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应用测井约束地震反演技术描述桩106 断块储集层[刊]/ 刘磊, 邢正岩...∥石油勘探与开发.1999,26(5) .80 ~82桩106 断块位于济阳坳陷埕东凸起北部缓坡带,是胜利油田近几年滚动勘探开发效果较好的产能建设区块。该区属多期分流河窄道沉积, 厚度薄, 油层虽较单一,但成藏主要受岩性控制, 因此勘探难度高, 开发风险大。测井约束地震反演用已知的地质信息和测井资料建立初始的波阻抗模型, 然后采用模型优选迭代算法不断修改和更新波阻抗模型, 使正演的合成地震记录与实际的地震记录达到最佳吻合, 最终的模型便是反演的结果。针对桩106 断块的储集层发育情况, 建立了一套适合本区特点的处理流程,包括测井资料的分析校正、地震子波的提取、控制层位的解释、初始波阻抗模型的建立、反演参数的选取等5 个技术环节。采用此方法精细描述储集层的空间展布,并与其它优化技术相结合,按照滚动程序高速高效勘探开发桩106 断块, 取得了较好的勘探开发效果。图3 参2( 邹冬平摘)
Application of logging constrained seismic inversion technique to describe pile 106 faulted reservoir [Issue] / Liu Lei, Xing Zhengyan. . . ∥ Oil Exploration and Development. 1999, 26 (5). The fractured block -80 ~ 82 of the pile 106 is located in the gentle slope zone of the northern part of the Jindong uplift in the Jiyang Depression. It is a productive construction block with favorable rolling exploration and development achievements in the Shengli Oilfield in recent years. This area belongs to a multi-period distributary channel narrow channel sedimentation, thin, although the reservoir is more single, but the reservoir formation is mainly controlled by lithology, so exploration is difficult and development risk is high. Log constrained seismic inversion is used to establish the initial wave impedance model with well-known geological information and well logging data. Then the model optimization iterative algorithm is used to continuously modify and update the wave impedance model so that the forward synthetic seismic record and the actual seismic record reach The best match, the final model is the result of inversion. Aiming at the development of the reservoir in the block 106 block, a set of processing flow that is suitable for the characteristics of this area is established, including the analysis and correction of logging data, the extraction of seismic wavelet, the interpretation of control horizon and the establishment of initial impedance model , The choice of inversion parameters and other five technical aspects. This method is used to describe the spatial distribution of reservoirs in detail. Combining with other optimization techniques, the pile 106 block is explored and developed at high speed and high efficiency in accordance with the rolling program, and a good exploration and development effect is achieved. Figure 3 reference 2 (Zou Dongping pick)