ISSN1008-9446CN13-1265/TE承德石油高等专科学校学报JournalofChengdePetroleumCollege第25卷第2期,2023年4月Vol.25,No.2,Apr.2023东北X油田P油层水驱油效率及影响因素分析朱晓斌1,赵孟孟1,李江飞2,韩建伟2,徐康泰2,冯学洋2(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)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。关键词:储层物性;聚类分析;驱替实验;水驱油效率中图分类号:TE357.6文献标志码:A文章编号:1008-9446(2023)02-0039-07Oil-waterDisplacementEfficiencyandInfluencingFactorsofPOilLayerinNortheastXOilfieldZHUXiao-bin1,ZHAOMeng-meng1,LIJiang-fei2,HANJian-wei2,XUKang-tai2,FENGXue-yang2(1.CNOOCSafetyTechnologyServiceCo.,Ltd.,Tianjin300457,China;2.HebeiPetroleumUniversityofTechnology,Chengde067000,Hebei,China)Abstract:ThePOilLayerofXOilfieldinNortheastChinaisafluvial-deltadepositioninthelowwaterstage,withfeaturesofstrongheterogeneity,lowporosityandlowpermeability.Afteryearsofwaterinjectiondevelopment,ithasenteredthestageofmediumandhighwatercut.Beingwashedforalongtime,themicroscopicporestructureofthereservoirhaschangedalot,theheterogeneityismoreseriousthanthatintheearlystageofdevelopment,andthedifficultyofmininghasgraduallyincreased.Onthebasisofcurrentoilfielddataandreservoircores,throughsampleclusteranalysisandcoredisplacementexperiments,thispaperstudiesthedistributionofreservoirphysicalproper-ties,theoil-waterdisplacementefficiencyanditsinfluencingfactors.Asaresult,thedevelopmentresearchersoftheoilfieldcangraspthedevelopmentofremainingoilreservesfromanoverallview,thestudyprovidesascientificbasisforsubsequentdevelopmentplandesigns,theadjustmentofwellpatterna...
