This paper is an enhanced version of a SPE conference presentation (SPE 191198-MS), and the full copyright of the paper has been retained by the initial owner. The authors are grateful for the important support from the 973 project (2014CB239103), the National Science, Technology Major Project (2016ZX05023-001, 2017ZX05049-006) and the Fundamental Research Funds for Central Universities (15CX06026A), the China Scholarship Council (201706450021), the National Nature Science Foundation (41772154) and the Shandong Provincial Natural Science Foundation (ZR2017MEE003).
FAN Kunkun, SUN Renyuan, Derek ELSWORTH, DONG Mingzhe, LI Yajun, YIN Congbin, LI Yanchao, CHEN Zhongwei, WANG Chunguang.2020. Radial Permeability Measurements for Shale Using Variable Pressure Gradients[J]. ACTA GEOLOGICA SINICA(English edition),94(2):269~279
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