Effect of the variations of thermophysical properties of drilling fluids with temperature on wellbore temperature calculation during drilling

Zheng Zhang, Youming Xiong, Hui Pu and Zheng Sun

Energy, 2021, vol. 214, issue C

Abstract: During the drilling process, the variations of the thermophysical properties of drilling fluid have an important effect on the wellbore temperature distribution. As the wellbore temperature changes, the thermophysical properties of drilling fluid change. In this work, the effect of the variations of density, thermal conductivity, specific heat capacity, and viscosity of drilling fluid with temperature on wellbore temperature calcilation during drilling was studied using water as drilling fluid, and the extent to which each thermophysical property affected the calculation of the wellbore temperature distribution was compared. The calculation results show that the variations of density and thermal conductivity of drilling fluid with temperature have a little effect on wellbore temperature calcilation, and the variation of specific heat capacity of drilling fluid with temperature has negligible effect on wellbore temperature calcilation, while the variation of viscosity of drilling fluid with temperature has significant effect on wellbore temperature calcilation. Therefore, whether to consider the variations of thermophysical properties of drilling fluid with temperature can have a certain effect on the calculation of wellbore temperature distribution during drilling. The thermophysical property of the drilling fluid that is very sensitive to temperature variation should be fully considered during the wellbore temperature distribution calculation.

Keywords: Drilling; Wellbore temperature; Thermophysical properties of drilling fluid; Transient heat transfer model (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544220321629
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:214:y:2021:i:c:s0360544220321629

DOI: 10.1016/j.energy.2020.119055

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().