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本文采用非线性反演技术建立了岩性约束反演计算方法，用于地层岩性解释和储层模拟、描述等方面。文中讨论了岩性正演数学模型的建立、初始模型的选取和约束条件对反演结果的影响。给出了综合利用地震、测井和地质资料计算孔隙度和泥质含量的反演结果，并分析了反演精度。理论模型计算结果说明了岩性约束反演的可行性和正确性。并给出Ｓｕｎ工作站上应用该软件处理某油田实际资料的岩性反演结果。
In this paper, non-linear inversion technique is used to establish lithologic constrained inversion calculation method, which is used for stratum lithology interpretation and reservoir simulation and description. In this paper, the establishment of mathematic model of lithology forward modeling, the selection of initial model and the influence of constraints on the inversion results are discussed. The inversion results of calculating the porosity and shale content by comprehensively using the seismic, well logging and geological data are given and the inversion precision is analyzed. The calculation results of the theoretical model illustrate the feasibility and correctness of lithologic constrained inversion. The lithologic inversion results of applying the software to processing the actual data of a field on Sun workstation are given.