学科分类
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6 个结果
  • 简介:小浪变换(WT)方法被采用了把一个原来的地球物理的信号分解成关于象毛孔液体,岩性学,和毛孔结构那样的水库特征包含不同信息的一系列部件。我们基于WT精力系列分析,反映水库液体性质的信号部件被提取开发了一个新方法。我们成功地用这个方法在华中从一块油地处理了真实木头数据。水库液体鉴定的结果同意井测试的结果。

  • 标签: 小波变换 能谱分析 储层流体识别 电法测井
  • 简介:Thepresentpaperisfocussedontheeffectsofviscousandturbulentshearstressesonbothverticalvelocityandconcentrationdistributionsinlargesuspensionofsands.Whentheflowcarrieslargeamountofsedimentsinsuspension,thepropertiesoffluidmixturearechangedintermsofmodifiedviscosity,densityandfallvelocity,andhencetheflowcharacteristics.Theoreticalmodelshavebeendevelopedforbothvelocityandconcentrationprofiles,takingintoaccounttheviscousandturbulentshearstresses,whicharethefunctionofvolumetricconcentration.Comparisonoftheoreticalmodelswithexperimentaldatarevealsthat(i)themodifiedvelocityandconcentrationprofilesagreewellwiththeobserveddataforhighsuspension,(ii)thehigherthesedimentsuspension,thesmallerthevonKarmanconstant,and(iii)sedimentdiffusioncoefficientislessthanmomentumdiffusioncoefficientforfinesandsinsuspension.

  • 标签: SEDIMENT suspension Viscosity Turbulent shear stress Hindered settling Velocity and