温吉桑气田气藏精细描述

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1、摘要针对凝析气藏的地质特征和特殊的开发工艺要求，对温吉桑凝析气藏进行了储层地质精细描述。麻用以露头、岩心、测井和高分辨率地震反射剖面资料为基础的高分辨率层序地层学，确定短期利中期基准面旋同，建立凝析气藏储层的沉积地层对比骨架。进行小层对比划分，结合沉积背景和相带组合，对小层的沉积微相类型进行确定。针对小层储集物性和动态资料的研究分析，在区域地质构造背景下对井间断层及性质进行重新确定，同时对储层进行四性关系和非均质研究。在以上研究工作基础上，以定性和定量相结台、静态和动态相结合、宏观和微观相结合，然后根据判别的可靠程度进行回归分析，对以小层为单位的储层

2、精细描述和表征。结合温吉桑凝析气藏油气富集分布规律与目前开发动用效果，开展了小层厚度、含气面积和含气饱和度等参数的重新标定，对温吉桑凝析气藏七克台组、三间房组和西山窑组储层在目前开发条件下的可采储量进行了复算。最终借助现代计算机技术，建立起真实、客观的储层三维地质模型。关键词：凝析气藏非均质性流动单元无阻流量TheaccuratedescriptionofthereservoirinWenJisanggaspoolAbstractWitllaprecisedescriptionofWenJisangcondensategasp001．thethesi

3、sconfirmsshort—andlong—termbaselevelcyclesbasedonthereferencesofoutcrop，core，logandseismicdata，establishesformationcontrastframeworkofreservoir,classifiesthelayercorrelationandestablishesthetypesoflayer’ssedimentarymicro—faciescombinedwitflsedimentaryenvironmentsandfaciescombin

4、aton．Withtheanalysisofpropertyoflayeranddynamicdata，guidedbythetheoryofregionalgeologicalstructure，thethesisreclassifiesfaultageonthebasisofresearchresults．Meanwhile，ita／soresearchesintofour-characteristicrelationandhomogenousofthereservoirwiththeapplicationofdynamicdata，analys

5、isdataandlogdata．Basedonthese，withthecombinationofqualitativeandquantitativestudy,staticanddynamicstudyandmacro-·andmicro--study,clusteringanalysisanddiscriminationanalysisareappliedinthestudy．Theallsandstonesinthestudiedareashasbeclassifiedwiththemeansofclusteringanalysisfirst

6、，andtheresultofanalysisclusteringhasbeverifiedwiththediscriminationineans，accordingtothecredibilityofthestudiestheregressionmodelshouldbebuildingwiththeregressionanalysistomakeflow·unitdivisionofsandstonesoflayersandrecalculatetheparameterslikewidth，gas—bearingareaandgassaturat

7、ion．TherebythereservesofQiketai，SanjianfangandXishanyaoofWenJisangcondensategaspoolisrecalculated．Athree—dimensionalgeologymodelisestablishedwimthefacilitationofcomputers．Theresultsshowsthatthedivisionwiththeapplicationofthehigh-definitionstratigraphyhasthehighprecisionandstron

8、gapplicabilitytothecertaintyofsedimentarymicro—facies,