Book ChapterDOI
Coupled Flow and Geomechanics Model for CO 2 Storage in Tight Gas Reservoir
Awez Hanegaonkar,Tapan Kidambi,G. Suresh Kumar +2 more
- pp 955-967
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TLDR
In this article, a fully coupled fully implicit flow and geomechanics simulator is introduced to describe the physics associated with the injection of CO2 into tight shales, and assess and mitigate the risks associated with reservoir overpressure.Abstract:
The process of injection and withdrawal from tight gas reservoirs is a multiphysics and multicomponent problem. The aim of the present work is to capture the physics associated with the injection of CO2 into tight shales, and assess and mitigate the risks associated with reservoir overpressure. The overpressure caused by CO2 injection usually triggers the onset of formation–deformation, which inadvertently affects the state of the stress in the target geological formations and its surroundings, the monitoring of which is critical to understand the risks in conjunction with CO2 storage. In the present work, a novel fully coupled fully implicit flow and geomechanics simulator is introduced to describe the physics in conjunction with an extended injection phase of CO2. The developed model solves for pressure saturation and porosity and permeability changes considering a multicomponent system while principally focusing on the adsorption and diffusion of CO2 and stress-dependent reservoir deformation employing cell-centred finite volume method. It is envisaged that the injection of CO2, while with the primary purpose of storage, will parallelly enhance the recovery from shale gas due to lateral sweep effects. Based on these mechanisms, for the case study of a tight gas field, the applicability of the simulation model is tested for formations with varied rock and fluid moduli in a 20-year simulation period.read more
Citations
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Journal ArticleDOI
A review on pore-scale modeling and CT scan technique to characterize the trapped carbon dioxide in impermeable reservoir rocks during sequestration
Shubham Saraf,Achinta Bera +1 more
TL;DR: An overview of pore-scale modeling and micro-CT scan imaging technique for CO2 sequestration including a background of basic concepts related to storage, CO2 enhanced oil recovery, simulators used, and storage estimation is provided in this paper.
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Scientific justification of the perforation methods for Famennian deposits in the southeast of the Perm Region based on geomechanical modelling
Sergey Chernyshov,S.N. Popov,Stanislav V. Varushkin,A. S. Melekhin,Sergey Krivoshchekov,Shaoran Ren +5 more
TL;DR: In this paper , the authors present the results of analysing geological structure of the Famennian deposits (Devonian) in the Perm Region, where numerical finite element models of near-wellbore zones were created considering slotted and cumulative perforation.
References
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TL;DR: In this article, a new theoretical model for calculating pore volume compressibility and permeability in coals as a function of effective stress and matrix shrinkage, using a single equation is presented.
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