Associated natural gas 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。

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It also analyzes the feasibility of exploiting the natural brine and associated natural gas, 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。

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Coal, by contrast, is associated with a much smaller methane release during mining; but burning it produces about twice as much CO2 as burning natural gas.

与之相反，在煤炭的开采中甲烷释放要少的多；但燃烧煤炭所产生的CO2比燃烧天然气所释放的CO2多出2倍。

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Anderson had already put Panenergy through that transformation by acquiring Associated Natural Gas, a trading company, two years before.

FORBES: Trading places

Anderson had already put Panenergy through that transformation by acquiring Associated Natural Gas, a Denver trading company, two years before.

FORBES: Trading Places

Iraq's wells, unlike many Kuwaiti ones, are often associated with natural gas, which complicates matters.

ECONOMIST: Will Saddam Hussein sabotage his own oil wells?