Patent US3246692A successfully refreshed from Google Patents.
US3246692A
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Method employing weighted well fluid
Assignee: ExxonMobil Oil Corp
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Filing: 1962-02-07
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Granted: 1966-04-19
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Expires: 1982-02-07
Abstract
No abstract record available.
Inventors
- 👤 Alvin V Metler
- 👤 Anton G Ostroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:53
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/16; Y; Y10; Y10S; Y10S507/00; Y10S507/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR PREVENTING THE UNINTENTIONAL EXPULSION OF FORMATION FLUIDS FROM A SUBTERRANEAN FORMATION CONTAINING THE SAME AT PRESSURES GREATER THAN ATMOSPHERIC INTO A WELL PENETRATING SUCH FORMATION COMPRISING THE STEPS OF INTRODUCING THROUGH THE WELL TO A POSITION ADJACENT THE FORMATION CONTAINING FORMATION FLUIDS AN AQUEOUS LIQUID HAVING A DENSITY SUFFICIENT TO PROVIDE A HYDROSTATIC PRESSURE ON SAID FORMATION OF A MAGNITUDE SUFFICIENT TO PREVENT EXPULSION OF SAID FORMATION FLUIDS THEREFROM INTO SAID WELL, SAID AQUEOUS LIQUID COMPRISING A MIXTURE OF
Claim 2
Dependent Claim
82 words
A PROCESS FOR PREVENTING THE UNINTENTIONAL EXPULSION OF FORMATION FLUIDS FROM A SUBTERRANEAN FORMATION CONTAINING THE SAME AT PRESSURES GREATER THAN ATMOSPHERIC INTO A WELL PENETRATING SUCH FORMATION COMPRISING THE STEPS OF INTRODUCING THROUGH THE WELL TO A POSITION ADJACENT THE FORMATION CONTAINING FORMATION FLUIDS AN AQUEOUS LIQUID HAVING A DENSITY SUFFICIENT TO PROVIDE A HYDROSTATIC PRESSURE ON SAID FORMATION OF A MAGNITUDE SUFFICIENT TO PREVENT EXPULSION OF SAID FORMATION FLUIDS THEREFROM INTO SAID WELL, SAID AQUEOUS LIQUID COMPRISING A MIXTURE OF
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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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |