EORServices

EOR

 

What is EOR?

Paul and Willhite (1998) describe EOR as the process of injecting one or more than one fluids which are not present in the reservoir to increase the production of residual oil or remaining oil after primary and secondary recovery. These injected fluids sometimes also assist the primary energy in the reservoir. The injected fluids interact with the rock-oil system physically or chemically to maximize the recovery of oil.

 

IOR (Improved Oil Recovery) is often mistaken to be a term identical to EOR. Although, IOR includes all the processes which come under EOR, it is more of a holistic term which includes all the other methods which improve the recovery of oil in any way. Hence, IOR will also encompass processes such as Hydraulic Fracturing or Infill Drilling to name a few.