CPC C09K 8/887 (2013.01) [C09K 8/604 (2013.01); C09K 8/703 (2013.01)] | 12 Claims |
1. A method of treating a subterranean formation penetrated by a wellbore and comprising a flow channel protruding from an outside diameter of the wellbore into the subterranean formation, the method comprising
introducing into the flow channel a diverting agent that is adapted to expand in response to an increase in size or volume of the flow channel thereby maintaining or increasing a contact area between the diverting agent and an inner surface of the flow channel,
wherein the diverting agent comprises a flexible porous polyurethane material and introducing the diverting agent into the flow channel comprises introducing into the flow channel a liquid pre-polymer blend comprising a polyisocyanate component and a polyol component which chemically react in the flow channel to produce the flexible porous polyurethane material.
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