Patent Number: 7,762,332

Title: Method of using water-superabsorbent polymer in production tubing and pipes

Abstract: A thermal insulating packer fluid contains at least one water superabsorbent polymer and optionally water and/or brine, and a viscosifying polymer. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus.

Inventors: Lopez; Cristian A. (Corpus Christi, TX), Wang; Xiaolan (Baton Rouge, LA), Qu; Qi (Spring, TX), Javora; Paul H. (Spring, TX)

Assignee: BJ Services Company LLC

International Classification: E21B 36/00 (20060101); E21B 43/24 (20060101); C09K 8/68 (20060101)

Expiration Date: 7/27/12018