Patent FR860982A successfully refreshed from Google Patents.
Patent US3191680A successfully refreshed from Google Patents.
US3191680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of setting metallic liners in wells
Assignee: Pan American Petroleum Corp
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Filing: 1962-03-14
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Granted: 1965-06-29
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Renic P Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:02
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; E21B43/103; E21B43/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A METHOD FOR SETTING A METALLIC LINER IN SEALED ENGAGEMENT WITH THE WALL OF A PREVIOUSLY UNLINED PORTION OF A WELL COMPRISING MOUNTING A LONGITUDINALLY CORRUGATED TUBE OF A MALLEABLE METAL ON A MEANS FOR LOWERING SAID TUBE INTO SAID WELL, SAID TUBE HAVING AN INTERNAL CROSSSECTIONAL PERIMETER BETWEEN ABOUT 98 AND ABOUT 110 PERCENT AS GREAT AS THE FINAL DESIRED INTERNAL CROSS-SECTIONAL PERIMETER OF SAID LINER, APPLYING AROUND SAID CORRUGATED TUBE A MAT OF GLASS FIBERS, SATURATING SAID MAT WITH A LIQUID RESIN CAPABLE OF BEING SET TO A HARDENED STATE, LOWERING INTO SAID WELL TO THE DESIRED LEVEL FOR SAID LINER SAID TUBE WITH ITS SURROUNDING LAYER OF RESIN-SATURATED MAT OF GLASS FIBERS, EXPANDING SAID TUBE INTO SUBSTANTIALLY CYLINDRICAL SHAPE IN CONTACT WITH THE WALL OF SAID PREVIOUSLY UNLINED PORTION OF SAID WELL WHILE SAID RESIN IS IN A LIQUID STATE, CURING SAID RESIN TO A HARDENED STATE, AND WITHDRAWING FROM SAID WELL SAID MEANS FOR LOWERING SAID TUBE INTO SAID WELL, WHEREBY A METALLIC LINER IS FORMED AND BONDED SECURELY TO EARTH FORMATIONS PENETRATED BY SAID WELL.
Claim 2
Independent Claim
180 words
A METHOD FOR SETTING A METALLIC LINER IN SEALED ENGAGEMENT WITH THE WALL OF A PREVIOUSLY UNLINED PORTION OF A WELL COMPRISING MOUNTING A LONGITUDINALLY CORRUGATED TUBE OF A MALLEABLE METAL ON A MEANS FOR LOWERING SAID TUBE INTO SAID WELL, SAID TUBE HAVING AN INTERNAL CROSSSECTIONAL PERIMETER BETWEEN ABOUT 98 AND ABOUT 110 PERCENT AS GREAT AS THE FINAL DESIRED INTERNAL CROSS-SECTIONAL PERIMETER OF SAID LINER, APPLYING AROUND SAID CORRUGATED TUBE A MAT OF GLASS FIBERS, SATURATING SAID MAT WITH A LIQUID RESIN CAPABLE OF BEING SET TO A HARDENED STATE, LOWERING INTO SAID WELL TO THE DESIRED LEVEL FOR SAID LINER SAID TUBE WITH ITS SURROUNDING LAYER OF RESIN-SATURATED MAT OF GLASS FIBERS, EXPANDING SAID TUBE INTO SUBSTANTIALLY CYLINDRICAL SHAPE IN CONTACT WITH THE WALL OF SAID PREVIOUSLY UNLINED PORTION OF SAID WELL WHILE SAID RESIN IS IN A LIQUID STATE, CURING SAID RESIN TO A HARDENED STATE, AND WITHDRAWING FROM SAID WELL SAID MEANS FOR LOWERING SAID TUBE INTO SAID WELL, WHEREBY A METALLIC LINER IS FORMED AND BONDED SECURELY TO EARTH FORMATIONS PENETRATED BY SAID WELL.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |