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Engineering new oil recovery methods

Journal Article · · Pet. Eng.; (United States)
OSTI ID:5693042
New oil recovery methods can be divided into 2 types: immiscible and miscible. Immiscible methods were initiated with low-pressure gas injection that could recover 25 to 35% of the oil-in-place. An immiscible oil recovery process might be a successful waterflood that would recover 50% of the in place oil. Additional immiscible methods include carbonated water, thickened or viscous water, steam flooding, foam flooding, surfactant and bacteriological flooding, and others. An immiscible process may be expected to recover from 35 to 80% of the oil-in-place. Miscible processes normally displace from 90 to 100% oil from the contacted area. Miscible oil recovery includes a wide variety of processes, including fire-floods, high-pressure gas injection, LPG slugs, enriched gas drives, alcohol floods, carbon-dioxide floods, and micellar solutions. The recovery may be as much as 90 to 100% oil. The oil recovery methods discussed are displacement processes. About half of the new methods now proposed involve use of water as a driving medium. These new displacement processes require additional engineering, some aspects of which are noted.
Research Organization:
Texas Petroleum Res Comm
OSTI ID:
5693042
Journal Information:
Pet. Eng.; (United States), Journal Name: Pet. Eng.; (United States) Vol. 41:4; ISSN PENGA
Country of Publication:
United States
Language:
English