Main features:

1, "membrane nitrogen" technology is to raise the air to a certain pressure, filtered and dried to make the finger through a special film group. Nitrogen is separated from the air by the physical properties of different diffusivity in the membrane wall of the air in the air.

2, gas injection is a new technology of injecting nitrogen into high pressure and high purity nitrogen after further pressurization, and then injecting high pressure and high purity nitrogen into high pressure. It is mainly used for efficient oil recovery and oil field emergency repair.