ABSTRACT:The elements logging technology can be used to identify the lithology and minerals through measuring the content, distribution and composite features of the elements in the rocks, thus carrying out the correlational studies such as the thin layer division, special lithology identification, and reservoir analysis, etc. Due to the influence of special drilling technology, the cuttings of horizontal well became very finely, the conventional identification methods are difficult to accurately identify lithology. Through the contrast tracking research on characteristics of element content of drilled?well, this paper sums up the element combination characteristics of favorable reservoirs near the weathering crust, which provides the reference for the geosteering work of horizontal well.%元素录井技术通过测量岩石中的元素含量、分布、组合特征来识别岩性、矿物，从而开展小层划分、特殊岩性识别、储层分析等相关研究。水平井由于其特殊的钻井工艺影响，岩屑变得非常细碎，常规鉴定手段较难准确识别岩性。通过已钻井元素含量特征的对比跟踪研究，总结出了风化壳附近有利储层的元素组合特征，为水平井地质导向工作提供了参考依据。
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