PSH, a new type of high-performance water-base drilling fluids shale inhibitor of my company, is a poly-amine-modified polyether polyols shale inhibitor. Amine based PSH proposes good cationic adsorbability and inhibitory capacity and a long duration of action.
-Eliminate swelling, bit bailing and sticking
-Excellent shale inhibition
-Reduce torque and drag, maintains cuttings integrity
-Compatible with most water based systems
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