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Impact of Polymer Mechanical Degradation on Shear and Extensional Viscosities: Toward Better Injectivity Forecasts in Polymer Flooding Operations

Author: Jean- Francois Argillier (IFP Energies nouvelles) | Adeline Dupas (IFP Energies nouvelles) | Rene Tabary (IFP Energies nouvelles) | Isabelle Henaut (IFP Energies nouvelles) | Philippe Poulain (IFP Energies nouvelles) | David Rousseau (IFP Energies nouvelles) | Thierry Aubry (Universite de Bretagne Occidentale)

 

Abstract

Field data from polymer flooding operations sometimes indicate a better-than-expected polymer injectivity below fracturing pressure. Current interpretations for this unexpected phenomenon are based either on geomechanical considerations (for unconsolidated sand formations) or on polymer mechanical degradation, potentially occurring in the [...]

Design of Thermally Stable Surfactants Formulations for Steam Foam Injection

Authors: Amandine Cuenca (Solvay) | Emie Lacombe (Solvay) | Mikel Morvan (Solvay Rhodia) | Viviane Le Drogo (Solvay) | Remi Giordanengo (Solvay) | Max Chabert (Solvay) | Eric Delamaide (IFP Technologies Canada Inc.)

 

Abstract

Steam injection is currently the most widespread method for heavy oil recovery. However, a serious limitation of this method is its energy cost due to heat losses in the reservoir. Steam foams can be used to increase the apparent viscosity [...]

Supplement to SPE 19505, The Steam-Foam Process–Review of Steam-Foam Process Mechanisms

Author: G.J. Hirasaki (Shell Development Co.) Abstract

Surfactants reduce the steam mobility by stabilizing the liquid lamellae that cause some or all of the steam to exist as a discontinuous phase. The propagation of surfactant is retarded by adsorption. In the phase. The propagation of surfactant is [...]

Laboratory Evaluation of Foaming Additives Used To Improve Steam Efficiency

M. Robin (Inst. Francais du Petrole)

 

Abstract

During steam injection operations, the sweep efficiency is detrimentally affected by gravity effects or reservoir heterogeneities. In order to increase the sweep efficiency, research is being done on combined steam and surfactant flooding, causing the generation of foam; this would [...]

Mechanism Of Crude Oil/Water Interface Destabilization By Silicone Demulsifiers

Ch. Noïk (Institut Français du Petrole) | Ch. Dalmazzone (Institut Français du Petrole) | L. Komunjer (Universite de Technologie de Compiègne)

 

Abstract

Oil exploitation is always accompanied by non-desired formation of emulsions due to the presence of naturally occurring surface-active molecules such as asphaltenes and resins. Their presence stabilizes the oil/water interface and therefore, it is necessary to break the emulsions by [...]

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