【作者】 刘兰；

【导师】 刘晓冬； 孙小洁；

【作者基本信息】 大庆石油学院 ， 油气田开发工程， 2008， 硕士

【摘要】 本文综合运用现代沉积学理论,在对双河油田扇三角洲前缘沉积微相特征研究的基础上,利用测井以及岩心分析等资料,对双河油田核三段Ⅲ油组储层微观非均质性、层内非均质性、层间非均质性以及平面非均质性特征进行研究。储层微观非均质性研究,通过镜下观察分析碎屑颗粒成分、确定了孔隙、喉道的大小、分布、配置及连通性,以及岩石的组分、颗粒排列方式、基质含量及胶结物的类型等来说明储集层微相的非均质性。层内非均质性研究,根据储层岩性及电性特征,将层内夹层划分为三类,统计单砂层内夹层的个数、累积夹层厚度、夹层频率及夹层密度,根据夹层在不同沉积微相砂体内的频率及密度,总结夹层分布特征。并通过不同沉积韵律类型分级及计算砂层内渗透率的变异系数、突进系数以及级差来说明储层的非均质特征。层间非均质性研究,通过分层系数、砂岩密度及重叠系数来描述砂层的发育与分布;采用典型曲线对比法来确定隔层岩性及其厚度并总结隔层的分布特征。砂体的平面非均质性,根据不同沉积微相砂体统计其几何形态参数;根据每口井的测井解释资料得到了一组反映储层特征在平面上变化的参数,其中包括储层厚度分布、孔隙度以及渗透率,并且成图。根据不同沉积微相砂体内单砂体的发育情况及发育特征总结单砂体在沉积微相控制下在平面上的分布规律。选取具有典型特征的联井剖面,进行剖面相分析,恢复古沉积环境,确定了沉积环境在时间、空间的演化规律,指导了物源的分析。并根据每口井的测井资料,对储层进行了各参数的处理,而后,根据克里金插值法对井间进行插值,得到了一组反映储层特征在平面上变化的参数图,包括储层厚度分布、孔隙度以及渗透率的平面展布,总结单砂体平面分布及连通规律。基于以上研究,评价储层的非均质性,对油田开发调整具有较高的参考价值。更多还原

【Abstract】 This article synthesis using modern sedimentology theory,based on the research in deposits in the micro characteristic of the double river oil field fan delta front,using the material about oil well logging and core analysis,to do the research about reservoir microscopic heterogeneity,the level heterogeneity,the level heterogeneity as well as the plane anisotropic characteristic of double river oil field nucleus three sectionsⅢin oil line。The reservoir microscopic heterogeneity research,observed the analysis detritus pellet ingredient through the mirror,to determine the hole,throat’s size,the distribution,the disposition and the connectivity and the rock component,the pellet arrangement way,the matrix content and agglutinated the type and so on , to show the reservoir micro heterogeneity。In the level the anisotropic research,according to the reservoir lithological character and the electrical characteristic,to divide the level in the band three kinds,to count in the single sand body the band integer,to accumulate band thickness,the band frequency and the band density,according to the band the micro granulated substance in vivo frequency and the density,to summarize the band distributed characteristic。Then explain the reservoir the non-isotropic characteristic through in the different rhythm of sedimentation type graduation and the computation sand body the penetration coefficient coefficient of variation,the advance coefficient as well as the grading。The level the anisotropic research,basing on the lamination factor,the sandstone density and the overlap coefficient describes the sand body growth and the distribution;using the master curve correlation method to determine that the insulation lithological character and thickness and summarize the insulation distributed characteristic。Granulated substance body’s plane heterogeneity,according to deposits the micro granulated substance body to count its geometry shape parameter differently;according to each well’s well logging interpretation material to obtain a group to reflection that the reservoir characteristic the parameter which changed in the plane,including the reservoir thickness distribution,the porosity as well as the penetration coefficient,and became the chart。According to deposits differently the micro granulated substance in vivo Shan Shati growth situation and the growth characteristic total invoice granulated substance body to summary the deposits micro controls in the plane distributed rule。Selecting the typical characteristic joint well section plane,analyzing the section plane,restoring the old extensively the environment of deposition,to determine the environment of deposition in the time,the spatial evolved rule and instruct the source analysis。And according to each well the log information,to process various parameters of the reservoir。Then,carries on the interpolation according to the gram Riggin interpolation to the well,to obtain a group to reflect that the reservoir characteristic the parameter chart which changed in the plane,including reservoir thickness distribution,porosity as well as penetration coefficient plane mop,total invoice granulated substance body plane distribution and link rule。Based on the above research,appraisal reservoir’s heterogeneity has the high reference value to the oil-field development adjustment。更多还原