苏1潜山气藏承担了繁重的北京冬季应急供气任务,无论是单井的采气强度还是气藏 整体的采气速度在整个冬季期间都达到了极限值,加上采出程度大幅提高,直接导致了气 藏底水活动加剧,气藏的稳产形势面临严峻挑战。在此形势下提出了对气藏实施排水采气 工艺措施,以求延长气藏稳产时间,改善气藏开发效果。本文以研究苏1气藏生产动态与 开发特征,分析气井的出水类型以及评价气藏生产能力,采用多种方法确定地质储量为基 础,以气井流入动态和气井井筒流出动态的研究和国内外七种成熟的排水采气工艺技术的 选井原则、适用条件和经济适用性为依托,借鉴国内外各类气藏开发中的成功经验及教训, 特别是对底水气藏的底水规模、活动规律,及其对整个开采过程、天然气最终采收率的影 响机理进行了深入研究,取得了切合实际的可供操作的成果,成果的应用将对加速气田 管理的科学化、正规化,延长气藏的稳产期、提高气藏最终采收率具有明确的指导意义, 不仅可以提高本气藏的经济效益,而且还为我国大量类似气藏的开发提供宝贵的经验,社 会效益显著。 主题词气藏底水排水采气开发效果Abstr8Ct BuriedhillSu1gasreservoirwasresPonsibleforsuPPlyinggasforBeijinginwinteLThe gasProduetivity,nomatterofsinglewell,oroffield,reaehedutmostvalued硕ngthePeriodof whole初nter.FurthermorethereeoveryPereentwasimProvedinalargeextent.Thebottom wateringasreservoirwasdrastieall),aetive.TheProductionofgasreservoir认,asdiffieulttobe stablebeeauseofallabove.InthiseonditiontheteehnicalmeasuretoProdueegasbydraining water15PutforwardinordertoextendthestableProduetionPeriodandimProvetheProduetion resultforthegasreservoir.TheProduetionPerformaneeandProfilearestudied.Thedraining watertyPesofgaswellsareanalyzedandgasProduetivity15evaluated.Thegeologyreserves15 determinedbymanykindsofmethods.It15referredtothestudyofinfiowandoutflow Performaneeofgaswell,andwellselectionPrineiPle,adaptiveeonditionandeeonomieofseven advaneedtoProducegasbydrainingwaterteehnologiesinandabroad.Incorporatingthe sueeessfulexPerieneeandlessonsindeveloPmenthistonformanykindsofgasreservoirsinand abroad,it15furtherstudiedtobottomwaterseale,movementregulationofbottom一watergas reservoir,WholeProduetionProcess,theeffectmeehanismforultimategasreeovery.Thesuitable result15reaehedandeasyforoPeration.TheaPPlicationoftheresult15signifieantfor aceeleratingseientifieandnormalizingmanagementofgasreservoir,extendingstableProduetion Period,imProvingultimatereeoveryofgasreservoir.ThestudyeannotonlyimProvethe eeonomiebenefitofthegasreservoir,butalsocansuPPlyvaluableexPerieneeforthe develoPmentofsimilargasreserVoirs. Keywords:gasreservoir,bottom一water,toProdueegasbydrainingwater,develoPmentresult 夕目录 摘要...........、.....................................,..............;,........,...,..........................I AbstraCt........,....................................................................................................................,.n 1绪论、..........................、..............................................................................................1 1 . 1立论依据及研究的目的和意义................................................................................1 1.2国内外研究现状..............................................................··...··.··································1 1 . 3研究的目标、技术路线,..................................................,····,·········,···················2 14太文所完成的工作..........................,........................···..······································2 2地质特征简介及生产动态分析...............................,....................................................4 2 . 1主要地质特征........................................................................·......······.·····················,一4 2 . 2主要开采特征.,.....................................................................·....··························6 2.3苏1潜山在目前开发中存在的主要问题及潜力分析..........................................巧 2 . 4实施排水采气的可行性分析..............................................,...,...............,…20 3排水采气工艺适应性评价及理论计算............................................................................24 3 . 1排水采气配套工艺...,.................................,...........·····································24 3 . 2排水采气的理论计算,.....,.................................···..···········,·························27 4开发调整方案指标预测............................................,........··..·····································47 4.1方案编制原则......,...............,.....................................................·.....············47 4.2方案编制思路.................,.........................................,二,二,.......····47 4.3排水采气地质方案设计..........................................................................................47 4.4排水采气工艺设计.....................................,..............·.....·································一53 5投资估算和经济效益评价.............................................,....·...···································一57 5.1投资估算,...........................................................,..…,.,......................,....57 5.2资金筹措......................................................,....................................................,59 5.3依据和基础数据..................................,....................,二,.…,…,..…......,.59 5.4成本和费用估算..............................................................,...................···.··········60 5.5财务分析...............................................................,....................,.................61 5 , 7经济评价结论........................................................................................,...........63 6结论与建议.....,.............,........................................................................................65 6 . 1结论................,...............................................................,.............................65 6 . 2建议................................................................................,二,....,..…,…,.,...65 致谢…,...................................................................................................................................66