Poroelastic modeling of cutting bottom-hole rock – Part I: Stress state of bottom-hole rock
Journal of Petroleum Science and Engineering(2020)
Abstract
This is the first part of a series of two papers modeling cutting bottom-hole rock during drilling. This paper studies the stress state of a bottom-hole rock that a downhole bit is drilling. A bottom-hole rock underground is subjected to far field in-situ stresses. During drilling process, the rock materials above the bottom-hole rock are gradually removed and replaced with drilling fluid, thus altering the stress state of the bottom-hole rock.
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Key words
Far field in-situ stresses,Cutting rock,Poroelasticity,Directional drilling,Bottom-hole rock,MSE
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