Wells – Processes – With indicating – testing – measuring or locating
Patent
1977-09-28
1978-10-24
Novosad, Stephen J.
Wells
Processes
With indicating, testing, measuring or locating
166272, E21B 4324
Patent
active
041216610
ABSTRACT:
Viscous petroleum may be recovered from viscous petroleum-containing formations such as tar sand deposits in a process employing a cyclical injection-production program in which first steam is injected and fluids are produced without restriction until live steam production occurs at the production well, followed by steam injection with production throttled until the formation pressure at the production well rises to a value between about 60% to 95% of the steam injection pressure, after which fluid production is permitted without restriction and steam injection is reduced to 50% or less of the original injection rate. The process should be applied to a viscous petroleum formation in which adequate communication exist or in which a communication path is first established. Optimum results are obtained if the pressurization and drawdown cycles are initiated shortly after the beginning of the steam injection program, and the benefits include substantially increased oil recovery efficiency at all values of steam pore volumes injected.
REFERENCES:
patent: 3221813 (1965-12-01), Closmann et al.
patent: 3367419 (1968-02-01), VAN Lookeren
patent: 3385360 (1968-05-01), Smith
patent: 3768559 (1973-10-01), Allen et al.
patent: 3771598 (1973-11-01), McBean
patent: 3796262 (1974-03-01), Allen et al.
patent: 3847219 (1974-11-01), Wand et al.
patent: 3853178 (1974-12-01), Shen
patent: 3908762 (1975-09-01), Redford
Novosad Stephen J.
Ries Carl G.
Texas Exploration Canada, Ltd.
Whaley Thomas H.
LandOfFree
Viscous oil recovery method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Viscous oil recovery method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscous oil recovery method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2333396