The Saihantala Sag in Huabei Oil Field is a typical reservoir of low porosity and low permeability .In this paper we analyze the block geological features ,core test data ,geological da-ta ,logging data and its response characteristics ,study the effective methods for calculation of car-bonate content using the well logs ,and then establish the physical parameters calculation model based on carbonate content .It provides a basis for improving well log interpretation coincidence rate .%赛汉塔拉凹陷储层为典型的低孔低渗储层。根据该区块地质特征，在分析其岩心实验资料、地质资料、测井资料及其响应特征的基础上，进一步研究利用测井曲线计算碳酸盐含量（体积分数）的有效方法，进而建立了基于碳酸盐含量的孔隙度、渗透率计算模型，为提高测井解释符合率奠定了良好的基础。
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