摘要
龙西地区扶余油层物性致密,开发难度较大,储层宏观特征和微观特征的研究相对薄弱,缺少储层综合评价的方法。本文在储层沉积微相砂体类型和微观参数系统研究的基础上,建立了储层单因素评价标准,并进行了有利区预测,结果表明:(1)储层宏观沉积微相中砂体主要是分流河道砂体、决口扇和席状砂;(2)渗透率小于1mD的储层喉道细小,开发较困难,而渗透率大于5mD的储层,大于1μm的喉道起主导作用,开发较容易;(3)采用GIS辅助储层综合评价法建立了储层单因素评价标准,预测了4类有利区,Ⅲ类区和Ⅳ类区风险较大,Ⅰ、Ⅱ类区块是相对有利的区块。
The physical properties of the Fuyu oil layer in the Longxi area are dense,making development difficult.The research on the macroscopic and microscopic characteristics of the reservoir is relatively weak,and there is a lack of comprehensive evaluation methods for the reservoir.On the basis of systematic research on the types and microscopic parameters of sedimentary microfacies sand bodies in reservoirs,this article establishes a single factor evaluation standard for reservoirs and predicts favorable areas.The results show that:(1)The sand bodies in the macroscopic sedimentary microfacies of reservoirs are mainly distributary channel sand bodies,crevasse fans,and sheet shaped sand bodies;(2)Reservoirs with permeability less than 1 mD have small throats and are difficult to develop,while reservoirs with permeability greater than 5 mD have a throat size greater than 1μm.The throat of m plays a leading role and is easier to develop;(3)The GIS assisted reservoir comprehensive evaluation method was used to establish a single factor evaluation standard for reservoirs,and four types of favorable areas were predicted.ClassⅢandⅣareas have higher risks,and ClassⅠandⅡblocks are relatively favorable blocks.
作者
王芳
庞磊
孙同文
Wang Fang;Pang Lei;Sun Tongwen(College of Petroleum Engineering,Guangdong University of Petrochemical Technology,Guangdong,525000)
出处
《当代化工研究》
CAS
2023年第19期137-139,共3页
Modern Chemical Research
基金
广东石油化工学院2018年校级科研基金项目“断裂交汇部位垂向优势输导油气条件研究”(项目编号:2018rc02)。
关键词
沉积微相
微观特征
储层综合评价
扶余油层
龙西地区
sedimentary microfacies
micro characteristics
comprehensive evaluation of reservoir
fuyu oil layer
Longxi area
