煤层气储层地质特征与物理特征的区别是什么?

谁知道Tscf是什么单位?
原文：在美国,煤层气藏与页岩气藏的天然气年产量接近2 ． 7 T s c f ,占总天然气产量的1 5 ％.其中约1 ． 7 T s c f 产 自至少二十个不同盆地的4 0 0 0 0 多口煤层气井.
自己找到了：
scf(标准立方英尺)
scf是“Standard cubic feet”的缩写,意思为“标准立方英尺”.是国外天然气行业的常用单位.
Tscf为“万亿标准立方英尺”.

能燃烧的能源,
热能、机械能、光能、电能原油、天然气、煤层气、水能、核能、风能、太阳能、地热能、生物质能等一次能源和电力、热力、成品油等二次能源,以及其他新能源和可再生能源、波浪能、海流能.原子核能、地热能,电力、煤气、汽油、柴油、焦炭、洁净煤、激光和沼气等能源都属于二次能源.海洋能生物能石能,
※这个其中选

病句修改b非常规天然气主要包括页岩气、致密气、煤层气和天然气水合物等,基本组成相同,是化石燃料中
较清洁的能源c4-6月,***cpi同去年相比,同比上涨6.3%,涨幅比1-3月回落0.4个百分点,但仍比去年同期高1.7个百分点 那个对,错在哪

地质和煤层气方面英语翻译3，大家帮下忙，在线翻译不行
Methods
High-pressure methane adsorption isotherms at 308C were collected using a volumetric apparatus. Instrument design is based on the volumetric adsorption apparatus described by Mavor et al. (1990). Samples were equilibrated with moisture for at least 48 h prior to analysis. Pressure points were collected up to about 10 MPa (absolute) for each sample. Volumes of gas adsorbed are calculated using the Real Gas Law equation of state, and the void volume of the system, determined through helium expansion, is corrected for gas adsorbed onto pore walls at each pressure step, assuming liquid density of the adsorbate. Precision of isotherm runs is about "1% relative.
The gas sorption isotherms in coal were modeled using the Langmuir isotherm:
(1)where P is the equilibrium gas or vapor pressure; V is the volume of gas adsorbed,
commonly reported at standard temperature and pressure (STP) per unit mass of coal,V is the Langmuir monolayer volume, and B is an empirical constant.
Low-pressure (0.127 MPa) carbon dioxide isotherms at 0℃ were obtained on dry
（evacuated）coal samples on a Micromeritics ASAP 2010w automated volumetric gas
sorption apparatus. Coal samples were evacuated at 100℃ overnight to a pressure of
-0.25 Pa prior to analysis. No non-ideality correction was made for carbon dioxide at
these low pressures. A saturation vapor pressure of 3.48 MPa was used for carbon
dioxide at 273 K and 6.42 MPa at 298 K. Precision of isotherm runs for coal is about
"1% relative. The instrument is periodically calibrated against a zeolite standard to
check for systematic error. Carbon dioxide low pressure isotherms were used to
calculate surface areas and micropore capacities using the Dubin–Raduskovich equation.
Canister desorption of representative coal bench samples were determined following standard procedures （Australian Standard 3980, 1991）. Canister analyses were carried out on samples as representative as possible of the different compositionally homogeneous coal benches.
In-situ permeability analysis of the major coal seams was performed following the
procedures of Koenig et al. （1992)and Enever（1995）.
Mineral matter content of the coals was calculated from the ash yield using the Parr formula.
3. Results and discussion
3.1. General considerations—role of moisture and temperature
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