Multiple test cased hole formation tester with in-line perforati

Details Multiple test cased hole formation tester with in-line perforati Multiple test cased hole formation tester with in-line perforati

1996-11-14

1998-06-16

Tsay, Frank

Wells

Means for perforating, weakening, bending or separating pipe...

With disparate below ground feature

166100, E21B 4910

Patent

active

057656371

ABSTRACT:
An apparatus for perforating a wall, such as the casing wall of a well hole, taking a sample of the fluids which may be behind the wall, and subsequently sealing the perforation so formed in the wall, wherein the perforating portion, the sampling portion and the sealing portion are operably disposed in the apparatus, so as to permit all of the perforating, sampling and sealing functions to be carried out without substantial movement of the apparatus between functions.

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