Business scope: Unblock,
Downhole Operation,
Chemical Products,
Harmless Treatment Of Mud,
Oil Production Engineering Technical Services,
Profile Control,
Nitrogen Injection Technology Service,
Inspection And Testing Service,
Environmental Engineering,
Oil And Water Well Testing Technical Services,
Machinery And Equipment Leasing,
Chemical Auxiliary Sales,
Import And Export,
Technology Import And Export,
Activities Supporting Oil And Gas Extraction,