辽河油田锦31-锦146井区沙三中上亚段沉积相研究

发布时间：2018-02-11 19:54

  本文关键词： 辽河油田 沙三中上亚段 湖底扇 沉积相　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：锦31-锦146井区位于辽河坳陷西部凹陷的欢西油田南部,该区构造复杂,沉积发育规律认识不清,为了给该区天然气深度挖掘潜力提供技术支持,本文对该地区进行相关的沉积相研究。本文通过分析岩心、录井、测井和地震等资料,对研究区的地层进行了对比与划分,将目的层的沙三中亚段大凌河油层划分为大Ⅰ油层组、大Ⅱ油层组和大Ⅲ油层组三个油层组,沙三上亚段热河台油层分为热Ⅰ油层组和热Ⅱ油层组两个油层组。通过岩心资料、录井资料和测井资料分析,对研究区进行了沉积构造研究。基于本区的沉积背景和沉积特征,在岩心、录井、测井资料分析的基础上,结合前人的研究,确定了研究区大凌河油层和热河台油层发育深水环境下重力流机制形成的湖底扇沉积。本区发育的湖底扇沉积主要为中扇亚相和外扇亚相。其中,可进一步将中扇亚相划分为辫状主沟道、辫状沟道侧缘、辫状沟道间和前缘无水道砂微相。沉积相对储层的物性和含油气性有一定影响,研究表明,辫状主沟道和辫状沟道侧缘微相孔隙度和渗透率较高,油、气层也主要分布在辫状主沟道和辫状沟道侧缘微相。
[Abstract]:The Jin31-Jin146 well area is located in the south of Huanxi Oilfield in the western depression of Liaohe Depression. The structure of this area is complex and the rules of sedimentary development are not clear. In order to provide technical support for the mining potential of natural gas depth in this area, In this paper, the relevant sedimentary facies in this area are studied. By analyzing the core, logging, logging and seismic data, the strata in the study area are compared and divided. The Dalinghe reservoir in the middle part of Sha 3 in the target layer is divided into three formations: Da-I reservoir, Da-II reservoir and Da-鈪，

本文编号：1503868