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时间:2020-03-26
《南二、三区高台子油水同层潜力及挖潜界限研究.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44卷第4期当代化工Vo1.44.No.42015年4月ContemporaryChemicalIndustryApri],2015南二、三区高台子油水同层潜力及挖潜界限研究刘言,王文广(东北石油大学地球科学学院,黑龙江大庆163000)摘要:利用岩心、录井、测井、试油等动、静态地质资料,在精细地质认识的基础上,对高台子油层油水同层发育及分布特征、油水同层的动用状况及挖潜潜力进行了研究,并利用找水、试油、碳氧比能谱测井等资料分析成果对高台子油水同层的补孔界限进行了界定,研究得出:油水界面由北向南呈“n”变化趋势,由西向东呈“u”型变化趋势;油水同层部
2、分层段已经动用,油水同层动用程度比纯油层差;油水界面储量纵向上主要分布在高I组和高ⅡI组,油水同层含水低于全井含水;剩余油类型主要以注采不完善型为主,需要通过完善注采关系来进一步提高油水同层的动用程度;确定了现阶段可以对油水同层补开的不同比例及挖潜深度界限,确保油水同层潜力得到充分动用。关键词:高台子油层;油水同层;挖潜潜力;挖潜界限中图分类号:TE357文献标识码:A文章编号:1671—0460(2015)04—0763—03AnalysisonLatentCapacityofTappingPotentialandBoundariesinOil-wa
3、terLayerinZoneSouth2and3ofGaotaiziBlockLIUYan,WANGWen-guang(SchoolofEarthSciences,NortheastPetroleumUniversity,HeilongjiangDaqing163318,China)Abstract:Basedonprecisemasteryofthegeologicalcondition.developmenta1anddistributionalcharacteristicsofoil.waterlayerinGaoTaizioillayerwer
4、eanalyzedaswellasreservoirproducingcontidionandlatentcapacitybyusingdynamicandstaticgeologicaldataincludingcore,mudlogging,wellloggingandwelltesting.Meanwhile,the.reperforatingboundariesofGaotaizioil.water1ayerweredefinedbydataanalysis.suchasWaterexploration.welltestingandcarbon
5、oxygenspectrallogging.Theresultsshowthat.oil-waterinterfacepresentsthetrendlike“n”fromnorthtosouth.and“U”fromwesttoeast:partofoil.water1ayerhasbeenexploited,theexploitingsituationofoil.water1ayeriSworsethanthatofoillayer;Thereservesofverticaloil.waterinterfacearemainlydistribute
6、dinGroupGapIandⅡIthewatercontentofoil.waterlayeriSlowerthanthatofthewholewell;Theremainingoilwasmainlycausedbyincompleteinjection—production,theexploitingeficiencycouldbeincreasedbyimprovingthereleationshipbetweeninjectionandproduction;Thepercentageofreperforationanddepthoftappi
7、ngthepotentialinoil.waterlayerhavebedetermined.whichcanensurethelatentcapacityofoil.waterlayertobefullyexploited.Keywords:Oillayerofgaotaizi;Oil—waterlayer;Latentcapacityoftappingpotential;Boundariesoftappingpotential南二、三区高台子油层位于萨尔图油田南部开岩、钙质粉砂岩和粉砂岩为主,孔隙度变化范围为发区,北起高163井排,南至高196井排
8、,开发面15.0%~25.0%,渗透率变化范围为(1~500)X10积51.7lkIn2,地质
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