非线性拟测井曲线反演在油藏监测中的应用及展望

发布时间：2018-05-17 02:40

本文选题：非线性拟测井曲线反演 + 时移拟测井三维数据体　；参考：《石油地球物理勘探》2017年02期

【摘要】：地震反演技术广泛应用于储层预测及流体检测。本文结合时移测井数据,进一步将地震反演技术推广应用于油藏监测。首先给出了高精度波阻抗外推反演和Seimpar非线性拟测井曲线反演的原理与方法;然后以实际应用为例,利用三维地震数据和声波测井数据作为输入,反演得到高精度三维波阻抗数据体;再将三维波阻抗数据体和时移测井数据作为输入,应用Seimpar非线性拟测井曲线反演得到不同时期的拟自然电位和拟电阻率的三维数据体;进而利用该时移拟测井三维数据体,预测剩余油分布、实现油藏监测。应用结果表明,联合高精度波阻抗外推反演和Seimpar非线性拟测井曲线反演提供的二维、三维拟测井数据体,用于剩余油分布预测和油藏监测,识别出2m以上单层砂岩符合率达80%以上,依据这一成果部署了32口加密井,全部获得成功。
[Abstract]:Seismic inversion technology is widely used in reservoir prediction and fluid detection. In this paper, seismic inversion technique is further applied to reservoir monitoring based on time-lapse logging data. The principle and method of high precision wave impedance extrapolation inversion and Seimpar nonlinear logging curve inversion are given, and then the 3D seismic data and acoustic logging data are used as input, taking practical application as an example. The 3-D wave impedance data volume with high accuracy is obtained, and the 3-D wave impedance data volume and time-shift logging data are used as input, and the pseudo natural potential and pseudo resistivity data volume of different periods are obtained by Seimpar nonlinear pseudo logging curve inversion. Furthermore, the time shift logging 3D data volume is used to predict the distribution of remaining oil and to realize reservoir monitoring. The application results show that the 2D and 3D quasi logging data provided by the combination of high precision wave impedance extrapolation inversion and Seimpar nonlinear logging curve inversion are used for residual oil distribution prediction and reservoir monitoring. The coincidence rate of more than 2m single layer sandstone is over 80%. According to this result, 32 infill wells are deployed, all of which are successful.
【作者单位】：中国石油天然气集团公司;中国石油勘探开发研究院西北分院;
【分类号】：P631.4;P631.81

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