摘要
黄沙坨油田是辽河盆地火山岩储层中首个获得千万吨级规模的油田,火山岩具有储层岩性复杂、变化快,油藏不确定等因素。为厘清该油田剩余油分布规律,针对区块内火山岩双重介质油藏,建立了三维裂缝性双重介质模型,预测了粗面岩储层空间展布特征,精细刻画了油藏地质体,并采用油藏数值模拟方法开展了剩余油分布研究。研究结果表明,含油厚度与产量呈现正相关关系,裂缝发育情况与剩余油饱和度则呈负相关关系;基于三维模型计算的研究区储量,与实际地质储量相比,误差仅为-3.13%。
Huangshatuo Oilfield is the first oilfield in the Liaohe Basin to achieve a scale of tens of millions of tons in volcanic rock reservoirs,volcanic rocks have complex reservoir lithology,rapid changes and uncertain oil reservoirs.To clarify the distribution pattern of remaining oil in the oilfield,the article focuses on the dual medium reservoir of volcanic rocks within the block,established a three-dimensional fractured dual medium model,predicted the spatial distribution characteristics of the coarse rock reservoir,finely characterized the geological body of the reservoir and a comprehensive study on the distribution of remaining oil was conducted using reservoir numerical simulation methods.The research results indicate that the thickness of oil content is positively correlated with production,while the development of fractures is negatively correlated with remaining oil saturation,compared with the actual geological reserves,the error of the reserve calculated based on the 3D model in the work area is only-3.13%.
作者
蔺佳
胡少兵
万吉庆
周淼
李树丽
LIN Jia;HU Shaobing;WAN Jiqing;ZHOU Miao;LI Shuli(Liaohe Branch,CNLC,Panjin 124010,Liaoning;College of Geophysics and Petroleum Resources,Yangtzeu University,Wuhan 430100,Hubei)
出处
《长江大学学报(自然科学版)》
2025年第5期48-57,共10页
Journal of Yangtze University(Natural Science Edition)
基金
国家自然科学基金重点项目“水力压裂时域电磁监测方法研究与综合应用”(42030805)。
关键词
火山岩
双重介质
数值模拟
剩余油
volcanic
dual-medium
numerical simulation
remaining oil
