Surveying

Wellpath planning and anti-collision monitoring – COMPASS The Drilling Engineer must ensure that the wellhead…

Tie-In Data Tie-in data shall be provided by the Operations Engineer and sent to the…

Survey policy The survey accuracy requirements are dictated by the following: 1. Targets The geological…

Directional Drilling Responsibilities The following table lists the responsibilities for the implementation, execution, and quality…

Correction programmes for magnetic survey The correction programme corrects the inclination and azimuth values for…

Non-Magnetic Drill Collars Requirements relating to NMDC use when surveying with magnetic instruments.. NMDC Length…

Borehole representation The wellpath is defined by a survey which gives the positions of the…

Conventional magnetic single-shot survey tools: Pre-survey checklist and Running procedures Pre-survey checklist & Running procedures…

Guidelines for Rotary Directional Drilling All rotary BHA’s have a tendency to build and directional…

Correction for Magnetic Azimuths The difference between the current Magnetic North for the location and…