Applying fractional flow theory to evaluate CO2 storage capacity of an aquifer

Moghanloo, Rouzbeh Ghanbarnezhad; Dadmohammadi, Younas; Yuan, Bin; Salahshoor, Shadi

doi:10.1016/j.petrol.2014.11.013

Cited by 20 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coupled with this, numerical simulators nowadays have embedded in their simulators the ability to calculate the storage capacity provided by the different storage mechanisms over an extended period. Analytical determination methods such as fractional flow theory (Moghanloo et al 2015) and relative permeability curve analysis method (Zhu et al 2017) for the determination of storage volumes can also be found in the literature.…”

Section: Saline Aquifersmentioning

confidence: 99%

A review of CO2 storage in geological formations emphasizing modeling, monitoring and capacity estimation approaches

2019

View full text Add to dashboard Cite

The merits of CO 2 capture and storage to the environmental stability of our world should not be underestimated as emissions of greenhouse gases cause serious problems. It represents the only technology that might rid our atmosphere of the main anthropogenic gas while allowing for the continuous use of the fossil fuels which still power today's world. Underground storage of CO 2 involves the injection of CO 2 into suitable geological formations and the monitoring of the injected plume over time, to ensure containment. Over the last two or three decades, attention has been paid to technology developments of carbon capture and sequestration. Therefore, it is high time to look at the research done so far. In this regard, a high-level review article is required to provide an overview of the status of carbon capture and sequestration research. This article presents a review of CO 2 storage technologies which includes a background of essential concepts in storage, the physical processes involved, modeling procedures and simulators used, capacity estimation, measuring monitoring and verification techniques, risks and challenges involved and field-/pilot-scale projects. It is expected that the present review paper will help the researchers to gain a quick knowledge of CO 2 sequestration for future research in this field. Keywords CO 2 storage • Geological formation • Modeling for CO 2 storage • Mechanism of CO 2 storage • CO 2 storage projects Edited by Yan-Hua Sun

show abstract

Section: Saline Aquifersmentioning

confidence: 99%

A review of CO2 storage in geological formations emphasizing modeling, monitoring and capacity estimation approaches

2019

View full text Add to dashboard Cite

show abstract

“…As discuss in our previous paper (Ghanbarnezhad Moghanloo et al 2015), sweep efficiency is defined as (4) where u injecetion represents the injection velocity; injection velocity is equal to the injection volume rate divided by the thickness and width. The sweep efficiency obtained from Eq.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…However, fast and reliable evaluation/screening method to determine CO 2 storage capacity of various formations with limited data is yet to be developed (Sifuentes, Giddins et al 2009). Previously we evaluated CO 2 storage capacity of 2D aquifer model owing to capillary snap-off and gas dissolution (Ghanbarnezhad Moghanloo et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Ultimate CO2 Storage Capacity of an Over-Pressurized 2D Aquifer Model

2015

View full text Add to dashboard Cite

This paper examines a systematic approach to determine ultimate CO 2 storage capacity of twodimensional (2D) aquifer model owing to capillary snap-off, gas dissolution, and gas compression. In our previous paper, an application of fractional flow theory was presented to evaluate CO 2 storage capacity of an aquifer because of capillary snap-off and gas dissolution; we re-visit that solution and incorporate gas compression as the third mechanism by which CO 2 is sequestered in geological formation. The gas compression is triggered when the pressure wave created at the injection well reaches to the physical boundaries of aquifer; beyond that point, the aquifer would realize pressure build-up (over-pressurized). Generally, numerical simulations are used to assess the CO 2 storage capacity of a geological formation and evaluate various trapping mechanisms. However, the simulations are complex and time-consuming and they require detailed inputs; whereas, the presented method requires limited inputs and provides fast results in agreement with the simulation that makes the method suitable tool to compare and screen the CO 2 storage potential of various formations.We study partially sealed aquifers where the build-up period starts at some point between the arrival of injection pressure wave and the injected fluid to the distant boundary; whereas, in completely sealed aquifer, the pressure build up starts immediately after the injection wave reaches to the boundary. We develop a mathematical expression to estimate the maximum CO 2 storage capacity for the partially sealed aquifer.To verify the analytic solution, we incorporate the contribution of compressibility into the model we previously developed via an adjusted injection rate. The adjusted injection rate is presented as a function of the dimensionless aquifer properties through a set of plots. Gas compression yields larger immobile CO 2 plume during the aquifer build-up period. However, we limit the pressure adjutant to the aquifer boundaries to the fracturing pressure/rock failure beyond which elastic deformation is not sustained.In practice, the proposed method provides an efficient screening method to assess the CO 2 storage capacity of over-pressurized aquifers and significantly reduces the simulation costs while providing an interesting insight.

show abstract

Formation Damage Problems Associated With CO2 Flooding

Finley²,

Carpenter

2018

Formation Damage During Improved Oil Recovery

View full text Add to dashboard Cite

Applying fractional flow theory to evaluate CO2 storage capacity of an aquifer

Cited by 20 publications

References 22 publications

A review of CO2 storage in geological formations emphasizing modeling, monitoring and capacity estimation approaches

A review of CO2 storage in geological formations emphasizing modeling, monitoring and capacity estimation approaches

Ultimate CO2 Storage Capacity of an Over-Pressurized 2D Aquifer Model

Formation Damage Problems Associated With CO2 Flooding

Contact Info

Product

Resources

About