Patent ID: 8481463

Claim:
A grouting composition for use in insulating a portion of a tubular located inside an enclosed conduit, the grouting composition comprising: (A) an oil-swellable binding material comprising an organophilic clay; and (B) a hydrocarbon liquid, wherein the hydrocarbon liquid is the continuous phase of the grouting composition; and (C) an insulating material comprising hollow microspheres; wherein the binding material is in a concentration in the range of about 200 to about 400 pounds per 100 gallons of the hydrocarbon liquid; wherein after the grouting composition has set, the grouting composition has a thermal conductivity of less than 0.3 BTU/hr·ft·° F; and wherein the grouting composition has a shear strength of at least 2,000, lb/100 ft 2 when tested at 24 hours at a temperature of 71° F. and a pressure of 1 atmosphere.