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The helium (He) contents of the Weiyuan and Anyue gas fields in the Sichuan Basin (China) differ significantly despite their similar helium‐nitrogen (N2) coupling characteristics, that is, the positive correlation between the N2 and He contents, and the negative correlation between the nitrogen/helium (N2/He) ratio and depth. To determine the factors influencing the differential enrichment of He resources...
In order to study the subsidence characteristics, temporal–spatial variation, and their controlling factors of the Pearl River Mouth Basin, we have calculated and mapped 34 wells' subsidence via 1‐D backstripping method, from which 12 typical wells have been selected as a sample to compare. Three typical profiles also have been chosen to compile subsidence evolution profiles by 2‐D backstripping method...
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