Method for increasing oil recovery

Details Method for increasing oil recovery Method for increasing oil recovery

1982-12-13

1984-10-09

Novosad, Stephen J.

Wells

Processes

Using microorganisms

166273, E21B 4322

Patent

active

044755902

ABSTRACT:
A method of treating a subterranean oil-bearing formation having an in-situ microbial population therein. In a preferred embodiment, the method permits increased oil recovery by stimulating the growth of the in-situ microbial populations. Nutrients, including nitrogenous-and phosphorous-containing compounds, are injected into the formation concurrent with or subsequent to a waterflood. The nutrients can be injected sequentially, and the sequence can be varied or repeated as necessary. Growth of the microorganisms increases displacement and sweep efficiency of a subsequent waterflood.

REFERENCES:
patent: 2413278 (1946-12-01), Zobell
patent: 2660550 (1950-11-01), Updegraff et al.
patent: 2907389 (1959-10-01), Hitzman
patent: 3032472 (1962-05-01), Hitzman
patent: 3332487 (1967-07-01), Jones
patent: 3340930 (1967-09-01), Hitzman
Zobell, "Bacterial Release of Oil from Oil-Bearing Materials, Part 1", World Oil, 8-25-47, pp. 36, 39, 40, 42, 44 and 47.

Affiliated with

Also associated with

Rating

Method for increasing oil 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 Method for increasing oil recovery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for increasing oil recovery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1595346