本文選題：東營凹陷　切入點：沙三段　出處：《中國地質(zhì)大學(北京)》2017年碩士論文

【摘要】：本研究內(nèi)容所屬區(qū)域位于東營凹陷南部斜坡的東側(cè)。從地理位置角度,該區(qū)處于山東省東營區(qū)的南側(cè),廣饒縣的東北側(cè)。研究區(qū)為東營凹陷中央隆起帶西段、牛莊凹陷東部,研究層段為沙河街組,沙三段。其沙三段的埋藏深度為1400米-2800米,地層厚度為700米-1400米。本文借助沉積學、層序地層學等理論為指導,選取56口井資料豐富的探井,綜合運用巖心資料、測井資料、錄井資料、地震分析及其它地球化學等資料,結(jié)合研究區(qū)前人研究成果,針對研究區(qū)現(xiàn)階段勘探開發(fā)現(xiàn)狀及存在的問題,分析研究區(qū)沉積微相特征及沉積體系研究。利用在巖性特征、地震反射特征、測井曲線特征等出現(xiàn)的特殊反饋,建立層序邊界標志及標準層,構(gòu)建了該區(qū)域?qū)有虻貙痈窦�。將沙三段劃分�?個三級層序。從下到上分別為沙三段下層序SQIII-1、沙三段中層序SQIII-2、沙三段上層序SQIII-3。并且依據(jù)三級層序,將其細化分為7個四級層序,分別為SQIII-1-1、SQIII-1-2、SQIII-2-1、SQIII-2-2、SQIII-2-3、SQIII-3-1、SQIII-3-2。對研究區(qū)巖心數(shù)據(jù)、錄井數(shù)據(jù)、測井數(shù)據(jù)及前人研究成果分析,結(jié)合巖石類型、沉積構(gòu)造、古生物化石等可靠相標志,對山東省東營市王家崗地區(qū)沙三段沉積時期的沉積相進行劃分。明確了研究區(qū)沉積相、亞相及微相類型及特征,建立了沉積相模式。該研究針對該區(qū)域沉積相的不同種類進行分析,并對其空間的展布順序進行研究。從整體的角度闡述了該區(qū)域沉積相的分布規(guī)律以及其演化發(fā)展,并根據(jù)研究成果對有利儲油砂體砂層進行了預測分析。
[Abstract]:The research area is located on the east side of the southern slope of Dongying Sag. From the geographical point of view, the area is located in the south side of Dongying District of Shandong Province and the northeast side of Guangrao County. The research area is the western section of the central uplift belt of Dongying Sag and the eastern part of Niuzhuang Sag. The study layer is Shahejie formation and Sha3 formation. The buried depth and thickness of the formation are 1400 m -2800 m and 700m -1400 m respectively. In this paper, 56 wells with abundant data are selected under the guidance of sedimentology, sequence stratigraphy and other theories. Based on the core data, logging data, logging data, seismic analysis and other geochemical data, combined with previous research results in the study area, this paper aims at the present situation of exploration and development and the existing problems in the study area. The characteristics of sedimentary microfacies and sedimentary system in the study area are analyzed. Based on the special feedback such as lithologic characteristics, seismic reflection characteristics and logging curve characteristics, the sequence boundary markers and standard layers are established. The sequence stratigraphic framework of the region is constructed. The third member is divided into three third-order sequences. From the bottom to the top, the lower sequence SQIII-1, the middle sequence SQIII-2 and the upper sequence SQIII-3of the third member of Shahejie formation are classified into seven four-order sequences. SQIII-1-1, SQIII-1-2, SQIII-2-1, SQIII-2-2, SQIII-2-2, SQIII-2-3, SQIII-3-1, SQIII-3-2, SQIII-2-2, SQIII-2-2, SQIII-2-2, SQIII-2-2, SQIII-2-1, SQIII-2-2. The sedimentary facies of the third member of Shahejie formation in Wangjiagang area, Dongying City, Shandong Province are divided. The types and characteristics of sedimentary facies, subfacies and microfacies in the study area are defined. The model of sedimentary facies is established. In this study, different types of sedimentary facies in the region are analyzed, and the spatial distribution sequence of sedimentary facies is studied. The distribution law and evolution of sedimentary facies in this region are expounded from the whole view. According to the research results, the sand reservoir of favorable oil storage sand body is forecasted and analyzed.
【學位授予單位】：中國地質(zhì)大學(北京)
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：P618.13;TE311

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