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自1939年以来,我国开始了地球物理测井工作已有七十多年的历史。测井方法由单一的电测井,发展到现在的声、电、放(放射性)、核磁共振、声电成像测井,大幅度提高了测井解决地质及工程问题的能力。但常规测井受仪器纵向分辨率的限制,使测井曲线分辨率普遍较低,薄层段的测井响应不明显,往往不能反映薄储层的真实信息,进而影响了薄储层的正确评价。为了正确地评价和解释薄层,本文通过反褶积法和频率匹配法两种方法来提高曲线的分辨率,并分别给出了具体的算法。通过分析,经过高分辨率处理后的曲线在很多层段上横向幅度得到了提高,尤其是在层厚为0.3m的薄层段效果比较明显。
Since 1939, China began geophysical well logging work for more than 70 years. Logging methods have evolved from single electrical logging to acoustic, electrical, radioactive, nuclear magnetic resonance, and acoustic-electric imaging logging to significantly improve logging’s ability to solve geological and engineering problems. However, the conventional logging is limited by the longitudinal resolution of the instrument, so that the logging curve resolution is generally low, and the logging response of the thin section is not obvious, which often can not reflect the real information of thin reservoirs and thus affect the correctness of thin reservoirs Evaluation. In order to correctly evaluate and explain the thin layer, this paper through the method of deconvolution and frequency matching method to improve the resolution of the curve, and gave the specific algorithm. Through analysis, after high-resolution processing of the curve in many layers on the horizontal amplitude has been improved, especially in the layer thickness of 0.3m thin section effect is obvious.