The Effect Of MoS2 -And Graphene Nanoparticles On The Properties & Performance Of Polymer /Salt Treated Bentonite

Abstract

Among others, properly designed drilling fluid is a key for a success of drilling operation. The rheology, and lubricity of drilling fluids control the hydraulics, hole cleaning and the mechanical friction between string and wellbore. In this paper, the effect of Molybdenum disulfide (MoS2)- and Graphene nanoparticles on conventional water based drilling fluid systems have been studied. The coefficient of frictions have been measured at 20°, 55° and 70° C. The results show that the addition of 0.2 gm (0,04 wt %) MoS2 and 01. gm (0,02 wt %) graphene reduced the average friction coefficient of the conventional nano-free drilling fluid by an average of -44 % and -34% respectively. The torque and drag simulation studies showed that the reduction of coefficient of friction increased drilling depth by +26% and +7,7% respectively.