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MulT_predict - An optimised comprehensive multicomponent geothermometer
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DOI：10.1016/j.geothermics.2022.102548.png)
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In this study, we introduce MulT_predict as a fully integrated solute multicomponent geothermometer, combining numerical optimisation processes for sensitive parameters to back-calculate to chemical reservoir conditions. This results in a state of the art geothermometer, providing an accurate reservoir temperature estimation validated by geothermal borehole measurements on a worldwide scale. In addition, a universally valid mineral assemblage for an unknown reservoir composition is developed, focusing on worldwide applicability. Using the evolved methodology, the limits of the optimisation processes are determined by using a synthetic brine (150 degrees C, pH 6, aluminium concentration 0.003 mmol/l) and successively perturbing its geochemical equilibrium state. Individual back-calculation of reservoir conditions lead to valid temperature estimations of 145 degrees C, 3.4% lower than the initial temperature while a simultaneous and interdependent optimisation reconstructs the sensitive parameters even more precisely with a deviation of 0.056 for the initial pH value, and 0.164 mu mol/l for the aluminium concentration
Keyword:
MulT_predict
Multicomponent geothermometry
Reservoir temperature estimation
Universally valid mineral set
Benchmarking
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IF:
3.9
论文数:
3.0K
被引数:
9.3K
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