Patent ID: 11898432
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 19:
20. The method of claim 12, wherein the combining in (c) comprises:
processing the triaxial accelerometer measurements to obtain accelerometer based toolface angle measurements;
(ii) processing the gyroscopic sensor measurements to obtain gyroscope based toolface angle measurements;
(iii) low pass filtering the accelerometer based toolface angle measurements to obtain filtered accelerometer based toolface angle measurements;
(iv) high pass filtering the gyroscope based toolface angle measurements to obtain filtered gyroscope based toolface angle measurements;
(v) combining the filtered accelerometer based toolface angle measurements and the filtered gyroscope based toolface angle measurements to obtain toolface angle measurements; and
(vi) processing the toolface angle measurements to obtain the accelerometer measurements.