Horizontal well surveying High inclination wells (above 70°) and specially horizontal wells have specific difficulties…

Definition of Surveying Terms Definition of Surveying Terms from accelerometer to wireline Accelerometer A device…

Wireline Surveying Techniques Most directional survey tools take surveys at discrete directional survey stations, with…

Directional drilling plan with 12.25″ pilot hole, 22″ hole hole opener and 24″ underreamer This…

Inertial Navigation Survey Systems Inertial Navigation Systems (INSs) are capable of accurately measuring the position…

Directional drilling plan with hole opener and under-reamer This article describes an example of a…

Slim hole, coiled tubing and under-balanced drilling surveying Since the mid eighties there has been…

Wireline steering techniques This technique has the advantage of real time readings from down hole,…