A proposed technique determines the hydrocarbon recovery factor and mobility from resistivity logs. This technique provides the petrophysicist with the following benefits: In the early stage of a well ...

Five boreholes were selected in the Gujiao block, Xishan, Taiyuan, China, as calibration wells to identify the coal structure. The geophysical-log responses of the coal structure in the No. 8 coal ...

Well logging chronicles the depths, subsurface formations and events encountered while drilling. Well logs can include visual observations or be made by instruments lowered into the well during ...

To analyze whether a zone will produce water-free from a low-resistivity formation, one can use several shaly sand models that correct log-indicated water saturations to obtain true formation water ...