CPC E21B 47/0228 (2020.05) [E21B 7/04 (2013.01); E21B 44/00 (2013.01)] | 20 Claims |
1. A method for determining gravity toolface azimuth, the method comprising:
rotating a logging tool about a center axis in a wellbore;
positioning an accelerometer sensor within the logging tool at a first radial distance from the center axis, wherein the accelerometer sensor is positioned along a radial line extending from the center axis to a gravity toolface of the logging tool;
positioning an angular gyroscope sensor within the logging tool at a second radial distance from the center axis;
receiving, at a controller, accelerometer sensor data from a single axis sensor of the accelerometer sensor and angular gyroscope sensor data from the angular gyroscope sensor, wherein the accelerometer sensor data and the angular gyroscope sensor data are measured during each time segment of a plurality of time segments as the logging tool rotates;
determining, via the controller and based on the accelerometer sensor data from only the single axis sensor, a radial acceleration component for each of the plurality of time segments of the accelerometer sensor data from the single axis sensor for each respective time segment of the plurality of time segments;
determining, via the controller, a gain and an offset of the angular gyroscope sensor based on the radial acceleration component for each of the respective time segments; and
determining, via the controller, the gravity toolface azimuth of the logging tool as a function of time based on the gain, the offset, and the angular gyroscope sensor data for each of the respective time segments.
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