Influences of diffusion and advection on dynamic oil-CO2 mixing during CO2 EOR and storage process: Experimental study and numerical modeling at pore-scales

Li, Zongfa; Liu, Jiahui; Su, Yuliang; Fan, Lei; Hao, Yongmao; kanjibayi, Bahedawulieti; Huang, Lijuan; Ren, Shaoran; Sun, Yongquan; Liu, Ran

doi:10.1016/j.energy.2022.126567

Cited by 19 publications

(2 citation statements)

References 44 publications

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“…When the pressure increases from 10 MPa to 15 MPa, the density increases by 2.15% and 2.99%, respectively. The coupling formulas for density, temperature, and pressure under different CO 2 contents have been listed in Equations ( 7)- (9). The coupling formula for viscosity, temperature and pressure under the condition of 90% CO2 content:…”

Section: Experiments On Viscosity Of Watered Oil Containing Comentioning

confidence: 99%

“…Klewiah et al and Berawala et al found that CO 2 can preferentially substitute with methane in shale and improve recovery [5,6]. Because CO 2 can be dissolved in crude oil in large quantities, the physical parameters of crude oil will change greatly [7,8], and even the reservoir properties will be improved, which is the key to enhancing oil recovery by CO 2 [9]. CO 2 flooding is more favorable in most oilfields because CO 2 has higher solubility in oil, and it can better expand oil volume and reduce oil viscosity and CO 2 -oil interfacial Processes 2023, 11,1954 2 of 15 tension.…”

Section: Introductionmentioning

confidence: 99%

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Laboratory Test of Fluid Physical Property Parameters of Well Fluid Containing CO2

Zou¹,

Yu²,

Chen³

et al. 2023

Processes

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Change regulation of the physical properties of fluid is key to accurately predicting multiphase fluid flow in the production wellbore of CO2 flooding reservoirs. Given the characteristics of significant changes in pressure, temperature, and CO2 content in the whole wellbore of production wells in CO2 flooding reservoirs, this paper systematically studied the change rules of volume factor, viscosity, density, and solubility of well fluid for pressure 5~30 MPa, temperature 20~120 °C, and CO2 content 10~90% through single degassing PVT experiments. According to the experimental results, the volume factor of crude oil increases first and then decreases with the pressure increase. At the bubble point pressure (20 MPa), the volume factor of crude oil can reach 1.89 at high temperatures. The volume factor can be increased from 1.28 to 1.44 at 8 MPa when the temperature increases from 20 °C to 120 °C. Under the bubble point pressure, the increase in pressure increases the solubility of CO2, and the viscosity of crude oil decreases rapidly. In contrast, above the saturation pressure, the increase in pressure increases the viscosity of crude oil. Under the freezing point temperature (24 °C), the viscosity of crude oil decreases sharply with increase in temperature. In contrast, above the freezing point temperature, the viscosity change of crude oil is not sensitive to temperature. The wellbore temperature has a significant impact on the density of the well fluid. At 5 MPa, the temperature increases from 20 °C to 120 °C, which can reduce the density of high CO2 crude oil from 0.93 g/cm3 to 0.86 g/cm3. The solubility of CO2 in crude oil is sensitive to pressure. When the pressure increases from 5 MPa to 15 MPa at 20 °C, the solubility increases by 36.56 cm3/cm3. The results of this paper support the multiphase fluid flow law prediction of CO2 flooding production wells with a high gas–liquid ratio.

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Section: Experiments On Viscosity Of Watered Oil Containing Comentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Laboratory Test of Fluid Physical Property Parameters of Well Fluid Containing CO2

Zou¹,

Yu²,

Chen³

et al. 2023

Processes

Self Cite

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Annual progress in global carbon capture, utilization, and storage in 2023

Fang,

2024

Energy Science & Engineering

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Since the industrial revolution, global anthropogenic CO2 emissions have surged dramatically to unsustainable levels, resulting in severe issues, such as global warming, extreme weather events, and species extinction. In response to this critical situation, extensive efforts have been undertaken across academia, industry, and policymaking sectors to deploy carbon capture, utilization, and storage (CCUS) technologies. Here, we present the annual summary of global CCUS for the year 2023. We begin by discussing the trends of anthropogenic CO2 emissions and atmospheric CO2 concentrations, and then offer an up‐to‐date summary of progress in academia, industry, and policy, respectively. In academia, we analyze the number and categories of publications and highlight some key breakthroughs. In the industry sector, we meticulously collect and present information on operational commercial carbon‐capture and storage facilities. Furthermore, we elucidate significant policy announcements and reforms across diverse regions. This concise and comprehensive annual report aims to inspire ongoing efforts and collaboration among academia, industry, and policymakers toward advancing carbon neutrality.

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