US3332498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote automatic control of subsurface valves
Assignee: Individual
•
Filing: 1964-11-12
•
Granted: 1967-07-25
•
Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Jr John S Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:16
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/10; E21B34/105; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
IN COMBINATION, APPARATUS CONNECTIBLE IN A WELL TUBING STRING AND INCLUDING A TUBULAR BODY HAVING FLOW PORTING AND A FLOW CONTROL MEMBER MOVABLE TO CONTROL THE UPWARD FLOW OF PRODUCTION FLUID IN SAID PORTING, SAID APPARATUS INCLUDING ACTUATOR STRUCTURE WITH PISTON SURFACES LOCATED FOR EXPOSURE TO PRODUCTION FLUID PRESSURE AND CONTROL FLUID PRESSURE SO AS TO RESPOND TO A RELATIVE CHANGE IN THE DIFFERENTIAL BETWEEN SAID PRESSURES TO EFFECT SAID MEMBER MOVEMENT, THE APPARATUS FORMING A CONTROL CHAMBER TO CONTAIN SAID CONTROL FLUID PRESSURE, AND SAID APPARATUS INCLUDING MEANS TO COMMUNICATE PRODUCTION FLUID PRESSURE TO THE CONTROL CHAMBER INTERIOR AND TO CONTROLLABLY BLOCK ESCAPE OF FLUID PRESSURE WITHIN THE CHAMBER INTERIOR.
Claim 2
Dependent Claim
111 words
IN COMBINATION, APPARATUS CONNECTIBLE IN A WELL TUBING STRING AND INCLUDING A TUBULAR BODY HAVING FLOW PORTING AND A FLOW CONTROL MEMBER MOVABLE TO CONTROL THE UPWARD FLOW OF PRODUCTION FLUID IN SAID PORTING, SAID APPARATUS INCLUDING ACTUATOR STRUCTURE WITH PISTON SURFACES LOCATED FOR EXPOSURE TO PRODUCTION FLUID PRESSURE AND CONTROL FLUID PRESSURE SO AS TO RESPOND TO A RELATIVE CHANGE IN THE DIFFERENTIAL BETWEEN SAID PRESSURES TO EFFECT SAID MEMBER MOVEMENT, THE APPARATUS FORMING A CONTROL CHAMBER TO CONTAIN SAID CONTROL FLUID PRESSURE, AND SAID APPARATUS INCLUDING MEANS TO COMMUNICATE PRODUCTION FLUID PRESSURE TO THE CONTROL CHAMBER INTERIOR AND TO CONTROLLABLY BLOCK ESCAPE OF FLUID PRESSURE WITHIN THE CHAMBER INTERIOR.
Claim 3
Independent Claim
119 words
THE METHOD CONTROLLING VERTICAL FLOW OF PRODUCTION FLUID IN A WELL TUBING STRING, THAT INCLUDES LOWERING A PRODUCTION FLOW CONTROL VALVE AND ACTUATOR ASSEMBLY WITHIN AND RELATIVE TO THE TUBING STRING TO A SUB-SURFACE LOCATION IN THE STRING THEREBY LOCALLY CONFINING CONTROL FLUID PRESSURE IN A SUB-SURFACE ZONE FOR COMMUNICATION TO THE ACTUATOR, MAINTAINING A PATH FOR COMMUNICATION OF THE PRESSURE OF PRODUCTION FLUID TO SAID ZONE, WHILE CONTROLLABLY BLOCKING ESCAPE OF CONTROL FLUID PRESSURE FROM SAID ZONE TO THE PRODUCTION FLUID OUTSIDE SAID ZONE, AND COMMUNICATING SAID PRODUCTION FLUID PRESSURE AND CONTROL FLUID PRESSURE TO SAID ASSEMBLY CONDITIONING THE ASSEMBLY TO OPERATE IN RESPONSE TO A PREDETERMINED DECLINE OF PRODUCTION FLUID PRESSURE RELATIVE TO SAID CONFINED CONTROL PRESSURE.
Claim 4
Independent Claim
119 words
THE METHOD CONTROLLING VERTICAL FLOW OF PRODUCTION FLUID IN A WELL TUBING STRING, THAT INCLUDES LOWERING A PRODUCTION FLOW CONTROL VALVE AND ACTUATOR ASSEMBLY WITHIN AND RELATIVE TO THE TUBING STRING TO A SUB-SURFACE LOCATION IN THE STRING THEREBY LOCALLY CONFINING CONTROL FLUID PRESSURE IN A SUB-SURFACE ZONE FOR COMMUNICATION TO THE ACTUATOR, MAINTAINING A PATH FOR COMMUNICATION OF THE PRESSURE OF PRODUCTION FLUID TO SAID ZONE, WHILE CONTROLLABLY BLOCKING ESCAPE OF CONTROL FLUID PRESSURE FROM SAID ZONE TO THE PRODUCTION FLUID OUTSIDE SAID ZONE, AND COMMUNICATING SAID PRODUCTION FLUID PRESSURE AND CONTROL FLUID PRESSURE TO SAID ASSEMBLY CONDITIONING THE ASSEMBLY TO OPERATE IN RESPONSE TO A PREDETERMINED DECLINE OF PRODUCTION FLUID PRESSURE RELATIVE TO SAID CONFINED CONTROL PRESSURE.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |