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对叠后地震剖面进行构造解释后,再从井旁道出发对目标层段进行非等时的外推波阻抗反演,使用相同层位的地震数据能够在相同低频背景的约束条件下进行反演运算。这对于提高解的精度、减少反演的多解性是十分有益的。本文描述了测井和构造形态共同约束下的地震资料目标反演方法。该方法综合了测井约束反演和模型法反演的优点,避免了它们各自的缺点。实际资料的反演结果表明,该方法具有较高的分辨率和运算速度,及演出的地震参数具有较高的可信度和明确的地质意义,可用于油气勘探开发中的储层或油藏预测。
After tectonic interpretation of the post-stack seismic profile, the non-isochronous extrapolated impedance inversion of the target interval is carried out from the side of the well, and the seismic data of the same horizon can be inverted under the same low frequency background constraint Perform calculations. This is very beneficial for improving the accuracy of solution and reducing the multiplicity of inversion. This paper describes the seismic data object inversion method under the constraint of well logging and structural morphology. This method combines the advantages of logging constrained inversion and model inversion, avoiding their respective drawbacks. The inversion results of actual data show that this method has high resolution and computing speed, and the seismic parameters of the show have high credibility and definite geological significance, and can be used in reservoirs or reservoirs in oil and gas exploration and development prediction.