王家岗—八面河地区潜山残留地层发育特征及控制因素  

Developing Characteristics and Controlling Factors of Buried-Hill Residual Formation in Wangjiagang-Bamianhe Area

作　　者：杨怀宇[1,2] Yang Huaiyu(Geological Research Institute,Shengli Oilfield Company,SINOPEC,Dongying 257000,Shandong,China;Working Stations for Postdoctors,Shengli Oilfield Company,SINOPEC,Dongying 257000,Shandong,China)

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257000 [2]中国石化胜利油田博士后流动工作站,山东东营257000

出　　处：《吉林大学学报（地球科学版）》2018年第6期1625-1634,共10页Journal of Jilin University：Earth Science Edition

基　　金：国家科技重大专项(2011ZX05006);中国石化胜利油田分公司科技攻关项目(YKB1214)~~

摘　　要：东营凹陷南坡王家岗—八面河地区潜山勘探程度很低,复杂的残留地层结构及其发育模式认识不清严重制约潜山的精细勘探。本文综合运用野外岩石地层对比、古生物时代划分与地震资料标定和追踪等多方法联合分析,初步明确残留地层的平面展布特征,同时基于构造演化恢复技术明确多期构造运动对地层剥蚀、残留的控制作用。研究表明:研究区遭受印支运动挤压成山、燕山运动拉张裂陷等多幕构造运动影响,残留地层表现为近东西向"跷跷板"式的产状模式;一系列北西向断层控制着中—古生界沿北西向展布,北西向断层上升盘地层普遍剥蚀严重,下降盘中生界具有"近厚远薄"特征、上古生界具有"薄底或凸底"特征而下古生界厚度则较为稳定。The buried-hill in Wangjiagang-Bamianhe area has a low exploration degree in the south slope of Dongying depression.Its complicated residual stratigraphic structure and unclear development pattern seriously restrict the buried-hill exploration.In this study,the distribution of the residual formation was determined by lithostratigraphic correlation in field,pale-biostratigraphic division,and seismic calibration and trace;meanwhile,based on the technology of tectonic evolution recovery,the control of multiple tectonic movements on formation erosion and residual is clarified.The results show that the study area was affected by many tectonic movements such as the compressional orogenesis of Indo-china movement and extensional rifting of Yanshan movement,the residual strata of buried-hill show a pattern of seesaw type in east-west direction because of the frequent squeezing and stretching;simultaneously,the Mesozoic-Paleozoic formation was controlled by a series of north-west faults.The formation in the uplifted side of north-west faults generally is eroded seriously;while in the downthrown side,the Mesozoic is characterized by the characteristics of“near thick far thin”,and the Upper Paleozoic has the characteristics of:“thin or convex bottom”,and the formation of Lower Paleozoic is stable.

关 键 词：王家岗-八面河地区 中-古生界潜山 残留地层 控制因素 东营凹陷 

分 类 号：P618.13[天文地球—矿床学]