Martin J. Blunt
Department of Earth Science and Engineering, Imperial College London, London, SW7 2BP, UK
United Kingdom

Shuyu Sun
School of Mathematical Sciences, Tongji University, Shanghai 200092, P. R. China
China

Marijn A. Boone
TESCAN XRE, Bollebergen 2B, Ghent 9052, Belgium
Belgium

Liwei Zhang
State Key Laboratory of Geomechanics and Geotechnical Engineering Safety, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
China

Jianchao Cai
State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, P. R. China
China