辽河油田-难采储量开采技术发展状况及应用.doc

辽河油区难采储量开采技术发展状况及应用
王旭贾海燕
（辽河石油勘探局工程技术研究院辽宁盘锦124010）
摘要：随着辽河油区勘探开发程度的不断加深，难采、难动用区块的开发已成为油田稳产中不容忽视的问题，实际情况表明，这些难采区块分别存在着高凝、低渗、出砂、海上稠油开采等技术困难，具有低产能、投资高、风险大的特点。经过多年的持续技术攻关和实践，辽河油区目前已经陆续开发了侧钻井、水平井、分支井等特殊工艺井钻完井技术及配套技术，广泛应用于超稠油油藏、低渗透油藏、薄层稠油油藏开发，极大提高了难采储量动用程度，降低吨油生产成本，取得良好的效果。此外，在油井增油技术方面也取得突破，防砂、高温调剖、找堵水、气体采油技术等都进一步完善和应用。本文重点介绍了特殊工艺井技术和油井增油技术在难采油藏开发中的发展状况及应用，希望对其它油区类似油藏的开发起到借鉴作用。
关键词：辽河油区；难采储量；特殊工艺井；油井增产技术；应用
中图分类号：TE353文献标识码：A
DevelopmentsandApplicationsofOilProductionTechnologyforDifficult-to-ProduceReserveinLiaoheOilfield
WangXu,JiaHaiyan
(EngineeringTechnicalResearchInstituteofLiaohePetroleumExplorationBureau,Liaoning,Panjin,124010,China)
Abstract:ThedevelopmentofLiaoheoilfieldhascomeintomid-lateperiod,troublesofsustainningproductionappeargraduallyobvious.Forthisreason,thestudiesconcerningtheeffectiveandeconomicoilproductiontechnologyfordifficult-to-producereservearegradualemphasized.Ascomparedwiththeconventionalreserve,difficult-to-producereservehashighpour-point,lowpermeability,sandinflow,offshoreheavyoil,etc,soitsproductionalwaysleadstolowyield,highcost,highrisk.Inresentyears,complicatedstructuralwells,includingside-trackingwells,horizontalwells,branchedwells,etc.,havebeenstudiedanddevelopedinLiaoheoilfield.Throughtheapplicationofthesecomplicatedstructuralwellsinsuperheavyoilreservoir,lowpermeabilityreservoir,thinheavyreservoir,averygoodresultwasobtained,improvingoilrecoveryeffectively,reducingrunningcostperton.Inaddition,somestimulationtreatmenttechnologieshavealsobeendevelopedandadopted,suchassandcontrol,hightemperatureinjectionprofilemodification,waterfindingandblockoff,oilproductionbyusinggases.Inthispaper,thedevelopmentsandapplicationsofthecomplicatedstructuralwellsandthestimulationtreatmenttechnologiesfordifficult-to-producereservearepresented,andtheseresearchresultswillhavesomeeffectsontheproductionofothersimilardifficult-to-producereserve.
Keywords:Liaoheoilfield;difficult-to-producereserve;complicatedstructuralwells;stimulationtreatmenttechnologies;applica