EVALUATION OF WATER SOLUBLE HELIUM RESOURCES IN WEIHE BASIN
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摘要: 通过对渭河盆地水溶氦气资源的评价,认为渭河盆地水溶氦气资源分布广泛、品位高,水溶气成因类型具有异岩多源混合的特点。水溶氦气主要来自于壳源气,富铀花岗岩是其主要的源岩;盆地中深层地热水水溶氦气有4种成藏模式,即深大断裂带对流型水溶氦气成藏、断块对流-传导复合型水溶氦气成藏、断阶传导型水溶氦气成藏、凹陷传导型水溶氦气成藏;采用含氦水溶气计算法和铀放射性衰变计算法求得盆地水溶氦气资源量为984.20×108~1141.31×108 m3。Abstract: The discovery of water soluble helium in Weihe Basin was introduced in this paper.Researches showed that the water soluble helium resources in Weihe Basin the resources are widely distributed and highly graded in Weihe Basin. The cause types of water-soluble gas are of different rock multi-source mixed characteristics, and the water soluble helium gas mainly comes from the shell source gas, with uranium rich granite being the main source rock; four reservoir models build in deep basin geothermal water soluble helium; two kinds of methods to obtain the basin water soluble helium resources with quantity of (984.2-1141.31)×108 m3.
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Key words:
- Weihe Basin /
- water soluble gas /
- water soluble helium /
- discovery and evaluation /
- development prospect
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表 1 渭河盆地地热井水溶气中氦气含量统计
Table 1. Water soluble Helium content statistics in geothermic wells in Weihe Basin
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