Method for producing low permeability reservoirs using a single

Details Method for producing low permeability reservoirs using a single Method for producing low permeability reservoirs using a single

1993-10-28

1995-01-03

Suchfield, George A.

Wells

Processes

Separating material entering well

166303, 166306, 166308, E21B 4324, E21B 4326, E21B 4340

Patent

active

053777565

ABSTRACT:
A method for recovering connate fluids (e.g. oil) from a low permeability subterranean reservoir (e.g. diatomite) through a single wellbore. Upper and lower intervals are fractured from the wellbore that the fractured intervals only partially overlap, thereby leaving a partial, natural barrier formed of random-spaced, low permeable areas along the interface between the fractured intervals. This partial barrier improves the sweep efficiency of a drive fluid (e.g. water) which is injected into the lower fractured interval by forcing it to spread outward into the reservoir before it is flows through the upper fractured interval. The drive fluid is injected at approximately the same rate as that at which the fluids are produced so that displacement of oil occurs primarily due to imbibition.

REFERENCES:
patent: 2970645 (1961-02-01), Glass
patent: 3028914 (1962-04-01), Flickinger
patent: 3118499 (1964-01-01), Johnson et al.
patent: 3163211 (1964-12-01), Henley
patent: 3289762 (1966-12-01), Schell et al.
patent: 3353602 (1967-11-01), Geertsma
patent: 3490527 (1970-01-01), Cook et al.
patent: 3712379 (1973-01-01), Hill
patent: 4424859 (1984-01-01), Sims et al.
patent: 4711304 (1987-12-01), Boeke et al.
patent: 4867241 (1989-09-01), Strubhar
patent: 4889186 (1989-12-01), Hanson et al.
patent: 5018578 (1991-05-01), El Rabaa et al.
patent: 5161618 (1992-11-01), Jones et al.
patent: 5247993 (1993-09-01), Sarem et al.
"Hydraulic Fracturing", Petroleum Engineer, Jul. 1961.

Affiliated with

Also associated with

Rating

Method for producing low permeability reservoirs using a single 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 producing low permeability reservoirs using a single , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing low permeability reservoirs using a single will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2204876