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 ...

Well logging is the practice of recording and analyzing various kinds of data about the rock formations around a borehole during or after drilling. Also called borehole logging, this activity aims to ...

A study established a quantitative fracture identification method for the igneous reservoir rock in the Xingcheng group of Xushen gas field, a field near Daqing in northeastern China. The method uses ...