Abstract
The static deflection of the BHA in the borehole is a function of the survey and borehole geometry. The survey is determined by the directional measurement. The directional measurements can be sag-corrected to increase the accuracy. Sag correction is a correction of the directional measurement with respect to the static solution. That means the static solution depends on the survey and the directional measurement depends on the static solution.
The method proposed is an iterative determination of the survey and the static solution until the failure of both with respect to each other and with respect to the measurements is minimal. Theoretically the static solution and the survey estimation/directional measurement will be the best achievable estimate with the proposed approach. So far a simple sag correction (if done) is derived and used based on standard cases of the borehole geometry.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Baker Hughes Company, "Optimal Well Trajectory, Directional, Survey and Static Load Monitoring", Technical Disclosure Commons, (February 27, 2025)
https://www.tdcommons.org/dpubs_series/7851