US4589482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well production system
Assignee: Camco International Inc
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Filing: 1984-06-04
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Granted: 1986-05-20
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Expires: 2004-06-04
Abstract
Abstract A well production system in which a submersible pump is utilized in producing the well and gas produced by the well is bypassed through a packer with a special control valve which is constructed and arranged to permit ready passage of sound waves through the valve to facilitate determining the fluid depth in the well.
Inventors
- 👤 Russell I. Bayh, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:47
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/10; E21B34/105; E21B47/00; E21B47/04; E21B47/047
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
230 words
A well production system comprising: 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 said 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 said valve pocket angled upwardly and outwardly; a tailpipe extending downwardly from said side pocket alongside and substantially parallel throughout its length with the axis of said tubing; a packer carried on the tubing between the side pocket mandrel and pump; said packer sealing between the casing and each of said power line, tubing and tailpipe; retrievable valve means in said valve pocket controlling flow between said side port and said tailpipe; said valve means having a tubular body with upwardly and outwardly extending flowway means in the side wall thereof and in communication with said port means and the lower end of said body to provide a cooperating path for gas flow and for passage of sound waves; said valve means provided with a valve seat and valve member below said flowway means providing when open sufficient unobstructed opening to permit ready passage of sound waves therethrough; and means for opening and closing said subsurface safety valve and retrievable valve means.
Claim 2
Dependent Claim
230 words
A well production system comprising: 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 said 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 said valve pocket angled upwardly and outwardly; a tailpipe extending downwardly from said side pocket alongside and substantially parallel throughout its length with the axis of said tubing; a packer carried on the tubing between the side pocket mandrel and pump; said packer sealing between the casing and each of said power line, tubing and tailpipe; retrievable valve means in said valve pocket controlling flow between said side port and said tailpipe; said valve means having a tubular body with upwardly and outwardly extending flowway means in the side wall thereof and in communication with said port means and the lower end of said body to provide a cooperating path for gas flow and for passage of sound waves; said valve means provided with a valve seat and valve member below said flowway means providing when open sufficient unobstructed opening to permit ready passage of sound waves therethrough; and means for opening and closing said subsurface safety valve and retrievable valve means.
Claim 3
Dependent Claim
12 words
The system of claim 1 wherein said valve member is a flapper.
Claim 4
Dependent Claim
74 words
The system of claim 1 wherein said valve member is a flapper and a tubular actuator is slidable in said body to control opening and closing of said flapper; said actuator having upwardly and outwardly extending passageway means cooperable with the bore through said actuator and said flowway means to provide a path for gas and sound waves when said flapper is open and means maintaining said passageway means aligned with said flowway means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |