廊固凹陷沙四上亚段河西务构造带碎屑岩储层特征及分类评价  

Reservoir Characteristics and Evaluation of Es4s in Hexiwu Structural Belt of Langgu Depression

作　　者：陈彦梅[1] 徐芳艮 蓝宝峰 陈智远[1] 张平[1] 黄加力 张新桂[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]中国石油华北油田分公司石油勘探开发研究院,河北任丘062552

出　　处：《山东化工》2016年第16期92-94,共3页Shandong Chemical Industry

基　　金：中国天然气股份公司华北油田分公司协作项目(HBYT-YJY-2015-JS)"中深层优质储层成因机制与主控因素研究"部分成果联合资助

摘　　要：廊固凹陷沙四上亚段是该区域重要的石油、天然气勘探领域,砂体分布广,分析其储层特征,对储层进行分类评价对进一步勘探开采具有重要意义。本文通过常规薄片分析、镜下铸体薄片观察、压汞测试分析、大量物性资料,结合研究区沉积构造背景,对研究区储层特征进行了研究及分类。研究结果认为,河西务构造带沙四上亚段岩石类型以岩屑长石砂岩为主,物性较差,多为低孔低渗储层。依据制定的储层分类评价标准,研究区目的层以Ⅲ、Ⅳ类储层为主,个别井所在的砂体储层物性较好。南部地区储层要优于北部地区,辫状河平原亚相中砂体储层物性要好于前缘亚相。The reservoir of Ess4 in Langgu Depressionis is an important oil and gas exploration region,widespread sand. It has a great significance for further exploration and exploitation to analyze its reservoir characteristics and evaluation. Based on the data of conventional thin section observation,cast thin microscopic observation,mercury injection test,geophysical property test,combining with structure situation,the author has studied and classified reservoir characteristics. The results suggests that the rock types of Ess4 of Hexiwu Structural Belt are mainly lithic arkose sandstone,the reservoir physical properties are poor,with low property and permeability. According to established reservoir classification evaluation criteria,target bed are mainly Ⅲ、Ⅳ.Individual wells where sand reservoir properties better. Southern reservoir is superior to the northern region reservoir,braided river plain subphase sand reservoir quality is better than the front subfacies.

关 键 词：储层特征 压汞分析 储层分级 河西务构造带 

分 类 号：P618.13[天文地球—矿床学]