Stability of a leakage pathway in a cemented annulus

Deremble, Laure; Loizzo, Matteo; Huet, Bruno; Lecampion, Brice; Quesada, Daniel

doi:10.1016/j.egypro.2011.02.508

Cited by 24 publications

(16 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…General results point to cement reactions as not leading to significant additional problems related to leakage. This is based on a number of experimental studies [ Duguid et al ., ; Duguid and Scherer , ; Barlet‐Gouédard et al ., ; Kutchko et al ., ; Rimmelé et al ., ; Bachu and Bennion , ; Wigand et al ., ; Pratt et al ., ; Carey et al ., ; Matteo and Scherer , ; Rochelle and Milodowski , ; Jung and Um , ; Jung et al ., ; Mason et al ., ], as well as associated modeling studies [ Carey et al ., ; Huet et al ., ; Scherer and Huet , ; Corvisier et al ., ; McNab and Carroll , ; Deremble et al ., ; Wilson et al ., ; Gherardi et al ., ; Fabbri et al ., ; Raoof et al ., ; Jacquemet et al ., ; Brunet et al ., , Wertz et al ., ]. Based on these studies, three important points can be made about the behavior of cements and their possible degradation.…”

Section: Practical Models and Their Applicationsmentioning

confidence: 99%

Status of CO₂storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

et al. 2015

View full text Add to dashboard Cite

Carbon capture and storage (CCS) is the only viable technology to mitigate carbon emissions while allowing continued large-scale use of fossil fuels. The storage part of CCS involves injection of carbon dioxide, captured from large stationary sources, into deep geological formations. Deep saline aquifers have the largest identified storage potential, with estimated storage capacity sufficient to store emissions from large stationary sources for at least a century. This makes CCS a potentially important bridging technology in the transition to carbon-free energy sources. Injection of CO 2 into deep saline aquifers leads to a multicomponent, multiphase flow system, in which geomechanics, geochemistry, and nonisothermal effects may be important. While the general system can be highly complex and involve many coupled, nonlinear partial differential equations, the underlying physics can sometimes lead to important simplifications. For example, the large density difference between injected CO 2 and brine may lead to relatively fast buoyant segregation, making an assumption of vertical equilibrium reasonable. Such simplifying assumptions lead to a range of simplified governing equations whose solutions have provided significant practical insights into system behavior, including improved estimates of storage capacity, easy-to-compute estimates of CO 2 spatial migration and pressure response, and quantitative estimates of leakage risk. When these modeling studies are coupled with observations from well-characterized injection operations, understanding of the overall system behavior is enhanced significantly. This improved understanding shows that, while economic and policy challenges remain, CO 2 storage in deep saline aquifers appears to be a viable technology and can contribute substantially to climate change solutions.

show abstract

Section: Practical Models and Their Applicationsmentioning

confidence: 99%

Status of CO₂storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Such defects offer pathways for advective and reactive fluid transport. Under these conditions, CO 2 -induced reactions are widely considered to pose an enhanced threat to well integrity (Carey, 2013;Deremble et al, 2011;Luquot et al, 2013;Zhang and Bachu, 2011).…”

Section: Introductionmentioning

confidence: 99%

Reactive transport of CO 2 -rich fluids in simulated wellbore interfaces: Flow-through experiments on the 1–6 m length scale

Wolterbeek

Peach

Raoof

et al. 2016

International Journal of Greenhouse Gas Control

View full text Add to dashboard Cite

“…The cement-filled tube sample of Wolterbeek et al 44 that we will simulate is 6 m long and has a diameter of 6 mm. For systems with such large aspect ratios, the governing equations may be written using effective parameters in the cross-sectional directions, 43 providing one-dimensional equations through the length of the sample. In the numerical scheme, the sample is discretized into a series of cylindrical segments ( Figure 2 a).…”

Section: Modeling Approachmentioning

confidence: 99%

Meter-Scale Reactive Transport Modeling of CO₂-Rich Fluid Flow along Debonded Wellbore Casing-Cement Interfaces

Wolterbeek

Raoof

2018

Environ. Sci. Technol.

View full text Add to dashboard Cite

Defects along wellbore interfaces constitute potential pathways for CO2 to leak from geological storage systems. In previous experimental work, we demonstrated that CO2-induced reaction over length-scales of several meters can lead to self-sealing of such defects. In the present work, we develop a reactive transport model that, on the one hand, enables μm-mm scale exploration of reactions along debonding defects and, on the other hand, allows simulation of the large, 6 m-long samples used in our experiments. At these lengths, we find that interplay between flow velocity and reaction rate strongly affects opening/sealing of interfacial defects, and depth of chemical alteration. Carbonate precipitation in initially open defects decreases flow rate, leading to a transition from advection-dominated to diffusion-dominated reactive transport, with acidic conditions becoming progressively more confined upstream. We investigate how reaction kinetics, portlandite content, and the nature of the carbonate products impact the extent of cement alteration and permeability reduction. Notably, we observe that nonuniformity of the initial defect geometry has a profound effect on the self-sealing behavior and permeability evolution as observed on the meter scale. We infer that future wellbore models need to consider the effects of such aperture variations to obtain reliable upscaling relations.

show abstract

Stability of a leakage pathway in a cemented annulus

Cited by 24 publications

References 10 publications

Status of CO₂storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

Status of CO₂storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

Reactive transport of CO 2 -rich fluids in simulated wellbore interfaces: Flow-through experiments on the 1–6 m length scale

Meter-Scale Reactive Transport Modeling of CO₂-Rich Fluid Flow along Debonded Wellbore Casing-Cement Interfaces

Contact Info

Product

Resources

About

Stability of a leakage pathway in a cemented annulus

Cited by 24 publications

References 10 publications

Status of CO2storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

Status of CO2storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

Reactive transport of CO 2 -rich fluids in simulated wellbore interfaces: Flow-through experiments on the 1–6 m length scale

Meter-Scale Reactive Transport Modeling of CO2-Rich Fluid Flow along Debonded Wellbore Casing-Cement Interfaces

Contact Info

Product

Resources

About

Status of CO₂storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

Status of CO₂storage in deep saline aquifers with emphasis on modeling approaches and practical simulations

Meter-Scale Reactive Transport Modeling of CO₂-Rich Fluid Flow along Debonded Wellbore Casing-Cement Interfaces