The most universal, comprehensive and concise descriptive documents on oil and gas wells are logs. They impact the work of almost every oilfield group from geologists to roustabouts to bankers.

The Iqe coalfield is one of the most significant coal production bases in the Qaidam Basin. Over the last few decades, core explorations have targeted the Dameigou Formation for No. 7 coal seam (M7).

This file type includes high-resolution graphics and schematics when applicable. Data-logging equipment for monitoring and recording events isn’t new. In fact, various forms of it date back decades ...