Sand production in conjunction with oil and gas production has been a major problem in the unconsolidated and poorly consolidated sands of the Gulf Coast. Chemical methods of sand consolidation are often used to prevent sand production. These sand consolidation treatments often fail because the in-situ permeability may be highly variable. These variable permeabilities cause fluid channeling through the high permeability streaks. The region around the wellbore will not be uniformly treated.

A two-stage sand consolidation treatment has been found to provide a more uniformly consolidated interval. The inital high injection rate treatment forces most of the fluids into the zone of highest permeability. This stage will reduce the in-situ permeability of the high permeability streak. A second, and similar, consolidation treatment at a reduced injection rate is then conducted to uniformly treat the entire interval.

You can access this article if you purchase or spend a download.