CPC C09K 8/16 (2013.01) [E21B 43/25 (2013.01); C09K 2208/12 (2013.01)] | 17 Claims |
1. A method of producing a drilling fluid, the method comprising:
reacting silica with glutamate and glycol, thereby forming a shale inhibitor comprising silica grafted with glutamate-glycol; and
mixing an aqueous base fluid, the shale inhibitor, and at least one of a clay material or a mud to produce the drilling fluid, and wherein
the drilling fluid does not comprise KCl, has a shale cutting recovery rate from 65% to 99%, and has an anti-swelling capacity from 55% to 99%.
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