Geophysical well-log evaluation in the era of unconventional hydrocarbon resources (mainly
tight oil and gas, shale oil and gas) is complicated and challenging. This review aims to fill …

Image logs provide important information on lithology, sedimentary textures, paleoflow
directions, fractures and in situ stress analysis. Lacking of criteria used for establishing the …

Crevasse-splay deposits form a volumetrically significant component of many fluvial
overbank successions (up to 90% in some successions). Yet the relationships between the …

Geophysical well logs are widely used in geological fields, however, there are considerable
incompatibilities existing in solving geological issues using well log data. This review …

Geophysical well log data are widely used in the field of structural geology, sedimentary
geology and petroleum geology. Gaps and misunderstandings are still existing in the …

Core, thin section, conventional and image logs are used to provide insights into distribution
of fractures in fine grained sedimentary rocks of Permian Lucaogou Formation in Jimusar …

Abstract Knowledge of how high can fracture porosity become in the ultra-deep burial
conditions is important but remains problematic. Fracture aperture and porosity are …

Lamellation fractures, as important reservoir space and fluid flow channels, have significant
effects on reservoir quality and hydraulic fracturing engineering in shale oil reservoirs. Core …

Exploration and production from formations deposited in low‐gradient fluvial systems is
typically associated with a high degree of uncertainty; a reflection of the inherent …

The image logs played a key role in interpreting the lithology and sedimentary structures of
uncored units. An integrated analysis of the borehole images and open-hole logs, which are …