Surveying

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…

Surveying Wells with No Anticipated Well Control Problems Surveying guidelines for wells with no potential…

Magnetic Single Shots The Magnetic Single Shot survey (MSS) is an accurate field-proven instrument measuring…

Steerable Systems Deviated wells are normally drilled using a steerable system which is a combination…

Electronic Magnetic Multi-Shots Electronic Magnetic Multi-Shots (EMMS) are a definitive multi-shot surveying instruments. However, MWD…

Directional Surveying Standards The following directional surveying standard are recommended: All exploration wells shall be…