Effect of temperature on the thermal conductivity of a granite with high heat production from Central Portugal

Miranda, Mafalda Alexandra; Matos, C. S.; Rodrigues, Nelson; Pereira, Alcides; Costa, J.J.

doi:10.1007/s41513-018-0096-9

Cited by 9 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The T-related change of λ is more diverse for mafic rocks relative to felsic rocks. While most functions for felsic rock types follow more or less the same trend, the application of the function provided by Miranda et al (2019) results in a notably smaller reduction of λ compared to any other correction function. These authors measured the thermal properties of a granite exhibiting a moderate heat production of about 5 µW m −3 .…”

Section: Comparison Of Correction Functionsmentioning

confidence: 85%

“…With increasing depth, the p effect has generally a minor impact on λ compared to the T effect. Therefore, the p effect remains mostly unaccounted for in thermal modeling (e.g., Lemenager et al 2018;Miranda et al 2019). However, disregarding the p correction may give rise to an overestimation of T on the order of 20-30 °C at 7-10 km depth.…”

Section: Discussionmentioning

confidence: 99%

“…At those T, diffusion processes (the lattice or phonon thermal conduction) are typical for polycrystalline rocks exhibiting a decrease in λ with increasing T (Schatz and Simmons 1972;Beck 1988;Seipold 1992). This decrease in λ is variable, depending on rock type (e.g., Sekiguchi 1984;Zoth and Haenel 1988;Somerton 1992;Seipold 1998;Kukkonen et al 1999;Vosteen and Schellschmidt 2003;Miranda et al 2019). The p domain applicable to the crust covers values < 1 GPa.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Temperature and pressure corrections applied to rock thermal conductivity: impact on subsurface temperature prognosis and heat-flow determination in geothermal exploration

Norden

Förster

et al. 2020

Geotherm Energy

View full text Add to dashboard Cite

show abstract

Section: Comparison Of Correction Functionsmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Temperature and pressure corrections applied to rock thermal conductivity: impact on subsurface temperature prognosis and heat-flow determination in geothermal exploration

Norden

Förster

et al. 2020

Geotherm Energy

View full text Add to dashboard Cite

show abstract

“…Most of the works, including recent ones [8][9][10][11], are aimed at studying only the effect of temperature on the effective thermal conductivity of rocks. As a result, thermal properties of rocks at various depths of the earth's crust are estimated without taking into account rock pressure.…”

Section: Introductionmentioning

confidence: 99%

On the temperature and pressure dependences of the effective thermal conductivity of granites

et al. 2021

View full text Add to dashboard Cite

The results of experimental measurements of the temperature dependence of the effective thermal conductivity of various granite samples obtained by the absolute stationary method in the temperature and pressure ranges of 273- 523 K and 0.1-400 MPa, respectively, are analyzed. The power-law character of the temperature dependence of the effective thermal conductivity for all measured granite samples at atmospheric pressure is established. We have shown that pressure significantly affects the power law of the temperature dependence of the effective thermal conductivity of granite samples. A low-parameter description of the temperature-pressure behavior of thermal conductivity is proposed. A correlation is established between its components.

show abstract

Simulation of flow and heat transfer in high‐temperature and high‐pressure reservoir based on multi‐physical field coupling model at pore scale

Chen,

Sun,

et al. 2024

Can J Chem Eng

View full text Add to dashboard Cite

The use of irregular pore‐scale models to study heavy oil reservoirs with high‐temperature, high‐pressure, and high‐stress characteristics is effective. Previous studies have typically focused on regular models and conventional environmental reservoirs, with limited exploration of irregular models and reservoirs in extreme environments. In investigating the process of water displacing heavy oil within reservoirs under high‐temperature, high‐pressure, and high‐stress conditions at the pore scale, the utilization of the four‐parameter method creates a micro‐scale irregular porous media model. The model systematically considers the variation of physical properties of rocks and heavy oil with temperature. The results indicate that an appropriate increase in water injection rate or a decrease in reservoir contact angle will increase the recovery rate, temperature, and stress of the reservoir. At a displacement time of 0.3 s, with the water injection rate increasing from 0.004 to 0.01 m ∙ s−1, the reservoir's recovery degree experiences an increase of 0.091. Simultaneously, the average temperature and average stress of the reservoir increase by 29.66 K and 1.9464 × 109 N · m−2, respectively. At a displacement time of 0.3 s and with the contact angle decreasing from 2π/3 to π/3, the reservoir's recovery degree increases by 0.44537, and the average temperature and average stress of the reservoir increase by 2.87 K and 1.86 × 108 N · m−2, respectively.

show abstract

Effect of temperature on the thermal conductivity of a granite with high heat production from Central Portugal

Cited by 9 publications

References 26 publications

Temperature and pressure corrections applied to rock thermal conductivity: impact on subsurface temperature prognosis and heat-flow determination in geothermal exploration

Temperature and pressure corrections applied to rock thermal conductivity: impact on subsurface temperature prognosis and heat-flow determination in geothermal exploration

On the temperature and pressure dependences of the effective thermal conductivity of granites

Simulation of flow and heat transfer in high‐temperature and high‐pressure reservoir based on multi‐physical field coupling model at pore scale

Contact Info

Product

Resources

About