Using dry nitrogen to pressure test a system is a very effective method of verifying a system is leak-free. In fact, I believe it is more reliable than using a standing vacuum test typically performed ...

Coal and gas outburst is one of the geological disasters that seriously threaten the safety of coal mines production. In recent years, with the increase of mining depth, outbursts become frequent. To ...

The study of laboratory conditions shows that gas flooding has the mechanism of reducing interfacial tension and improving the physical properties of crude oil, so as to achieve the purpose of ...