Conventional gyro: pre-survey checklist and running procedure
This article presents pre-survey checklist and running procedure for conventional gyro survey.
Pre-wellbore survey checklist
- Before starting to drill a new well and before every new wellbore survey, ensure that there is a foresight (directional reference) and that the direction from the wellhead has been determined by the Topographic Department.
- Ensure that the wellbore survey Engineer is using the correct foresight. Sometimes there is more than one foresight in use at the same location.
- Ensure that the wellbore survey Engineer has been . . .