US3134442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining wells
Assignee: Pan American Petroleum Corp
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Filing: 1961-05-05
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Granted: 1964-05-26
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Earl R Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:25
CPC Classifications
E; E21; E21B; E21B29/00; E21B29/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN APPARATUS FOR PLACING A PLASTIC LINER IN A WELL WHICH INCLUDES A TUBULAR BODY, MEANS TO ATTACH SAID BODY TO A RUNNING STRING SO THAT THJE INSIDE OF SAID BODY WILL BE IN DIRECT FLUID COMMUNICATION WITH SAID RUNNING STRING, A RESILIENT TUBE SURROUNDING SAID BODY, A THERMOSETTING RESIN-IMPREGNATED EXPANSIBLE SLEEVE OF LAMINATED FIBER SURROUNDING SAID TUBE, MEANS TO HERMETICALLY SEAL THE ENDS OF SAID TUBE TO SAID BODY, A FIRST FLUID PASSAGE FROM THE INSIDE OF SAID BODY TO THE EINSIDE OF SAID TUBE, A SECOND FLUID PASSAGE FROM THE INSIDE OF SAID BODY TO THE WELL BORE, A RELLIEF VALVE IN SAID SECOND FLUID PASSAGE TO LIMIT THE DIFFERENTIAL PRESSURE BETWEEN THE INSIDE OF SAID BODY AND THE OUTSIDE OF SAID BODY, AND A STANDING VALVE IN SAID SECOND FLUID PASSAGE TO PERMIT WELL FLUIDS TO ENTER SAID BODY WHEN THE PRESSURE IN SAID WELL IS GREATER THAN THE FLUID PRESSURE WITHIN SAID BODY.
Claim 2
Independent Claim
157 words
AN APPARATUS FOR PLACING A PLASTIC LINER IN A WELL WHICH INCLUDES A TUBULAR BODY, MEANS TO ATTACH SAID BODY TO A RUNNING STRING SO THAT THJE INSIDE OF SAID BODY WILL BE IN DIRECT FLUID COMMUNICATION WITH SAID RUNNING STRING, A RESILIENT TUBE SURROUNDING SAID BODY, A THERMOSETTING RESIN-IMPREGNATED EXPANSIBLE SLEEVE OF LAMINATED FIBER SURROUNDING SAID TUBE, MEANS TO HERMETICALLY SEAL THE ENDS OF SAID TUBE TO SAID BODY, A FIRST FLUID PASSAGE FROM THE INSIDE OF SAID BODY TO THE EINSIDE OF SAID TUBE, A SECOND FLUID PASSAGE FROM THE INSIDE OF SAID BODY TO THE WELL BORE, A RELLIEF VALVE IN SAID SECOND FLUID PASSAGE TO LIMIT THE DIFFERENTIAL PRESSURE BETWEEN THE INSIDE OF SAID BODY AND THE OUTSIDE OF SAID BODY, AND A STANDING VALVE IN SAID SECOND FLUID PASSAGE TO PERMIT WELL FLUIDS TO ENTER SAID BODY WHEN THE PRESSURE IN SAID WELL IS GREATER THAN THE FLUID PRESSURE WITHIN SAID BODY.
References Cited (Backward Citations)
US1709940A
Cited
US2231282A
Cited
US2287076A
Cited
US2441894A
Cited
US2742968A
Cited
US2804148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |