US3275077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recompletion of wells
Assignee: ExxonMobil Upstream Research Co
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Filing: 1964-03-02
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Granted: 1966-09-27
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Floyd A Smith
- 👤 Joseph W Graybeal
- 👤 Mercer H Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:39
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF PLUGGING SELECTED PERFORATIONS IN A CASED AND PERFORATED WELL BORE, COMPRISING: PACKING PARTICULATED SULFUR INTO ALL THE PERFORATIONS, HEATING THE PARTICULATED SULFUR IN SAID SELECTED PERFORATIONS UNTIL THE PARTICULATED SULFUR THERIN IS FUSED TOGETHER TO FORM A PLUG THAT ADHERES TO THE WALLS OF THER PERFORATIONS, AND PRODUCING THE WELL TO REMOVE THE UNFUSED SULFUR PARTICLES FROM THE PERFORATIONS OTHER THAN SAID SELECTED PERFORATIONS.
Claim 2
Independent Claim
67 words
THE METHOD OF PLUGGING SELECTED PERFORATIONS IN A CASED AND PERFORATED WELL BORE, COMPRISING: PACKING PARTICULATED SULFUR INTO ALL THE PERFORATIONS, HEATING THE PARTICULATED SULFUR IN SAID SELECTED PERFORATIONS UNTIL THE PARTICULATED SULFUR THERIN IS FUSED TOGETHER TO FORM A PLUG THAT ADHERES TO THE WALLS OF THER PERFORATIONS, AND PRODUCING THE WELL TO REMOVE THE UNFUSED SULFUR PARTICLES FROM THE PERFORATIONS OTHER THAN SAID SELECTED PERFORATIONS.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |