A novel non-ionic surfactant extract derived from as shale inhibitor in water based drilling mud.

High performance clay swelling inhibitors play a vital role in improving inhibition characteristics of shales. The linkages between the inhibition's characteristics of the non-ionic surfactant extract from bio-based inhibitors are yet to be fully explored in the literature. This paper reports the use of a crude extract containing saponins from (CO) leaf, which act as surfactants for inhibiting shale hydration.