CNPC Great Wall Drilling Engineering Co., Ltd., established on 2008-07-18, Business scope includes contracting and its strength,scale,Foreign engineering projects that are compatible with performance;Dispatch foreign laborers to implement the above-mentioned overseas projects;oil,natural gas,Coalbed methane exploration and development and process reservoir geology,Geophysical prospecting,drilling,Logging,Mud logging,well test,Workover,Cementing,Completion,Technical services for underground operations and other projects;Detection and treatment of industrial solid waste, waste liquid and waste chemicals in oil and gas fields(Does not contain hazardous waste);Recycling and Wholesale of Recycled Materials;Construction General Contracting,Professional contractors,Labor subcontracting;project costs;Technical extension services;Repair machinery and equipment;technology development,technical consulting,Technical Services;Sales of special oil equipment and equipment,Labor protection supplies,Chemical Products(Does not contain dangerous chemicals and a class of precursor chemicals);Warehousing Services;Petroleum special equipment testing;Petroleum Professional Training;Equipment Leasing;Information Consulting;Import and export,Technology Import and Export,Agent import and export;Office space for rent;lease commercial premises;The following items are limited to branch offices in other cities:Manufacture of special equipment for environmental protection;Manufacture of special machinery for water resources;Manufacture of special equipment for oil and gas drilling and production;Oil drilling tools and accessories,Oil and gas drilling equipment parts processing,repair,lease,Sales;Engineering survey and design;Sell lubricants,asphalt.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)