C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 33/04 (2006.01) C08L 25/14 (2006.01) C08L 25/16 (2006.01)
Patent
CA 2384217
[0093] Compositions comprising a base fluid and a monoester copolymer of styrene and maleic anhydride are disclosed. The compositions can further comprise an alkyl orthophosphate ester. The base fluid can be an aqueous or organic base fluid. The monoester copolymer is at least partially soluble or dispersible in the base fluid. Preferably, the composition may further include a cross-linking agent capable of increasing the viscosity of the composition, such as aluminum isopropoxide or other metal source compounds. The composition can form a gel which is stable at a temperature of about 250 °F (121 °C) or higher. Some gels of the present invention exhibit stability up to about 300 °F (149 °C) to 350 °F (177 °C) or higher. The compositions have many applications, such as pipeline treatment, conformance, hydraulic fracturing, well completion, gravel packing, drilling fluids, process facility treatment fluids, and other well treatment applications.
Bj Services Company
Bj Services Company Canada
Mcfadden Fincham
LandOfFree
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