US3006845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-in-oil emulsion well fluid and materials for preparing same
Assignee: Magnet Cove Barium Corp
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Filing: 1956-04-02
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Granted: 1961-10-31
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Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Orien W Van Dyke
- 👤 William A Reddie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:22
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/32; C09K8/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN IMPROVED WELL FLUID COMPRISING A WATER-IN-OIL EMULSION, CONTAINING WATER IN QUANTITY SUFFICIENT TO SUPPLY FROM 20 TO 80 VOLUME PERCENT OF TOTAL WATER AND OIL CONTENT STABILIZED WITH A NON-IONIC OIL-SOLUBLE EMULSIFIER AND A NON-IONIC WATER-SOLUBLE EMULSIFIER, SAID EMULSION CONTAINING SUFFICIENT OLEOPHILIC HYDROCARBON SULFONATE AND EXPANDED PERLITE TO INCREASE THE ABILITY OF SAID EMULSION TO SUSPEND WEIGHTING MATERIAL THEREIN, SUFFICIENT OF A PITCH CONTAINING HIGHER MOLECULAR WEIGHT MATERIALS DERIVED FROM THE PROCESSING OF A CRUDE MATERIAL WHICH IS SELECTED FROM THE CLASS CONSISTING OF ANIMAL FATS, VEGETABLE OILS, TALL OIL, AND THE AMINE AND NITRILE DERIVATIVES THEREOF TO INCREASE THE STABILITY OF THE EMULSION AT ELEVATED TEMPERATURES, AND SUFFICIENT OF MAGNESIUM OXIDE TO FURTHER INCREASE THE STABILITY OF THE EMULSION, SAID MAGNESIUM OXIDE HAVING AN IODINE VALUE OF AT LEAST 5 MILLIGRAM EQUIVALENTS PER 100 GRAMS.
Claim 2
Dependent Claim
137 words
AN IMPROVED WELL FLUID COMPRISING A WATER-IN-OIL EMULSION, CONTAINING WATER IN QUANTITY SUFFICIENT TO SUPPLY FROM 20 TO 80 VOLUME PERCENT OF TOTAL WATER AND OIL CONTENT STABILIZED WITH A NON-IONIC OIL-SOLUBLE EMULSIFIER AND A NON-IONIC WATER-SOLUBLE EMULSIFIER, SAID EMULSION CONTAINING SUFFICIENT OLEOPHILIC HYDROCARBON SULFONATE AND EXPANDED PERLITE TO INCREASE THE ABILITY OF SAID EMULSION TO SUSPEND WEIGHTING MATERIAL THEREIN, SUFFICIENT OF A PITCH CONTAINING HIGHER MOLECULAR WEIGHT MATERIALS DERIVED FROM THE PROCESSING OF A CRUDE MATERIAL WHICH IS SELECTED FROM THE CLASS CONSISTING OF ANIMAL FATS, VEGETABLE OILS, TALL OIL, AND THE AMINE AND NITRILE DERIVATIVES THEREOF TO INCREASE THE STABILITY OF THE EMULSION AT ELEVATED TEMPERATURES, AND SUFFICIENT OF MAGNESIUM OXIDE TO FURTHER INCREASE THE STABILITY OF THE EMULSION, SAID MAGNESIUM OXIDE HAVING AN IODINE VALUE OF AT LEAST 5 MILLIGRAM EQUIVALENTS PER 100 GRAMS.
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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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |