Feasibility study of enhanced foamy oil recovery of the Orinoco Belt using natural gas

Sun, Xiaofei; Zhang, Yanyu; Guoliang, Cui; Duan, Xiaoling; Zhao, Chunyan

doi:10.1016/j.petrol.2014.06.022

Cited by 23 publications

(9 citation statements)

References 22 publications

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“…Figure 10 indicates the pressure variation of the huff-n-puff process. The primary oil recovery of foamy oil was 17.24%, which was similar to the Round 1 of Sun et al [18], and the additional huff-n-puff improved the recovery by 3.64%. This result indicated that the natural gas huff-n-puff process was also applied to heavy oil after foamy oil depletion.…”

Section: Natural Gas Huff-n-puff Processsupporting

confidence: 81%

“…Sun et al [18] provided a gas huff-n-puff procedure of heavy oil, which had one round of oil recovery of 19.09%, and with the second round increasing by 3.03%. In Experiment 4, an additional step was taken to study the performance produced gas on oil recovery enhancement.…”

Section: Natural Gas Huff-n-puff Processmentioning

confidence: 99%

“…Most previous studies, such as those reported by Sheng et al [12], Maini [13], Ostos et al [14], Stik et al [15], Claridge et al [16], Alshmakhy et al [17], Sun et al [18] and Liu et al [19], have focused on the characteristic curve of foamy oil extraction, which is insufficient to research the bubble generation and evolution mechanism or the mechanism of the seepage flow effect during foamy oil flow. Some efforts have been made to visualize the foamy oil displacement process in porous media.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study on Factors Affecting the Performance of Foamy Oil Recovery

Liu

Yang

et al. 2019

Energies

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The flow characteristics of dissolved gas driven processes in some heavy oil reservoirs, such as low gas–oil ratio and higher oil recovery rate than expected, are quite different from conventional oil production processes. Foamy oil is considered one of the main reasons behind such a production phenomenon. In this paper, the factors affecting the performance of foamy oil recovery were experimentally investigated in a sandpack medium with the assistance of computed tomography (CT) technology to help further the understanding of the mechanism. Five different experiments were applied and the results showed that (1) the linear pressure drop production model had a similar oil recovery to that of the step-down mode; (2) increasing the depletion rate could be more favorable to the oil recovery rate; (3) under a constant gas–oil ratio, raising the temperature had little impact on oil recovery, but showed obvious impact on the production curve; and (4) with higher permeability, there were more residual oil at the end of the displacement process. Lastly, a dry gas huff and puff experiment was conducted and the decreased oil saturation was observed in the inlet section, while no obvious effect was remarked in the outlet region of the medium.

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Section: Natural Gas Huff-n-puff Processsupporting

confidence: 81%

Section: Natural Gas Huff-n-puff Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Study on Factors Affecting the Performance of Foamy Oil Recovery

Liu

Yang

et al. 2019

Energies

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“…Field observations in some heavy-oil reservoirs in Venezuela, Canada, and China, however, are not consistent with the solution gas drive description because the production GOR remains relatively low 3,4 . In addition, the oil production rates and oil recovery were reported to be significantly higher than the oil production rates and oil recovery that are expected from solution gas drive theory 5–7 .…”

Section: Introductionmentioning

confidence: 82%

Experimental study and new three-dimensional kinetic modeling of foamy solution-gas drive processes

Sun

Zhang

Wang

et al. 2018

Sci Rep

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Foamy solution-gas drive processes in heavy oil reservoirs are very complex. The influence of some microscopic factors on this process is not fully understood due to limitations of traditional depletion tests. This study aims to investigate foamy solution-gas drive by experiments and simulations. First, the effects of the pressure depletion rate on critical gas saturation and foamy solution-gas drive processes were investigated by laboratory experiments. Second, a new three-dimensional foamy oil model that captures many important characteristics of foamy solution-gas drive, such as non-equilibrium behavior, gas evolution kinetics, and the effect of viscous forces on gas mobility, was developed. Last, the effects of some important parameters on foamy solution-gas drive were systematically investigated,and a model application was conducted in a typical foamy oil reservoir. The results indicate that the new model is capble of simulating many of the unusual behaviors observed in foamy solution-gas drive on a laboratory and field scales. High oil recoveries were obtained with a high oil viscosity, high depletion rate, long sandpack, and low solution gas-oil ratio. Foamy solution-gas drive processes are sensitive to the depletion rate, length, and critical gas saturation. The oil viscosity, solution GOR and diffusion coefficient are not sensitive factors.

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“…Being a vital part of the raw material base of the oil industry in virtually all oil-producing countries, the volume of reserves of heavy and high-viscosity oils is several times greater than that of light and low-viscosity oils [1][2][3][4]. Therefore, the development of high-viscosity oil deposits is paid more and more attention [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Application of an Oil-Displacing Composition for Increasing Flow Rate of Low Producing High-Viscosity Oil Wells of the Usinskoye Oil Field

Алтунина

Kuvshinov

et al. 2016

Eurasian Chem. Tech. J.

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The results of a pilot application of a chemical composition for enhanced oil recovery developed at the IPC SB RAS are presented. The EOR-composition was tested in 2014 at the Permian-Carboniferous heavy oil deposit at the Usinskoye oil field. It is very effective for an increase in oil production rate and decrease in water cuttings of well production. In terms of the additionally produced oil, the resulting effect is up to 800 tons per well and its duration is up to 6 months. The application of technologies of low-productivity-well stimulation using the oil-displacing IKhNPRO system with controlled viscosity and alkalinity is thought to be promising. This composition is proposed for the cold’ stimulation of high-viscosity oil production as an alternative to thermal methods.

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Feasibility study of enhanced foamy oil recovery of the Orinoco Belt using natural gas

Cited by 23 publications

References 22 publications

Experimental Study on Factors Affecting the Performance of Foamy Oil Recovery

Experimental Study on Factors Affecting the Performance of Foamy Oil Recovery

Experimental study and new three-dimensional kinetic modeling of foamy solution-gas drive processes

Application of an Oil-Displacing Composition for Increasing Flow Rate of Low Producing High-Viscosity Oil Wells of the Usinskoye Oil Field

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