On the magnitude of capillary pressure (suction potential) in tight rocks

An Algorithm for Least-Squares Estimation of Nonlinear Parameters

Donald W. Marquardt · Journal of the Society for Industrial and Applied Mathematics · 1963 · 30.4K citations

Natural Sciences, Computational Engineering, Optimization +11

A Closed‐form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils

Martinus Th. van Genuchten · Soil Science Society of America Journal · 1980 · 27.4K citations

Agriculture, Earth Sciences, Soil Sciences +17

The Dynamics of Capillary Flow

Edward W. Washburn · Physical Review · 1921 · 6.9K citations

Engineering, Physics, Fluid Dynamics +13

Characterization of gas shale pore systems by porosimetry, pycnometry, surface area, and field emission scanning electron microscopy/transmission electron microscopy image analyses: Examples from the Barnett, Woodford, Haynesville, Marcellus, and Doig units

Gareth Chalmers, R.M. Bustin, Ian Power · AAPG Bulletin · 2012 · 1.5K citations

Engineering, Earth Sciences, Geology +17

The Principle of Effective Stress

A. W. Bishop · Teknisk ukeblad/TU-nett/Teknisk ukeblads nettavis · 1959 · 1.4K citations

Natural Sciences, Physics, Psychology +12