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geochemical evolution pattern
相关语句
  地球化学演化模式
     Geochemical Evolution Pattern and Enrichment Regularities of the Inorganic Oil and Gas of Huangqiao, Jiangsu Province
     江苏黄桥无机油气的地球化学演化模式与富集规律
短句来源
  相似匹配句对
     The element geochemical evolution is also described.
     划分了两个成矿阶段,指出了元素地球化学演化的规律性。
短句来源
     EVOLUTION OF DEHYDROXY-VITAMINE E AND ITS GEOCHEMICAL SIGNIFICANCE
     脱羟基维生素E的演化规律及其地球化学意义
短句来源
     and geochemical characteristics.
     地球化学特征。
短句来源
     The Evolution of the Enterprise
     企业形态演化论
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     THE EARTH EVOLUTION
     地球年历
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The latest study shows that Huangqiao area, Jiangsu Province is located at the concealed deep fault from Binhai to Tonglu. Trending in NS and developing along 120°E longitude, the fault extends more than 500km long and is 20~30km wide. With a transcurrent shear property, it almost vertically cuts the late Tertiary system down to the bottom of lithosphere, and provides a favorable path for the inorganic oil and gas from the depth to move up toward the surface. The CO 2 from the CO 2 gas field of Huangqiao...

The latest study shows that Huangqiao area, Jiangsu Province is located at the concealed deep fault from Binhai to Tonglu. Trending in NS and developing along 120°E longitude, the fault extends more than 500km long and is 20~30km wide. With a transcurrent shear property, it almost vertically cuts the late Tertiary system down to the bottom of lithosphere, and provides a favorable path for the inorganic oil and gas from the depth to move up toward the surface. The CO 2 from the CO 2 gas field of Huangqiao was considered to be originated from the mantle (Dai Jinxing, 1995; Xu Yongchang, 1994; Chen Husheng, 1999). The research results in this paper indicate that the CO 2 of this gas field was not derived from the mantle, but resulted from oxidization of mantle CH 4 on the way moving up toward the surface (-3000~0m). Like a quilt with cotton wad, the CO 2 gas field of Huangqiao is considered to cover over the underneath inorganic oil and gas. A deep seated oil and CH 4 gas field with a large reserves of more than one billion tonnes should be concealed under the CO 2 field of Huangqiao. The practical sense to build such a geochemical evolution pattern is that there should exist oil and gas fields below any CO 2 gas fields, but with different depths and reserves. It is not only a typical pattern summarised from the evolution of oil and gas resources of Huangqiao area, Jiangsu Province, but also has a general significance in the global scope. The evolution stage of the upper crust in this pattern indicates that the inorganic CO 2 gas field of Huangqiao area was not directly produced from the upper mantle, but was an inevitable result from oxidation of mantle CH 4 under oxidizing condition. Therefore, a CH 4 gas field or a condensated oil field, or both of them, should be found below the CO 2 gas field of Huangqiao. To search for the inorganic oil and gas deposits in Huangqiao area, the favourable site should be the space under the CO 2 gas field and at the depth between -5000m and -10000m. This paper suggests a three dimensional prospecting model for the inorganic oil and gas deposits in the unknown area, which is more economic and with higher efficiency.

江苏黄桥CO2 气田中的CO2 ,历来被认为是幔源CO2 。但最近的研究结果表明 ,这种CO2并非幔源CO2 ,而是幔源CH4上升至地表 (- 30 0 0m~ 0m)被氧化的结果。黄桥CO2 气田犹如一床棉被覆盖在无机油气上方 ,形成气被 ,其下就是储量巨大的凝析油和CH4气田。黄桥地区无机油气藏的找矿方向在其CO2 气田的下面深部 ,勘探重点放在地下 5 0 0 0~ 10 0 0 0m之间的构造富集的有利部位。研究提出了一种在未知区既较为经济、又能较大提高钻井成功率的无机油气藏立体勘查模型。

 
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