In situ recovery of viscous materials

Details In situ recovery of viscous materials In situ recovery of viscous materials

E - Fixed Constructions

21

B

166/39

E21B 43/24 (2006.01) E21B 43/18 (2006.01) E21B 43/30 (2006.01)

Patent

CA 1173356

Case 5562 CLR/nlh/ejl 10/14/81 ABSTRACT OF THE INVENTION Viscous materials, such as bitumen, can be recovered from subsurface earth formations such as tar sands, by forming a shaft, or first borehole, to the base of the desired subsurface formation, extending the shaft into the underburden, forming a tunnel in the underburden outwardly from the shaft, and drilling second boreholes outwardly and upwardly from the tunnel into the subsurface formation. Steam is injected into these second boreholes unit the viscosity of the material is reduced, and the liberated material is collected. Variations of this basic procedure are discussed.

394280

Affiliated with

Also associated with

Rating

In situ recovery of viscous materials 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 recovery of viscous materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In situ recovery of viscous materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1173468