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油田注水理论与技术油田注水理论与技术西南石油学院二OO五八月西南石油学院二OO五八月李海涛Tel:028-88116727Email:swpi@sina.com李海涛Tel:028-88116727Email:swpi@sina.comWaterinjectiontechnologyWaterinjectiontechnologySouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao油田注水理论与技术油田注水理论与技术一、概述二、油田注/采水的管理三、配伍性注水及设计方法四、油田注水工艺技术五、油田注水腐蚀与防腐技术六、注水结垢与防治技术七、注入水剖面控制技术八、相关软件介绍一、概述二、油田注/采水的管理三、配伍性注水及设计方法四、油田注水工艺技术五、油田注水腐蚀与防腐技术六、注水结垢与防治技术七、注入水剖面控制技术八、相关软件介绍SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao第一部分、概述油田注水管理:机遇与挑战InjectionWaterManagementOpportunitiesandChallengesSouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao第一部分、概述1.油田注水的目的2.基本概念3.注水现状及问题4.机遇与挑战z如何完成配注、提高采收率?z注水成本控制z注水管理决策直接影响项目经济性5.注水裂缝模拟研究6.结论1.油田注水的目的2.基本概念3.注水现状及问题4.机遇与挑战z如何完成配注、提高采收率?z注水成本控制z注水管理决策直接影响项目经济性5.注水裂缝模拟研究6.结论SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao第一部分、概述1、油田注水主要目的(Objectives)z注水提高采收率Waterfloodingtorecoveroil注污水:Producedwaterreinjection注淡水:Freshwatersources(江-湖-河-浅层地下水)注海水:SeaWaterz注水保持地层压力Pressuremaintenancez产出水处理(环保要求)ProducedwaterdisposalRegardlessofthesource,waterhandlingandinjectionoftenisthesinglebiggestoperatingcostforproducers.SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao注水采收率=井网效率∗垂向波及系数∗微观驱油效率2、基本概念Arealsweepefficiencyisameasureofhowmuchofthereservoirhasbeenincontactwiththefloodwaterinanarealplane.与井网密切相关SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitaoVerticalsweepefficiencyisameasureoftheuniformityofwaterinvasioninaverticalcrosssection.垂向波及系数聚合物驱、调剖、精细分层注水SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitaoMicroscopicdisplacementefficiencyisameasureofhoweasilytheoilcanberemovedfromtherockpores.微观驱油效率化学驱(微乳液、多元复合驱)可以改善岩石的润湿性、降低系统界面张力、提高洗油效率SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao注水开发是最重要的油田开发方式。注水开发是最重要的油田开发方式。注水是一种二次采油方法。通过注水井向地层注水,将地下原油驱替到生产井,增加原油的采收率。注水是一种二次采油方法。通过注水井向地层注水,将地下原油驱替到生产井,增加原油的采收率。注水保持压力是一项工艺技术。把水注入油藏,补充油藏原有的天然能量,改善油田的生产特性。注水保持压力是一项工艺技术。把水注入油藏,补充油藏原有的天然能量,改善油田的生产特性。注好水(质)注够水(量)和有效注水是注水工程的基本任务。质:配伍性水质评价、水处理与配套地面建设、质量保证体系(腐蚀、结垢、配伍)等等量:以质为基础、配套增注措施注好水(质)注够水(量)和有效注水是注水工程的基本任务。质:配伍性水质评价、水处理与配套地面建设、质量保证体系(腐蚀、结垢、配伍)等等量:以质为基础、配套增注措施注水的重要性注水的重要性SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao全世界估计注水量大约300百万桶/天注水年费用超过500亿美元($50billion)配伍性要求、产出水环保要求污水回注产出水/产油比例逐年增加全世界估计注水量大约300百万桶/天注水年费用超过500亿美元($50billion)配伍性要求、产出水环保要求污水回注产出水/产油比例逐年增加3、注水现状及问题3、注水现状及问题SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao据统计目前油公司平均每产1桶原油至少产3桶水,即全世界平均日产水约21亿桶,日产原油约为7.5亿桶。水处理费用也越来越高,平均每桶水处理费用大约在5-50美分,每年将花费400亿美元处理这些的产出水。如按我国原油年产1.5亿吨原油,至少注入11亿吨水,可见油田注水任务十分艰巨,水处理费用也十分昂贵,按注水成本平均每吨3.5元计,每年处理费用将达到38.5亿元。如将注水成本降低0.5元,年处理费将减少5.5亿元,效益显著。据统计目前油公司平均每产1桶原油至少产3桶水,即全世界平均日产水约21亿桶,日产原油约为7.5亿桶。水处理费用也越来越高,平均每桶水处理费用大约在5-50美分,每年将花费400亿美元处理这些的产出水。如按我国原油年产1.5亿吨原油,至少注入11亿吨水,可见油田注水任务十分艰巨,水处理费用也十分昂贵,按注水成本平均每吨3.5元计,每年处理费用将达到38.5亿元。如将注水成本降低0.5元,年处理费将减少5.5亿元,效益显著。3、注水现状及问题3、注水现状及问题如何完成配注量、提高采收率?如何控制注水成本?如何完成配注量、提高采收率?如何控制注水成本?SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao4、机遇与挑战SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao注水设计(水源、水质、水处理、管网及开泵方案优化等)配套工艺技术(分注、调剖、堵水、增注等)注水设计(水源、水质、水处理、管网及开泵方案优化等)配套工艺技术(分注、调剖、堵水、增注等)4.1如何完成配注、提高采收率?4.1如何完成配注、提高采收率?zGetthewaterwheretheoilis!!zDeterminewaterrequirementsasaccuratelyasdatapermitszSurveyallpossiblewatersourceszDevelopselectedsourceaseconomicallyaspossiblezLargestdailydemandoccursduringfill-upzMaintainhighinjectionrateduringfill-up(1to2B/D/acre-footisdesirable)zGetthewaterwheretheoilis!!zDeterminewaterrequirementsasaccuratelyasdatapermitszSurveyallpossiblewatersourceszDevelopselectedsourceaseconomicallyaspossiblezLargestdailydemandoccursduringfill-upzMaintainhighinjectionrateduringfill-up(1to2B/D/acre-footisdesirable)SouthwestPetroleumInstitute。lihaitaoSouthwestPetroleumInstituteSouthwestPetroleumInstituteSouthwestPetroleumInstitute。。。lihaitaolihaitaolihaitao4.1如何完成配注量、提高采收率?4.1如何完成配注量、提高采收率?zAfterfill-uprule-of-thumbinjectionrateisabout1B/Dandnotlessthan½B/D/acre-footzPorevolume(PV)methodprovidesgoodestimateforultimatewate
本文标题:油田注水理论与技术
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