四川盆地LH地区杂卤石地震综合识别技术研究

Study on seismic comprehensive recognition technology of polyhalite in LH area of Sichuan basin

随着国家对资源勘探增储的部署要求以及中长期科学和技术发展规划的专项实施,利用地震勘探手段,开展重点含钾盆地的综合预测和建立完善典型的成矿模式迫在眉睫。为此以LH三维地震资料为依托,对钾盐(杂卤石)预测技术进行了探索和总结,形成了一套以矿体空间分布、敏感测井曲线分析、多属性分析、数字高程模型应用、波形复杂程度和微细裂缝刻画、精细储层描述以及矿体综合评价分析为核心的地震综合识别技术,落实了有利目标111.41km2,为后续利用地震勘探方法进行矿产资源勘查提供借鉴。

With the national requirements for the deployment of resources exploration and storage,and the implementation of medium and long-term scientific and technological development plans,it is imminent to use seismic exploration methods to carry out comprehensive prediction of key potassium-bearing basins,and to establish the perfect and typical metallogenic models.Based on LH 3 Dseismic data,the potassium salt（polyhalite）prediction technology was investigated and summarized,and a set of comprehensive seismic identification technology has been developed with the ore body spatial distribution,sensitivity logging curve analysis,multi-attribute analysis,digital elevation model application,waveform complexity,tiny crack description,meticulous reservoir description and integrated evaluation of ore bodies.We implement a favorable target of 111.41 km2 by using this comprehensive seismic identification technology,which provides reference of using seismic exploration methods for follow-up exploration of mineral resources.