Pulled 80,000 # over drill string weight and drill string pulled free. Moved pipe and circulated drilling fluid to condition and ensure uniform properties in system. Attempted to pull drill rod and wireline rope socket sheared. Pulled drill string out of the well. Replaced damaged components of coring tools. Lowered drilling/coring assembly into the well in stages, with drill rod in place. Circulated at numerous depths to ensure hole stability. Washed to 4,370 ft measured depth (MD). Rigged up wireline survey equipment and surveyed for inclination and azimuth. Drilled from 4,441 to 4,535 ft MD/4,006 to 4,087 ft true vertical depth. Circulated and started wiper trip. |
Completed wiper trip. Drilled from 4,535 to 4,659 ft measured depth (MD)/4,092 to 4,205 ft true vertical depth (TVD). Pulled bit up to 4,121 ft MD to wipe hole. Drilled from 4,659 to 4,733 ft MD/~4,205 to ~4,272 ft TVD. Ran gyro survey for inclination and azimuth information. Pulled drill/coring assembly out of well. Picked up directional drilling assembly and lowered same into well. |