广东石油化工学院学报2025，Vol.35Issue(3)：5-9,5.
海上复杂断块油藏连通性动态评价
The Connectivity of Complex Fractured Reservoirs in Offshore Areas at Multiple Scales:A Case Study from W Oilfield,Beibu Gulf Basin
张华 1张冲 1唐慧敏 1周海韵 1杨瑞1
作者信息
- 1. 中海石油(中国)有限公司 海南分公司,海南 海口 571000
- 折叠
摘要
Abstract
The W oilfield is located in the Beibu Gulf basin,and it is a structural and lithological trap reservoir with rapidly changing and highly heterogeneous sand bodies.Production issues such as unclear effectiveness of water injection development blocks,low production rates of producing wells,and poor development outcomes have arisen.To address this issue,we started with a combination of well logging and seismic data to conduct a detailed characterization of the sand bodies,fully utilizing production dynamic data to comprehensively judge the reservoir connectivity,and clarified the injector-producer relationships and connections between them.The results show that Wells W6H and W8 are located in different periods of river channels,with separate and independent sand bodies on the east and west sides,belonging to different reservoirs.The possibility of separation or lateral superposition of the two sets of sand bodies in the high area of W6H Well is greater.The connectivity between the producing Well W6H and the injecting Well W1 is poor.After stratification,the L oil group is divided into 3 sublayers vertically.Well W6H produces from the 3rd sublayer of the L oil group,while Well W1 is located in the 3rd and 2nd sublayers of the L oil group.It clarifies the evaluation of small layer network adaptability and the description of remaining oil distribution,and puts forward suggestions for further exploration,providing effective guidance for the accurate evaluation of inter-well connectivity and oilfield development planning in this complex type of reservoir.关键词
井间连通性/非均质性/注采关系/北部湾盆地W油田Key words
inter-well connectivity/heterogeneity/injection-production relationship/W oilfield of Bei Gulf basin分类
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张华,张冲,唐慧敏,周海韵,杨瑞..海上复杂断块油藏连通性动态评价[J].广东石油化工学院学报,2025,35(3):5-9,5.
