摘要
通过对烃源岩、原油物化特征、流体包裹体均一化温度以及埋藏史-热史等的研究,综合分析了莫索湾地区的成藏期,确定其主要成藏期有三次:第一期油气运移发生在中侏罗世末期(168Ma左右),但形成的油气藏遭到严重破坏,生物降解现象严重;第二期油气运移发生在早白垩世末期(115Ma左右),形成的油气藏得到较好的保存,并且在全区分布最为普遍;第三期油气运移发生在第三纪末期(3Ma左右),原油成熟度较高且物性较好,表现为密度、粘度、凝固点和含蜡量均较低。
Based on researching source rock, physical and chemical characteristic of oil, homogenization temperature of fluid inclusions and the basin evolution, the period of oil and gas accumulation in Mosuowan area is analyzed in the paper, finally it is established that there have been three times of the filling and entrapping stages of petroleum to the oil reservoirs:the first time occurred in the end of middle Jurassic about 168 Ma, oil reservoirs were badly destroyed, and there is badly biodegradation; the second time occurred in the end of early Cretaceous about 115 Ma, oil reservoirs were well saved, and distributed widely; the third time occurred in the end of Tertiary about 3 Ma., the maturity of oil is high and physical characteristic of oil is well, and oil is characterized by low density, low viscosity , low solidifying point and low wax content as well.
出处
《新疆石油学院学报》
2004年第4期14-17,共4页
Journal of Xinjiang Petroleum Institute
关键词
莫索湾地区
烃源岩
埋藏史
流体包裹体
成藏期
Mosuowan area
source rock
burial history
fluid inclusions
period of oil and gas accumulation
