Ø        Adopt the most advanced PRISM membrane separation nitrogen producing arts and techniques in the world;

Ø        Base on Omen, North Bench cross country truck as platform;

Ø        All the device are fixed on a truck;

Ø        Make the specially designing to meet the requirements of oilfield frequently changeable working spaces, such as oilfield decentralizing wellsite, working spaces with great climate changing, dampness, bad traffic conditions, lack of water sources, etc.