Method of maintaining subterranean formation permeability...

Details Method of maintaining subterranean formation permeability... Method of maintaining subterranean formation permeability...

E - Fixed Constructions

21

B

E21B 43/25 (2006.01) C09K 8/22 (2006.01) C09K 8/60 (2006.01)

Patent

CA 2106778

Swelling and migration of subterranean clay is inhibited during stimulation of the production of hydrocarbon fluids, and preparation therefor, by treating said formations with a compound of the formula (CH2=CH-CH2)nN+(CH3)4nX- where X may be any anion which does not adversely react with the formation or treatment fluid and n is an integer from 1 to 4.

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