WATER PRODUCTION CONTROL WITH RELATIVEPERMEABILITY MODIFIERS

摘要

Excessive water production results in reduced well productivity, increased costsassociated with produced water treatment and handling, and premature well abandonment. This paperdiscusses well treatments with relative permeability modifying (RPM) polymers-- polymers that arecapable of selectively reducing the permeability to water of the rocks onto which they adsorb. Theprincipal results of experimental and simulation studies, conducted with the goal of linking the basicphysical mechanisms of the process to the development of operational rules for treatment design, arereported. The application of these understanding-based rules for candidate and chemical selection hasled to a successful RPM application in an Italian gas field.