US3334690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for installing and removing gas lift valves in a well
Assignee: Udell Inc
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Filing: 1964-06-01
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Granted: 1967-08-08
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Henry U Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:54
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B23/00; E21B23/03; E21B23/08; E21B43/12; E21B43/121; E21B43/122; E21B43/123; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0491
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
THE METHOD OF INSTALLING DEVICES IN A WELL HAVING A TUBING STRING, A PLURALITY OF MANDRELS IN SAID TUBING STRING, EACH OF SAID MANDRELS HAVING A SELECTIVE SEAT FOR ONE OF SAID DEVICES COMPRISING THE STEPS OF INSERTING A TRAIN OF SAID DEVICES IN SAID TUBING STRING, PUMPING A FLUID INTO SAID TUBING STRING ABOVE SAID TRAIN TO MOVE SAID TRAIN DOWN SAID TUBING STRING AND SEAT AND LATCH EACH DEVICE IN THE MANDREL IN WHICH IT WILL SEAT UNTIL ALL SAID DEVICES ARE SEATED IN THEIR MANDRELS.
Claim 2
Independent Claim
88 words
THE METHOD OF INSTALLING DEVICES IN A WELL HAVING A TUBING STRING, A PLURALITY OF MANDRELS IN SAID TUBING STRING, EACH OF SAID MANDRELS HAVING A SELECTIVE SEAT FOR ONE OF SAID DEVICES COMPRISING THE STEPS OF INSERTING A TRAIN OF SAID DEVICES IN SAID TUBING STRING, PUMPING A FLUID INTO SAID TUBING STRING ABOVE SAID TRAIN TO MOVE SAID TRAIN DOWN SAID TUBING STRING AND SEAT AND LATCH EACH DEVICE IN THE MANDREL IN WHICH IT WILL SEAT UNTIL ALL SAID DEVICES ARE SEATED IN THEIR MANDRELS.
Claim 3
Dependent Claim
172 words
IN COMBINATION WITH A PRODUCING WELL HAVING A TUBING STRING, A PLURALITY OF MANDRELS POSITIONED IN SAID TUBING STRING SELECTIVE SEATING MEANS IN EACH OF SAID MANDRELS, A PLURALITY OF GAS LIFT VALVES, SAID GAS LIFT VALVES HAVING ALTERNATELY OPERABLE LATCH MEANS AND SELECTIVE SEAT ENGAGING MEANS WHEREBY EACH ONE OF SAID VALVES MAY BE SELECTIVELY SEATED IN ONE OF SAID MANDRELS AND UNLATCHED FROM ANOTHER GAS LIFT VALVE AND UNSEATED AND LATCHED TO ANOTHER GAS LIFT VALVE, SAID GAS LIFT VALVES FITTING INTO SAID TUBING STRING FOR PUMPING THROUGH SAID TUBING STRING, FLUID COMMUNICATION MEANS IN EACH OF SAID MANDRELS BETWEEN THE INTERIOR AND EXTERIOR OF SAID MANDRELS, AND A FLUID OPERATED MOTOR RELEASABLY ENGAGEABLE WITH ONE OF SAID VALVES FOR MOVEMENT THROUGH THE TUBING IN RESPONSE TO FLUID PRESSURE TO MOVE A TRAIN OF SAID VALVES THROUGH THE TUBING AND UNLATCH AND LAND SUCCESSIVE VALVES IN SUCCESSIVE MANDRELS AND UPON REVERSE MOVEMENT THROUGH THE TUBING TO UNSEAT SAID VALVES AND FORM A TRAIN OF VALVES FOR REMOVAL FROM THE TUBING.
Claim 4
Dependent Claim
172 words
IN COMBINATION WITH A PRODUCING WELL HAVING A TUBING STRING, A PLURALITY OF MANDRELS POSITIONED IN SAID TUBING STRING SELECTIVE SEATING MEANS IN EACH OF SAID MANDRELS, A PLURALITY OF GAS LIFT VALVES, SAID GAS LIFT VALVES HAVING ALTERNATELY OPERABLE LATCH MEANS AND SELECTIVE SEAT ENGAGING MEANS WHEREBY EACH ONE OF SAID VALVES MAY BE SELECTIVELY SEATED IN ONE OF SAID MANDRELS AND UNLATCHED FROM ANOTHER GAS LIFT VALVE AND UNSEATED AND LATCHED TO ANOTHER GAS LIFT VALVE, SAID GAS LIFT VALVES FITTING INTO SAID TUBING STRING FOR PUMPING THROUGH SAID TUBING STRING, FLUID COMMUNICATION MEANS IN EACH OF SAID MANDRELS BETWEEN THE INTERIOR AND EXTERIOR OF SAID MANDRELS, AND A FLUID OPERATED MOTOR RELEASABLY ENGAGEABLE WITH ONE OF SAID VALVES FOR MOVEMENT THROUGH THE TUBING IN RESPONSE TO FLUID PRESSURE TO MOVE A TRAIN OF SAID VALVES THROUGH THE TUBING AND UNLATCH AND LAND SUCCESSIVE VALVES IN SUCCESSIVE MANDRELS AND UPON REVERSE MOVEMENT THROUGH THE TUBING TO UNSEAT SAID VALVES AND FORM A TRAIN OF VALVES FOR REMOVAL FROM THE TUBING.
Claim 5
Dependent Claim
84 words
IN COMBINATION WITH A PRODUCTION WELL HAVING A PRODUCTION TUBING AND A MACARONI STRING, A PLURALITY OF GAS LIFT VALVES, SAID GAS LIFT VALVES HAVING UPPER AND LOWER RELEASABLE ENGAGING MEANS FOR ENGAGEMENT WITH OTHER GAS LIFT VALVES TO FORM A TRAIN OF GAS LIFT VALVES, EACH OF SAID GAS LIFT VALVES HAVING A SEALING MEMBER ADAPTED TO SEAL AGAINST THE INTERIOR OF SAID MACARONI STRING WHEREBY A TRAIN OF GAS LIFT VALVES MAY BE PUMPED INTO SAID PRODUCING WELL THROUGH SAID MACARONI STRING.
Claim 6
Dependent Claim
84 words
IN COMBINATION WITH A PRODUCTION WELL HAVING A PRODUCTION TUBING AND A MACARONI STRING, A PLURALITY OF GAS LIFT VALVES, SAID GAS LIFT VALVES HAVING UPPER AND LOWER RELEASABLE ENGAGING MEANS FOR ENGAGEMENT WITH OTHER GAS LIFT VALVES TO FORM A TRAIN OF GAS LIFT VALVES, EACH OF SAID GAS LIFT VALVES HAVING A SEALING MEMBER ADAPTED TO SEAL AGAINST THE INTERIOR OF SAID MACARONI STRING WHEREBY A TRAIN OF GAS LIFT VALVES MAY BE PUMPED INTO SAID PRODUCING WELL THROUGH SAID MACARONI STRING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |