Maturation of petroleum in the inlap-pinch Zones and in Lu 4 are at the same stage of evolution and have the same geochemical properties and geochemistry.

• 远离生烃凹陷西南缘克拉玛依超覆尖灭带、东北部陆4井区等油气处于相同演化阶段，为成熟油气。