Evaluation and production of attic oil

Details Evaluation and production of attic oil Evaluation and production of attic oil

1979-10-17

1981-05-05

Leppink, James A.

Wells

Processes

With indicating, testing, measuring or locating

166263, 166305R, E21B 4318, E21B 4700

Patent

active

042653096

ABSTRACT:
In a dipping underground petroleum reservoir devoid of a natural gas cap, a mixture of gases soluble in petroleum is injected into a well positioned in an up dip location. Gases in the mixture are selected for their diverse solubility and diffusion characteristics. Gas injection is terminated followed by attic oil production wherein the gases accompanying the produced oil are separated and measured. The separated gases are then compared quantitatively with gases injected and the solubility capabilities of the produced oil. Results are used to estimate the size of the attic portion of the reservoir. Alternating cycles of gas injection and attic oil production are continued until the well is engulfed by the expanding artificial gas cap.

REFERENCES:
patent: Re24873 (1960-09-01), Lindauer, Jr.
patent: 1872906 (1932-08-01), Doherty
patent: 2548059 (1951-04-01), Ramsey
patent: 3705625 (1972-12-01), Whitten et al.
patent: 3814186 (1974-06-01), Allen
patent: 3987853 (1976-10-01), Allen
Morrow, R. M., "Undip Oil Recovery by Downdip Gas Injection", The Petroleum Engineer, Apr. 1957, pp. B-28 to B-32.
Bleakley, W. B., The Oil and Gas Journal, Nov. 13, 1967, pp. 132-134.
Strickland, R. F., et al., "Gas Injection for Upstructure Oil Drainage", Journal of Petroleum Technology, Oct. 1979, pp. 1323-1331.

Affiliated with

Also associated with

Rating

Evaluation and production of attic oil does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Evaluation and production of attic oil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaluation and production of attic oil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-292502