OBM system for difficult wells

摘要

An organophilic clay-free, nonaqueous drilling fluid system achieves success in the Permian Basin. Choosing the right drilling fluid for a chosen application necessitates a thorough understanding of formation characteristics and deep knowledge of the interaction between mud additives' chemistry. Varying the composition of the drilling fluid for the parameters of each drilling scenario will enable improved rheological and physical properties, and with the optimal drilling fluid, an operator will be more effectively able to drill the longer, deeper, more complicated wells typical of shale.