【作者】 杜贵嵘；

【导师】 赖生华；

【作者基本信息】 西安石油大学 ， 矿产普查与勘探， 2010， 硕士

【摘要】 板桥-滨海地区位于渤海湾盆地黄骅坳陷中部,紧邻沧县隆起。本文选取了该地区沙三段作为研究的关键层位,以沉积学、测井地质、地震地层学、地震沉积学、古地貌恢复及沉积体制理论等理论和方法,开展该地区沉积体系研究,揭示板桥-滨海地区沉积体系分布规律。首先利用钻井岩心、测井、地震和室内测试分析资料,认为研究区沙三段为湖相沉积体系,并识别出扇三角洲、辫状河三角洲、近岸水下扇、远岸水下扇及湖泊5种沉积相,并对各亚相和微相进行了详细分析。钻井岩心与测井结合,识别出7种测井相。齿化箱形、钟形、齿化钟形主要反映水道沉积；齿化漏斗形、指状主要反映砂坝沉积；尖峰形主要反映席状砂。井震结合,建立沙三段沉积—地震响应模式。丘状相和透镜状相主要代表了砂坝；充填相主要与各种水道有关；前积相反映扇三角洲；平行相主要反映了湖泊中的湖泥与砂岩互层的特点；乱岗相是盆底扇复合体。古地貌恢复表明,断裂系统决定了古地貌特征。断洼区不仅是沉积物搬运的通道,而且是有利砂岩富集的沉积场所,。结合古地貌特征、单井相分析、连井相分析、砂体空间分布特征及地震属性的资料。研究认为,在沙三沉积时期,沙三3发育扇三角洲和辫状河三角洲。沙三2、沙三1发育近岸水下扇和远岸水下扇复合体、扇三角洲、辫状河三角洲。更多还原

【Abstract】 Banqiao-Binhai area is located in the central part of Huanghua DePression of Bohai Bay Basin,closing to Cangxian Uplift.The third member of Shahejie Formation area is studied in this thesis based on the theory and the method of sedimentology, Geological Logging, Seismic stratigraphy, Seismic sedimentology, Paleogeomorphic reconstruction and depositional regime.The purpose of this study is to reveal the distribution of depositional systemsThe lake depositional system in this area and five type of facies,including fan delta, Braided river delta,Nearshore Subaqueous Fans,farshore Subaqueous Fans,lake,and analyses sedimentary facies,subfacies are identified combining the drilling core,well log,seismic and interior testing analysis.The microfacies and pressure phase are also studied in detail.Seven types logging facies is identified by combining drilling core and well log in this thesis.The channel deposition is mainly reflected by theTeeth of box log,bell log and Teeth of bell log;The sand sheet is reflected by the Teeth of Funnel-shaped log and finger log reflect bar, Spiking log.The response mode of deposition and seismic of the third member of Shahejie Formation is constructed by combining the information of drilling core and seismic. The paper considered that mounded facies and lensing facies reflect bar;There is preferable relationship between filling facies and channel;foreset facies reflect fan delta;paralleling facies reflect characteristic of interbed of lake mud and sandstone in lake;chaotic facies reflect basin floor fan complex.Paleogeomorphic reconstruction indicates that fault system decides paleogeomorphic characteristic.Fault depression is not only the channel of transportation, but also the sandstone deposition site.Based on paleogeomorphic characteristics,Single well facies analysis,connecting well facies analysis,spatial distribution of sand characteristics and seismic attributes dates.The research considers that during the sedimentation of ES3,Fan delta and Braided river delta are developed in ES33,while Complex fan of Nearshore Subaqueous Fans and Farshore Subaqueous Fans,Fan delta and Braided river delta are developed during ES32 and ES31.更多还原