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- W2393896558 abstract "The accelerometers and magnetometers synchronously rotate with the BHA(bottom hole assembly) in the AVDS(automatically strap-down vertical drilling system).Therefore the determination of dynamical BHA attitudes is premise and critical for real-time deviation control and correction.Based on data classification and small inclination angle approximate solution,a dynamic MWD(measurement while drilling) algorithm is proposed.The BHA rotation mode is divided into three categories:static,continuous and stick-slip rotation.When the BHA is static, traditional algorithm is adopted.In the continuous rotation mode the BHA's attitude algorithm uses re-sample theory which is based on the narrowband pass filter and the equal-angle interval, and in the stick-slip rotation mode the measurement algorithm is based on the least-square fitting method.The field experiments show that the algorithm could provide reliable BHA's attitude, and help drill collar find the accurate push direction.This dynamic measurement algorithm can meet the AVDS's accuracy requirement on the BHA's attitude measurement." @default.
- W2393896558 created "2016-06-24" @default.
- W2393896558 creator A5027501162 @default.
- W2393896558 date "2011-01-01" @default.
- W2393896558 modified "2023-09-23" @default.
- W2393896558 title "Research and Application of Dynamical Measurement of Drill Tool Attitude in Vertical Drilling" @default.
- W2393896558 hasPublicationYear "2011" @default.
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