Surveillance Analysis

With surveillance analysis, you can create a Hall plot and voidage replacement ratio (VRR) analyses. The Hall plot is a simple tool to analyze steady-state flow at an injection well. The VRR analysis aids in identifying parts of a field where increased or decreased amounts of water or gas must be injected in order to reach or maintain VRR targets. In order to generate meaningful results, the well must contain injected water volumes and injecting tubing pressures. Optionally, the well should also contain "time on injection".

Note:   Surveillance analysis is available with an IHS DeclinePlus license.

These items apply to the surveillance analysis:

• Creating a Hall Plot
• Creating a Hall Plot in the Diagnostics Data Viewer
• Creating a VRR Analysis
• VRR Parameters
• Comparing Pattern VRRs
• Surveillance Analysis Theory