大庆石油地质与开发2025，Vol.44Issue(5)：12-20,9.DOI:10.19597/J.ISSN.1000-3754.202505039
"双特高"老油田新一代精细油藏描述实践
Practice of new-generation fine reservoir characterization for"double ultra-high"mature fields:A case study of sandstone reservoirs in Daqing Placanticline oilfield
摘要
Abstract
In"double ultra-high"development stage,Daqing Placanticline oilfield faces challenges of highly scat-tered remaining oil and more difficulty in potential tapping,and traditional fine reservoir characterization methods cannot meet the demand of precise development.Critical challenges are deeply analyzed including inefficient param-eter interpretation,insufficient identification accuracy of low order faults,difficulty in identifying single channel boundaries in composite sandbodies and low accuracy of remaining oil simulation,caused by multi-source heteroge-neous logging data appeared in logging interpretation,structural description,reservoir characterization and remain-ing oil characterization.Fine reservoir characterization scheme focused on big data,AI algorithms and multi-disci-plinary integration is established by employing techniques of integrated logging parameters completion,well-seis-mic integrated structural modeling,fine characterization of composite sandbodies architecture and high-accuracy numerical simulation,achieving fine interpretation of complete logging parameters,precise characterization of faults with throws of 3～10 m,identification of single channel boundaries in composite sandbodies and precise char-acterization of remaining oil at 10-meter scale,and realizing accurate characterization of geobodies in current data and technical conditions.Field applications demonstrate that the new-generation method increases break points combination rate to 95.5％,prediction coincidence rate of reservoirs thicker than 2 m exceeds 85％,and successful-ly guides development well placement strategy from"avoiding faults"to"targeting near faults".Over 500 high-an-gle deviated wells are deployed at fault edges,and achieve staged incremental oil production of nearly 400×104 t,significantly enhancing potential tapping efficiency of remaining oil.The research provides technical support for effi-cient development of mature oilfields in"double ultra-high"stage and promotes advancement of reservoir character-ization towards intelligence and quantification.关键词
精细油藏描述/测井参数解释/低序级断层识别/复合砂体构型/剩余油表征与挖潜Key words
fine reservoir characterization/logging parameter interpretation/low-order fault identification/com-posite sandbodies architecture/remaining oil characterization and potential tapping分类
能源科技引用本文复制引用
白军辉,杨会东,蔡东梅,付宪弟.."双特高"老油田新一代精细油藏描述实践[J].大庆石油地质与开发,2025,44(5):12-20,9.基金项目
中国石油天然气股份有限公司重大科技专项"中高渗油田特高含水期大幅度提高采收率技术研究"(2023ZZ22). （2023ZZ22）
