Well test apparatus and methods

Details Well test apparatus and methods Well test apparatus and methods

E - Fixed Constructions

21

B

166/2

E21B 34/14 (2006.01) E21B 23/00 (2006.01) E21B 23/02 (2006.01) E21B 47/06 (2006.01) E21B 49/08 (2006.01)

Patent

CA 1232835

ABSTRACT OF THE DISCLOSURE A well test tool for closing a well at a downhole location below the well packer and near the formation to be tested, the apparatus being openable and closable from the surface by tensioning and relaxing the cable or wire line on which it is lowered into the well, the test tool having a lock mechanism which locks automatically upon entering its landing receptacle in the well and is further provided with a releasing mechanism for unlocking the test tool automatically after a present number of open/close cycles have been performed. A bypass landing receptacle is provided which permits high rates of flow during testing. A modified bypass landing receptacle is provided to permit use of the apparatus above the well packer, as in wells having an existing packer therein. Methods of testing wells are also disclosed.

477297

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