Method for determining the thermal conductivity of in situ formation rock using drilling cuttings

doi:10.1063/5.0051586

CIOMP OpenIR

	Method for determining the thermal conductivity of in situ formation rock using drilling cuttings
	F. Yi; X. P. Qi; X. X. Zheng; H. Z. Yu; W. M. Bai and H. B. Bao
	2021
发表期刊	Aip Advances
卷号	11 期号:6 页码:11
摘要	In this paper, a method for determining the thermal conductivity of in situ formation rock, which combines experimental measurements, theoretical model predictions, and geophysical logging of formation porosity, is presented to predict the thermal conductivity of in situ formation rocks (this method effectively combines experimental measurements, theoretical model, and geological conditions, referred to as "ETG," where E is for experimental measurements, T is for the theoretical model, and G is for geological conditions). 24 drilling cuttings samples from rocks down to a depth of 2000 m were selected for transient plane source thermal conductivity tests, and an effective thermal conductivity method was used to predict the thermal conductivity of rocks corresponding to each formation. The predicted thermal conductivity of mudstone was 2.31-3.27 W/(m K), and that of sandstone was 2.40-3.69 W/(m K). An independent-samples t test was carried out between the thermal conductivity results from the ETG prediction method and those from a diagenetic mineral-theory model. The results showed that there were no statistically significant differences between the two groups (P > 0.05) and that the fitting degree was high. The mean-square error in the solid thermal conductivities determined by the two methods was about 0.3, which indirectly demonstrates that the ETG method has high accuracy for predicting the thermal conductivity of in situ formation rock. Therefore, this method is likely to become popular in engineering practice. (C) 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license
DOI	10.1063/5.0051586
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收录类别	SCI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65411
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	F. Yi,X. P. Qi,X. X. Zheng,et al. Method for determining the thermal conductivity of in situ formation rock using drilling cuttings[J]. Aip Advances,2021,11(6):11.
APA	F. Yi,X. P. Qi,X. X. Zheng,H. Z. Yu,&W. M. Bai and H. B. Bao.(2021).Method for determining the thermal conductivity of in situ formation rock using drilling cuttings.Aip Advances,11(6),11.
MLA	F. Yi,et al."Method for determining the thermal conductivity of in situ formation rock using drilling cuttings".Aip Advances 11.6(2021):11.

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