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