creator Bridges, Jack E. To provide confinement in a porous medium in the earth, a limited region of the porous medium is heated to drive substantially all of the free water from open spaces of the medium in the region. After heating, liquid material is introduced into the open spaces in the medium, which liquid material will set into a substantially solid structure. The liquid material is then set in the open spaces to form a substantially solid structure in the medium in the region. Submitted by Aric Ahrens (ahrens@iit.edu) on 2011-12-06T19:23:56Z No. of bitstreams: 1 4900196.pdf: 330506 bytes, checksum: 15ad503dc68d406fbd8a0045c6dafa07 (MD5) Made available in DSpace on 2011-12-06T19:23:56Z (GMT). No. of bitstreams: 1 4900196.pdf: 330506 bytes, checksum: 15ad503dc68d406fbd8a0045c6dafa07 (MD5) Previous issue date: 1990-02-13 IIT Research Institute 2009-05-08 1990-02-13 4,900,196 http://hdl.handle.net/10560/2374 en United States Patent Patent reformatted digital application/pdf No Copyright - United States http://rightsstatements.org/page/NoC-US/1.0/ Open Access