Sinopec Huadong Oilfield Service Corporation

International Industry Category: Mining

International Industry Major Class: Oil and gas extraction industry

International Industry Middle Class: -

International Industry Sub Class: -

drilling、 Well Logging、 Mud logging、 Perforation、 cementing、 Directional、 Drilling、 Pre-drilling engineering、 salvage、 drilling fluid、 Oilfield chemicals、 Well Control、 Top drive、 pipes、 Casing、 Well Completion、 Oil testing、 Gas test、 acidification、 fracture、 Coiled Tubing、 Well testing、 Well repair、 test、 Ground measurement、 Water blocking、 Gas injection and other petroleum engineering technical services and technical consulting； Technology promotion services； Wellbore engineering design、 construction、 Technical Services； Wellbore engineering technology research； Petroleum engineering equipment、 pipes、 Mechanical processing、 Repair and maintenance； Machinery and equipment rental； Petroleum Engineering Technology Research； For land、 Providing technology for offshore oil and gas extraction、Labor Services； Information System Design、 integrated、 Operation and maintenance； Data processing and storage services； Electronic equipment production、 repair、 Sale； Network Engineering、Information Technology Consulting； Intelligent building engineering construction； Comprehensive geological research on petroleum and other mineral resources； Reservoir Characterization Research and Development； Environmental pollution control； Environmental Engineering、 Construction and operation of energy-saving projects； car rental； General cargo loading and unloading； Camping house manufacturing、 Sales and Repair； food、 Department Store Retail； Graphic production、 print； Property Management； General warehousing； Housekeeping service； Conference Services； Ticketing Agent； Petroleum Engineering Supervision； Sales of machinery and equipment； Energy mineral geological exploration、 Solid mineral geological exploration； Geological exploration technical services； Contracting overseas oil projects、 Natural gas engineering、 Highway Engineering、 Steel structure engineering、 Implementation and subcontracting of power projects and domestic and international bidding projects； Import and export business of various commodities and technologies related to the above business, whether self-operated or acting as an agent； Home appliance sales and repair services； Providing labor services。（ General freight transport by road， Dedicated cargo transportation（ Tank type）， Large object transportation（ Category 1）， Second-class car repair（ truck）； Dinner service。 The operations in brackets are limited to branches that have obtained permission）。（ Projects that require approval according to law， Business activities can only be carried out after approval from relevant departments）

Chinese Industry Category: Mechanical equipment

Chinese Industry Major Class: General equipment manufacturing

Chinese Industry Middle Class: General parts manufacturing

Chinese Industry Sub Class: Fasteners, seals and spring manufacturing