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东濮凹陷马厂地区油气成藏机理分析 被引量:3

Analysis on hydrocarbon accumulation mechanism in Machang Area of Dongpu Depression
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摘要 为了理清马厂地区油气成藏机理特征,通过对马厂地区原油饱和烃、芳烃、非烃及沥青质等资料的分析,得出马厂地区存在2大类原油,2类原油均为成熟原油,但原油的成熟度存在高低。整体上,构造顶部的原油成熟度偏低,构造翼部的原油成熟度偏高;原油成熟度自构造顶部到构造翼部呈逐渐增大的趋势。通过对该区的烃源岩特征、断裂发育史、油气充注史等资料的综合分析,认为马厂地区构造顶部原油的成熟度主要与马东断裂的有序活动引起原油的有序充注有关,构造翼部原油的成熟度主要与东营构造时期的剥蚀厚度及后期沉积厚度大小有关。 In order to clarify the characteristics of hydrocarbon accumulation mechanism in Machang Area, this paper analyzes the data of saturated hydrocarbon, aromatic hydrocarbon and asphahene of crude oil in Machang Area. The resuhs show that there are two kinds of crude oils, which are all mature crude oils with different maturity. On the whole, the crude oils on the top structure have low maturity, while the crude oils on the wing structure have high maturity. The maturity of crude oils is increasing gradually from the top to the wing structure. By analyzing the cbaracteristics of hydrocarbon source rock, fracture development bistory and hydrocarbon charge history, it is considered that the maturity difference of crude oils on the top structure depends on the orderly filling of crude oils caused by the orderly activities of Madong fracture and the maturity difference of crude oils on the wing structure mainly depends on the denudation thickness in Dongying tectonic period and the size of late sedimentary thickness.
作者 国殿斌 房倩
出处 《断块油气田》 CAS 2012年第1期1-5,共5页 Fault-Block Oil & Gas Field
基金 "十二五"国家科技重大专项"东濮凹陷油气富集规律与增储领域"(2011ZX05006-004-07)
关键词 原油成熟度 成藏机理 断裂有序活动 马厂地区 东濮凹陷 crude oil maturity accumulation mechanism orderly activity of fracture Machang Area Dongpu Depression
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