Advancing CO2 enhanced oil recovery and storage in unconventional oil play—Experimental studies on Bakken shales

Jin, Lu; Hawthorne, Steven B.; Sorensen, James A.; Pekot, Lawrence J.; Kurz, Bethany A.; Smith, Steven A.; Heebink, Loreal V.; Herdegen, Volker; Bosshart, Nicholas W.; Torres, José Antonio Marina; Dalkhaa, Chantsalmaa; Peterson, Kyle; Gorecki, Charles D.; Steadman, Edward N.; Harju, John A.

doi:10.1016/j.apenergy.2017.10.054

Cited by 220 publications

(93 citation statements)

References 73 publications

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“…The studies are also aimed at determining the amount of injected CO 2 that can be stored as an immobile phase at the pore scale. Jin et al (2017) conducted an experimental study on Bakken shales to analyze CO 2 EOR and its storage in unconventional oil formations. CO 2 adsorption isotherm indicated that substantial amount of CO 2 can be trapped (~ 17 mg/g) in the Bakken shale for a broad pressure range (0-40 MPa).…”

Section: Experimental Approachmentioning

confidence: 99%

Carbon dioxide sequestration in underground formations: review of experimental, modeling, and field studies

Kalam

Olayiwola

Al-Rubaii

et al. 2020

J Petrol Explor Prod Technol

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Carbon dioxide has gradually found widespread usage in the field of science and engineering while various efforts have focused on ways to combat the menace resulting from the release of this compound in the atmosphere. A major approach to combating this release is by storage in various geological formations ranging from depleted reservoir types such as saline aquifers to other carbon sinks. In this research study, we reviewed the experimental, modeling, and field studies related to the underground storage of CO2. A considerable amount of research has been conducted in simulating and modeling CO2 sequestration in the subsurface. This review highlights some of the latest contributions. Additionally, the impact of CO2 sequestration on its surroundings due to chemical reactions, adsorption, capillarity, hysteresis, and wettability were reviewed. Some major challenges associated with CO2 injection have also been highlighted. Finally, this work presents a brief history of selected field scale projects such as Sleipner, Weyburn, In Salah, Otway Basin, Snøhvit, Alberta, Boundary Dam, Cranfield, and Ketzin. Thus, this study provides a guide of the CO2 storage process from the perspectives of experimental, modelling, and existing field studies.

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Section: Experimental Approachmentioning

confidence: 99%

Carbon dioxide sequestration in underground formations: review of experimental, modeling, and field studies

Kalam

Olayiwola

Al-Rubaii

et al. 2020

J Petrol Explor Prod Technol

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“…Storage of carbon dioxide (CO2) in unconventional formations has gained a lot of attention in recent years (e.g. [3,4]. In addition, employing CO2 as the hydraulic fracturing fluid in unconventional formations is a potential approach to economically sequester CO2 [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Supercritical CO2 on Matrix Permeability of Unconventional Formations

2021

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We studied the effects of supercritical carbon dioxide (scCO2) on the matrix permeability of reservoir rocks from the Eagle Ford, Utica, and Wolfcamp formations. We measured permeability using argon before exposure of the samples to scCO2 over time periods ranging from days to weeks. We measured permeability (and the change of permeability with confining pressure) when both argon and scCO2 were the pore fluids. In all three formations, we generally observe a negative correlation between initial permeability and carbonate content – the higher the carbonate content, the lower the initial permeability. In clay- and organic-rich samples, swelling of the matrix resulting from adsorption decreased the permeability by about 50% when the pore fluid was scCO2 although this permeability change is largely reversible. In carbonate-rich samples, dissolution of carbonate minerals by carbonic acid irreversibly increased matrix permeability, in some cases by more than one order of magnitude. This dissolution also increases the pressure dependence of permeability apparently due to enhanced mechanical compaction. Despite these trends, we observed no general correlation between mineralogy and the magnitude of the change in permeability with argon before and after exposure to scCO2. Flow of scCO2 through mm-scale cracks appears to play an important role in determining matrix permeability and the pressure dependence of permeability. Extended permeability measurements show that while adsorption is nearly instantaneous and reversible, dissolution is time-dependent, probably owing to reaction kinetics. Our results indicate that the composition and microstructure of matrix flow pathways control both the initial permeability and how permeability changes after interaction with scCO2. Electron microscopy images with Back-Scattered Electron (BSE) and Energy Dispersive Spectroscopy (EDS) revealed dissolution and etching of calcite minerals and precipitation of calcium sulfide resulting from exposure to scCO2.

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“…Because CO 2 can be dissolved in oil, which can significantly reduce interfacial tension and oil viscosity, can improve the fluidity ratio of CO 2 flooding, and has good injectivity and displacement, CO 2 flooding is becoming more and more important in the development of low‐permeability reservoirs 22 . Some scholars have studied CO 2 flooding in low‐permeability reservoirs; Jin et al 23,24 carried out experimental and theoretical research on CO 2 flooding of dense Bakken shale. The results show that CO 2 injection has good diffusion capacity and accompanying injection capacity and is an effective method for enhancing oil recovery, which can be used continuously after initial oil production.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of ASP flooding to improve oil recovery in heterogeneous reservoirs by layered injection approach

Huang

et al. 2020

Energy Science & Engineering

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To improve the oil displacement effect of ASP (alkali/surfactant/polymer) solution in heterogeneous oil reservoirs, layered injection technology is proposed for the first time for Daqing Oilfield. The technology uses partial pressure tools to control the injection amount of ASP solution in high‐permeability oil layers and uses a partial quality tool in low‐permeability oil layers. To study the experimental effect of this layered injection technology, the relationships between the different permeability, molecular weight, and concentration of the ASP solution, as well as the resistance coefficient and residual resistance coefficient, are first established, and then, a layered injection experimental model is established to carry out experimental research on injection capacity and oil displacement capacity. The experimental results show that the smaller the range of the core permeability is, the larger the molecular weight and concentration of the ASP solution are, and the poorer the injection capacity of the ASP solution is. After the action of a partial pressure tool and a partial quality tool, the injection capacity of ASP solution is improved to different degrees, and the oil displacement effect of low‐permeability cores is significantly improved, while the total oil recovery is increased, and the total oil recovery of heterogeneous cores under different conditions is increased by 1.4%‐4.05%. This experiment is of great significance to the study of improving the oil recovery of heterogeneous reservoirs.

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Advancing CO2 enhanced oil recovery and storage in unconventional oil play—Experimental studies on Bakken shales

Cited by 220 publications

References 73 publications

Carbon dioxide sequestration in underground formations: review of experimental, modeling, and field studies

Carbon dioxide sequestration in underground formations: review of experimental, modeling, and field studies

Effects of Supercritical CO2 on Matrix Permeability of Unconventional Formations

Experimental evaluation of ASP flooding to improve oil recovery in heterogeneous reservoirs by layered injection approach

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