【摘要】 南山坪古油藏以南山坪背斜(圈闭)为依托,油藏的形成、破坏与背斜(圈闭)的形成及演化息息相关。加里东晚期-海西早期的构造运动形成了南山坪背斜的雏形,与之对应的是最初的油藏形成;南山坪背斜在印支运动得到加强,形成构造圈闭,与之对应的是原油藏裂解生气及烃源岩进入生气阶段,形成气藏及部分沥青。之后的燕山运动幕使得南山坪背斜(圈闭)被褶皱和断层复杂化,形成由东南向北西的逆冲断裂,其上覆盖层抬升、剥蚀,原油藏彻底破坏,成为古油藏。分析认为,南山坪古油藏的破坏因素主要是印支期的热裂解和燕山运动幕的构造抬升、剥蚀,且后者更为主导因素。比较南山坪古油藏、余杭泰山古油藏及威远气藏,力图寻找其共性及差异性,从而为中国南方的油气勘探提供借鉴意义。更多还原

【Abstract】 <Abstrcat>The Nanshanping fossil oil pool relies on the Nanshanping anticline(trap).The formation and destruction of the oil pool are closely connected with the evolution of the anticline(trap).The tectonic movement in Late Caledonian-Early Hercynian Period formed the embryo of the Nanshanping anticline,and the original oil pool formed. The Nanshanping anticline was strengthened by Indo-China movement, structural trap is formed .Then the original oil pool pyrolyzed and produced gas while the source rocks were at the stage of producing gas,and formed a gas pool and a part of bitumen. Later the Nanshanping anticline (trap) was complicated with folds and faults in the Ⅱ phase of the Yanshan movement,and formed thrust faults striking southeast to northwest. The uplift and erosion of the cover bed of the oil pool resulted in complete destruction of the pool which was a fossil oil pool later. The main destruction factors of the Nanshanping fossil oil pool are the pyrolysis in Indo-Chinese epoch and the uplift and erosion in the Ⅱ phase of the Yanshan movement. The later is the main factor. Comparison of the Nanshanping fossil oil pool with the Yuhang-Taishan fossil oil pool and the Weiyuan gas poolshows their commonness and distinction It can guide the oil and gas exploration in South China.更多还原