Assignment Instruction: Improved recovery, in the context of this assignment, refers to processes that supplement natural reservoir drive mechanisms. These processes are generally grouped into two main categories: - secondary recovery, which includes waterflooding and immiscible gas injection
- enhanced oil recovery (EOR), which includes miscible, chemical and thermal methods.
Although individual processes vary widely in type and applicability to particular conditions, they have one objective in common: to improve the displacement efficiency of hydrocarbons from the reservoir.
In this assignment, you will review the performance of the Upper/Middle Sands under primary depletion and conduct a preliminary waterflood screening, including a pilot flood to serve as a field trial of the process. The reservoir has been on production for just over one year. There are currently 15 active wells.