6Wingen N. Field application of core analysis and depth-pressure methods to the determination of mean dfective permeability [J]. SPE942063, 1984.
7Boutaud J L, Combe R M. Deboaisne and S. Thibeau. Heterogeneous formation assessment of vertical permeability through pressure transient analysis- field example [J] . SPE36530, 1987.
8Horner D R. Pressure build-up in wells [J]. Proceeding third world petroleum congress, 1951 (2) : 503-521.
9Hunt E R, Pursell D A. Fundamentals of log analysis. Part 7: Determining shaliness from logs [J]. World Oil, 1997 (3): 55-58.