Open AccessNumerical research of heat transfer processes at the drilling wells in permafrost rocks
Author(s) -
А. В. Минаков,
M. I. Pryazhnikov,
E. I. Mikhienkova,
A. L. Neverov,
А. В. Матвеев,
A. V. Zhigarev,
D. V. Guzei
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012091
Subject(s) - permafrost , drilling , petroleum engineering , drilling fluid , rheology , geology , heat transfer , well drilling , fossil fuel , geotechnical engineering , petrology , materials science , mechanics , waste management , engineering , composite material , mechanical engineering , oceanography , physics
Systematic numerical studies of processes that affect the rate of thawing during drilling of oil and gas wells in permafrost have been carried out. The influence of flow rate, temperature, drilling fluid rheology and drilling duration on the rate of permafrost thawing is studied. To reduce the rate of thawing, the use of polymer drilling fluids with additives of ethylene glycol is proposed.