US3266574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential pressure adapter for automatic cycle well control
Assignee: Individual
•
Filing: 1963-12-04
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Granted: 1966-08-16
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Gary R Gandy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/06; E21B43/00; E21B43/12; E21B43/121; E21B43/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN COMBINATION WITH A FLOWING GAS WELL HAVING A CASING, A TUBING STRING THEREIN HAVING ITS LOWER END OPENING AT THE BOTTOM OF THE CASING AND A GAS FLOW ANNULUS BETWEEN SAID TUBING STRING AND CASINGG A NORMALLY OPEN GAS FLOW LINE COMMUNICATING WITH SAID TUBING, A NORMALLY CLOSED LIQUID DISCHARGE CONNECTED TO SAID TUBING FOR THE INTERMITTENT DISCHARGE BY CASING GAS PRESSURE OF LIQUIDS ACCUMULATING IN SAID CASING AND TUBING, AND INTERMITTENTLY OPERABLE CYCLIC FLOW CONTROL DEVICE INCLUDING AN INTERMEDIATE TO OPEN SAID LIQUID DISCHARGE LINE, AN ADAPTED INCLUDING A DIFFERENTIAL PRESSURE SENSING UNIT CONNECTED TO SAID CASING AND TUBING, MEANS CONNECTING SAID SENSING UNIT TO SAID CYCLIC FLOW CONTROL DEVICE AND PRE-
Claim 2
Dependent Claim
114 words
IN COMBINATION WITH A FLOWING GAS WELL HAVING A CASING, A TUBING STRING THEREIN HAVING ITS LOWER END OPENING AT THE BOTTOM OF THE CASING AND A GAS FLOW ANNULUS BETWEEN SAID TUBING STRING AND CASINGG A NORMALLY OPEN GAS FLOW LINE COMMUNICATING WITH SAID TUBING, A NORMALLY CLOSED LIQUID DISCHARGE CONNECTED TO SAID TUBING FOR THE INTERMITTENT DISCHARGE BY CASING GAS PRESSURE OF LIQUIDS ACCUMULATING IN SAID CASING AND TUBING, AND INTERMITTENTLY OPERABLE CYCLIC FLOW CONTROL DEVICE INCLUDING AN INTERMEDIATE TO OPEN SAID LIQUID DISCHARGE LINE, AN ADAPTED INCLUDING A DIFFERENTIAL PRESSURE SENSING UNIT CONNECTED TO SAID CASING AND TUBING, MEANS CONNECTING SAID SENSING UNIT TO SAID CYCLIC FLOW CONTROL DEVICE AND PRE-
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |