Patent US4251312A successfully refreshed from Google Patents.
Patent US3106246A successfully refreshed from Google Patents.
US3106246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for supporting the walls of a well
Assignee: Phillips Petroleum Co
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Filing: 1959-05-04
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Granted: 1963-10-08
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Expires: 1979-05-04
Abstract
No abstract record available.
Inventors
- 👤 Spencer S Prentiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:47
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN COMBINATION A REFRACTORY DEVICE WITHIN A CARBONACEOUS STRATUM IN A WELL TO PREVENT CAVING AND SAND INFILTRATION DURING PRODUCTION OF THE ADJACENT STRATUM AND TO PROVIDE SPACE IN THE DEVICE FOR A FUEL PACK, COMPRISING AN ELONGATED AXIAL PORTION CONCENTRIC WITH THE AXIS OF SAID WELL; A PLURALITY OF RADIAL ARMS OF SUBSTANTIALLY EQUAL LENGTH ATTACHED TO AND EXTENDING OUTWARDLY FROM SAID AXIAL PORTION, SAID ARMS BEING SPACED APART LONGITUDINALLY AND CIRCUMFERENTIALLY WITH INTERVENING SPACE FOR FUEL PACK AND GASES; ARCUATE SUPPORTS ON THE OUTER ENDS OF SAID ARMS FORMING SECTIONS OF A COMMON CYLINDER ADJACENT THE WALL OF SAID WELL TO SUPPORT SAID WALL, THE AREA OF SAID SUPPORTS ADJACENT SAID WALL NOT EXCEEDING 20% OF THE AREA OF EA OF SAID CYLINDER AND SAID DEVICE OCCUPYING ONLY A MINOR PORTION OF THE VOLUME OF SAID CYLINDER; AND A PACK OF SOLID PARTICULATE FUEL FILLING SAID INTERVENING SPACE AND CONTACTING THE WALL OF SAID WELL.
Claim 2
Dependent Claim
157 words
IN COMBINATION A REFRACTORY DEVICE WITHIN A CARBONACEOUS STRATUM IN A WELL TO PREVENT CAVING AND SAND INFILTRATION DURING PRODUCTION OF THE ADJACENT STRATUM AND TO PROVIDE SPACE IN THE DEVICE FOR A FUEL PACK, COMPRISING AN ELONGATED AXIAL PORTION CONCENTRIC WITH THE AXIS OF SAID WELL; A PLURALITY OF RADIAL ARMS OF SUBSTANTIALLY EQUAL LENGTH ATTACHED TO AND EXTENDING OUTWARDLY FROM SAID AXIAL PORTION, SAID ARMS BEING SPACED APART LONGITUDINALLY AND CIRCUMFERENTIALLY WITH INTERVENING SPACE FOR FUEL PACK AND GASES; ARCUATE SUPPORTS ON THE OUTER ENDS OF SAID ARMS FORMING SECTIONS OF A COMMON CYLINDER ADJACENT THE WALL OF SAID WELL TO SUPPORT SAID WALL, THE AREA OF SAID SUPPORTS ADJACENT SAID WALL NOT EXCEEDING 20% OF THE AREA OF EA OF SAID CYLINDER AND SAID DEVICE OCCUPYING ONLY A MINOR PORTION OF THE VOLUME OF SAID CYLINDER; AND A PACK OF SOLID PARTICULATE FUEL FILLING SAID INTERVENING SPACE AND CONTACTING THE WALL OF SAID WELL.
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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |