The World's First Discover of Industrial Helium Reservoir in Sedimentary Crust with Mantle Origin

There are three kinds of helium in the earth,i. e. atmospheric,crust derived and mantle derived ones, which's He/⁴He ratio are 1. 4 × 10^-4,2 × 10^-10,1. 1 × 10^-5 respectively. Mainly resourced from natural gas reservoirs,helium concentration if mainly related to the α decay of urinium and thorium, thus,its enrichment generally is accompaning by the decrease of He/⁴He ratio, ordimarily in the grade of 10^-8. Based on the recent years of the both side of Tancheng - Lushan Fault in eastern China,the author found the helium abundance reached or higher than 0. 1% in some industrial gas droll holes,i.e.,up to the standard of industrial helieum reservoir,but the intresting point is that the He/⁴He ratio measured is as high as 3.7^-6.36×10^-6. As atmospheric He can be neglected in industrial wells, and the calculation shows that the mantle derived He can up to 33.7-57. 3% of these He gases,then the industrial He reservoirs in the sedimentary crust that derived from the mantle were first found internationally. It is a discover of a new helium source, moreover, it not only provided information of the analysis, migration, reservoir of mantle volatile components, but also a geological body to study on the hot point of geoseience.i. e, the relationship between the crust and the mantle. And the discovery of industrial helium reservoir is also significant of the research of non - biogenic methane and so on.