US3277838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas lift system
Assignee: Individual
•
Filing: 1966-01-10
•
Granted: 1966-10-11
•
Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Carlos R Canalizo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:10
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/122; E21B43/123; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2934; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86976
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A GAS LIFT VALVE FOR USE IN A WELL HAVING A FLOW CONDUCTOR EXTENDING THERETHROUGH AND PROVIDING A FIRST PASSAGE TO THE SURFACE OF THE WELL, THE WELL HAVING AN ANNULAR PASSAGE ABOUT SAID FLOW CONDUCTOR, ONE OF THE PASSAGES CONSTITUTING A LIFTING GAS PASSAGE THROUGH WHICH FLUID UNDER PRESSURE IS INTRODUCIBLE INTO THE WELL AND THE OTHER PASSAGE CONSTITUTING A WELL FLUID PASSAGE THROUGH WHICH WELL FLUIDS PRODUCED BY THE WELL ARE MOVABLE TO THE SURFACE, THE FLOW CONDUCTOR HAVING A LATERAL PORT, SAID GAS LIFT VALVE INCLUDING: A HOUSING CONNECTIBLE TO SAID FLOW CONDUCTOR, SAID HOUSING HAVING A PASSAGE ONE END OF WHICH COMMUNICATES WITH SAID LIFTING GAS PASSAGE AND THE OTHER END OF WHICH COMMUNICATES WITH SAID WELL FLUID PASSAGE THROUGH THE LATERAL PORT OF THE WELL FLOW CONDUCTOR WHEN SAID HOUSING IS CONNECTED TO SAID FLOW CONDUCTOR, SAID HOUSING HAVING A SEAT ABOUT SAID PASSAGE; A CLOSURE MOVABLY MOUNTED IN SAID HOUSING, SAID CLOSURE COMPRISING A FIRST ANNULAR SEAT SECTION ENGAGEABLE WITH SAID HOUSING SEAT AND HAVING A PASSAGE THERETHROUGH AND A SECOND SECTION, SAID FIRST SECTION HAVING A SEAT ABOUT ITS
Claim 2
Dependent Claim
186 words
A GAS LIFT VALVE FOR USE IN A WELL HAVING A FLOW CONDUCTOR EXTENDING THERETHROUGH AND PROVIDING A FIRST PASSAGE TO THE SURFACE OF THE WELL, THE WELL HAVING AN ANNULAR PASSAGE ABOUT SAID FLOW CONDUCTOR, ONE OF THE PASSAGES CONSTITUTING A LIFTING GAS PASSAGE THROUGH WHICH FLUID UNDER PRESSURE IS INTRODUCIBLE INTO THE WELL AND THE OTHER PASSAGE CONSTITUTING A WELL FLUID PASSAGE THROUGH WHICH WELL FLUIDS PRODUCED BY THE WELL ARE MOVABLE TO THE SURFACE, THE FLOW CONDUCTOR HAVING A LATERAL PORT, SAID GAS LIFT VALVE INCLUDING: A HOUSING CONNECTIBLE TO SAID FLOW CONDUCTOR, SAID HOUSING HAVING A PASSAGE ONE END OF WHICH COMMUNICATES WITH SAID LIFTING GAS PASSAGE AND THE OTHER END OF WHICH COMMUNICATES WITH SAID WELL FLUID PASSAGE THROUGH THE LATERAL PORT OF THE WELL FLOW CONDUCTOR WHEN SAID HOUSING IS CONNECTED TO SAID FLOW CONDUCTOR, SAID HOUSING HAVING A SEAT ABOUT SAID PASSAGE; A CLOSURE MOVABLY MOUNTED IN SAID HOUSING, SAID CLOSURE COMPRISING A FIRST ANNULAR SEAT SECTION ENGAGEABLE WITH SAID HOUSING SEAT AND HAVING A PASSAGE THERETHROUGH AND A SECOND SECTION, SAID FIRST SECTION HAVING A SEAT ABOUT ITS
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |