Oxygenmeasurement1石油工业注射技术中的水中氧测量

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1、Oxygenmeasurementinthewaterforinjectiontechnologyintheoilindustry石油工业注射技术中的水中氧测量WATERFLOODINGFig.1BasicsofwaterfloodingFig.2OffshoreplatformhtheEkofiskfield图1：注水基础图2：Ekofisk油田，海上作业平台Applicationdescription应用说明Waterfloodalsocalledwaterinjectionisamethodofsecon

2、daryoilrecoveryinwhichwaterisinjectedintothereservoirformationtodisplaceresidualoil.Thewaterfrominjectionwellsphysicallysweepsthedisplacedoiltoadjacentproductionwells・Waterinjectionwellscanbefoundbothon-andoffshore.Waterfloodingwasbornover125yearsagoandisthe

3、oldestenhaneedrecoverymethod.Waterdoesnotonlydisplaceoilbutisusedalsoforpressuresupportofthereservoir(alsoknownasvoidagereplacement).Waterflood也被称为水注射是一种传统的二次采油方法，水被注入储油层将残余的石油移岀。从注射井中注入的水流将有待移岀的石油，推送至邻近的生产井中。通常在海上或离岸的采油平台都能看到这样的注水井。注水采油的方法诞生于125年前，是最古老的提高采收

4、率的办法。此方法中的水应用，不只是移出残余的石油，也为储油层提供了一定的压力补偿(又名注采比)。WhychooseHachUltra?为什么选择HachUltra的产品？•FullATEXcertifiedanalyzerandoxygensensor完整的ATEX认证分析仪和氧传感器•Sensorwithstandingextremeconditionsupto100bar传感器可承受高达100bar的极端工作环境•Sensorwithspecificelectrodesandelectrolyteallow

5、ingthemeasureinsamplescontainingH2S传感器配以特定的电极与电解液样，可在含有H2S的样本中进行测量•Severalhighcorrosionresistantmaterialavailableforthesensorandtheflowchamber(Monel,TitaniumandHastelloy)儿款高耐蚀性材料可供传感器与流通池机身选配(Monel線铜合金、钛、Hastelloy線基耐蚀耐热合金)•Widemeasurementrangefromppmsaturati

6、onlevelsdownto1ppb.o量程广，可满足从ppm饱和值到低至1ppb的测量Waterqualityrequiredtomaintainhighefficiency良好的水质可保证采油的高效性Forawaterfloodoperationtobesuccessfulthewaterusedforinjectionmustbeofaqualitythatwillnotdamagethereservoirrockandinjectionratesmustbemaintainedbelowtheparti

7、ngpressureofthereservoir.Poorwaterqualitywillresultinlostoilproduction.对于成功的注水操作而言，必需保证注射用水质量，不能对储油层岩壁有任何损害，同时注入率还需要被控制在储油层压力临界点以下。如水质较差，会导致原油在生产中的流失。Theproperbalaneebetweenwaterqualityandcosthastobedetermined.Rigorouswaterqualityguidelineslike98%removalofpa

8、rticlesabove2microns,oil<5ppm,andoxygen<50ppbwillnearlyalwaysprovidewaterofsufficientquality.Becauseofincreasingscarcity,freshwaterwillnotgenerallybeaviablesource.Therefore,mostinjectionprojects