• 首页
  • 学报简介
  • 编委会
  • 投稿指南
  • 订阅指南
  • 过刊浏览
  • 在线投稿
  • 联系我们
  • 网络预出版
  • English

本文将参加年度优秀论文评选,如果您觉得这篇文章很好,请投下您宝贵的一票,谢谢! 支持(0)   不支持(0)

潍北凹陷走滑断裂体系特征及其控藏作用
投稿时间:2019-04-13  修订日期:2020-03-11  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2020052
摘要点击次数: 79
全文下载次数: 62
作者单位E-mail
陈登超 中国石化胜利油田勘探开发研究院 chendengchao1985@126.com 
杨贵丽 中国石化胜利油田勘探开发研究院  
马立驰 中国石化胜利油田勘探开发研究院  
刘晓林 中国石化胜利油田勘探开发研究院  
辛也 中国石化胜利油田勘探开发研究院中国石油化工集团公司胜利石油管理局博士后科研工作站  
田雯 中国石化胜利油田勘探开发研究院中国石油化工集团公司胜利石油管理局博士后科研工作站  
王园园 中国石化胜利油田勘探开发研究院  
王志英 中国石化胜利油田勘探开发研究院  
郝冉冉 中国石化胜利油田勘探开发研究院  
中文摘要:潍北凹陷是郯庐断裂走滑活动形成的走滑拉分盆地,走滑作用对断裂体系演化、圈闭形成及油气成藏起到了控制作用。孔二段沉积时期处于拉张断陷兼弱左旋走滑阶段,主要发育近东西向-北西向拉张性质断层和北东向-近南北向走滑性质断层,在凹陷中东部发育东部、西部、中部三个弱走滑断裂带;孔一段沉积时期处于右旋走滑阶段,北东向-近南北向走滑断层发育明显增强,拉张性断层由近东西向转变为北东东向。郯庐断裂多期次走滑活动形成了大量走滑构造圈闭及走滑伸展构造圈闭,并影响或改造了伸展构造圈闭和地层圈闭,为油气聚集提供了圈闭条件。此外,郯庐断裂走滑活动控制了潍北凹陷油气的运聚。宏观上,走滑活动导致了灶户鼻状构造带的隆升和上覆地层的剥蚀,为油气向鼻状构造带运聚提供了动力;微观上,油气沿右旋走滑形成的近东西向拉张断层,在走滑旋扭“拧毛巾”作用下,自西向东运移,并被北北东向-近南北向走滑断层封堵成藏;宏观与微观共同作用下,与三个弱走滑断裂带相对应,孔店组油气平面展布具有“近东西向延伸,南北带状展布”的特征。中部弱走滑断裂带北端及中段是下步重点勘探方向,西部弱走滑断裂带可作为致密砂岩油藏和页岩油气的攻关地区。
中文关键词:潍北凹陷  走滑断裂体系  控藏作用  油藏展布规律  勘探方向
 
Characteristics of the Strike-slip Fault System and Their Control Actions on the Hydrocarbon Accumulation for Weibei Sag
Author NameAffiliationE-mail
chendengchao Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC chendengchao1985@126.com 
yangguili Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC  
malichi Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC  
liuxiaolin Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC  
xinye Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC。Postdoctorate Scientific Research StationShengli Oil AdministrationSINOPEC  
tianwen Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC。Postdoctorate Scientific Research StationShengli Oil AdministrationSINOPEC  
wangyuanyuan Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC  
wangzhiying Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC  
haoranran Research Institute of Exploration and Development, Shengli Oilfield Company, SINOPEC  
Abstract:Weibei Sag was a strike-slip pull-apart basin, which formed by the strike-slip actives of the Tan-lu fault, and the strike-slip actives played an important role on the evolution of fault system, the forming of the trap, and the hydrocarbon accumulation in Weibei Sag. During the sedimentation of Ek_2 formation, Weibei Sag was in fault-depression stage with weak sinistral strike-slip movement, mainly developed two types faults: tensile fault with nearly east-west direction to northwest direction, and strike-slip fault in northeast to nearly north-south direction. They formed three weak strike slip fault zones according to their positons: named east, middle and west weak strike-slip fault zone respectively. While the sedimentation of Ek_1 formation, the tectonic evolution was changed into right-lateral strike-slip stage, the strike-slip fault with right-lateral strike-slip strongly active, and the direction of tensile fault changed from nearly east-west to northeast by east. The multiple strike-slip activities of Tan-lu fault formed massive strike-slip structure traps and strike-slip extensional traps, and affected or changed the formation of extensional traps and stratigraphic traps, thus provided the trap condition for the hydrocarbon accumulation. In addition, the activities of Tan-lu fault controlled the hydrocarbon accumulation in Weibei Sag. Macroscopic view, the activities of strike-slip fault consulted the uplift of the Zaohu Nose structure belt and the erosion of the overlying strata, provided the dynamics for the oil and gas migration to Zaohu Nose structure belt. In microscopic scales, due to the strike-slip rotation-shearing actions, the oil and gas migrated from west to east along the tensile fault in east-west direction, and sealed by the strike-slip fault in south-north direction. Corresponding to the three weak strike-slip fault belt, the planar distribution of oil and gas in Kongdian formation showed characteristics of “extend in east-west direction” and “zonal distribution in south-north direction”. The middle & north part of the middle weak strike-slip fault belt is the key exploration direction for Weibei Sag at present, and the west weak strike-slip fault belt could to be the study area for tight stone reservoirs and shale oil and gas.
keywords:Weibei Sag  Strike-slip fault system  Control actions on hydrocarbon accumulation  Reservoirs distribution  Exploration direction
查看全文  查看/发表评论  下载PDF阅读器
您是第14180979位访问者  京ICP备05032737号-7  京公网 安备110102004559
版权所有:《地质学报》中文版
主管单位:中国科学技术协会 主办单位:中国地质学会
地  址: 北京市西城区百万庄大街26号 邮编:100037 电话:010-68312410,010-68999025 E-mail: dizhixuebao@163.com
本系统由北京勤云科技发展有限公司设计 

京公网安备 11010202007916号

WeChat