利用元素录井进行碳酸盐岩岩性精细解释研究

A Study on Fine Interpretation of Carbonate Lithology Based on X Radial Fluorescence Mud Logging Information

摘要: 元素录井(XRF)技术能够获取岩石中的化学元素信息，通过化学元素的组合与质量分数的变化，可以进一步鉴定岩性、划分地层。利用元素录井资料，通过建立碳酸盐岩解释模型，计算碳酸盐岩主要化学成分质量分数来指导现场进行岩性识别，能有效提高碳酸盐岩地层岩性识别能力。现场应用表明该方法解释效果良好，与斯伦贝谢ECS测井解释结果相当，该方法对其他地区具有借鉴和指导意义。

Abstract: X Radial Fluorescence Mud Logging (XRF) technology could obtain chemical elements information in rocks. The lithologic characters and strata could be further identified through the combination and content variations of chemical elements. Based on the element mud logging data, the carbonate chemical composition was used to guide the field identification of lithology by establishing carbonate interpretation model, which could effectively improve the ability of identification of carbonate formation. Field application shows that the method is effective and the effect is equal to Schlumberger ECS log. This method can be the reference and guidance for other regions.