测井资料异常响应在不整合面识别中的应用

摘要

It possesses all-important geological meanings to study the unconformity in oil-gas exploration.It is found that the logging data contain not only geophysical information,but also geological evolution information.The method of identifying unconformity by logging geology is discussed. According to abnormal response characteristics of logging data,such as sedimentary events,sedimentary facies and sedimentary cycles,mudstone baselines,weathering and leaching zones etc.,combined with the geological information contained there,four key unconformities of Lishu fault depression are identified.%不整合面研究在油气勘查中具有重要意义.研究发现,测井资料不仅包含了地球物理信息,同时也包含了地质演化信息.本文探讨了测井地质学识别不整合面的方法,通过沉积事件、沉积相及沉积旋回、泥岩基线、风化淋滤带等测井资料异常响应特征,结合其所蕴含的地质信息,对梨树断陷断陷层4个关键不整合面进行了识别.