以永川地区龙马溪组深层页岩气储层为例，对不同井型条件下的测井资料进行有

以永川地区龙马溪组深层页岩气储层为例，对不同井型条件下的测井资料进行有机质含量计算方法探讨。结果表明：直井（取心井）中，由于获取测井资料丰富，可采用多种方法对有机质含量大小计算。将计算结果与岩心数据进行误差分析，确定工区内直井中多元拟合法、密度法为最佳计算模型。水平井中,受资料采集限制，提出运用伽马能谱叠合区域差值法与体积密度法相结合的方法，考虑轨迹的空间位置，有效解决了水平井有机质含量计算难题。本次研究对于不同井筒条件下的有机质计算模型作了较全面探讨与研究，值得四川及其它页岩气工区储层有机质含量计算参考与借鉴。

以永川地区龙马溪组深层页岩气储层为例，对不同井型条件下的测井资料进行有机质含量计算方法探讨。 结果表明：直井（取心井）中，由于获取测井资料丰富，可采用多种方法对有机质含量大小计算。 将计算结果与岩心数据进行误差分析，确定工区内直井中多元拟合法、密度法为最佳计算模型。 水平井中,受资料采集限制，提出运用伽马能谱叠合区域差值法与体积密度法相结合的方法，考虑轨迹的空间位置，有效解决了水平井有机质含量计算难题。 本次研究对于不同井筒条件下的有机质计算模型作了较全面探讨与研究，值得四川及其它页岩气工区储层有机质含量计算参考与借鉴。

Taking the deep shale gas reservoir of Longmaxi formation in Yongchuan area as an example, the calculation method of organic matter content of logging data under different well types is discussed. The results show that in vertical wells (coring wells), due to abundant logging data, various methods can be used to calculate the organic matter content. By analyzing the error between the calculation results and the core data, it is determined that multivariate fitting method and density method are the best calculation models. Due to the limitation of data acquisition in horizontal wells, the method of combining gamma ray energy spectrum superposition area difference method with volume density method is proposed. Considering the spatial position of trajectory, the problem of calculating organic matter content in horizontal wells is effectively solved. This study makes a comprehensive discussion and Study on the calculation model of organic matter under different wellbore conditions, which is worthy of reference for the calculation of organic matter content in Sichuan and other shale gas areas.<br>