3/30 ; G01V3/26 ; G01V3/34 ; G06F17/30 ; E21B7/06 ; E21B47/024 ; E21B47/09 ; E21B17/10

Abstract:
A resistivity measuring tool used in a drillstring having a drill bit on a distal end for drilling a wellbore in a formation includes a tool body having a longitudinal axis, a transmitting antenna, and a receiving antenna. The receiving antenna includes an antenna body having a longer axis disposed longitudinally in the tool body, and a wire coil having a central axis disposed around the antenna body, wherein the wire coil central axis is substantially perpendicular to the longer axis of the antenna body, and wherein the wire coil is configured to generate a magnetic moment orthogonal to the tool body longitudinal axis. The transmitting antenna is configured to transmit electromagnetic energy into the formation and induce a voltage signal related to a parameter of the formation in the receiving antenna.
Public/Granted literature
- US20180203152A1 APPARATUS AND METHODS FOR MAKING AZIMUTHAL RESISTIVITY MEASUREMENTS Public/Granted day:2018-07-19
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