US3131765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible well packer and bridge plug
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1962-04-13
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Granted: 1964-05-05
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Expires: 1982-04-13
Abstract
No abstract record available.
Inventors
- 👤 William D Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:05
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1293; E21B33/1294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A WELL PACKER APPARATUS ADAPTED TO BE SET IN A WELL BORE AND INCLUDING A PACKER BODY HAVING A PASSAGE AND MEANS THEREON FOR SECURING SAID PACKER BODY IN THE WELL BORE; A PLUG IN SAID PASSAGE TO PREVENT FLOW OF FLUID THERETHROUGH, INCLUDING A PLUG BODY IN SAID PASSAGE HAVING LATCH MEANS ENGAGING SAID PACKER BODY TO HOLD SAID PLUG BODY AGAINST DOWNWARD MOVEMENT IN SAID PASSAGE, SAID PLUG BODY HAVING AN EQUALIZER PASSAGE THROUGH WHICH FLUID CAN FLOW BETWEEN REGIONS ABOVE AND BELOW SAID PLUG BODY, RETAINER MEANS ENGAGING SAID LATCH MEANS TO PREVENT RELEASE OF SAID LATCH MEANS FROM SAID PACKER BODY, AND VALVE MEANS ON SAID RETAINER MEANS PILOTED OVER A PORTION OF SAID PLUG BODY TO CLOSE SAID EQUALIZER PASSAGE WHEN SAID RETAINER MEANS ENGAGES SAID LATCH MEANS, SAID RETAINER MEANS BEING MOVABLE TO A RELEASED POSITION WITH RESPECT TO SAID LATCH MEANS AND SLIDING SAID VALVE MEANS OVER SAID PORTION OF THE PLUG BODY TO A POSITION OPENING SAID EQUALIZER PASSAGE.
Claim 2
Dependent Claim
167 words
A WELL PACKER APPARATUS ADAPTED TO BE SET IN A WELL BORE AND INCLUDING A PACKER BODY HAVING A PASSAGE AND MEANS THEREON FOR SECURING SAID PACKER BODY IN THE WELL BORE; A PLUG IN SAID PASSAGE TO PREVENT FLOW OF FLUID THERETHROUGH, INCLUDING A PLUG BODY IN SAID PASSAGE HAVING LATCH MEANS ENGAGING SAID PACKER BODY TO HOLD SAID PLUG BODY AGAINST DOWNWARD MOVEMENT IN SAID PASSAGE, SAID PLUG BODY HAVING AN EQUALIZER PASSAGE THROUGH WHICH FLUID CAN FLOW BETWEEN REGIONS ABOVE AND BELOW SAID PLUG BODY, RETAINER MEANS ENGAGING SAID LATCH MEANS TO PREVENT RELEASE OF SAID LATCH MEANS FROM SAID PACKER BODY, AND VALVE MEANS ON SAID RETAINER MEANS PILOTED OVER A PORTION OF SAID PLUG BODY TO CLOSE SAID EQUALIZER PASSAGE WHEN SAID RETAINER MEANS ENGAGES SAID LATCH MEANS, SAID RETAINER MEANS BEING MOVABLE TO A RELEASED POSITION WITH RESPECT TO SAID LATCH MEANS AND SLIDING SAID VALVE MEANS OVER SAID PORTION OF THE PLUG BODY TO A POSITION OPENING SAID EQUALIZER PASSAGE.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |