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U.S. Department of Energy
Office of Scientific and Technical Information

Well production system

Patent ·
OSTI ID:5604308
A well production system is described which consists of: a casing; a tubing within the casing; a subsurface safety valve controlling flow through the tubing; a submersible pump in the lower end of the tubing for delivering liquid through the tubing; a line extending downwardly in the casing-tubing annulus delivering power from the surface to the pump; a side pocket mandrel in the tubing having a valve pocket; side port means in the valve pocket angled upwardly and outwardly; a tailpipe extending downwardly from the side pocket alongside and substantially parallel throughout its length with the axis of the tubing; a packer carried on the tubing between the side pocket mandrel and pump; the packer sealing between the casing and each of the power line, tubing and tailpipe; retrievable valve means in the valve pocket controlling flow between the side port and the tailpipe; the valve means having a tubular body with upwardly and outwardly extending flowway means in the side wall thereof and in communication with the port means and the lower end of the body to provide a cooperating path for gas flow and for passage of sound waves; the valve means provided with a valve seat and valve member below the flowway means providing when open sufficient unobstructed opening to permit ready passage of sound waves therethrough; and means for opening and closing the subsurface safety valve and retrievable valve means.
Assignee:
Otis Engineering Corp., Dallas, TX
Patent Number(s):
US 4589482
OSTI ID:
5604308
Country of Publication:
United States
Language:
English