Chemical flooding — status report

Kessel, D.

doi:10.1016/0920-4105(89)90056-9

Cited by 26 publications

(11 citation statements)

References 81 publications

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“…Nevertheless, surfactants flooding at low concentration is not a satisfactory process. This may occur if the molecules are adsorbed onto the reservoir rock (Kessel, 1989). A feasible alternative is the surfactants flooding at high concentration.…”

Section: Introductionmentioning

confidence: 99%

Microemulsion flooding for enhanced oil recovery

Santanna

Curbelo

Dantas

et al. 2009

Journal of Petroleum Science and Engineering

181

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Section: Introductionmentioning

confidence: 99%

Microemulsion flooding for enhanced oil recovery

Santanna

Curbelo

Dantas

et al. 2009

Journal of Petroleum Science and Engineering

181

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“…The combined flooding processes can not only improve sweep efficiency but it can also improve displacement efficiency through increased capillary number. Combined flooding technologies have been considered to be the most potential tertiary oil recovery technologies (Wang et al, 2000, Cao et al, 2002, Li et al, 2005Vargo et al, 1999, Kessel et al, 1989.…”

Section: Introductionmentioning

confidence: 99%

Optimized Surfactant IFT and Polymer Viscosity for Surfactant-Polymer Flooding in Heterogeneous Formations

Wang

Zhao

Bai

2010

Proceedings of SPE Improved Oil Recovery Symposium

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Surfactant Polymer flooding (SP flooding) has drawn more attention than Alkaline Surfactant Polymer flooding (ASP flooding) in China due to the difficulty of demulsification and the scale formation problem from the alkali in ASP. Traditionally, the primary requirement for the surfactant in SP flooding is the lowest interfacial tension (IFT). However, core flooding tests performed in a series of heterogeneous models have demonstrated there exist optimized surfactant IFT and polymer viscosity for SP flooding, which can maximize the oil recovery of a heterogeneous formation. The optimized surfactant IFT has a low value but not the lowest possible value, and polymer viscosity is at an appropriately high value, but not the highest possible value. This paper summarizes and analyzes more than 40 core flooding test results and provides possible mechanisms for the results.

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“…Whereas polymer and alkaline flooding methods are considered to be processes of moderate complexity, surfactant flooding is among the more complex of EOR methods (Kessel, 1989).…”

Section: Chemical Floodingmentioning

confidence: 99%

“…Polymers may also be used in gel form for blocking or diverting flow. Polyacrylamides and polysaccharides are the polymers most often used in EOR operations, because they present better efficiency in improving the mobility ratio and reducing permeability (Kessel, 1989;Thomas, 2008).…”

Section: Chemical Floodingmentioning

confidence: 99%

An overview of heavy oil properties and its recovery and transportation methods

Santos

Loh

Bannwart

et al. 2014

Braz. J. Chem. Eng.

403

176

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-Unconventional oils -mainly heavy oils, extra heavy oils and bitumens -represent a significant share of the total oil world reserves. Oil companies have expressed interest in unconventional oil as alternative resources for the energy supply. These resources are composed usually of viscous oils and, for this reason, their use requires additional efforts to guarantee the viability of the oil recovery from the reservoir and its subsequent transportation to production wells and to ports and refineries. This review describes the main properties of high-viscosity crude oils, as well as compares traditional and emergent methods for their recovery and transportation. The main characteristics of viscous oils are discussed to highlight the oil properties that affect their flowability in the processes of recovery and pipeline transportation. Chemical composition is the starting point for the oil characterization and it has major impact on other properties, including key properties for their dynamics, such as density and viscosity. Next, enhanced oil recovery (EOR) methods are presented, followed by a discussion about pipeline and transportation methods. In addition, the main challenges to achieve viable recovery and transportation of unconventional oils are compared for the different alternatives proposed. The work is especially focused on the heavy oils, while other hydrocarbon solid sources, such as oil sands and shale oil, are outside of the scope of this review.

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Chemical flooding — status report

Cited by 26 publications

References 81 publications

Microemulsion flooding for enhanced oil recovery

Microemulsion flooding for enhanced oil recovery

Optimized Surfactant IFT and Polymer Viscosity for Surfactant-Polymer Flooding in Heterogeneous Formations

An overview of heavy oil properties and its recovery and transportation methods

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