Patent ID: 6116340
Filing Date: 2000-09-12
Classification: E21B

Abstract:
In a wellbore having a string of production tubing therein which extends from the surface of the earth to a point substantially adjacent a subterranean producing formation, a method for carrying out a build-up pressure test of said formation, said method comprising:lowering a string of coiled tubing through said production tubing to a point substantially adjacent said formation;unloading said wellbore by forcing fluids standing within said wellbore to the surface and reestablishing flow from said formation into said wellbore prior to isolating said formation by actuating a jet pump which is carried by said string of coiled tubing and which is positioned substantially adjacent said formation to force said fluids in said wellbore towards said surface;isolating said formation from said wellbore above said formation by setting a packer which is carried on said coiled tubing string; andsensing the pressure within said wellbore adjacent said formation.