Sirius Petroleum Software

Oil Recovery for Windows

The OilRec program generated the following graphs using an example file supplied with the program. In this example, the PVT data and production data and historical pressure data was specified for a pseudo-well that includes all the production for the pool. The example was taken from Dake,

More.

 

This is a graph of Well Cumulative Oil Production versus Time. Note that the slope is approximately linear, indicating a near constant rate production rate.

 

This is a graph of the well Cumulative GOR versus Time. Note that the cumulative GOR increases dramatically as the reservoir pressure further declines below the bubble point.

 

This is a graph of the History Pressure versus time. Note that the measured reservoir pressure declines.

 

This is a graph of the History Pressure versus the Material Balance Pressure. Note that most Material Balance Pressure points are very close to the History Pressure points. This means that the correct IOIP was determined. In this case, the IOIP that best matches the given data is at N=120.1 MMSTB.

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