摘要：【中文】本发明实施例公开了一种基于铀曲线拟阻抗约束的页岩密度参数叠前反演方法，包括如下步骤：步骤100、基于声波、密度和铀测井曲线计算拟阻抗曲线；步骤200、对地震资料进行保幅处理，抽取高品质共反射点道集，并采用线性叠前弹性反演去除AVO因素的干扰获得纯纵波数据；步骤300、结合拟阻抗曲线和纯纵波数据进行叠后反演的数据体构建密度约束条件；步骤400、进行叠前密度参数的反演；本发明基于铀测井曲线对页岩有机质丰度的强敏感性及其与密度参数的强相关性，并依据去除了AVO效应干扰的纯纵波资料反演获取拟阻抗，然后利用拟阻抗与密度参数的相互关系约束密度反演过程，建立基于铀测井曲线拟阻抗约束的页岩密度参数叠前反演方法，提高页岩品质的预测精度。 【EN】The embodiment of the invention discloses a shale density parameter prestack inversion method based on uranium curve impedance-fitting constraint, which comprises the following steps: step 100, calculating a simulated impedance curve based on the acoustic wave, the density and the uranium logging curve; step 200, amplitude preservation processing is carried out on seismic data, a high-quality common reflection point gather is extracted, and interference of AVO factors is removed by adopting linear prestack elastic inversion to obtain pure longitudinal wave data; step 300, constructing a density constraint condition by combining a data volume subjected to post-stack inversion by a pseudo-impedance curve and pure longitudinal wave data; step 400, performing inversion of pre-stack density parameters; according to the method, the quasi-impedance is obtained through inversion according to pure longitudinal wave data without AVO effect interference based on the strong sensitivity of the uranium logging curve to the abundance of shale organic matter and the strong correlation of the uranium logging curve and density parameters, then the density inversion process is constrained by the mutual relation between the quasi-impedance and the density parameters, the shale density parameter pre-stack inversion method based on the quasi-impedance constraint of the uranium logging curve is established, and the prediction accuracy of shale quality is improved.