APPLICATION OF LOGGING TECHNOLOGY IN DEEP BRINE EXPLORATION IN QAIDAM BASIN
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摘要:
测井技术一直以来普遍应用于煤田、天然气、淡水资源、石油、固体矿产等领域，取得了不少的成果及经验，但在深层卤水资源勘查中应用较少.通过分析研究"青海省冷湖镇马海地区深层卤水钾矿勘查"等诸多项目的测井成果，总结出三侧向电阻率、自然伽马、声波时差、自然电位等参数在新生代地层中的特征，发现普通测井方法在盐湖资源勘查中有很大的指导作用，是深层卤水资源勘查不可或缺的勘探方法.通过统计分析大量盆地内的测井资料，找出测井曲线的形态特征与单井层序之间的关系，然后使用定量识别来分析和验证自然伽马、声波时差等参数范围及曲线特征，总结出适合柴达木盆地深层卤水勘查的测井解释方法.
Abstract:Logging Technology has been being widely used in the fields of coal field, natural gas, freshwater resources, petroleum and solid minerals, which has gained lots of achievements and experience, but it is seldom used in the exploration of deep brine resources. By studying the logging results of many projects such as "Exploration of Mahai Deep Brine Potassium Deposit in Lenghu Town of Qinghai Province", the paper summarizes the characteristics of parameters including laterolog-3 resistivity, natural gamma-ray, sonic differential time and spontaneous potential in Cenozoic strata, and finds the common logging method being an indispensable guide to the exploration for salt lake resources, particularly for deep brine resources. The relation between characteristics of logging curves and single well sequence is found through statistical analysis of large amounts of logging data in the basin. Then the quantitative recognition is used to analyze and verify the parameter range and curve characteristics of natural gamma-ray and sonic differential time, and the logging interpretation method suitable for deep brine exploration in Qaidam Basin is summarized finally.
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Key words:
- logging technology /
- Qaidam Basin /
- deep brine /
- quantitative recognition /
- Qinghai Province
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