Chapter 6 Summary and Analysis

Retrieving oil is a complicated process. Once oil is actually discovered, there are numerous complex steps involved in the development and production cycle of oil. The amount of oil in place is first estimated, followed by an estimation of the actual recoverable amount. This process is followed by the calculation of the field's production rate and depletion curve. Once these statistics are determined, production begins and the estimates are then adjusted based on actual performance data. When primary recovery is complete, a variety of technologies are employed for secondary and tertiary recovery. Making accurate estimates about the amount of recoverable oil in a reserve is difficult and is not an exact science. Techniques used in retrieving oil, such as water injection, in addition to the long-term production levels of a given well, can greatly impact the amount of oil eventually recovered...