东营凹陷青西地区断裂特征及其控油气作用

发布时间：2018-04-13 08:18

本文选题：油源断裂 + 断层活动性　；参考：《断块油气田》2017年02期

【摘要】：以研究区地质、地球物理资料为基础,通过油源断层厘定、关键时期断层活动性分析及封闭性计算,探讨了东营凹陷青西地区断裂特征及其对油气的控制作用。结果表明,研究区主要发育EW向、SN向与NW—SE向3组断裂,不同断裂体系相互切割,形成了研究区复杂断块型圈闭。研究区主要发育7条油源断裂,均为近EW向断裂;油源断裂控制了平面上油气的宏观分布,其中①,④,⑤号断裂控制辛镇构造的油气分布,⑤,⑥,⑦号断裂为永安镇构造输导油气,新立村地区油气主要依靠②,③,⑤号断裂输导;纵向上,断层的封闭能力控制了油气的差异富集,油气主要富集于砂泥对接同时断裂泥比率SGR大于40%的部位。
[Abstract]:Based on the geological and geophysical data of the study area, through the determination of oil-source faults, fault activity analysis and sealing calculation in key periods, the fault characteristics and their controlling effect on oil and gas in Qingxi area of Dongying depression are discussed.The results show that there are mainly three groups of faults in EW direction, SN direction and NW-SE direction in the study area. Different fault systems cut each other, forming a complex fault block trap in the study area.In the study area, there are mainly 7 oil-source faults, all of which are near EW faults, the oil-source faults control the macroscopic distribution of oil and gas on the plane, and the oil and gas distribution of Xinzhen structure is controlled by the 1 ~ (4) and 5 ~ (th) faults.Fault No. 7 is oil and gas transported by Yonganzhen structure, oil and gas in Xinlicun area mainly depend on fault 2Q3, 5, and the sealing ability of fault controls the differential enrichment of oil and gas in longitudinally.Oil and gas are mainly concentrated in the area where the ratio of sand mud to mud is more than 40% at the same time the fault mud ratio is more than 40%.
【作者单位】：中国地质大学(北京)能源学院;
【基金】：国家科技重大专项课题“渤海湾盆地精细勘探关键技术”(2011ZX05006-006)
【分类号】：P618.13

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