东北X油田P油层水驱油效率及影响因素分析  

Oil-water Displacement Efficiency and Influencing Factors of P Oil Layer in Northeast X Oilfield

作　　者：朱晓斌 赵孟孟 李江飞 韩建伟 徐康泰 冯学洋 ZHU Xiao-bin;ZHAO Meng-meng;LI Jiang-fei;HAN Jian-wei;XU Kang-tai;FENG Xue-yang(CNOOC Safety Technology Service Co.,Ltd.,Tianjin 300457,China;Hebei Petroleum University of Technology,Chengde 067000,Hebei,China)

机构地区：[1]中海油安全技术服务有限公司,天津300457 [2]河北石油职业技术大学,河北承德067000

出　　处：《承德石油高等专科学校学报》2023年第2期39-45,共7页Journal of Chengde Petroleum College

基　　金：承德和合众创空间创新创业项目(基于微波辐射破乳的老化油脱水装置):CGX2021KMP0039。

摘　　要：东北X油田P油层是低水位期的河流三角洲沉积,非均质性强,属于低孔低渗油层。经多年注水开发,目前已进入中高含水期开发阶段,经过长期水洗,储层微观孔隙结构发生了很大变化,非均质性较开发初期更加严重,开采难度逐渐增加。利用油田现有资料和储层岩心,通过样本聚类分析及岩心驱替实验,对储层物性特征分布、水驱油效率及其影响因素分析进行了研究,让油田的开发研究人员能够从整体的角度出发,把握该油层可动剩余油的储备情况,为后续开发方案设计、井网调整和部署加密井提供了科学依据。The P Oil Layer of X Oilfield in Northeast China is a fluvial-delta deposition in the low water stage,with features of strong heterogeneity,low porosity and low permeability.After years of water injection development,it has entered the stage of medium and high water cut.Being washed for a long time,the microscopic pore structure of the reservoir has changed a lot,the heterogeneity is more serious than that in the early stage of development,and the difficulty of mining has gradually increased.On the basis of current oilfield data and reservoir cores,through sample cluster analysis and core displacement experiments,this paper studies the distribution of reservoir physical properties,the oil-water displacement efficiency and its influencing factors.As a result,the development researchers of the oil field can grasp the development of remaining oil reserves from an overall view,the study provides a scientific basis for subsequent development plan designs,the adjustment of well pattern and deployment of infill wells.

关 键 词：储层物性 聚类分析 驱替实验 水驱油效率 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]