Fracture pattern development has been a challenging area of research in the Earth sciences
for more than 100 years. Much has been learned about the spatial and temporal complexity …

Veins are common features in rocks and extremely useful structures to determine stress,
strain, pressure, temperature, fluid composition and fluid origin during their formation. Here …

Microtectonics deals with the interpretation of microstructures, small-scale deformation
structures in rocks that yield abundant information on the history and type of deformation and …

Microfractures are small, high-aspect-ratio cracks in rock that result from application of
differential stresses. Although the term has been used to refer to larger features in the …

This paper presents an investigation of the effect of pressure-dependent natural-fracture
permeability on production from shale-gas wells. The motivation of the study is to provide …

Accurate predictions of natural fracture flow attributes in sandstones require an
understanding of the underlying mechanisms responsible for fracture growth and aperture …

Reservoir-quality predictive models will be a useful element of risk analysis until remote-
sensing tools are invented that accurately measure effective porosity and permeability …

Fracture intensity, the number of fractures per unit length along a sample line, is an
important attribute of fracture systems that can be problematic to establish in the subsurface …

A new model accounts for crystal growth patterns and internal textures in quartz cement in
sandstone fractures, including massive sealing deposits, thin rinds or veneers that line open …

Existing quartz cement models assume that the rate of growth per unit surface area is
independent of grain size. Application of one such model to four geologically diverse data …