深水浊积砂岩油田开发指标预测新方法:以尼日尔三角洲盆地Akpo油田为例  

A New Prediction Method for Dynamic Law in Deep-water Turbidite Oilfields: A Case Study of Akpo Oilfield in Niger Delta Basin

作　　者：康博韬 杨莉 张迎春 杨宝泉 苑志旺 陈筱 顾文欢 KANG Bo-tao;YANG Li;ZHANG Ying-chun;YANG Bao-quan;YUAN Zhi-wang;CHEN Xiao;GU Wen-huan(CNOOC Research Institute Co., Ltd., Beijing 100028, China)

机构地区：[1]中海油研究总院有限责任公司

出　　处：《科学技术与工程》2019年第35期153-159,共7页Science Technology and Engineering

基　　金：国家科技重大专项(2011ZX05030-005)资助

摘　　要：深水浊积砂岩油田开发成本高,调整空间小,风险及不确定性大,开发指标预测对于深水油田的开发决策至关重要。以西非尼日尔三角洲盆地Akpo油田为研究对象,利用该油田丰富的地震、地质及生产动态资料,综合考虑沉积相、砂体叠置关系、储层连通程度及储层非均质性等因素的影响对该油田生产井展开分类研究,结合油藏工程理论建立考虑储层因素的生产井含水上升及产量递减规律定量预测方法。结果表明:①深水浊积砂岩油田储层构型复杂,生产井动态规律差异明显,储层特征是影响生产动态规律的关键因素;②所建立的方法首次将深水浊积油田储层研究与生产动态规律相结合,预测精度高,现场适用性强;③研究思路与工作流程对其他油田具有很好的指导意义,为海外深水油田开发提供技术支持。With high development cost and limited adjusting spatial,deep-water turbidite oilfield has lots of risk and uncertainty,hence the accurate prediction of dynamic changing law is critical for the decision-making during production.Taking Akpo oilfield in the Niger delta basin of West Africa as the research object,according to seismic and gelogic information and production data,the classification patterns of producers based on the reservoir characteristics is formed by comprehensively considering sedimentary facies,reservoir connectivity and reservoir heterogeneity.And a new prediction method for water changing law is established through the combination of reservoir engineering and dynamic analysis.Combined with the formula of relative permeability curve,the quantitative predication method of production for different kinds of producers is formed.The results show that:①As the reservoir configuration is very complicated,production performance of deep-water turbidite standstone oilfields is affected greatly by geological factors;②The established prediction method which firstly combined with the complex reservoir characteristics is proved to be highly accurate;③The method can be directly applied to the evaluation of production and reserves in deep-water turbidite oilfields and is generally applicable to deep-water turbidite oilfields.

关 键 词：深水浊积 砂体叠置 储层连通性 含水上升 产量预测 

分 类 号：TE331[石油与天然气工程—油气田开发工程]