Formation Strength Tests Profiles and Definitions
Formation strength tests (FST’s - sometimes referred to as “leak-off tests” (L.O.T) or “limit tests” or “formation intake tests” (F.I.T)) measure the formation strength below the casing. FST’s, shall be done below all casing shoes (or outside milled casing windows for side-tracks) in exploration and appraisal wells.
For development wells, the FST will be done below casing shoes (or outside milled casing windows for sidetracks) above hydrostatically pressured hydrocarbon bearing and/or over pressured sections in all other wells.
Formation Strength Test Profiles . . .