Method for formation of subsurface barriers using viscous colloids

Patent · Thu Jan 01 00:00:00 EST 1998

OSTI ID:871974

Apps, John A ^[1]; Persoff, Peter ^[2]; Moridis, George ^[3]; Pruess, Karsten ^[4]

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1. Lafayette, CA
2. Piedmont, CA
3. Oakland, CA
4. Berkeley, CA

A method for formation of subsurface barriers using viscous liquids where a viscous liquid solidifies at a controlled rate after injection into soil and forms impermeable isolation of the material enclosed within the subsurface barriers. The viscous liquid is selected from the group consisting of polybutenes, polysilotanes, colloidal silica and modified colloidal silica of which solidification is controlled by gelling, cooling or cross-linking. Solidification timing is controlled by dilution, addition of brines, coating with alumina, stabilization with various agents and by temperature.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5836390
• OSTI ID: 871974
• Country of Publication: United States
• Language: English

Related Subjects

method
formation
subsurface
barriers
viscous
colloids
liquids
liquid
solidifies
controlled
rate
injection
soil
forms
impermeable
isolation
material
enclosed
selected
consisting
polybutenes
polysilotanes
colloidal
silica
modified
solidification
gelling
cooling
cross-linking
timing
dilution
addition
brines
coating
alumina
stabilization
various
agents
temperature
viscous liquid
controlled rate
subsurface barriers
surface barrier
material enclosed
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