Invention Grant
- Patent Title: System and method for determining drill string motions using acceleration data
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Application No.: US15153073Application Date: 2016-05-12
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Publication No.: US10227865B2Publication Date: 2019-03-12
- Inventor: Stephen K. Chiu , Phil D. Anno
- Applicant: CONOCOPHILLIPS COMPANY
- Applicant Address: US TX Houston
- Assignee: CONOCOPHILLIPS COMPANY
- Current Assignee: CONOCOPHILLIPS COMPANY
- Current Assignee Address: US TX Houston
- Agency: Conocophillips Company
- Main IPC: E21B47/09
- IPC: E21B47/09 ; E21B44/00

Abstract:
Systems and methods compute dysfunctions via mapping of tri-axial accelerations of drill pipe into drill-string motions. The methods remove gravitational and centripetal accelerations to yield corrected acceleration data due to the vibration only, transform the corrected acceleration data, and maps resulting transformed acceleration data into continuous drill-string positions. The maps provide 2D/3D visualization of drill-string motions to enable real-time optimization and control of well drilling operations and other scenarios where proactive detection of temporal events in automated systems may aid in avoiding failures.
Public/Granted literature
- US20160334306A1 SYSTEM AND METHOD FOR DETERMINING DRILL STRING MOTIONS USING ACCELERATION DATA Public/Granted day:2016-11-17
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