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Enhanced oil recovery Services

ZJ designs, develops and provides chemically enhanced oil recovery (CEOR) technologies that increase the effectiveness of oil field water flooding and improves oil recovery. ZJ processes have been successfully applied in oil producing formations in China since 1998, at the most critical oil field conditions. This has resulted in additional production of 50 -120 tonnes of oil per tonne of polymer applied. For Sinopec this has resulted in more than 10 million barrels of incremental oil.

This includes product selection, reservoir evaluation, project evaluation, production and facilities design, engineering assessment, well placement and construction, plan evaluation, etc.

Products performance improvements

Customers’ special conditions and our R&D support to improve our existing products for performance.

  • High Viscosity
  • Recovery efficiency
  • Dissolution ability
  • Shear resistance
  • Temperature resistance
  • Economy
  • Long-term stability
  • Compatibility of the reservoir
  • Salinity resistance
  • Thermal stability

Products applications/selection

Work with customers to make sure the most suitable products had been selected to reach the optimistic result.

  • Polymer performance evaluation methods
  • Customer training on testing
  • Troubleshooting/Consulting for field injection
  • Performance following up/adjustment


Our lab had been rated as Chinese national certified lab for EOR analysis.

Polymer evaluation for EOR

  • Molecular weight
  • Viscosity
  • Hydrolysis degree
  • Filtration
  • Dissolution/Etc.



  • Inject ability
  • Shear condition
  • Long term stability
  • Core flooding test
  • Polymer behavior in different Salinity/Etc.

Other Services

Customers tailored systemic solutions can make sure the appropriate application of PAM, and to provide customers with specialized advice and services according to specific situations.

Project Evaluation , Reservoir viability, Optimize polymer selection, Pilot Test, Full field implementation.

“We help our customers with a wide range of services and products. Starting from Preliminary screening, Project Evaluation, Reservoir friability study, Optimize polymer selection, Pilot Test, and Full field implementation. “

Please contact us for complete services in polymer flooding projects.