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稠油区块多元驱油开发模式研究与试验付强(中国石油天然气集团公司辽河油田分公司,辽宁盘锦124000)摘要:C13块为普通稠油块状油藏,历经多年注水开发,受出砂、井况等问题影响,开发效果较差,整体处于“双低”开发状态。开展精细地质体刻画,重新落实区块构造及剩余油分布情况,为后续的开发调整提供了物质基础。根据南北区域不同的地质条件,分区分方式制定调整策略,北部油品性质较差,重构井网后按照蒸汽吞吐配合注水补能的开发方式进行调整;南部区域立足注水开发,利用深部调驱改善纵向动用状况。试验井组增油效果显著,下步可扩大实施规模。调整后,预计区块最终采收率可达到19.1%,较标定采收率提高6.1%,开发效果得到有效改善,为同类型油藏提供有力借鉴。关键词:地质体刻画;地层格架;剩余油分布;蒸汽吞吐;深部调驱中图分类号:TE357文献标志码:B文章编号:1008-9446(2023)02-0023-06MultipleDisplacementDevelopmentModeinThickenedOilBlockFUQiang(CNPCLiaoheOilfieldBranch,PanJin124000,Liaoning,China)Abstract:BlockC13isanordinarythickenedoilblockreservoir,thedevelopmenteffectispoorduetoproblemssuchassandproductionandwellconditionsafteryearsofwaterinjectiondevelopment,theoveralldevelopmentisinthe“doublelow”state.Toprovideamaterialbasisforsubsequentde-velopmentadjustment,finegeologicalbodycharacterizationiscarriedouttore-implementtheblockstructureandremainingoildistribution.Accordingtodifferentgeologicalconditionsofnorthandsouthregions,adjustmentstrategiesareformedindifferentways.Inthenorthblockwithpooroilquality,steamsoakisusedwithwaterinjectiontosupplementenergy;whiledeepprofilecontrolisusedinthesouthparttoimproveverticalutilizationbasedonwaterinjectiondevelopment.Theeffectofoilincreaseintestwellgroupisremarkable,andthescaleofimplementationcanbeexpandedinfollowingdevelopment.Aftertheadjustment,itisestimatedthatthefinalrecoveryfactoroftheblockcanreach19.1%,whichis6.1%higherthancalibratedrecoveryfactor.Thedevelopmenteffectiseffectivelyimproved,providinganeffectivereferenceforsimilarreservoirs.Keywords:geologicalbodycharacte...
