Based on the measurement mechanism of mobility in pressure measurement while drilling. through analyzing a large number of mobility data. it is found that under the condition of water-based mud drilling. the product of mobility from pressure measurement while drilling and the viscosity of mud filtrate is infinitely close to the water phase permeability under the residual oil in relati... https://www.jmannino.com/special-deal-A-Magazine-Curated-By-Sacai-quick-pick/