According to the high insomnia pollen oil and gas system

Abstract

This paper points out the limitations of Magoon's method of dividing petroleum systems based on the number of mature source rock bodies. Based on the petroleum potential energy theory, a new method of dividing petroleum systems based on main high-potential surfaces is proposed. In profile, the main high-potential surfaces are mostly regionally distributed source rock layers, lithological dense layers or diagenetic dense belts; in plane, the high-potential surfaces are oil and gas dividing grooves, mainly basin axes or large fault zones with good sealing properties, which further divide the petroleum system into multiple sub-petroleum systems. The northern and eastern areas of the Songliao Basin can be divided into three sets of petroleum systems: upper, middle and lower; in plane, the lower petroleum system can be further divided into five sub-petroleum systems.