Application of Sustainable Foaming Agents to Control the Mobility of Carbon Dioxide in Enhanced Oil Recovery

Rafati, Roozbeh; Hamidi, Hossein; Idris, Ahmad Kamal

doi:10.2118/163287-ms

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…Thus, the viscosity ratio of the two-phase system (scCO2-water) is reduced by the addition of surfactant. The contact of scCO2 with water/surfactant will also lead to foam production (Ma et al 2013) and, hence, reduce the mobility of the CO2 phase (Rafati et al 2012).…”

Section: Displacement Pattern In Supercritical Co2-water System In Pomentioning

confidence: 99%

Impacts of dynamic capillary pressure effects in supercritical CO2-Water flow: Experiments and numerical simulations

Abidoye

Das

2020

Advances in Water Resources

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Contrary to report that dynamic capillary pressure effect was insignificant in the supercritical CO2-water (scCO2-water) flow system, this work found the effect to be considerable in the displacement of water or brine by injected scCO2in the geological carbon sequestration, especially prior to the attainment of equilibrium in the system.Series of controlled laboratory scale experimental measurements and numerical simulations of the dynamic capillary pressure effect and its magnitude (dynamic coefficient, τ ) for supercritical CO2-water(scCO2-water) system are reported inunconsolidated silica sand. Novel measurement technique has been developed to achieve this purpose, by applying the concept of two-phase flow system in the context of geological carbon sequestration. This work considers the injection of scCO2 into storage aquifer as a two-phase flow system, where the CO2 displaces the resident fluid (brine or water). Using a high-pressure and high-temperature experimental rig, capillary pressure-saturation relationships (P c -S) for this flow system and the saturation rate dependencies of theP c -S relationships (quantified by dynamic coefficient, τ ), known as dynamic capillary pressure effect were determined. This τ was previously unreported for scCO2-water system. In scCO2water flow system, τ ranges from 2 x10 5 to 6 x10 5 Pa s at high water saturation and 1.3 x 10 6 to 8 x10 6 Pa saround the irreducible saturation. τ increases with rising temperature but decreases with increase in porous medium permeability.Numerically determined τ -S relationships compare well with the corresponding experimental results for wide range of water saturation.The implication was that Page 2 of 36 water saturation of the porous media will be considerably underestimated, if the dynamic capillary pressure effectwas ignored in the characterization of the scCO2water flow system , i.e., if only equilibrium Pcrelationship was used.

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Section: Displacement Pattern In Supercritical Co2-water System In Pomentioning

confidence: 99%

Impacts of dynamic capillary pressure effects in supercritical CO2-Water flow: Experiments and numerical simulations

Abidoye

Das

2020

Advances in Water Resources

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“…This is because the foaming multiple influences the flowability of foamed gel, and it has strong fluidity when the foaming multiple is quite small (Gauteplass et al 2015;Azimi 2015). At the same time, it is easy for the foamed gel to deform and move (Rafati et al 2012;De Cagny et al 2015), which is unfavorable for fire prevention and control, especially in middle and high places.…”

Section: Effect Of Foaming Multiple On Temperature Resistancementioning

confidence: 99%

The fire extinguishing performances of foamed gel in coal mine

et al. 2016

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Experiments have been made to investigate how mass concentrations of thickener and crosslinker blends and foaming multiple affect temperature resistance of foamed gel. The results show that, at 100°C, the time for temperature tolerance of common foam is only 196 s, while the time of foamed gel formed by thickener and crosslinker with the mass fractions of both 0.3, 0.4 and 0.5 % is 570, 604 and 780 s, respectively. When the foaming multiple is 5, the time for temperature resistance is 620 s. But the time reduces to 360 s as the foaming multiple increases to 30. Furthermore, researches are also conducted on the extinguishing effect of foamed gel. It can be known from the results that, when putting out the coal fire with similar size, the volume of foamed gel used is only one-ninth of that of common foam and the extinguishing time is less than half of common foam. With increasing in the mass concentration of thickener and crosslinker blends, the extinguishing time first shortens and then prolongs. When the mass fraction of complex solution mixed by thickener and crosslinker is 0.6 %, the extinguishing efficiency is the highest. If the foaming multiple is 5, the extinguishing time is the shortest. However, the time remains constant when the foaming multiple is over 20.

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“…It can dramatically reduce gas mobility by several orders of magnitude by increasing the apparent viscosity of gas and trapping a large gas fraction inside the porous medium (Bernard and Jacobs 1965;Hirasaki and Lawson 1985). Conventionally, surfactants were used to stabilize foam lamellae in the porous media in which continuous regeneration of these lamellae is an essential mechanism for foam transport (Rossen 1996; Chen et al 2010;Roostapour and Kam 2013). The quantity of surfactant required for long-distance propagation of foam from the wellbore is the key factor governing the cost associated with surfactant-stabilized foam (Kibodeaux and Rossen 1997).…”

Section: Introductionmentioning

confidence: 99%

Foams Stabilized by In-Situ Surface-Activated Nanoparticles in Bulk and Porous Media

Singh

Mohanty

2016

SPE Journal

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Foams for subsurface applications are traditionally stabilized by surfactants. The goal of this work is to study foam stabilization by nanoparticles-in particular, by in-situ surface-hydrophobization of hydrophilic nanoparticles. The interfacial properties of the nanoparticles were modulated by the attachment of short-chain surface modifiers (alkyl gallates) that render them partially hydrophobic, but still fully dispersible in water. First, static foams were generated with nanoparticles with varying concentrations of surface modifiers. The decay of foam height with time was measured, and half-lives were determined. Optical micrographs of foam stabilized by surface-modified nanoparticles (SMNPs) and surfactant were recorded. Second, aqueous foams were created insitu by coinjecting the SMNP solutions with nitrogen gas through a Berea sandstone core at a fixed quality. Pressure drop across the core was measured to estimate the achieved resistance factor. These pressure-drop results were then compared with those of a typical surfactant (alpha olefin sulfonate, alkyl polyglucoside) under similar conditions. Finally, oil-displacement experiments were conducted in Berea cores with surfactant and SMNP solutions as foaming agents (coinjection with nitrogen gas). A Bartsch shake test revealed the strong foaming tendency of SMNPs even with a very low initial surface-modifier concentration (0.05 wt%), whereas hydrophilic nanoparticles alone could not stabilize foam. The bubble texture of foam stabilized by SMNPs was finer than that with surfactants, indicating a stronger foam. As the degree of surface coating increased, the resistance factor of SMNP foam in a Berea core increased significantly. The corefloods in the sandstone cores with a reservoir crude oil showed that immiscible foams with SMNP solution can recover a significant amount of oil (20.6% of original oil in place) over waterfloods.

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Application of Sustainable Foaming Agents to Control the Mobility of Carbon Dioxide in Enhanced Oil Recovery

Cited by 5 publications

References 30 publications

Impacts of dynamic capillary pressure effects in supercritical CO2-Water flow: Experiments and numerical simulations

Impacts of dynamic capillary pressure effects in supercritical CO2-Water flow: Experiments and numerical simulations

The fire extinguishing performances of foamed gel in coal mine

Foams Stabilized by In-Situ Surface-Activated Nanoparticles in Bulk and Porous Media

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