In situ oil shale retort with a horizontal sill pillar

Details In situ oil shale retort with a horizontal sill pillar In situ oil shale retort with a horizontal sill pillar

E - Fixed Constructions

21

B

166/36

E21B 43/24 (2006.01) E21B 43/247 (2006.01)

Patent

CA 1083954

A B S T R A C T An in situ oil shale retort having boundaries of un- fragmented formation and containing a fragmented permeable mass of particles containing oil shale is formed in a subterranean formation containing oil shale. A base of operation is excavated at a working level in the formation above the site of the retort to be formed and means are excavated through the formation for providing access to a location underlying the base of operation and at the bottom of the retort site. In one embodiment, a void, for example in the form of a vertical slot, is excavated in the formation between the means for access and an elev- ation below the bottom of the base of operation, leaving intact between the top of the void and the bottom of the base of operation a horizontal sill pillar of formation with a vertical thickness sufficient to maintain a safe base of operation after explosive expansion of formation towards the void to form the fragmented permeable mass of particles. The fragmented particles are retorted to recover shale oil and gaseous products therefrom.

301772

Affiliated with

Also associated with

Rating

In situ oil shale retort with a horizontal sill pillar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In situ oil shale retort with a horizontal sill pillar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In situ oil shale retort with a horizontal sill pillar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-403347