Patent US2729291A successfully refreshed from Google Patents.
US2729291A
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Separating co2-petroleum mixtures
Assignee: ConocoPhillips Co
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Filing: 1952-03-22
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Granted: 1956-01-03
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Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Fern B Haverfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:57
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/06; E; E21; E21B; E21B43/00; E21B43/16; E21B43/164; Y; Y10; Y10S; Y10S62/00; Y10S62/928; Y10S62/929
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A PROCESS FOR THE RECOVERY OF NORMALLY LIQUID HYDROCARBONS FROM A HIGH PRESSURE WELL EFFLUENT COMPRISING A MAJOR PROPORTION OF CO2 AND A MINOR PROPORTION OF PETROLEUM HYDROCARBONS, A DOMINANT PORTION OF WHICH WELL EFFLUENT IS IN A LIQUID PHASE, SAID PROCESS COMPRISING THE STEPS OF SHIFTING THE PHASE EQUILIBRIUM OF SAID LIQUID PHASE TO VAPORIZE THEREFROM SUFFICIENT OF ITS CO2 CONTENT TO LEAVE A LIQUID PHASE OF PREDOMINANTLY PETROLEUM HYDROCARBON CONTAINING LESS THAN 40 LIQUID VOLUME PER CENT DISSOLVED CO2 BY RAISING THE TEMPERATURE OF THE WELL EFFLUENT TO BETWEEN ABOUT 95 TO ABOUT 110* F. WHILE REDUCING THE PRESSURE TO BETWEEN ABOUT 750 TO ABOUT 1000 P.S.I.A.
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) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |