Clients

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Qualifications of Harry L. Chang

 

Clients

• China National Offshore Oil Company (CNOOC)
• China National Oil Corporation (CNPC), now known as PetroChina
• Intera, an international consulting company in Austin, Texas, USA
• Atlantic Richfield Company (ARCO), in Shekuo, China
• British Petroleum (BP) in Shekuo, China
• Schlumberger, an international service company in oil and gas businesses
• Tiorco, an international oil field service company
• Innovative Petrotech Solutions (IPS), in Illinois, USA
• Total, a French international oil company
• Cairn Energy India Pty. Ltd (CEOR Development Plans)
• North Rich Corporation, in Duncanville, Texas, USA (EOR Potential Evaluation)
• Energy Spectrum, in Dallas, Texas (EOR Potentials)
• Energy Spectrum, in Dallas, Texas (EOR Potentials)
• Dove Energy, in Yemen (Polymer Flooding)
• MEDCO, in Indonesia (Surfactant-Polymer) (Name?)
• Petroleum Development Oil (PDO), in Oman (ASP?)
• Daqing/Dagang/Shengli/Karamay Oilfields, in China (Polymer, ASP, and Gel applications)
• Beijing Hengju, China
• Compañía Española de Petróleos (CESPA), in Spain
• Canadian Natural Resources Limited (CNRL), in Canada
• Mansarovar, Colombia
• Tullow Uganda, UK
• Xcite Energy, UK