Method of forming an in situ oil shale retort in formation with

Details Method of forming an in situ oil shale retort in formation with Method of forming an in situ oil shale retort in formation with

1983-03-28

1984-08-21

Suchfield, George A.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

166251, 166259, 299 13, E21B 43247, E21C 4110

Patent

active

044666683

ABSTRACT:
A method for forming an in situ oil shale retort in a retort site in a subterranean formation containing oil shale and having at least one set of naturally occurring cleavage planes is provided. The in situ oil shale retort contains a fragmented permeable mass of formation particles formed within top, bottom, and side boundaries of unfragmented formation. A void is excavated in the subterranean formation within the boundaries of the retort site, while a zone of unfragmented formation is left within the retort boundaries adjacent the void. A plurality of rows of horizontally spaced apart explosive charges is formed in the zone of unfragmented formation where each such row is in a line about perpendicular to the strike of the major cleavage plane set in the formation. The rows of explosive charges are detonated in a selected sequence with the charges in each such row detonated about simultaneously for explosively expanding the zone of unfragmented formation toward the void for forming the fragmented permeable mass of formation particles in the retort.

REFERENCES:
patent: 3205942 (1965-09-01), Sandberg
patent: 4043596 (1977-08-01), Ridley
patent: 4360233 (1982-11-01), Ricketts
patent: 4423906 (1984-01-01), Studebaker
Sellers et al, Rock Mechanics Research on Oil Shale Mining, Presented at AIME Annual Meeting, 1971.
Mining Engineer's Handbook, Peele, Ed., 3rd Ed., vol. 1, pp. 477, 478, 1959 John Wiley & Sons, N.Y.

Affiliated with

Also associated with

Rating

Method of forming an in situ oil shale retort in formation with 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 of forming an in situ oil shale retort in formation with , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming an in situ oil shale retort in formation with will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1936635