Wells – Valves – closures or changeable restrictors – Fluid operated
Patent
1994-05-13
1995-05-02
Britts, Ramon S.
Wells
Valves, closures or changeable restrictors
Fluid operated
166328, E21B 3410
Patent
active
054110971
ABSTRACT:
A well testing tool for use in high pressure wells where it is desired to pressure test the equipment includes a mandrel that is ported to the interior of the test string. The ported mandrel allows pressure to equalize between the interior of the string and an annular chamber formed between the mandrel and the tool housing, and thereby eliminates the tendency of the mandrel to deform into the chamber.
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Manke Kevin R.
Ringgenberg Paul
Britts Ramon S.
Druce Tracy W.
Halliburton Company
Tsay Frank S.
Watkins Marchella D.
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