The Chemical Enhanced Oil Recovery (EOR), also referred to as Improved Oil Recovery (IOR), is an advanced technique used to maximize extraction from mature oil reservoirs. Unlike primary and secondary recovery methods, which rely on natural pressure or water injection, chemical EOR involves injecting specialized chemicals into the reservoir to improve oil mobility and sweep efficiency.

The global chemical EOR market is growing steadily, driven by the need to boost production from aging oil fields. Commonly used chemicals include polymers, surfactants, and alkalis, each tailored to enhance fluid properties and improve recovery rates. Countries in the Middle East, North America, and Asia-Pacific are leading adopters due to their large mature oil reserves.

Rising energy demand, coupled with limited discovery of new reserves, has fueled investment in EOR technologies. As oil producers seek to extend the life of existing fields, tertiary oil recovery, polymer flooding, surfactant injection, chemical EOR methods, improved oil recovery techniques and maximize output, chemical EOR continues to gain traction as a cost-effective and efficient solution.