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ID:33805129
大小:2.31 MB
页数:47页
时间:2019-02-28
《松辽盆地萨尔图油田二三类油层水驱挖潜研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、浙江大学理学院硕士学位论文松辽盆地萨尔图油田二三类油层水驱挖潜研究姓名:周恒博申请学位级别:硕士专业:地质学指导教师:肖安成;邓庆军20090815⑦浙江大学硕上学位论文中文摘要论文针对二、三类油层在三次采油井网、井距条件下水驱综合挖潜方法进行研究。在注水方面,采取分层注水、细分调整、周期注水、深调剖和个性化调整等注水调整方法;在采油方面,挖潜措施采用压裂、堵压结合、换泵、水力割缝措施工艺,控水措施采用机械堵水、井下压电开关堵水、长胶筒堵水、化学堵水工艺。以应用较成熟的、配套的水驱调整方法及配套的控水、挖潜方法为基础,大胆尝试了前沿措施技术,实现了通过油
2、水井措施调整改善水驱开发效果目的。取得以下创新点:一是采用系统分析法评价了试验前水驱开发效果;二是从射开高水淹厚度比例、顶部挖潜、与老水井距离、注采高渗透通道、固井质量和高采油速度6个方面评价二、三类油层水驱开发影响因素;三是针对二、三类油层小井距两套井网组合开发模式,研究制定了综合措施挖潜方法和匹配调整方法。通过水驱综合调整和水驱挖潜措施的实施,以及注水、产液结构的合理调整,在高采油速度下(3.5%),整体开发效果较好。含水上升率控制在0.5%以内,综合递减率控制在3%以内,单井措施增油4.2t,不发生套损。关键词:二、三类油层剩余油水驱挖潜措施⑦浙江
3、大学硕士学位论文AbstractStudyoncombinedpotentialtappingmethodsbywaterflooding、撕tlltertiaryrecoverywellpatternandwellspacinginthepoorandthinlayersisconductedinthepaper.Inwaterinjection,somemethodsincludingseparatedlayerinjection,subdividedadjustment,cyclicinjection,in-depthprofilecontrola
4、ndindividualizedadjustmentarecovered.Inproduction,somepotentialtapingtechnologiesincludingfracturing,integratedpluggingandfracturing,pumpreplacement,hydraulicfissurecuttingandsomewatercontroltechnologiesincludingmechanicalwaterplugging,downholepressureandelectricityswitchingplugg
5、ing,longrubberbarrelwaterpluggingandchemicalwaterpluggingareemployed.Basedonmaturedandmatchingwaterfloodingmethods,matchingwatercontrolmethodandpotentialtappingmethod,somepioneeringtechnologiesareputontrialandgotgoodresultsthroughadjustmentmethodsininjectionandproduction.Somenewp
6、rogressesareachievedasfollows:firstly,systematicalanalysismethodisappliedtoappraisewaterfloodingperformancebeforetest;secondly,throughstudyoftheperforatedhighwaterfloodedthickness,potentialtappingofthetoplayer,distancetotheoriginalinjectors,highpermeabilitychannelbetweeninjectors
7、andproducers,cementationquality,highproductionrate,thefactorsinfluencingwaterfloodinginthepoorandthinlayersaleappraised;thirdly,accordingtocombineddevelopmentmodeof2setswellpatternswitllsmallwellspacinginthepoorandthinreservoirs,comprehensivepotentialtappingmethodandmatchingadjus
8、tmentmethodaledeveloped.Throughtheapplic
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