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地质力学学报:2018,24(5):587-597
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断裂应力特征及其转折控油气规律研究——以南堡凹陷为例
马强1, 德勒恰提·加娜塔依1, 陈亚军2, 马乐3, 于景维4, 祁利祺4
(1.新疆大学地质与矿业工程学院, 新疆 乌鲁木齐 830000;2.中国煤炭地质总局水文地质工程地质环境地质勘查院, 河北 邯郸 056004;3.玉门油田酒东采油厂, 甘肃 酒泉 735200;4.中国石油大学(克拉玛依校区), 新疆 克拉玛依 834000)
A STUDY ON FAULT STRESS CHARACTERISTICS AND THE LAW OF OIL AND GAS CONTROLLING BY FAULT DEFLECTING: A CASE STUDY OF THE NANPU DEPRESSION
MA Qiang1, DELEQIATI·Jantay1, CHEN Yajun2, MA Le3, YU Jingwei4, QI Liqi4
(1.Xinjiang University Institute of Geology and Mining Engineering, Urumqi 830000, Xinjiang, China;2.Institute of Exploration for Hydrogeology, Engineering Geology and Environmental Geology, China National Administration of Coal Geology, Handan 056004, Hebei, China;3.Yumen Oil field Jiudong Oil Mining Factory, Jiuquan 735200, Gansu, China;4.China University of Petroleum, Karamay 834000, Xinjiang, China)
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投稿时间:2018-03-26    修订日期:2018-05-28
中文摘要: 为了分析断裂对油气宏观分布规律的控制作用,寻找有勘探潜力的油气富集带,文中以地质力学理论为指导,对南堡凹陷断裂组合应力特征、断裂转折及成因进行解析,并结合砂体分布和古今构造应力场分布特征,对南堡凹陷东营组油气分布规律和有利勘探区带做了研究。结果表明:断裂转折部位对油气分布有着控制作用,东营组已探明的油气主要在帚状断裂系、入字形断裂系、交织式断裂系转折轴部高曲率附近呈环带状分布;断裂转折凹面一侧控油性明显,从宏观上来看,油气具有沿沉积相带由细到粗的构造脊高点以及弧形断裂转折凹面一侧的选择性运移的特征,断裂转折轴部高曲率高孔、高渗域与高孔、高渗砂体沉积相带的有利对置决定了油气的主流向;综合研究指出,南堡凹陷北堡构造带是今后优势勘探的首要区带,其次是南堡构造带和南堡4号蛤坨构造带南部。
Abstract:In order to find out the control effects of faults on the macroscopic distribution of oil and gas and look for the oil and gas accumulation zones with exploration potential, taking the geomechanics theory as a guide, the combined stress characteristics of faults, the fault deflecting and the causes in the Nanpu Depression are analyzed, and the oil and gas distribution law and favorable exploration zones in Dongying formation of the Nanpu Depression are studied combined with the characteristics of sand body distribution and ancient and modern tectonic stress field distribution. The results show that the fault deflecting controls the distribution of oil and gas, and the proven oil and gas in Dongying formation mainly shows a circular band distribution near the high curvature of the deflecting shaft of the broom-shaped fault system, the λ-type fault system and the interlaced-type fault system. The oil-controlling property on the concave side of the fault deflecting is obvious. Macroscopically, the oil and gas has the characteristics of selective migration along the sedimentary facies belt from fine to thick tectonic ridge highs and on the concave side of arc fault deflecting. The main direction of the oil and gas is determined by the favorable alignment of high curvature and high porosity, high permeability domain and high porosity, and high permeability sand body sedimentary facies zone in the fault deflecting shaft. The comprehensive study indicates that the Beibu structural belt in the Nanpu Depression is the primary zone for superior exploration in the future, followed by the Nanpu structural belt and the south of the Nanpu No.4 Getuo structural belt.
文章编号:     中图分类号:P551    文献标志码:
基金项目:国家自然科学基金(41562008)
引用文本:
马强,德勒恰提·加娜塔依,陈亚军,马乐,于景维,祁利祺.断裂应力特征及其转折控油气规律研究——以南堡凹陷为例[J].地质力学学报,2018,24(5):587-597DOI:10.12090/j.issn.1006-6616.2018.24.05.059
MA Qiang,DELEQIATI·Jantay,CHEN Yajun,MA Le,YU Jingwei,QI Liqi.A STUDY ON FAULT STRESS CHARACTERISTICS AND THE LAW OF OIL AND GAS CONTROLLING BY FAULT DEFLECTING: A CASE STUDY OF THE NANPU DEPRESSION[J].,2018,24(5):587-597DOI:10.12090/j.issn.1006-6616.2018.24.05.059

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