Patent US3087542A successfully refreshed from Google Patents.
US3087542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for plugging formations
Assignee: Gulf Research and Development Co
•
Filing: 1958-12-02
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Granted: 1963-04-30
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Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Becker
- 👤 Robert J Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:08
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/5045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR PLUGGING A PERMEABLE FORMATION PENETRATED BY THE BOREHOLE OF A WELL TO PREVENT FLOW FROM THE PERMEABLE FORMATION INTO THE WELL COMPRISING PUMPING WATER DOWN THE BOREHOLE OF THE WELL, DISPLACING SAID WATER FROM THE BOREHOLE OF THE WELL INTO THE PERMEABLE FORMATION ADJACENT THE BOREHOLE OF THE WELL WITH A FLUID SUBSTANTIALLY IMMISCIBLE IN THE WATER, AND THEN DISPLACING A GAS CONSISTING OF SILICON TETRAFLUORIDE DOWN THE BOREHOLE OF THE WELL AND INTO THE FORMATION WHEREBY THE SILICON TETRAFLUORIDE REACTS WITH WATER IN THE FORMATION ADJACENT THE BOREHOLE TO PLUG THE FORMATION.
Claim 2
Dependent Claim
96 words
A PROCESS FOR PLUGGING A PERMEABLE FORMATION PENETRATED BY THE BOREHOLE OF A WELL TO PREVENT FLOW FROM THE PERMEABLE FORMATION INTO THE WELL COMPRISING PUMPING WATER DOWN THE BOREHOLE OF THE WELL, DISPLACING SAID WATER FROM THE BOREHOLE OF THE WELL INTO THE PERMEABLE FORMATION ADJACENT THE BOREHOLE OF THE WELL WITH A FLUID SUBSTANTIALLY IMMISCIBLE IN THE WATER, AND THEN DISPLACING A GAS CONSISTING OF SILICON TETRAFLUORIDE DOWN THE BOREHOLE OF THE WELL AND INTO THE FORMATION WHEREBY THE SILICON TETRAFLUORIDE REACTS WITH WATER IN THE FORMATION ADJACENT THE BOREHOLE TO PLUG THE FORMATION.
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |