摘要
变差函数能够反映区域化变量的空间变化特征,是建立精细三维地质模型的关键。分析研究区储层地质特征及目标层位PI1-PI4沉积单元的沉积特征。具体分析了在Petrel建模软件中应用变差函数分析实际地质情况,并且进一步分析了目标层位变差函数类型的选择、在沉积微相控制条件下变程的拟合以及搜索半径和带宽的确定。根据渗透率资料对目标层位进行变差函数分析并通过实际地质资料进行验证,最终建立了精细地质模型,从而为油田的后期开发和调整提供依据。
Variogram is the important factor to establish a fine 3D geological model,which can reflect the spatial variation of regionalized variables.The reservoir characteristics of the study area and studied the sedimentary characteristics of the target layers PI1-PI4 are analyzed,and it showed how to use variogram analysis the actual geological conditions in petrel.The choice of variogram type,the range fitting under the control of sedimentary facies and the search radius and band are analyzed.According to target layers permeability data for variogram analysis and verified by the geological data.It could helpful to the later development and adjustment of oilfields when established the fine 3D geological model based on permeability data.
出处
《科学技术与工程》
2010年第29期7147-7150,共4页
Science Technology and Engineering
