Open AccessTheoretical preconditions for modeling wellbore stability and predicting hydraulic fracturing
Author(s) -
A. Popov,
AUTHOR_ID,
R.A. Ismakov,
F.N. Yangirov,
A. R. Yakhin,
I.D. Abusal Yusef,
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AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
elmi əsərlər
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.409
H-Index - 11
eISSN - 2218-8622
pISSN - 2218-6867
DOI - 10.5510/ogp2021si100508
Subject(s) - hydraulic fracturing , wellbore , drilling , petroleum engineering , geology , stability (learning theory) , geotechnical engineering , engineering , mechanical engineering , computer science , machine learning
One of the complex technological tasks in the process of drilling is to ensure the stability of the wellbore walls, as well as their modeling for further forecasting the state of the wellbore and the likelihood of hydraulic fracturing. This is due to the fact that most of the complications and factors affecting the equilibrium state of the wall are associated with external influences. The article discusses the mechanical and partially hydraulic aspects of solving the described problems associated with modeling the stability of the wellbore walls and predicting hydraulic fracturing. As a result of calculations, the necessary data are obtained for making a decision on the density of the drilling fluid for drilling the considered interval of rocks. The assumed model of the porous rock and the given calculation formulas make it possible to fully evaluate the influence of the formation fluid pressure on the mechanical processes in the rocks when they are opened by a well. Keywords: hydraulic fracturing; blade bit; steel ball-shaped toothed bit; polycrystalline diamond bit; laser drilling; impact rope drilling; rotary drilling.