摘要
中国中东部主要油区油田均已进入高含水阶段,有大约40%～60%的储量需要在该阶段采出。精细油藏描述是油田有效开发的最基础工作,因此高含水油田精细油藏描述对于油田生产实践和提升规律性认识都具有特别重要的意义。基于详细的中外文文献调研,结合典型油田实践经验总结,系统介绍了目前高含水油田精细油藏描述研究的现状和研究中存在的5个方面主要问题。认为地层精细划分与对比、储层非均质性研究、开发过程中储层变化规律研究、多信息综合剩余油表征技术和高含水油藏三次采油相关研究等属于高含水油田精细油藏描述中的5个关键问题,并明确提出了目前应用效果较好的几种新技术和方法。指出高含水油田精细油藏描述研究发展趋势集中在断裂体系精细解释、储层构型精细表征技术、测井水淹层解释、优势渗流通道研究和多点地质统计学地质建模技术等5个方向。
Major oilfields in central-eastern China have entered into the high water-cut development stage during which about 40%-60%reserves need to be recovered.Fine description of reservoir is the most essential work for effective oilfield development;at the same time the fine description of high water-cut reservoir is of special significance for boosting production practice in oilfields and deepening understanding of production performance.Based on the detailed study on related documents both in Chinese and in foreign languages,in combination with practical experiences in typical oilfield production,we systematically introduced the status quo of the research on fine description of reservoir in high water-cut oilfield,and summarized the five main problems existing in the present research,including fine division and correlation of stratigraphy,reservoir heterogeneity,patterns of reservoir variation in the process of oilfield development,comprehensive remaining oil characterization with integration of various data,and tertiary oil recovery in high water-cut oilfields.Subsequently,several new techniques and methods with better application results now were pointed out.In addition,the focuses of present research were summarized as follows:①fine interpretation of fracture system;②fine characterization of reservoir architecture;③logging interpretation for water-flooded layers;④identification of preferential seepage channels;⑤multipoint geostatistical modeling.
作者
陈欢庆
石成方
胡海燕
吴洪彪
曹晨
Chen Huanqing;Shi Chengfang;Hu Haiyan;Wu Hongbiao;Cao chen(Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;PetroChina Exploration and Development Company Ltd.,Beijing 100007,China)
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
2018年第6期1311-1322,共12页
Oil & Gas Geology
基金
国家科技重大专项(2011ZX05016-006)
中国石油天然气股份有限公司勘探与生产分公司项目(2018-40217-000001)
关键词
储层非均质性
断裂体系
精细油藏描述
剩余油
高含水油田
reservoir heterogeneity
fracture system
fine description of reservoir
remaining oil
high water-cut oilfield
