Improved Efficiency of Miscible CO(2) Floods and Enhanced Prospects for CO(2) Flooding Heterogeneous Reservoirs.

Grigg, R.; Schechter, David S.

doi:10.2172/328523

Cited by 7 publications

(13 citation statements)

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“…The principle of the method is that the size of the drop falling from a capillary tube depends on the surface tension of the liquid. A where R is the average bubble radius, cm; ρis the fluid densities, g/cm 3 ; and f is the HarkingBrown correction factor.…”

Section: Equipmentmentioning

confidence: 99%

“…The product provided is a powder produced by sulfonation of softwood lignin. Chaser CD1045 (CD), the good foaming agent, is Chaser CD1045™, which was identified as one of the best foaming agents in several earlier studies [3][4][5][6] and was supplied by Chaser International as 46 The absorbance of CLS prepared by different salt types and concentrations was measured using a spectrophotometer. Figure 12 shows the effect of salt type and concentration on CLS absorbance at the wavelength of 283 nm.…”

Section: Core Flooding Systemmentioning

confidence: 99%

“…The procedure to determine CD concentration have been discussed in earlier publications. [3][4][5][6][7][8][9] The absorbance of CD solution prepared with 2 wt% brine was measured by a spectrophotometer, which was set to scan through a set range of wavelength from 0 to 700 nm.…”

Section: Core Flooding Systemmentioning

confidence: 99%

“…Equilibrium adsorption of lignosulfonate onto certain rocks has been studied. 3,20,23,26,31,[33][34][35] Little, however, has appeared in literatures concerning lignosulfonate adsorption kinetics. Knowledge of the adsorption and desorption rates aids in discerning the mechanisms controlling surfactant transport through reservoirs and predicting the fate of surfactant to provide cost-effective injection strategies.…”

Section: Kinetics and Equilibrium Of Calcium Lignosulfonate Adsorptiomentioning

confidence: 99%

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Improving Co2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Grigg

2005

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Efficiency for Recovering Oil in Heterogeneous Reservoirs." This research improved our knowledge and understanding of CO 2 flooding and included work in the areas of injectivity and mobility control. Chapter 1 summarizes a survey performed for all the CO 2 injection projects in the Permian Basin. Chapter 2 covers CO 2 -brine-reservoir rock interactions that were studied to better understand injectivity implications. Chapter 3 summarizes work performed to determine possible injectivity and productivity reduction due to high flow rate in near-wellbore regions, and Chapter 4 summarizes work in the areas of foam stability, interfacial tension, surfactant adsorption and desorption, and mobility control. Chapter 5 lists the papers, reports, workshops, and presentations produced as a result of the research work under this contract.The work performed under this contract and the results achieved through this research in the related fields of mobility control and injectivity will improve industry understanding of CO 2 flooding mechanisms, with the ultimate goal of economically recovering more of the U.S. oil reserves. Results include:• Identification of the extent that various properties affect foaming agent adsorption, i.e.: rock type, surfactant type, surfactant concentration, co-surfactants, sacrificial agents, brine salinity, pH, and temperature.• Understanding of the extent of synergistic effects on adsorption and desorption in dual chemical systems for five powdered minerals and three rock types.• Identification of parameters that change injectivity and improve sweep efficiency.• Identification of causes of injectivity changes: fines migration, permeability changes, dissolution, precipitation, stress/pressure gradient, phase behavior, flow rate, etc.• Development of models to predict advancing rates of individual components in mixed chemical systems with adsorption and desorption kinetic and equilibrium rates, foam behavior in heterogeneous systems, and injectivity.iv

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Section: Equipmentmentioning

confidence: 99%

Section: Core Flooding Systemmentioning

confidence: 99%

Section: Core Flooding Systemmentioning

confidence: 99%

Section: Kinetics and Equilibrium Of Calcium Lignosulfonate Adsorptiomentioning

confidence: 99%

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Improving Co2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Grigg

2005

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“…Therefore, for reasonably homogeneous and low viscosity crude oil reservoirs CO 2 flooding may be a viable option for EOR. Various aspects of CO 2 flooding efficiency have been addressed using laboratory, field scale, and computer simulation studies [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Influence of wettability and permeability heterogeneity on miscible CO2 flooding efficiency

Bikkina

Wan

Kim

et al. 2016

Fuel

113

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CO₂ Accounting and Risk Analysis for CO₂ Sequestration at Enhanced Oil Recovery Sites

Dai

Viswanathan

Pan

et al. 2016

Environ. Sci. Technol.

249

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Using CO2 in enhanced oil recovery (CO2-EOR) is a promising technology for emissions management because CO2-EOR can dramatically reduce sequestration costs in the absence of emissions policies that include incentives for carbon capture and storage. This study develops a multiscale statistical framework to perform CO2 accounting and risk analysis in an EOR environment at the Farnsworth Unit (FWU), Texas. A set of geostatistical-based Monte Carlo simulations of CO2-oil/gas-water flow and transport in the Morrow formation are conducted for global sensitivity and statistical analysis of the major risk metrics: CO2/water injection/production rates, cumulative net CO2 storage, cumulative oil/gas productions, and CO2 breakthrough time. The median and confidence intervals are estimated for quantifying uncertainty ranges of the risk metrics. A response-surface-based economic model has been derived to calculate the CO2-EOR profitability for the FWU site with a current oil price, which suggests that approximately 31% of the 1000 realizations can be profitable. If government carbon-tax credits are available, or the oil price goes up or CO2 capture and operating expenses reduce, more realizations would be profitable. The results from this study provide valuable insights for understanding CO2 storage potential and the corresponding environmental and economic risks of commercial-scale CO2-sequestration in depleted reservoirs.

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Improved Efficiency of Miscible CO(2) Floods and Enhanced Prospects for CO(2) Flooding Heterogeneous Reservoirs.

Cited by 7 publications

References 0 publications

Improving Co2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Improving Co2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Influence of wettability and permeability heterogeneity on miscible CO2 flooding efficiency

CO₂ Accounting and Risk Analysis for CO₂ Sequestration at Enhanced Oil Recovery Sites

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Improved Efficiency of Miscible CO(2) Floods and Enhanced Prospects for CO(2) Flooding Heterogeneous Reservoirs.

Cited by 7 publications

References 0 publications

Improving Co2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Improving Co2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Influence of wettability and permeability heterogeneity on miscible CO2 flooding efficiency

CO2 Accounting and Risk Analysis for CO2 Sequestration at Enhanced Oil Recovery Sites

Contact Info

Product

Resources

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CO₂ Accounting and Risk Analysis for CO₂ Sequestration at Enhanced Oil Recovery Sites