An advanced methodology for predicting wellbore stability in chalk

Maiya Medetbekova, Hamid Nick, Bertold Plischke, Alessandro Brovelli, Helle Christensen, Mohammad Reza Hajiabadi, Henning O. Sørensen

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Abstract

In the past few decades, due to the need of constructing complex geometry boreholes (deviated, horizontal wellbores, radial drilled laterals) that are noncolinear with the principal stress directions, the traditional approach to the problem of borehole stability has been revisited. Traditionally, the stability of a well is determined using models based on linear elasticity; however, this approach does not provide realistic evaluation of stability as with elastoplastic models. With the improved understanding of the micromechanisms of the rock microstructe failure subjected to a tangential stress around the wellbore, advanced models that incorporate softening of the strength are developed.
Original languageEnglish
Publication date2019
Publication statusPublished - 2019
EventDanish Hydrocarbon Research and Technology Centre
Technology Conference 2019
- Comwell Kolding, Kolding, Denmark
Duration: 5 Nov 20196 Nov 2019
https://dhrtc.easysignup.com/16/

Conference

ConferenceDanish Hydrocarbon Research and Technology Centre
Technology Conference 2019
LocationComwell Kolding
Country/TerritoryDenmark
CityKolding
Period05/11/201906/11/2019
Internet address

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