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natural gas
Deep-seated gas is defined in this paper as natural gas generated under the combined action of high temperature, high pressure, and environment media.
      
As to organic matter vertical evolution, deep-seated gas is natural gas, which is generated and deposited under the position of an oil generation window.
      
The modeling of carbon isotope kinetics and its application to the evaluation of natural gas
      
The modeling of carbon isotope kinetics of natural gas is an issue driving pioneering research in the oil and gas geochemistry in China and internationally.
      
Combined with the sedimentary burial history and basin geothermal history, the modeling of carbon isotope kinetics provides a new and effective means for the determination of the origin and accumulation history of natural gas pools.
      
In this paper, we introduce themodeling of carbon isotope kinetics of natural gas formation and its applications to the assessment of natural gas maturity, the determination of the gas source, the history of gas accumulation, and the oil-gas ratio.
      
The carbon isotopic characteristics of natural gas are not only affected by the gas source and maturity of the source rock, but also are related to the accumulation condition and geothermal gradient in a basin.
      
Meanwhile, a multi-functional energy system (MES) that consumes coal and natural gas as fuels simultaneously, and co-generates methanol and power, has been presented.
      
In the MES, coal and natural gas are utilized synthetically based on the method of dual-fuel reforming, which integrates methane/steam reforming and coal combustion.
      
Life cycle analysis and choice of natural gas-based automotive alternative fuels in Chongqing Municipality, China
      
The objective of this study is to carry out an economic, environmental and energy (EEE) life cycle study on natural gas-based automotive fuels with conventional gasoline in an abundant region of China.
      
A set of indices of four fuels/vehicle systems on the basis of life cycle are assessed in terms of impact of EEE, in which natural gas produces compressed natural gas (CNG), methanol, dimethylether (DME) and Fischer Tropsch diesel (FTD).
      
The study can be used to support decisions on how natural gas resources can best be utilized as a fuel/energy resource for automobiles, and what issues need to be resolved in Chongqing.
      
Chemical conversion of natural gas hydrates upon mechanical activation
      
Diffusive dispersion of natural gas hydrates in ocean sediments
      
It was found that, in this case, the molar mass of natural gas increased, whereas that of associated petroleum gas decreased.
      
The structure of gasdynamic flow in a supersonic separator of natural gas
      
Results are given of calculations of flow within the two-dimensional Euler model of supersonic swirling flow of gas in a supersonic separator of natural gas.
      
Data on water photolysis in a natural gas exposed to VUV radiation with λ=172 nm are presented.
      
Interfering effects of some elements on the determination of lanthanum as LaO in a natural gas-air flame by laser-enhanced molecular ionization spectrometry were studied.
      
 

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