Applied in Drilling

Ø Nitrogen foam liquid drilling can be applied in under balanced drilling and balance pressure drilling;

Ø Nitrogen foam liquid drilling is especially good for applying in low pressure, low permeability oil layer;

Ø Prevent some dangerous such as blasting and burning;

Ø Pollute the oil layer very little, especially under negative pressure condition, the pollution can be neglected;

Ø Nitrogen foam liquid drilling is faster than the ordinarily mud drilling.