ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    青海省水溶氦气资源现状及赋存特征

    Current Status and Occurrence Characteristics of Water-soluble Helium Resources in Qinghai Province

    • 摘要: 水溶氦气作为氦气藏的一种特殊赋存类型,近年来逐步得到广泛关注。青海省地域广阔,温泉等地下水资源丰富,通过对温泉、冷泉、卤水的系统调查,系统探究了水溶氦资源分布、含量、成因特征及其与温度、矿化度的关系。研究表明:青海省水溶氦气资源的分布与侵入岩关系密切,主要分布于柴达木盆地、共和盆地、玛多地区、南祁连盆地,其中柴达木盆地水溶氦含量最大,最高达1.1%;估算柴达木盆地、共和盆地、玛多地区、南祁连盆地生氦量,分别为39.49×108 m3、2.16×108 m3、1.46×108 m3、1.90×108 m3;水溶氦R值为0.42×10−8~11.07×10−8,R/Ra为0.003~0.068,属典型壳源成因气;氦含量与温度呈弱正相关关系、与矿化度呈正相关关系,且水温大于25 ℃的温泉及矿化度大于1 g/l的咸水是青海省水溶氦资源赋存的有利环境。

       

      Abstract: As a special type of helium reservoir, water-soluble helium has gradually received widespread attention in recent years. Qinghai Province has a vast territory and abundant groundwater resources such as hot springs. Through a systematic investigation of hot springs, cold springs, and brine, the distribution, content, genetic characteristics, and relationship with temperature and mineralization of water-soluble helium resources were systematically explored. Research has shown that the distribution of water-soluble helium resources in Qinghai Province is closely related to intrusive rocks, mainly distributed in the Qaidam Basin, Gonghe Basin, Maduo Region, and South Qilian Basin. Among them, the Qaidam Basin has the highest water-soluble helium content, up to 1.1%; Estimate the helium production in the Qaidam Basin, Gonghe Basin, Maduo Region, and South Qilian Basin, which are 39.49 × 108 m3, 2.16 × 108 m3, 1.46 × 108 m3, and the R/Ra is 0.003~0.068, indicating a typical crustal origin gas; The helium content is weakly positively correlated with temperature and positively correlated with mineralization, and hot springs with water temperature greater than 25 ℃ and saline water with mineralization greater than 1 g/l are favorable environments for the occurrence of water-soluble helium resources in Qinghai Province.

       

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