Andreas Hartmann
Baker Hughes
44 Papers
357 Citations
Andreas Hartmann is an academic researcher from Baker Hughes. The author has contributed to research in topics: Geothermal gradient & Borehole. The author has an hindex of 12, co-authored 44 publications. Previous affiliations of Andreas Hartmann include RWTH Aachen University & University of Bremen.
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Papers
Thermal conductivity from core and well log data
TL;DR: The relationship between thermal conductivity and other petrophysical properties has been analyzed for a borehole drilled in a Tertiary Flysch sequence in this paper, where the authors established equations that permit them to predict rock thermal conductivities from logging data.
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Inversion of marine heat flow measurements by expansion of the temperature decay function
TL;DR: In this article, the model equations are expanded using a first-order Taylor series to overcome the difficulty of direct inversion of the thermal sediment parameters, and an iterative scheme is used to invert the temperature decay for undisturbed temperature and thermal conductivity of sediment.
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Inversion of marine heat flow measurements by expansion of the temperature decay function
TL;DR: In this paper, a first-order Taylor series is used to invert the temperature decay for undisturbed temperature and thermal conductivity of the sediment in marine heat flow data.
Petrophysical analysis of regional-scale thermal properties for improved simulations of geothermal installations and basin-scale heat and fluid flow
TL;DR: In this article, the authors proposed a three-step procedure with increasing complexity for analysis of the data set: first, univariate descriptive statistics provides a general understanding of data structure, possibly still with large uncertainty.
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Uncertainties and shortcomings of ground surface temperature histories derived from inversion of temperature logs
Andreas Hartmann,Volker Rath +1 more
TL;DR: In this article, the most prominent sources of uncertainty are identified and analyzed for the last 1000 to 100000 years of the borehole temperature data and the maximum depth of the temperature log required for an optimal inversion.
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