Situ retort with high grade fragmented oil shale zone adjacent t

Details Situ retort with high grade fragmented oil shale zone adjacent t Situ retort with high grade fragmented oil shale zone adjacent t

1979-03-05

1980-12-16

Purser, Ernest R.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

299 13, E21C 4110

Patent

active

042392845

ABSTRACT:
An in situ oil shale retort is formed in a subterranean formation containing oil shale. Such an in situ oil shale retort contains a fragmented permeable mass of formation particles containing oil shale including a lower moiety and an upper moiety of said fragmented mass. The fragmented permeable mass of formation particles has top, bottom and side boundaries. A first portion of the formation is excavated from within the boundaries of the fragmented mass being formed to form a void. A second portion of the formation is excavated from within the boundaries of the fragmented mass being formed to form at least one additional void in communication with the first void and leaving a third portion to be expanded toward such an additional void. Fragmented particles from the excavation of such an additional void are deposited in the first void to provide a lower moiety of the fragmented permeable mass of formation particles. The third portion of the formation is explosively expanded toward such an additional void to provide an upper moiety of the fragmented permeable mass of formation particles. A retorting zone is passed through the upper and lower moieties of the fragmented mass for recovering liquid and gaseous products including shale oil.

REFERENCES:
patent: 1919636 (1930-03-01), Karrick
patent: 3349848 (1967-10-01), Burgh
patent: 3460867 (1969-08-01), Cameron et al.
patent: 3917346 (1975-11-01), Janssen
patent: 3917347 (1975-11-01), Janssen et al.
patent: 4025115 (1975-04-01), French et al.

Affiliated with

Also associated with

Rating

Situ retort with high grade fragmented oil shale zone adjacent t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Situ retort with high grade fragmented oil shale zone adjacent t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Situ retort with high grade fragmented oil shale zone adjacent t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-603889