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本文运用 3- D协克里格方法将地震资料和井孔数据结合 ,从而提高了油藏参数插值精度。 3- D协克里格技术适用于远离井区的油藏参数模拟 ,通过加入地震特征信息 ,使得油藏参数的插值精度比单纯使用从井孔获得的硬数据高 ,从而成功地实现了采样密度高、分布范围广的地震特征数据 (软数据 )和从井孔获得的硬数据的融合。在选取地震特征时通过主成分分析法降低地震特征数据的维数 ,并提出利用主成分下沉法获得采样点的协变量来避免采用平均井点参数值的方法 ,因此提高了参数模拟精度。同时也为地震数据 (软数据 )和井孔数据 (硬数据 )的结合提供了一条新途径。本文采用胜利油田埕岛南区的实际数据对该方法进行了验证 ,效果明显。
In this paper, seismic data and borehole data are combined using the 3-D Coeclear method, which improves the accuracy of reservoir parameter interpolation. The 3- D Coefficient technology is suitable for reservoir parameter simulation far away from the wellbore. By adding seismic signature information, the interpolation accuracy of reservoir parameters is higher than that obtained by simply using the hard data obtained from the wellbore, thus successfully sampling The combination of high-density, widely distributed seismic signature data (soft data) and hard data obtained from boreholes. In the selection of seismic characteristics, the principal component analysis (PCA) is adopted to reduce the dimensionality of the seismic feature data and the covariate of the sampling points is obtained by using the principal component subtraction method to avoid using the average well point parameter value, thus improving the parameter simulation accuracy. It also provides a new avenue for the combination of seismic data (soft data) and borehole data (hard data). In this paper, Shengli Oilfield Huangdao South of the actual data to verify the method, the effect is obvious.