简介:[摘要]:随着油气资源的不断开采,油气开发力度、深度逐步加大。中低渗透油藏是一种相对分布广泛的油气资源,由于其油气分布的特殊性,注水采油技术是开发的有效方式。本文主要分析了中低渗透油藏的特征,并结合目前影响中低渗透油藏注水采油的因素进行了探究,有针对性的提出了相应的完善措施,旨在能够进一步的为采油工艺的发展奠定一定的基础。
简介:摘要:中低渗油藏由于储层物性差、渗透率低,造成油井自然产能低,且在钻井、作业和生产过程中地层易受伤害,导致产量下降。必须进行储层改造,改善渗流能力,提高油井产能。压裂已经成为八面河油田目前最主要的储层改造手段之一。本文结合各区块的储层特征,对配套的工艺进行优化,分析了工艺上面临的主要形势,提出了下步对策。
简介:[篇名]Amethodofmakingborideandvitreouscompoundbypowdermetallurgy,[篇名]Ceramic-metalcompositesobtainedbyreactiveprcssurclcsscountcrflowinlitration/pcnctration(RPCI)ofaceramicsubstratewithtwodifferentmetallicinfiltrants,[篇名]CharacterizationofDirectionallySolidifiedB{sub}4C-TiB{sub)2andB{sub)4C-SiCEutecticCompositesPreparedbyFloating-ZoneMethod,[篇名]Corrosionresistanceofanironbaseboridccermetswithoxidesurfacelayersnamoltenalalloy,[篇名]Crackpropagationcharacteristicsandfracturesurfaceenergyofborideconners,[篇名]Depositionofhardand/orcorrosionresistant,singleandmultielementcoatingsonferrousandnonferrousalloysinfluidizedbedreactor,[篇名]Depositionofprotectivecoatingsontungstenfreehardalloys。
简介:AnomalousLeakageCurrentinSilicon0xynitrideThinFilmsGrownbyMicrowaveExcitedNitrogenPlasmaNitridation.Applicationoftheexplosivemethodforcreatingnitrogenlayers;Brightplasmanitridingofferriticsteelwithseveralalloyingelements;Cleaningasthemostimportantsteptowardssuccessfulheattreatment
简介:Developmentandpracticalapplicationofborideasengineeringceramics;Developmentandpracticalapplicationofborideasengineeringceramics;Effectofboronmicro-alloyingonmicrostructureandmechanicalpropertiesoffine-grainedCM247LCsuperalloy;Effectsofmetallicelementsonthermoelectricpropertiesofsiliconborides
简介:[篇名]ActivatedMigrationSintering,[篇名]Activationofsteelsurfacesbyoxynitriding,[篇名]Activescreenplasmanitridingtechnology,[篇名]AdvancedPlasmaNitridingforAluminumandAluminumAlloys,[篇名]Ananti-corrosionandwear-resistingcompoundingnitridedlayeronprecisepressedpartsofsoftsteels,[篇名]Anexperimentalstudytocorrelatewaterjetimpingementerosionresistanceandpropertiesofmetallicmaterialsandcoatings,[篇名]AnInfluenceofSonBombardingontheEffectsofNitridinginD.C.GlowDischargePlasma。
简介:目的:探讨术中低渗温热化疗后植入缓释氟尿嘧啶对食管癌患者的安全性。方法:实验组48例食管癌患者行手术治疗,术中给予低渗温热化疗后植入缓释氟尿嘧啶(中人氟安);对照组42例,仅单纯手术治疗。比较两组患者术后毒副反应及并发症情况。结果:实验组和对照组术后并发症发生率无显著差异(x^2=0.66,P〉0.05)。实验组术后消化道反应、骨髓抑制比率高于对照组,但无统计学差异(x^2=0.41,P〉0.05;x^2=0.14,P〉0.05);肝肾功能比较两组无显著差异(x^2=0.03,P〉0.05;x^2=0.01,P〉0.05)。结论:食管癌术中低渗温热化疗后植入中人氟安是安全的。