Pumps – Motor driven – Fluid motor
Patent
1996-06-03
1998-09-15
Izaguirre, Ismael
Pumps
Motor driven
Fluid motor
417401, 166264, F04B 1700, E21B 4300
Patent
active
058070826
ABSTRACT:
An automatic downhole pump assembly comprising a housing, a sleeve slidably disposed within the housing, a piston defining an interior volume, the piston slidably disposed within the sleeve and within the housing such that a fluid pressure within the interior volume causes the sleeve to oscillate relative to the housing and causes the piston to oscillate relative to the sleeve and the housing, and a pump which is operably associated with the piston such that fluid is pumped through the pump assembly as the piston oscillates relative to the housing.
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Halliburton Company pamphlet entitled "New Halliburton Continuous Retrievable Sampler" as published in Nov., 1959, 4 pgs.
Halliburton Company Technical Data Sheet for Continuous Retrievable Sampler as published Jul., 1959, 2 pgs.
Chisholm, Pat, "New Test Tool Samples Several Zones In One Trip", Reprinted from World Oil, May, 1960, Distributed by Halliburton Oil Well Cementing Company, May, 1960, 4 pgs.
Ringgenberg Paul D.
Skinner Neal G.
Halliburton Energy Service,s Inc.
Herman Paul I.
Imwalle William M.
Izaguirre Ismael
Youst Lawrence R.
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