Improved Method for Decline Analysis of Dry Steam Wells
- Key words
- Dry steam well, output curve, deliverability, Darajat
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 22. Reservoir Engineering
- Language
- English
- Paper number
- 2275
Full text
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Abstract
This paper describes the application of a new method developed by Acuna (2008) to calculate production decline in dry steam wells. It provides an alternative way to reconstruct the reservoir pressure history of wells using flow rate and wellhead pressure variation with time. The formulation presented here can be used to predict well decline and normalized well deliverability over time. Given that the method accounts for well PI and wellbore friction losses, it is possible to calculate variations of these parameters with time. The analysis can help diagnose problems in wells. An example of a well in the Darajat field, Indonesia is used to demonstrate this technique.
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