Fracture characteristics and hydrocarbon accumulation models of Paleogene in Yaerxia area
Shi Cun-ying1,2, Sun Xuedong1, Zhao Jianru1, Shi Qiao1, Li Wei3, Bai Zhichao2
1. GRI, BGP Inc., CNPC, Zhuozhou, Hebei 072750, China;
2. Research Institute of Exploration & Development, Yumen Oilfield Company Ltd., PetroChina, Jiuquan, Gansu 735000, China;
3. College of Geophysics and Information Engineering, China University of Petroleum(Beijing), Beijing 102249, China
Abstract：In order to understand oil and gas accumulation characteristics of the Qingxi-Laojunmiao complex fault zone in Jiuquan Basin, we carriy out a comprehensive study of fractures development characteristics and hydrocarbon accumulation in the Paleogene system in Yaerxia area. Through analysis of the fractures development and distribution in Yaerxia area, we conclude a clear relationship between faults and hydrocarbon source rocks, tectonic development and hydrocarbon migration. In combination with regional sedimentary characteristics research and the exploration situation of the study area, we clarify the basic regulation of hydrocarbon accumulation in this area and set up a hydrocarbon accumulation pattern of the Paleogene system in Yaerxia area. Based on the understanding of the hydrocarbon accumulation regularity, we optimize the favorable exploration blocks. Through our work, we clarify the important role of faults in hydrocarbon accumulation in Yaerxia area and propose series of methods for fault-stratigraphic reservoir exploration in complex fault zone of Qingxi-Laojunmiao.
石存英, 孙学栋, 赵建儒, 石桥, 李伟, 白志超. 鸭儿峡地区古近系断裂特征与油气成藏模式探讨[J]. 石油地球物理勘探, 2015, 50(6): 1190-1195.
Shi Cun-ying, Sun Xuedong, Zhao Jianru, Shi Qiao, Li Wei, Bai Zhichao. Fracture characteristics and hydrocarbon accumulation models of Paleogene in Yaerxia area. OGP, 2015, 50(6): 1190-1195.
Chen Hanlin, Yang Shufeng, Xiao Ancheng et al. Deformation characteristics and time of Cenozoic thrust belt in southern margin of Jiuquan basin. Oil & Gas Geology, 2006, 27(4):487-493.
Luo Qun. Concept, principle, model and significance of the fault controlling hydrocarbon theory. Petroleum Exploration and Development, 2010, 37(3):316-324.
Pan Liangyun, Xie Jielai, Li Mingjie et al. Cretaceous-Cenozoic regional tectonic evolution in Jiuquan basic and petroleum exploration. Oil & Gas Geology, 2006, 37(1):62-68.
[5]
Raphael F. Kinematics of transform and transcurrent faults.Tectonophsics.1974, 21(1-2):93-134.
[6]
徐嘉炜. 论走滑断层作用的几个主要问题. 地学前缘, 1995, 2(1-2):125-135.
Xu Jiawei. Some major problems on strike-slip faulting. Earth Science Frontiers, 1995, 2(1-2):125-135.
Wang Chongxiao, Ma Guofu, Zhou Zaihua.Structure evolution and sedimentary filling of Jiuquan Basin in Mesozoic Cenozoic period. Petroleum Exploration and Development, 2005, 32(1):33-36.
Lin Wei, Liu Bao, Lü Tao et al.Oil and gas sources of Laojunmiao structural belt in Jiuxi basin. Petroleum Exploration and Development, 2003, 30(2):30-32.
Zeng Xianbin, ZhangJinghua, Jin Hui et al. New opinions on oil and gas generation and exploration in Jiuxi basin(Ⅰ)-Basic petroleum and geological condition and oil-generating potential. Petroleum Exploration and Development, 2001, 28(1):19-22.
Pan Liangyun, Zeng Zuoxun, Li Mingjie et al. Mesozoic and Cenozoic fault superposition basin in Jiuquan and its oil-controlling significance. Acta Geologica Sinica, 2012, 86(4):535-545.
[12]
安作相. 老君庙油田形成的新观点. 新疆石油地质, 1998, 19(4):265-269.
An Zuoxiang. New viewpoint of forming Laojunmiao oil field.Xinjiang Petroleum Geology, 1998, 19(4):265-269.
