Process for recovery of oil from a subsurface reservoir by surfa

Details Process for recovery of oil from a subsurface reservoir by surfa Process for recovery of oil from a subsurface reservoir by surfa

1987-12-23

1989-05-02

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166275, 252 8554, E21B 4322

Patent

active

048259519

ABSTRACT:
Oil is recovered from a subsurface reservoir by surfactants. Surfactant flooding is accomplished especially in reservoirs with marked temperature fluctuations or a temperature gradient which are normally problematic since a soluble surfactant efffective for oil mobilization does not retain these properties over wide temperature ranges of, e.g., 10.degree. to 100.degree. C. The new process provides a good surfactant effectiveness even at such extreme temporary and/or local temperature fluctuations. A mixture of a carboxymethylated oxethylate and a polyglucosyl sorbitol fatty acid ester is used. The polyglucosyl sorbitols used as fatty acid esters are those with 2 to 20 glucose units. Recovery of oil by such surfactant flooding is useful above all in reservoirs with temporary or local temperature changes.

REFERENCES:
patent: 4034809 (1977-07-01), Phillips et al.
patent: 4293428 (1981-10-01), Gale et al.
patent: 4297290 (1981-10-01), Stockburger
patent: 4299711 (1981-11-01), Tyler et al.
patent: 4402857 (1983-09-01), Royle
patent: 4427564 (1984-01-01), Brownawell et al.
patent: 4457373 (1984-07-01), Balzer et al.
patent: 4485873 (1984-12-01), Balzer et al.
patent: 4528106 (1985-07-01), Grolitzer
patent: 4582138 (1986-04-01), Balzer
patent: 4620595 (1986-11-01), Schutt
patent: 4690217 (1987-09-01), Taggart et al.
patent: 4705110 (1987-11-01), Balzer
patent: 4722396 (1988-02-01), Balzer

Affiliated with

Also associated with

Rating

Process for recovery of oil from a subsurface reservoir by surfa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for recovery of oil from a subsurface reservoir by surfa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovery of oil from a subsurface reservoir by surfa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-578791