Applying Flowrate Type Curves to Geysers Steam Wells
Conference
·
OSTI ID:888494
Dimensionless flowrate type curves were applied to steam wells at The Geysers in an attempt to quantify reservoir properties and to predict flowrate decline. Although data scatter was a problem, the flowrate data was smoothed by a normalization routine based on the back-pressure equation and the wells were modeled by dimensionless functions for a radial system with a infinite or finite outer boundary and a constant pressure inner boundary (composite analytical-empirical type curve). The “match” resulted in a unique D{sub i} value for use in Arps’ equation and a permeability-thickness product (kh) comparable to kh values obtained from pressure buildup analysis. Finally, it was shown that at least four years of data is required to obtain a unique b value. 2 tabs., 12 refs., 12 figs.
- Research Organization:
- Northern California Power Agency, Bear Ridge Road, The Geysers
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AT03-80SF11459; AS07-84ID12529
- OSTI ID:
- 888494
- Report Number(s):
- SGP-TR-109-6
- Country of Publication:
- United States
- Language:
- English
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