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Titill:
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Interpretation of geochemical well test data for wells OW-903B, OW-904B and OW-909 Olkaria Domes, KenyaInterpretation of geochemical well test data for wells OW-903B, OW-904B and OW-909 Olkaria Domes, Kenya |
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Höfundur:
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Malimo, Sylvia Joan
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Jarðhitaskóli Háskóla Sameinuðu þjóðanna
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URI:
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http://hdl.handle.net/10802/23719
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Útgefandi:
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United Nations University; Orkustofnun
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Útgáfa:
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2010 |
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Ritröð:
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United Nations University., UNU Geothermal Training Programme, Iceland. Report ; 2009 : 17 |
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Efnisorð:
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Jarðhiti; Borholur; Olkaria (Kenya); Kenía
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ISSN:
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1670-7427 |
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Tungumál:
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Enska
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Tengd vefsíðuslóð:
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http://www.os.is/gogn/unu-gtp-report/UNU-GTP-2009-17.pdf
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Tegund:
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Bók |
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Gegnir ID:
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991010551919706886
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Athugasemdir:
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Í : Geothermal training in Iceland 2009, bls. 319-344
Myndefni: gröf, töflur. |
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Útdráttur:
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Three wells from the Domes field were allowed to discharge for 3 months in early 2009. This report describes the chemical composition of the fluids from these wells, OW-903B, OW-904B and OW-909. Downhole temperatures range from 250 to 350oC which agree with the solute and gas geothermometers. The wells produce fluids with high pH; deep fluid pH ranges from 6.9 to 8.3. OW-909 has higher values for deep fluid TDS, pH and concentrations of anions (B, Cl, F), Na and K than OW-903B and OW-904B. Olkaria Domes wells have a sodium bicarbonate water type similar to those in Olkaria West and Olkaria Central fields. Concentrations of most dissolved constituents were initially low but increased with increasing enthalpy, a considerable range is observed in concentrations. Deep fluids appear to be close to equilibrium with quartz and calcite. Very low Ca concentrations suggest that calcite scaling will not be a problem in the utilization of the Olkaria Domes geothermal fluids. |
