E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/06 (2006.01) C09K 8/52 (2006.01) C09K 8/54 (2006.01) C09K 8/74 (2006.01) E21B 43/27 (2006.01)
Patent
CA 2639030
A method of acidizing and cleaning up a formation is disclosed, the formation being above 150 degrees C. The formation is treated with a mutual solvent system comprising a mutual solvent of oil and water, an aqueous acid, a corrosion inhibitor, and an iron control agent. In some embodiments, the iron control agent is present in an amount of less than 1% by weight of the mutual solvent system. In some embodiments, the corrosion inhibitor may be present in an amount of less than 10% by weight of the mutual solvent system.In some embodiments, the mutual solvent system further comprises an intensifier.
Edwards David L.
Mesher Shaun T.
Lambert Anthony R.
Synoil Fluids Holdings Inc.
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