The Krafla Project: Technical Features and Operating Experience
- Key words
- General; Iceland; Krafla; Liquid Dominated; Geology; Volcanics; Production Wells; Geochemistry; Operating Systems; Operating Designs; Separators; Field Management; Flash Plants; Well Completions
- Location
- Krafla, Iceland
- Conference
- Geothermal Resources Council Transactions
- Year
- 1981
- Session
- Liquid dominated reservoirs; Volcanism; Drilling; Geochemica
- Language
- English
Abstract
Outlined are the complex geophysical and geochemical characteristics of the Krafla Geothermal field, which is highly influence by the close proximity of entrapped magma associated with current rifting and volcanic activity taking place within a few km or the plant. The plant which has two 30 MW turbine/generator units, one already commissioned the other scheduled for completion 1984, is described with emphasis on operational features. Drilling and well completion features are presented with emphasis on problem areas characteristic to , though probably not singular to Krafla. Outlined is the use of very long geofluid collection pipelines featuring the corrosion preventative washing of superheated geothermal steam using a low steam fraction geofluid. The use closely coupled hp/lo flasher separator units is also described. Emphasis is throughout place on operational features of the plant and the experience gained in its operation on part load.
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