Stimulation of producing wells
Abstract
Abstract HYDROCARBON PRODUCTION FROM A PRODUCING WELL IN FLUID COMMUNICATION WITH A HYDROCARBON-BEARING SUBTERRANEAN FORMATION IS IMPROVED BY INJECTING SEQUENTIALLY INTO THE FORMATION 1-500 GALLONS OF ACID PER VERTICAL FOOT OF HYDROCARBON-BEARING FORMATION, 0.1-10 VOLUMES OF WATER PER VOLUME OF ACID AND 1-500 GALLONS OF MICELLAR DISPERSION PER VERTICAL FOOT OF HYDROCARBON-BEARING FORMATION AND THEN DISPLACING THE ACID AND MICELLAR, DISPERSION OUT INTO THE FORMATION WITH A DRIVE FLUID, PREFERABLY A HYDROCARBON DRIVE FLUID IN AN OIL-WET FORMATION. THEREAFTER, THE PRODUCING WELL IS PERMITTED TO REPRODUCE. THE ACID AND MICELLAR DISPERSION CAN REMAIN IN CONTACT WITH HYDROCARBON-BEARING FORMATION UP TO ABOUT SIX HOURS BEFORE BEING DISPLACED OUT INTO THE FORMATION.
Inventors
- 👤 Wilson L Kinney
- 👤 Walter B Kirk Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |