E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/39
E21B 43/24 (2006.01)
Patent
CA 1080614
HIGH VERTICAL CONFORMANCE STEAM INJECTION PETROLEUM RECOVERY METHOD (D#73,335-F) ABSTRACT OF THE DISCLOSURE Viscous oil recovery methods employing well-to- well throughput steam injection are frequently less success- ful than anticipated because the process experiences poor vertical conformance, meaning that only a portion of the full vertical thickness of the oil saturated reservoir is contacted by the injected steam. Because the specific gravity of the vapor phase portion of saturated steam is substantially less than the specific gravity of formation petroleum fluids, the vapor phase steam channels across the upper portion of the formation and only contacts and dis- places petroleum present in said upper portion of the formation, bypassing substantial amounts of petroleum in the lower portion of the formation. By separating saturated steam into two components, one predominantly liquid phase and one predominantly gaseous phase, and injecting the hot liquid into the upper portion of the formation and the vapor into the lower portion of the formation, substantially greater amounts of formation petroleum are contacted and recovered by steam. Steam may be separated into liquid and vapor phase components on the surface and injected by a separate flow path into separately completed intervals, or the separation may be accomplished in a downhole separator. The process may be applied using steam alone, or other gaseous and/or liquid phase additives to steam may be injected in the same manner. I
334314
LandOfFree
High vertical conformance steam injection petroleum recovery... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High vertical conformance steam injection petroleum recovery..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High vertical conformance steam injection petroleum recovery... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-962150