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Authors: | Verma, Mahendra P* Izquiedo, Georgina* Barth, Johannes A C* Rayes-Delgado, Lisette* Chandrasekhar, Trupti* Algabre, Julienne Eve* Caballero, Marianne Antonette C* Godoy, Jose Marcus* Sanchez, Mayela* Brusca, Lorenzo* Malimo, Sylvia* Monvoisin, Gael* Kretzschmar, Thomas* Villanueva Estrada, Ruth Esther* Armienta, Maria Aurora* De Silva, Nimal* |
Title: | Interlaboratory test for chemical analysis of geothermal fluids: A new approach to determine deep geothermal reservoir fluid composition with uncertainty propagation | Journal: | Applied Geochemistry | Series/Report no.: | /147 (2022) | Publisher: | Elsevier | Issue Date: | 2022 | DOI: | 10.1016/j.apgeochem.2022.105477 | Keywords: | Geothermal water Inter-laboratory test Geothermal system Los Azufres Geochemical modeling Uncertainty propagation NIST Uncertainty machine |
Subject Classification: | 05.04. Instrumentation and techniques of general interest | Abstract: | A representative fluid sampling of surface geothermal manifestations and its analytical data quality assurance and quality control (QA/QC) are challenging aspects of understanding the geothermal reservoir processes. To achieve these goals, an interlaboratory test for the chemical analyses of ten water samples: one synthetic water, two lake waters (i.e., duplicated), one stream water, and six water samples from two geothermal wells of Los Azufres Geothermal field (LAGF), Michoacan, Mexico, was conducted. The geothermal wells were sampled at four points: (1) total discharge of condensed fluid at the wellhead, (2) separate liquid condensed in the well separator, (3) flushed liquid at the weir box, and (4) separated vapor condensed at the well-separator (data taken from Verma et al., 2022). Sixteen laboratories from ten countries reported their results. The pH, electrical conductivity, Ca2+, Li+, SO4 2 B, and Si-total measurements were 8.35 ± 0.04, 12.25 ± 0.53 mS/cm, 25 ± 1 mg/l, 18 ± 1 mg/l, 569 ± 33 mg/l, 320 ± 21 mg/l, and 20.5 ± 0.7 mg/l, which are close to the conventional true values, 8.40, 12.31 mS/cm, 23 mg/l, 19 mg/l, 647 mg/l, 330 mg/l, and 20.0 mg/l, respectively. Analytical errors for major ions, Na+, Cl |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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Interlaboratory test App Geochem 2022.doc | submitted manuscript | 1.73 MB | Microsoft Word | View/Open |
AP 2022.pdf | Restricted Paper | 7.99 MB | Adobe PDF | View/Open |
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