Experimental and numerical investigations into the effect of heterogeneities on the recovery of heavy oil by VAPour EXtraction (VAPEX)

Al-Hadhrami, M.; Alkindi, Abdullah; Muggeridge, Ann

doi:10.1016/j.fuel.2014.06.065

Cited by 13 publications

(4 citation statements)

References 50 publications

(82 reference statements)

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“… 27 Due to its high efficiency, adaptability, and operability, it has been widely used in the remediation of petroleum-contaminated soil. 28 Yu et al removed 93.4% of the semi-volatile alkanes after 30.8 h of steam extraction at an average soil temperature ≥100 °C. 29 However, vapor extraction is ineffective for poorly permeable soils, weakly volatile PAHs, and PCBs.…”

Section: Physical Chemical and Biological Remediation Techniques For ...mentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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Section: Physical Chemical and Biological Remediation Techniques For ...mentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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“…Many scholars have studied the type of solvent injected, operating pressure, temperature, injection rate, injection method, model permeability, and porosity in VAPEX technology [13][14][15][16][17][18][19][20][21]. They believe that conventional VAPEX is a feasible processing technology, but due to the high price of solvents and poor economic efficiency, it cannot be widely used commercially.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Physical Simulation of Heavy Oil Exploitation by Hot Solvent Injection

Liu

Han

et al. 2022

Geofluids

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To improve the thermal effects of solvents on heavy oil reservoirs and realize the combined action of multiple flooding mechanisms, such as solvent heating and extraction, without steam mixing, based on the M Block heavy oil reservoir in Canada, three sets of comparative hot solvent-assisted gravity drainage experiments under different temperatures and pressures were carried out through an indoor three-dimensional (3D) physical simulation device. The development characteristics of the solvent chamber in the hot solvent-assisted gravity drainage technology were studied under different pressures and temperatures, and the recovery factor, cumulative oil exchange rate, and solvent retention rate were analyzed. The results showed that due to the effect of gravity differentiation, the development morphology of the solvent chamber could be divided into three stages: rapid ascent, lateral expansion, and slow descent. When the temperature was constant, the reservoir pressure decreased, the recovery rate increased, the cumulative oil exchange rate increased, and the solvent retention rate decreased; when the pressure was constant, the temperature increased, the viscosity of heavy oil decreased, the recovery rate increased, the cumulative oil exchange rate increased, and the solvent retention rate was low. Additionally, the study also showed that for hot solvents in different phases, the use of hot solvent vapor not only required less injected solvent but also exhibited a high oil production rate, which shortened production time and reduced energy consumption. Moreover, the oil recovery rate was higher than 60%, the solvent retention rate was lower than 10%, and the cumulative oil exchange rate was higher than 3 t / t , which constituted better economic benefits and provided a reliable theoretical basis for onsite oilfield applications.

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“…The results showed the solvent moved preferentially through high permeable layers regardless of the amount of permeability. So, the flow path is controlled by the relative permeability rather than the absolute permeability (Al-Hadhrami et al, 2014). Moreover, Gomes et al modelled multi-phase flow in a quadrant model by a force-balanced control volume finite element method.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Fluid Flow Instabilities in Pore-Scale With Heterogeneities in Permeability and Wettability

Shiri¹,

Shiri²

2021

MGPB

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Quadrant geometry with permeability and wettability contrast occurs in different events, such as faults, wellbore damage, and perforation zones. In these events, understanding the dynamics of immiscible fluid displacement is vital for enhanced oil recovery. Fluid flow studies showed that viscous fingering occurs due to viscous instabilities that depend on the mobility of fluids and capillary forces. Besides, the porous domain heterogeneity is also effective on the formation of fingering. So, the purpose of the current research is to numerically investigate the effect of heterogeneity in wettability and permeability, and flow properties in Saffmann-Taylor instabilities. Numerical simulations with different flow rates in the permeability contrast model illustrated the nodal crossflow, growth of viscous fingering in the nodal part, and bypass flow in the second zone. In the wettability contrast model, a capillary fingering pattern is observed and fluid patches are isolated because of capillary force and the end effects are trapped within the quadrant. Moreover, the consequences of wettability on apparent wettability that alters the fluid-front pattern and displacement efficiency are shown.

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Experimental and numerical investigations into the effect of heterogeneities on the recovery of heavy oil by VAPour EXtraction (VAPEX)

Abstract: 29.10.14 KB. Ok to add published version to spiral, OA paper under cc b

Cited by 13 publications

References 50 publications

Research progress of bio-slurry remediation technology for organic contaminated soil

Research progress of bio-slurry remediation technology for organic contaminated soil

Three-Dimensional Physical Simulation of Heavy Oil Exploitation by Hot Solvent Injection

Numerical Investigation of Fluid Flow Instabilities in Pore-Scale With Heterogeneities in Permeability and Wettability

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