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《影响安塞油田长6层堵水压裂效果因素探讨-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第27卷第4期石油化工高等学校学报Vo1.27No.42014年8月J()URNAIOFPETROCHEMICAIUIVERSIT1ESAug.2014文章编号:1006—396X(2014)040061-05影响安塞油田长6层堵水压裂效果因素探讨王玉功,刘镕菖。,李勇,杨博丽,王小文,唐冬珠,汪小宇。,王所良1,2(1.川庆钻探钻采工程技术研究院,陕西西安710018;2.低渗透油气田勘探开发国家工程实验室,陕西西安7100183.西南石油大学地球科学与技术学院,四川I成都610500;4.川庆钻
2、探工程有限公司长庆井下技术作业公司,陕西西安710018)摘要:从安塞油田长6层储层特点、开发现状及堵水压裂技术特点等方面,对影响安塞油田长6层堵水压裂效果的关键因素进行探讨。分析认为,油井储层见水特征、油层纵向层间非均质性、前期压裂改造状况都对堵水压裂效果产生深远影响,选择合适的堵水压裂层位是取得良好降液增产效果的前提和基础。另外,堵水、压裂两种措施间的相互影响也部分降低了最终的堵水和压裂施工效果,因此,选择合适的井层和优化堵水一压裂施工程序成为提高安塞油田长6层堵水压裂效果的技术关键。关键词:堵
3、水压裂;影响因素;选井选层;施工程序优化中图分类号:TE39文献标志码:Adoi:1O.3969/J.issn.1006—396X.2014.04.014DiscussiononInfluencingFactorsforPluggingandFracturinginCh6Reservoir.Ansai0ilfieldWangYugong~,LiuRongchang。,LiYong,YangBoli,WangXiaowen~,TangDongzhu.WangXiaoyu.WangSuoliang’。(
4、1
5、Technology&EngineeringResearchInstituteofChuanqingDrillingEngineeringCompany.Xi’anShaanxi710018,China;2.NationalEngineeringLaboratoryforExplorationandDevelopmentofLow-PermeabilityOil&GasFields,Xi’anShaanxi710018.China:3.SchoolofGeoscienceandTechnolog
6、y,SouthwestPetroleumUniversity,ChengduSi(’huan610500,China;4.ChangqingDownHoleOperationCompany.CNPCChuanqingDrillingEngineeringCompanyLimited,Xi’anShaanxi710018,China)Abstract:Keyfactorsinfluencingtheeffectofpluggingandfracturingwasdiscussed。inrespectt
7、OthecharacteristicsanddevelopmentstatusofCh6reservoirinAnsaioilfield,aswellasfeaturesofthepluggingandfracturingtechnology.Theresultsshowedthatwaterbreakthrough,verticalinterlayerheterogeneityandinitialfracturingtreatmentmaysignificantlyaffectthepluggin
8、gandfracturingperformance.So,appreciatehorizonforpluggingandfracturingwastheprerequisiteforeffectivelyreducingfluidleakageandenhancingrecovery.Theinteractionbetweenpluggingandfracturingmayalsopartiallydebasethetreatmenteffects.Therefore,selectionofprop
9、erwell/layerandoptimizationoftreatmentprocedurewereessentialforimprovingthepluggingandfracturingeffectsofCh6reservoir,Ansaioilfield.Keywords:Pluggingandfracturing;Influencingfactors;Well/layerselection;Optimizationoftreatmentprocedure目前
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