松辽盆地肇10井区葡萄花油层评价与部署

发布时间：2018-04-24 10:38

本文选题：松辽盆地肇 + 10井区沉积微相储层特征储量丰度评价　；参考：《中国地质大学(北京)》2015年硕士论文

【摘要】：松辽盆地肇10井区位置处于黑龙江省大庆市肇州县境内,面积为8.21km2。井区葡萄花油层是典型的低渗透油藏,其存在地质特征认知不清,评价级次较低等问题,论文结合前人的研究成果,充分运用构造地质学、沉积岩石学和石油地质学等理论,对葡萄花油藏的地质特征进行了深入的分析与总结。通过对该区的构造特征、沉积微相、储层与油藏特征进行的研究分析,最终对井区的储量进行综合评价,并提出了新井部署方案,取得的认识成果主要有:(1)深化了区块构造特征,研究区断层分布复杂,主要发育近南北向与近东西向断层相互切割而成棋盘状断块构造。(2)识别出井区内葡萄花油层主要发育水下分流河道、河口坝、席状砂和前缘泥4种沉积微相。指出各小层沉积微相的展布具有相似性,主体发育为一条从西北方向进入向东南方向延伸的水下分流河道,局部发育河口坝,并广泛分布席状砂。(3)明确井区储层整体表现为低孔低渗的特征,根据孔隙度、渗透率和泥质含量3项参数将储层具体划分为三类,以集中分布在水下分流河道和席状砂中的B类储层为主。(4)井区油藏类型主要为受构造控制的断块油气藏。将井区划分为8个小断块,并根据储量丰度对其进行了评价,评价出Ⅰ级断块4个,Ⅱ级断块4个,重点对评价级别高的断块进行井位部署。
[Abstract]:Zhaozhou County, Daqing City, Heilongjiang Province is located in Zhao10 well area of Songliao Basin with an area of 8.21km2. The Putaohua reservoir in well area is a typical low permeability reservoir, which has some problems such as unclear cognition of geological characteristics and low evaluation level. In this paper, the theories of tectonic geology, sedimentary petrology and petroleum geology are fully utilized in combination with the previous research results. The geological characteristics of grape flower reservoir are analyzed and summarized. Through the study and analysis of the structural characteristics, sedimentary microfacies, reservoir and reservoir characteristics in this area, the reserves in the well area are evaluated synthetically, and a new well arrangement scheme is put forward. The main results obtained are as follows: (1) deepening the structural characteristics of the block, and the distribution of faults in the study area is complex. A chessboard fault block structure, which is mainly cut from the nearly north-south and near-east-west faults, is used to identify four sedimentary microfacies in the Gaohua oil reservoir in the well area, such as underwater distributary channel, estuarine dam, sheet sand and front mud. It is pointed out that the distribution of sedimentary microfacies in each layer is similar, and the main body is an underwater distributary channel extending from northwest to southeast, and the estuarine dam is locally developed. It is clear that the reservoir in the well area is characterized by low porosity and low permeability. According to the three parameters of porosity, permeability and muddy content, the reservoir can be classified into three categories. The type B reservoir in the subaqueous distributary channel and sheet sand is the main reservoir type in the well area. The reservoir type is mainly fault-block oil and gas reservoir controlled by structure. The well area is divided into 8 small fault blocks and evaluated according to the reserve abundance, and 4 grade I and II fault blocks are evaluated, with emphasis on well location deployment of high grade fault blocks.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE31;P618.13

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