摘要
针对七个泉油田E13下段山前砂砾岩储层物性差、孔隙结构复杂,测井曲线平直,测井解释精度差,注淡水开发造成砂砾岩水淹层识别困难。以岩石物理实验为基础,结合核磁共振测井,深化主控因素分析,构建渗流指数评价储层有效性。根据砂砾岩生产曲线特征,分析水淹机理,建立基于储层渗透性的水淹层测井识别方法,有效提高砂砾岩水淹层测井解释精度,对射孔及油田综合治理提供指导。
In view of the poor physical properties and complex pore structure of piedmont glutenite reservoir in the lower part of E13 in Qigequan oilfield,logs are straight and log interpretation accuracy is poor,while the development of freshwater injection is more difficult to identify the glutenite water-flooded layer.Based on the combination of nuclear magnetic resonance logging,this study deepens the main control factors analysis and constructs the seepage index to evaluate the reservoir effectiveness.According to the characteristics of glutenite reservior production curve,the mechanism of water flooding is analyzed,and the log identification method of water-flooded layer based on reservoir permeability is established to effectively improve the interpretation accuracy of glutenite water-flooded layer,which provides guidance for perforation and oilfield comprehensive treatment.
作者
单沙沙
唐群英
倪诚
钟雨
赵莉
邓瑞
SHAN Shasha;TANG Qunying;NI Cheng;ZHONG Yu;ZHAO Li;DENG Rui(Applied Research Institute, China Petroleum Logging CO. LTD., Xi’an, Shaanxi 710077, China;Petrochina Qinghai Oilfield Company, Dunhuang, Gansu 816400, China;Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education, Wuhan, Hubei 430100, China)
出处
《测井技术》
CAS
2020年第6期606-611,共6页
Well Logging Technology
基金
湖北省教育厅科学技术研究计划重点项目“油田套管损坏综合预测方法研究”(D20191302)。
关键词
测井解释
砂砾岩
水淹机理
储层有效性
水淹层
七个泉油田
log interpretation
glutenite
water flooding mechnism
reservior effectiveness
water-flooded layer
Qigequan oilfield
