准南霍-玛-吐构造带紫泥泉子组油气成藏流体动力学特征  

Hydrodynamic characteristics of hydrocarbon accumulation in E_(1-2)z of Huo-Ma-Tu structural belt,southern Junggar Basin,NW China

作　　者：陈勇[1,2] 王鑫涛 方世虎[2] 张健[3] 赵孟军[2] 柳少波[2] 白振华[2] 

机构地区：[1]中国石油大学地球科学与技术学院,山东青岛266580 [2]中国石油勘探开发研究院提高石油采收率国家重点实验室,北京100083 [3]新疆油田勘探开发研究院,新疆乌鲁木齐830011

出　　处：《中国石油大学学报（自然科学版）》2013年第3期30-36,43,共8页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(41172111);中国石油科技创新基金项目(2010D-5006-0106);大型油气田及煤层气开发国家科技重大专项(2011ZX05003);中国石油勘探开发研究院项目(2011Y-003);中央高校基本科研业务费专项(10CX05004A;14CX06019A)

摘　　要：在区域热演化史和埋藏史基础上,通过对准噶尔盆地南缘霍-玛-吐构造带白垩系东沟组-古近系紫泥泉子组砂岩储层流体包裹体样品的系统分析,确定各期次油气成藏的主要时间,并对古近系紫泥泉子组在油气成藏期中的古流体势演化和油气运聚特征进行研究。结果表明:研究区主要经历了两期油气成藏,第一期主要在中新世中—晚期(距今约14～9 Ma),第二期主要在上新世中—晚期(距今约3.7～2.5 Ma);两期油气成藏的古流体势分布格局具有显著差异,第一期在吐谷鲁背斜区的古流体势最低,以聚集白垩系烃源岩生成的油为主,第二期在玛纳斯背斜区的古流体势演变为最低,以聚集中下侏罗统煤系烃源岩生成的气为主。Based on the reconstruction of burial history, thermal history and the analysis of fluid inclusion samples collected from the K2d-El_2z of Huo-Ma-Tu structural belt in the south of Junggar Basin, the stages of hydrocarbon accumulation in studied area were determined. The evolution of paleo-fluid potentials and characteristics in Ex_2Z during different stages of hy- drocarbon accumulation process were reconstructed through the data of the fluid inclusions. The results show that the studied area experienced two periods of hydrocarbon accumulation process, the first period mainly occurred in middle-late Miocene （ about 14 - 9 Ma）, while the second period mainly occurred in middle-late Plioeene（ about 3.7 ~ 2.5 Ma）. The distribution characteristics of paleo-fluid potential during these two periods of hydrocarbon accumulation are significantly different. In the first period, Tugulu anticline area was in the lowest potential area, which became the favorable area for accumulation of oil generated from Cretaceous source rocks. In the second period, Manasi anticline area became the lowest potential area, in which the gas generated by coal measures source rocks in the middle and lower Jurassic accumulated.

关 键 词：油气藏 成藏期次 古流体势 流体包裹体 霍-玛-吐构造带 准噶尔盆地南缘 

分 类 号：TE122.1[石油与天然气工程—油气勘探]