Essential elements, i.e. source rocks, reservoir rocks, seal rocks, overburden rocks, and the related geological processes are involved in the petroleum system.

• 在油气探勘作业上，整合地质、地物及地化资料，进行石油系统的成因分析，包括油气生对移聚和封存，可以评估其油气潜能，做为矿区筛选及排序的重要依据。