Wells – Processes – Producing the well
Patent
1991-09-24
1993-06-22
Dang, Hoang C.
Wells
Processes
Producing the well
166 68, 166 73, 166105, 1663051, 417553, E21B 4300
Patent
active
052209628
ABSTRACT:
A new pump or injection apparatus is adapted to be connected between a pipe and a valve and is adapted to either pump well fluids from a wellbore or inject fluids into a formation traversed by the wellbore. The valve includes a full bore passage and a surrounding inlet flow channel. The new pump or injection apparatus includes an apparatus responsive to a movement of the pipe in a longitudinal direction for closing the full bore passage of the valve and opening the surrounding inlet flow channel; when the full bore passage is closed and inlet flow channel is opened, a first section rotates circumferentially in response to a circumferential rotation of the pipe; a second section reciprocates back and forth in a longitudinal direction in response to the circumferential rotation of the first section; and a third section either receives the well fluids uphole wellbore and subsequently pushes the received well fluids uphole or injects fluids in the formation traversed by the wellbore in response to the reciprocation of the second section. The full bore passage of the valve optionally enables other tools, such as drill stem test tools suspending by wireline, to pass through the pump apparatus.
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Anyan Steven L.
Muller Laurent E.
Bouchard John H.
Dang Hoang C.
Garrana Henry N.
Schlumberger Technology Corporation
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