Associatednaturalgas widely exists in brine Wells in Penglai Salt Mine, but the output differs a lot.
伴生天然气在蓬盐矿山各卤井中普遍存在，但产量差别很大。
2
It also analyzes the feasibility of exploiting the natural brine and associatednaturalgas, and puts forward the exploiting technical scheme.
并对该井开采天然卤水及伴生天然气进行了可行性分析，提出了开采技术方案。
3
Coal, by contrast, is associated with a much smaller methane release during mining; but burning it produces about twice as much CO2 as burning naturalgas.