Method and system for well testing

Details Method and system for well testing Method and system for well testing

E - Fixed Constructions

21

B

166/2

E21B 49/00 (2006.01) E21B 34/14 (2006.01) E21B 49/08 (2006.01)

Patent

CA 1143279

METHOD AND SYSTEM FOR WELL TESTING Abstract of the Disclosure A well testing system and method in which a by-pass valve is positioned in the tubing and a probe run on a line from the surface opens and closes the valve with vertical movement of the probe. The probe when landed in the valve is exposed to formation fluids and may transmit back to the surface, or may record information about the formation. The probe may also collect a sample of fluid to return to the surface with the probe. This invention relates to method and apparatus for testing wells. It is desirable to be able to test a petroleum formation under both static and flowing conditions. Equipment has been proposed for testing under static conditions. See Kingelin Patents 4,051,897 and 4,123,452. It has also been proposed to be able to open and close à valve controlling flow from the formation in such a test program. See Nix U. S. Patent No. 4,047,564. So far as is known the prior art does not teach a simple wireline retrievable by-pass valve which can be landed in a well tubing together with an operating probe which can be manipulated to open and close a by-pass valve and which can either collect data or samples or can transmit data to the surface over a conventional electric line.

359760

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