Shale gasGas desorptionNumerical simulationProduction analysisGas production from shale reservoirs has increased rapidly in the past decade, becoming an important source for natural gas supply. For tight shale formations, horizontal wells combined with multi-stage hydraulic fracturing is the key to realize...
Without it,3 on our planet would be very low.Plants use the sunlight and take up the CO, in the atmosphere to produce energy and oxygen.This 4 is called photosynthesis.The gas is _5 produced when fossil fuels are burned. Carbon dioxide that has been stored for millions of years in ...
A. the water could be frozen B. the natural gas or oil is produced C. the temperatures are low and the pressure is high D. there is a sea with warm climate like the South China Sea 相关知识点: 试题来源: 解析 C 答案C 解析 细微环节理解题。依据其次段中的“Itcanexistonlyinconditions...
In addition, what impresses the customers most is that not only the quality of the clothes is reliable but the prices are reasonable and affordable.On top of that, if there is no damage to the clothes and they are preserved in good con...
Lowering emissions by 20% may not seem like a big deal, but moving vast amounts of goods back and forth on the high seas creates 3% of the world's greenhouse gas emissions. That's more than the airline industry, which produced about...
How is methane produced from organic matter? Methane is released in to the atmosphere during the extraction of fossil fuels such as oil, coal and gas, as well as from natural gas pipelines. Methane is also produced at landfills or rubbish tips, as organic rubbishdecomposes underground inthe abs...
But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil(化石fuels. As we use up our fossil fuel supplies, we might be able ...
natural gas,especially when the volume is large.But the cost of construction and maintenance requires a large amount of investment.Air freight is used for goods where the higher cost of transport by air gives way to other considerations.For example,speed is the most important factor for the ...
题目What is the single most effective way to reduce greenhouse-gas emissions?Go vegetarian(素食)?Replant the Amazon?Cycle to work?None of the above.The answer is:make air-conditioners better.On one calculation,replacing refrigerants(制冷剂) damaging the atmosphere would reduce total ...
In some cultures, the old age is more valued, while in some cultures the youth is more valued. Discuss both views and give your opinion. 11月2日 Task 1 柱状图 Task 2 The world of work is changing so fast that e...