Experimental and Numerical Investigations into CO2 Interactions with well Infrastructure and its Impact on Long term Well Integrity

Amer Syed; Ji Quan Shi; Sevket Durucan; Anna Korre; Graham Nash

doi:10.1016/j.egypro.2014.11.603

Experimental and Numerical Investigations into CO₂ Interactions with well Infrastructure and its Impact on Long term Well Integrity

Amer Syed, Ji Quan Shi, Sevket Durucan^*, Anna Korre, Graham Nash

^*Corresponding author for this work

Engineering

Imperial College London

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

11 Downloads (Pure)

Abstract

Research presented in this paper investigated the sealing behaviour of the microannulus at cement-casing interface under simulated subsurface reservoir pressure and temperature conditions and used the experimental findings to develop a methodology to assess the overall integrity of the wellbore region during CO₂ storage. A full scale wellbore experimental test set up was constructed for use under elevated pressure and temperature conditions encountered in typical CO₂ storage sites. Three test cases representing different reservoir depth, temperature and brine salinities were analysed through long term experiments with continuous flow of CO₂ through the microannulus. Relationships for the reduction in permeability of the microannulus with time were derived from the experimental data for use in reservoir simulations on a realistic reservoir model for all three scenarios to assess the impact of leakage from the wellbore casing and cement interface on integrity of CO₂ storage.

Original language	English
Pages (from-to)	5707-5714
Number of pages	8
Journal	Energy Procedia
Volume	63
Early online date	31 Dec 2014
DOIs	https://doi.org/10.1016/j.egypro.2014.11.603
Publication status	Published - 2014

Bibliographical note

Research reported in this paper was conducted with funding from the European Commission FP7 project CO2CARE, Grant Agreement No: 256625, and also co-financed by an industrial consortium consisting of Statoil, Shell, TOTAL, RWE, Vattenfall, and Veolia. The Petrel and ECLIPSE 300 software used in this study is kindly provided by Schlumberger.

Keywords

Casing cement interface
CO storage
Microannulus
Well integrity

Access to Document

10.1016/j.egypro.2014.11.603Licence: CC BY-NC-ND

Experimental and numerical investigations into CO2 interactions with well infrastructure and its impact on long term well integrity
© 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
Final published version, 3.51 MBLicence: CC BY-NC-ND

Cite this

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title = "Experimental and Numerical Investigations into CO2 Interactions with well Infrastructure and its Impact on Long term Well Integrity",

abstract = "Research presented in this paper investigated the sealing behaviour of the microannulus at cement-casing interface under simulated subsurface reservoir pressure and temperature conditions and used the experimental findings to develop a methodology to assess the overall integrity of the wellbore region during CO2 storage. A full scale wellbore experimental test set up was constructed for use under elevated pressure and temperature conditions encountered in typical CO2 storage sites. Three test cases representing different reservoir depth, temperature and brine salinities were analysed through long term experiments with continuous flow of CO2 through the microannulus. Relationships for the reduction in permeability of the microannulus with time were derived from the experimental data for use in reservoir simulations on a realistic reservoir model for all three scenarios to assess the impact of leakage from the wellbore casing and cement interface on integrity of CO2 storage.",

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AU - Korre, Anna

AU - Nash, Graham

N1 - Research reported in this paper was conducted with funding from the European Commission FP7 project CO2CARE, Grant Agreement No: 256625, and also co-financed by an industrial consortium consisting of Statoil, Shell, TOTAL, RWE, Vattenfall, and Veolia. The Petrel and ECLIPSE 300 software used in this study is kindly provided by Schlumberger.

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AB - Research presented in this paper investigated the sealing behaviour of the microannulus at cement-casing interface under simulated subsurface reservoir pressure and temperature conditions and used the experimental findings to develop a methodology to assess the overall integrity of the wellbore region during CO2 storage. A full scale wellbore experimental test set up was constructed for use under elevated pressure and temperature conditions encountered in typical CO2 storage sites. Three test cases representing different reservoir depth, temperature and brine salinities were analysed through long term experiments with continuous flow of CO2 through the microannulus. Relationships for the reduction in permeability of the microannulus with time were derived from the experimental data for use in reservoir simulations on a realistic reservoir model for all three scenarios to assess the impact of leakage from the wellbore casing and cement interface on integrity of CO2 storage.

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