OWC stands for Oil Water Contact.

In reservoir engineering, the OWC is a critical geological feature that marks the boundary between the oil zone and the water zone within a reservoir. It is the lowest point where oil can be found within the reservoir.

Here's how OWC is used in reservoir engineering:

• Reservoir Characterization: Identifying the OWC helps determine the size and shape of the oil reservoir. It plays a crucial role in estimating the original oil in place (OOIP), which is essential for economic evaluation.
• Production Optimization: The OWC defines the vertical extent of the oil zone, guiding the placement of production wells and maximizing oil recovery.
• Waterflood Planning: Waterflooding is a common technique to enhance oil recovery, and understanding the OWC is vital for planning and monitoring the waterflood.
• Reservoir Simulation: The OWC is a crucial input parameter for reservoir simulation models, which are used to predict reservoir performance and optimize production strategies.
• Reservoir Management: By monitoring the movement of the OWC over time, engineers can assess the effectiveness of production strategies and identify areas where additional interventions might be required.

In summary, the OWC is a vital piece of information in reservoir engineering. It helps characterize the reservoir, optimize production, plan waterflooding, and monitor the performance of the reservoir over time.