Comparative Study of Biopolymers Action on Physico-Chemical and Rheological Properties of Water-Based Drilling Muds

Abstract

Several polymer types compounds are currently used in the water-based mud's, as a filtration control agents, viscosity agent, etc. However, each type of these polymers may have a different effect on the physical, chemical and rheological properties of drilling fluids especially in the presence of an inorganic material such as bentonite. In addition, under geological conditions of wells and during the drilling operation, some compositions of the water-based mud's (clay-polymer system), is sometimes not effective for the operation success of the drilling oil wells in Algeria (South Algeria). For this purpose, the aim of this present work is essentially the study of the polymer actions (xanthan, cellulose polyanionic, partially hydrolyzed polyacrylamide) on the physical, chemical and rheological properties of the drilling muds in the presence of bentonite. An experimental study was conducted on formulations of water-based muds with different types of biopolymers. The results shows that the electrokinetic and rheological study of drilling mud's based different polymers, has permitted to better understanding of the interaction of water-polymers system at different concentrations. Also, the best compositions of drilling mud with concentrations of bipolymers can be used for drilling of wells.

Gel Stability of Calcium Bentonite Suspension in Brine and Its Application in Water-Based Drilling Fluids

“…The natural macromolecular polymers selected were xanthan gum (XC) [ 30 ], natural modified polymer (P-H) and vegetable gum (MVG). MVG is a polymeric material containing a polysaccharide such as galactomannose as the main component, which is extracted from the roots, stems and leaves of woody plants or herbs [ 31 ].…”

An ecological water-based drilling mud (WBM) with low cost: substitution of polymers by wood wastes

“…The use of polymers such as cellulose derivatives (Bentriou et al 2014;Yang et al 2007;Kok and Alikaya 2005;Leliang and Guijuan 2003;Ling et al 1999;Hughes et al 1993), biopolymers (Jun et al 2001;Xie et Lecourtier 1992;Navarrete et al 2001), and guar gum (Bentriou et al 2014;Mahto and Sharma 2004;Sharma et Mahto 2006) became indispensable in water-based drilling fluids to replace the oil-based mud for environmental considerations. Many studies were carried using different polymers in formulation of water-based drilling muds.…”