Casing pump
A natural gas operated pump is described for use in the casing of an oil well, comprising: a tubular pump body having an open lower end for admitting well fluids to the interior of the pump body and an open upper end, wherein a downwardly facing seating surface is formed on the inner periphery of the pump body adjacent the upper end thereof; means for forming a seal between the pump body and the casing of the well; a rod extending longitudinally through the seating surface formed in the pump body and protruding from the upper end of the pump body; a valve member mounted on the rod below the seating surface and shaped to mate with the seating surface; and means for vertically positioning the rod in proportion to fluid pressure within the pump body.
- Assignee:
- Bassco, Inc., Washington, OK
- Patent Number(s):
- US 4696624
- OSTI ID:
- 6054610
- Resource Relation:
- Patent File Date: Filed date 8 Apr 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OIL WELLS
WELL CASINGS
PUMPS
DESIGN
CEMENTING
HYDRAULICS
INSTALLATION
NATURAL GAS
POSITIONING
PUMPING
RODS
SEALS
TUBES
VALVES
WELL COMPLETION
WORKING FLUIDS
CONTROL EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FLUID MECHANICS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MECHANICS
WELLS
020300* - Petroleum- Drilling & Production