叠前地震属性分析及叠前同步反演是近几年发展起来的岩性油气藏预测新技术。充分利用叠前地震属性提高储层预测的准确性，特别是对储层的物性性质及流体进行预测，正逐步引起业界的广泛重视，并成为油气勘探新技术之一。 相对于叠后地震属性而言，叠前地震属性因为没有经过叠加处理，包含了更多的储层信息，比利用叠后地震属性进行储层预测要更加可靠。 论文以X5区石炭系储层为研究对象，综合利用地质、测井和地震方法，从测井分析出发，以岩石物理分析为基础，以岩石物理正演模型研究为可行性评价标准，以叠前同步反演为手段，对以下内容开展了研究。 首先，论文对叠前地震属性分析的理论基础进行说明，阐述了各弹性参数的物理意义，论证了利用叠前地震属性对储层进行预测的可行性，为研究区储层预测研究的方法选择提供了思路，为后续的应用研究奠定了基础。其次，结合实际的研究工区进行了岩石物理参数分析和岩石物理参数正演，得到了一系列适合本工区储层的拟合公式，并通过岩石物理参数正演，计算出了每口井的横波速度、密度等岩石物理参数。然后，利用叠前同步反演技术提取了纵波阻抗、横波阻抗、纵横波速度比、密度、截距及梯度等属性数据体，并根据泊松比、拉梅常数及剪切模量与纵横波速度比、纵横波阻抗及密度的关系，计算得出了泊松比、Lambda/Mu、LambdaRho和MuRho等属性数据体。最后，使用单属性分析、多属性交会解释分析以及岩相流体概率分析方法对反演结果进行了综合分析，有效地识别出了研究区的有利储层，并提出了有利的勘探井位建议。 该技术在X5区取得了良好的效果，为该区进一步勘探与开发提供了强有力的技术支持，并且可以在其他类似区块得到推广和应用。

Pre-stack seismic attributes analysis and pre-stack simultaneous inversion are new technologies of lithologic reservoir prediction. It fully utilizes pre-stack seismic attributes to improve the accuracy of reservoir prediction, especially the reliable forecasts in the physical properties of the reservoir and the direct prediction of fluid. Lithologic hydrocarbon reservoir exploration gradually absorbs great attention and becomes one of the new technologies of hydrocarbon exploration. In comparison of post-stack seismic attributes, pre-stack seismic attributes contain more information, because it is not treated by superposition of stack. This can be more reliable than utilizing the post-stack seismic attributes. In this paper, the following details are analyzed and studied by taking Carboniferous reservoir in X5 for a target, through comprehensive utilization of geology, logging and seismic; from well logging analysis; based on petrophysical analysis; with the research of petrophysical forward modeling as feasibility evaluation standard and pre-stack simultaneous inversion as the means. Firstly, through analyzing the theoretical basis of pre-stack seismic attribute analysis, this paper explaines the physical meaning of the elastic parameters and proves the feasibility of pre-stack seismic attributes analysis, which provides ideas for the choice of methods for reservoir prediction research in the studied area, and then lays the foundation of the subsequent application research. Secondly, the paper researches petrophysical parameters analysis and petrophysical forward modeling based on actual research area to get a series of fitting formulas of the reservoir. And through the rock physical parameters forwardness, the paper calculated each well’s petrophysical parameters such as shear velocity, density and so on. Then pre-stack seismic attributes such as P-wave impedance, S-wave impedance, the ratio of P and S wave velocity, density, intercept and gradient were extracted by use of pre-stack simultaneous inversion. In addition, seismic attributes such as poisson ratio, Lambda/Mu, LambdaRho and MuRho were calculated according to the relationships between poisson ratio, Lambda, Mu and the ratio of P and S wave velocity, P-wave impedance, S-wave impedance, density. Finally, the results of the inversion are analyzed comprehensively by means of single attribute analysis, multiple attributes analysis and facies and fluid probabilities analysis, thus favorable reservoirs of the research area were identified and recommendation well was proposed. The technologies play good effects in the area X5 and provide powerful technical support for the further exploration and development in the area. In addition, it can be extended and applied to the similar area.