Shell Oil Comapny

Wolfgang Friedrich Johann Deeg

Harold J Vinegar

Kenneth M Cowan

Billy John McKinzie

Fersheed Khodadad Mody

Mikhail Boris Geilikman

Sau-Wai Wong

Methods and systems for establishing a double barrier around at least a portion of a subsurface treatment area in a hydrocarbon containing formation are disclosed. First barrier wells may be used to form a first barrier around a portion of the subsurface treatment area. Second barrier wells may be used to form a second barrier around the first barrier. A space may exist between the first barrier and the second barrier. The first barrier and second barrier may be inhibited from forming a single combined barrier by the injection, and in some cases circulation, of fluids such as saline water.

Barrier methods for use in subsurface hydrocarbon formations

A barrier system for a subsurface treatment area is described. The barrier system includes a first barrier formed around at least a portion of the subsurface treatment area. The first barrier is configured to inhibit fluid from exiting or entering the subsurface treatment area. A second barrier is formed around at least a portion of the first barrier. A separation space exists between the first barrier and the second barrier.

Double barrier system for an in situ conversion process

Growing community of inventors

Houston, TX, United States of America

Wolfgang Friedrich Johann Deeg