| Abstract: | Karaha - Telaga Bodas geothermal system consists of: 1) a caprock, ranging from several hundred meters to 1600 m thick that is characterized by steep, conductive temperature gradients and low permeabilities; 2) an underlying vapor-dominated zone that extends below sea level; and 3) a deep liquid-dominated zone with measured temperatures up to 353??C. Heat is provided by a 3 km deep tabular granodiorite stock. The effective base of the reservoir is controlled by the stress regime‘s effect on fractures within volcanic rocks located above the brittle/ductile deformation boundary. The base of the caprock is controlled by the distribution of initially low-permeability lithologies above the reservoir; the extent of pervasive clay alteration that has reduced initial permeabilities; the distribution of secondary minerals deposited by descending waters; and by a downward change from a strike-slip to an extensional stress regime. Producing zones are controlled by both matrix and fracture permeabilities. |
| Genre: | Conference Paper |
| ProdID: | 70027748 |
| Citation Author: | Nemcok, M.; Moore, J. N.; Christensen, C.; Allis, R.; Powell, T.; Murray, B.; Nash, G. |
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| Citation End Page: | 412 |
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| Citation Language: | English |
| Citation Larger Work Title: | Transactions - Geothermal Resources Council |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Reservoir controling factors in the Karaha-Telaga Bodas geothermal field, Indonesia; 2005; Conference Paper; Transactions - Geothermal Resources Council; Nemcok, M.; Moore, J. N.; Christensen, C.; Allis, R.; Powell, T.; Murray, B.; Nash, G. |
| Citation Start Page: | 407 |
| Citation Volume: | 29 |
| Citation Year: | 2005 |
| Type: | citation/reference |
| Text: | Reservoir controling factors in the Karaha-Telaga Bodas geothermal field, Indonesia; 2005; Conference Paper; Transactions - Geothermal Resources Council; Nemcok, M.; Moore, J. N.; Christensen, C.; Allis, R.; Powell, T.; Murray, B.; Nash, G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 2005 00:00 -0600 |
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