南泥湾油田长6差薄油层生产动态特征及开发对策研究

发布时间：2018-04-09 20:01

本文选题：差薄油层　切入点：生产动态　出处：《西安石油大学》2017年硕士论文

【摘要】：南泥湾油田S区位于鄂尔多斯盆地一级构造单元陕北斜坡中部,研究区综合含水率不高,地层能量偏低,随着勘探开发的不断深入,现已进入深度开发阶段,优质储量越来越少,为了挖掘油藏的开发潜力,加大老油田研究的精细程度,提高采收率,现对差薄油层等非主力油层进行研究。本文首先开展了研究区储层地质特征的研究,综合利用地质、测井等资料,针对沉积相、岩石类型、储层物性非均质性等储层地质特征进行描述。在此基础上确定出差薄油层有效厚度下限,并进行了差薄油层储量计算。并由差薄油层识别标准和测井二次解释结果统计筛选出所研究差薄油层,分别对其动用程度和分布特征进行研究。在已有研究成果和差薄油层生产动态资料的基础上进行生产动态特征研究进行分类研究。利用数值模拟方法进行剩余油研究,为开发对策提供依据,优选差薄油层的开发方式,确定了本区差薄油层的开发对策,利用油藏工程方法确定出了差薄油层开发合理技术政策界限。通过地质、油藏工程及数值模拟研究后认为,本区差薄油层储量丰富,开发潜力巨大,动用程度较低,平面上呈零散分布,开发方式应优先选择注水开发并配合压裂改造,补孔、新井部署开发措施能最大程度上开发差薄油层。
[Abstract]:The S area of Nanniwan Oilfield is located in the middle of the northern Shaanxi slope of the primary structural unit of the Ordos Basin. The comprehensive water cut is not high and the formation energy is low in the study area. With the deepening of exploration and development, it has now entered the stage of deep development.In order to exploit the development potential of the reservoir, increase the fine degree of the research in the old oil field and improve the oil recovery, the non-main reservoirs such as the poor and thin oil layers are studied in order to exploit the high quality reserves more and less.In this paper, the reservoir geological characteristics of the study area are studied firstly. The geological characteristics of the reservoir such as sedimentary facies, rock types and reservoir physical heterogeneity are described by comprehensive use of geological, logging and other data.On the basis of this, the effective thickness lower limit of travel thin reservoir is determined, and the reserve of poor thin reservoir is calculated.According to the identification standard of thin reservoir and the result of secondary interpretation of logging, the study of thin oil layer is selected, and the production degree and distribution characteristics of the reservoir are studied respectively.On the basis of the existing research results and the production dynamic data of the thin reservoir, the characteristics of the production dynamics are studied and classified.The residual oil is studied by numerical simulation method, which provides the basis for the development countermeasure, optimizes the development mode of the poor thin oil reservoir, and determines the development countermeasure of the poor thin oil reservoir in this area.The reasonable technical policy limits for the development of thin reservoir are determined by reservoir engineering method.Through geological, reservoir engineering and numerical simulation studies, it is considered that the area has abundant reserves, huge development potential, low production degree and scattered distribution on the plane, so water injection development and fracturing reconstruction should be preferred in the development mode.Hole filling, new well deployment development measures can maximize the development of poor thin reservoir.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE331;TE34

【相似文献】