Chemical Stimulation Treatment of a Well in the Beowawe Geothermal Field
- Key words
- Well Completion; Reservoir Engineering; Drilling; USA; Nevada; Beowawe; Acidizing; Stimulation; Well Tests; Injection Test
- Location
- Beowawe, Nevada
- Conference
- Geothermal Resources Council Transactions
- Year
- 1984
- Session
- Well stimulation; Acid stimulation; Injection
- Language
- English
Abstract
A chemical stimulation treatment was performed in a geothermal well located in the Beowawe Field, Nevada. The stimulation experiment designed for Rossi 21-19 was a two stage acid treatment using an HC1 acid solution in the first stage and an HC1-HF acid solution in the second stage. Each of these acid stages was displaced deep into the formation with water. The acid solutions were intended to increase the near wellbore permeability in existing reservoir flow channels by reacting wit secondary mineralization, dispersing drilling mud residue, and/or etching the fracture faces. The treatment was confined to the interval 4,417-7,212 feet which is completed with a slotted liner. Injectivity tests indicated that a 2.2 fold increase in injectivity was achieved with the second stage.
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