Accelerating Pressure Transmission Test Analysis to Quantify Shale-Fluid Interactions

Abstract Drilling shale formations using water-based fluid is challenging due to unfavorable interactions. Designing optimal fluid formulation requires laboratory tests such as pressure transmission test (PTT) to evaluate shale-fluid interactions. However, the requirement of complex lab equipment and a long testing time can make it difficult to use this technique. In this study, integration of the analytical solution to PTT was explored through adaptive procedure to reduce experimental time. By applying the proposed adaptive procedure, we achieved up to a 90% reduction in experimental time consumption. This procedure offers a promising solution for conserving time and resources traditionally consumed by PTT. Keywords Pressure transmission test, Shale, Shale-fluid interactions, Analytical solution, Adaptive procedure