提高储层预测精度技术思路与对策

采用地质、地震、测井人员协同一体化作业，对地下地质目标进行综合预测与评价，可提高储层预测精度，降低预测结果的多解性。主要方法是针对不同的区块，采用不同的方法和对策，首先从单井储层划分对比入手，建立储层沉积模式，同时对地震数据目的层段进行精细解释，建立地层构造模式，用沉积、构造等地质规律来指导和约束反演；利用测井资料对地震资料进行精细标定，建立各井的单井波阻抗模型，建立井数据和地震数据沟通的桥梁；在严格的测井约束、地质模型约束、层位控制下进行储层反演；充分利用地质、地震反演结果、地震参数提取及分析结果、测井、测试和分析化验等资料对储层预测结果进行综合分析与评价。该方法应用于长庆、大庆、准噶尔等实际区块，取得了较好的效果。

Methods on Improving the Precision in the Reservoir Predicting

The predicting and evaluating synthetically to the underground geologic object by the cooperation of geologician,seismographer and well logging man can improve the precision and reduce the multi resolution in the reservoir predicting.The main way is using different ways to different blocks: starting with the partition and comparison of a single well reservoir,building a model of reservoir sediment,at the same time doing fine interpretation to the object layer of the seismic data,building a model of the structure of layer,using the geologic rule of sediment and structure to restrict and direct inversion;using the well data to calibrate seismic data,building the impedance model of every well,building the bridge between well data and seismic data;doing reservoir inversion by the severe restriction of well and geologic model and by the control of layer;using the results of geology,inversion,the analysis of parameters,well logging,testing and analysis to analyze and evaluate the reservoir predicting synthetically.The way has given good effect in the blocks of Changqing,Daqing and Zhunger oilfields.