Conventional magnetic survey tools

Conventional magnetic survey tools

Conventional magnetic survey tools consist of a mechanical inclinometer, i.e. a pendulum and a compass to determine azimuth. They are used as magnetic single-shot (MSS) and magnetic multi-shot (MMS).

Conventional magnetic survey tools are cheap to run but less accurate than magnetic solid state tools. They should be run in a full length of NMDC. Surveys should not be used as definitive surveys, except for isolated and vertical wells (incl<5°).

Principle of conventional magnetic survey tools

Conventional magnetic survey tools measure inclination, azimuth and toolface. They . . .