Publication Date:
2022-10-28
Description:
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
Description:
Published
Description:
105477
Description:
2IT. Laboratori analitici e sperimentali
Description:
JCR Journal
Keywords:
Geothermal water
;
Inter-laboratory test
;
Geothermal system
;
Los Azufres
;
Geochemical modeling
;
Uncertainty propagation
;
NIST Uncertainty machine
;
05.04. Instrumentation and techniques of general interest
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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