Sa mpll
Abstract
Abstract THE PRESENT INVENTION COMPRISES A PROCESS FOR THE SIMULTANEOUS DISPLACEMENT OF PETROLEUM AND WATER IN A FORMATION BY INJECTING THEREINTO A DISPLACING FLUID HAVING A RELATIVE MOBILITY (NOT GREATER THAN) SELECTED IN ACCORDANCE WITH THE MINIMUM TOTAL RELATIVE MOBILITY OF THE OIL AND WATER PHASES REASONABLY LIKELY TO BE ENCOUNTERED IN THE FORMATION UNDER PREVAILING FORMATION CONDITIONS. THE TOTAL RELATIVE MOBILITY CORRESPONDING TO THE WATER SATURATION CAUSED BY AN APPROPRIATE SLUG OF DISPLACEMENT FLUID FLOWING IN AT LEAST ONE ROCK SAMPLE REASONABLY REPRESENTATIVE OF SAID FORMATION IS DETERMINED BY FLOWING A REPRE- SENTATIVE SLUG OF THE ACTUAL DISPLACEMENT FLUID TO BE USED THROUGH SAID ROCK SAMPLE FOR A DISTANCE SUFFICIENT TO ACHIEVE AN EQUILIBRIUM WATER SATURATION REPRESENTATIVE OF THE WATER SATURATION WHICH WILL BE CAUSED BY THE SLUG FLOWING THROUGH THE ACTUAL RESERVOIR.
Inventors
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Bibliographic Details
Claims Analysis
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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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |