US3702296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil and gas treatment
Assignee: Atlantic Richfield Co
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Filing: 1970-12-23
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Granted: 1972-11-07
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Expires: 1990-12-23
Abstract
Abstract METHODS FOR TREATING OIL AND GAS TO STABILIZE THE OIL BY REMOVING THE GAS AND TO MAKE THE GAS MEET SPECIFICATIONS SUCH AS DEW POINT. THE OIL IS STABILIZED BY SUBJECTING SAME TO FLASH CONDITIONS AND THE EXTENT OF FLASHING IS CONTROLLED BY ADDING TO THE OIL A MORE VOLATILIZABLE MATERIAL OF VARYING LIQUID AND GAS CONTENT. THE GAS IS PREPARED TO MEET SPECIFICATIONS BY COOLING FOLLOWED BY CONTACTING WITH AT LEAST ONE SOLVENT WHICH HAS A GREATER AFFINITY FOR HEAVIER HYDROCARBONS, CARBON DIOXIDE, HYDROGEN SULFIDE, AND WATER THAN FOR METHANE, ETHANE, AND PROPANE.
Inventors
- 👤 Thomas B Arnold
- 👤 Eugene B Byrnes
- 👤 Alonzo R Castoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:54
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04; C10G7/00; C10G7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |