Foam for Gas Mobility Control in the Snorre Field: The FAWAG Project

1999 ◽  
Author(s):  
T. Blaker ◽  
H.K. Celius ◽  
T. Lie ◽  
H.A. Martinsen ◽  
L. Rasmussen ◽  
...  
Keyword(s):  
Mobility Control ◽  
Gas Mobility

An Experimental Investigation of Foam for Gas Mobility Control in a Low-Temperature Fractured Carbonate Reservoir

2012 ◽  
Vol 30 (10) ◽  
pp. 976-985 ◽  
Author(s):  
A. Gandomkar ◽  
R. Kharrat ◽  
M. Motealleh ◽  
H. H. Khanamiri ◽  
M. Nematzadeh ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Low Temperature ◽  
Carbonate Reservoir ◽  
Mobility Control ◽  
Fractured Carbonate ◽  
Gas Mobility

Experimental Study of Foam Generation, Sweep Efficiency, and Flow in a Fracture Network

SPE Journal ◽  
2016 ◽  
Vol 21 (04) ◽  
pp. 1140-1150 ◽  
Author(s):  
M. A. Fernø ◽  
J.. Gauteplass ◽  
M.. Pancharoen ◽  
A.. Haugen ◽  
A.. Graue ◽  
...  
Keyword(s):  
Flow Behavior ◽  
Fractured Reservoirs ◽  
Surfactant Solution ◽  
Fracture Network ◽  
Mobility Control ◽  
Fractional Flow ◽  
Sweep Efficiency ◽  
Foam Generation ◽  
Gas Mobility ◽  
Mobility Reduction

Summary Foam generation for gas mobility reduction in porous media is a well-known method and frequently used in field applications. Application of foam in fractured reservoirs has hitherto not been widely implemented, mainly because foam generation and transport in fractured systems are not clearly understood. In this laboratory work, we experimentally evaluate foam generation in a network of fractures within fractured carbonate slabs. Foam is consistently generated by snap-off in the rough-walled, calcite fracture network during surfactant-alternating-gas (SAG) injection and coinjection of gas and surfactant solution over a range of gas fractional flows. Boundary conditions are systematically changed including gas fractional flow, total flow rate, and liquid rates. Local sweep efficiency is evaluated through visualization of the propagation front and compared for pure gas injection, SAG injection, and coinjection. Foam as a mobility-control agent resulted in significantly improved areal sweep and delayed gas breakthrough. Gas-mobility reduction factors varied from approximately 200 to more than 1,000, consistent with observations of improved areal sweep. A shear-thinning foam flow behavior was observed in the fracture networks over a range of gas fractional flows.

scholarly journals Performance of Chromic Acetate-HPAM Gel for Flue Gas Mobility Control in Low-Permeability Reservoir

2020 ◽  
Vol 526 ◽  
pp. 012074
Author(s):  
Wenli Qiao ◽  
Guicai Zhang ◽  
Jijiang Ge ◽  
Jianda Li ◽  
Ping Jiang ◽  
...  
Keyword(s):  
Flue Gas ◽  
Mobility Control ◽  
Low Permeability ◽  
Low Permeability Reservoir ◽  
Gas Mobility

scholarly journals Study of blended surfactants to generate stable foam in presence of crude oil for gas mobility control

2016 ◽  
Vol 7 (1) ◽  
pp. 77-85 ◽  
Author(s):  
Muhammad Khan Memon ◽  
Muhannad Talib Shuker ◽  
Khaled Abdalla Elraies
Keyword(s):  
Crude Oil ◽  
Mobility Control ◽  
Stable Foam ◽  
Gas Mobility

scholarly journals Enhancement of a foaming formulation with a zwitterionic surfactant for gas mobility control in harsh reservoir conditions

2021 ◽  
Author(s):  
Miguel Angel Roncoroni ◽  
Pedro Romero ◽  
Jesús Montes ◽  
Guido Bascialla ◽  
Rosario Rodríguez ◽  
...  
Keyword(s):  
Mobility Control ◽  
Zwitterionic Surfactant ◽  
Reservoir Conditions ◽  
Gas Mobility

Optimization of Foam Enhanced Oil Recovery: Balancing Sweep and Injectivity

2013 ◽  
Vol 16 (01) ◽  
pp. 51-59 ◽  
Author(s):  
M. Namdar Zanganeh ◽  
W.R.. R. Rossen
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Mobility Control ◽  
Injection Well ◽  
Productivity Index ◽  
Production Well ◽  
Sweep Efficiency ◽  
Well Productivity ◽  
Gas Mobility

Summary Foam is a means of improving sweep efficiency that reduces the gas mobility by capturing gas in foam bubbles and hindering its movement. Foam enhanced-oil-recovery (EOR) techniques are relatively expensive; hence, it is important to optimize their performance. We present a case study on the conflict between mobility control and injectivity in optimizing oil recovery in a foam EOR process in a simple 3D reservoir with constrained injection and production pressures. Specifically, we examine a surfactant-alternating-gas (SAG) process in which the surfactant-slug size is optimized. The maximum oil recovery is obtained with a surfactant slug just sufficient to advance the foam front just short of the production well. In other words, the reservoir is partially unswept by foam at the optimum surfactant-slug size. If a larger surfactant slug is used and the foam front breaks through to the production well, productivity index (PI) is seriously reduced and oil recovery is less than optimal: The benefit of sweeping the far corners of the pattern does not compensate for the harm to PI. A similar effect occurs near the injection well: Small surfactant slugs harm injectivity with little or no benefit to sweep. Larger slugs give better sweep with only a modest decrease in injectivity until the foam front approaches the production well. In some cases, SAG is inferior to gasflood (Namdar Zanganeh 2011).

scholarly journals Performance of surfactant blend formulations for controlling gas mobility and foam propagation under reservoir conditions

2020 ◽  
Vol 10 (8) ◽  
pp. 3961-3969
Author(s):  
Muhammad Khan Memon ◽  
Khaled Abdalla Elraies ◽  
Mohammed Idrees Ali Al-Mossawy
Keyword(s):  
Crude Oil ◽  
Foam Stability ◽  
High Mobility ◽  
Reduction Factor ◽  
Mobility Control ◽  
Sweep Efficiency ◽  
Surfactant Solutions ◽  
Reservoir Conditions ◽  
Gas Mobility ◽  
Mobility Reduction

Abstract The use of surfactant is one of the possible solutions to minimize the mobility of gases and improve the sweep efficiency, but the main problem with this process is its stability in the presence of injection water and crude oil under reservoir conditions. In this study, the three types of surfactant anionic, nonionic and amphoteric are examined in the presence of brine salinity at 96 °C and 1400 psia. To access the potential blended surfactant solutions as gas mobility control, laboratory test including aqueous stability, interfacial tension (IFT) and mobility reduction factor (MRF) were performed. The purpose of MRF is to evaluate the blocking effect of selected optimum surfactant solutions. Based on experimental results, no precipitation was observed by testing the surfactant solutions at reservoir temperature of 96 °C. The tested surfactant solutions reduced the IFT between crude oil and brine. The effectiveness and strength of surfactant solutions without crude oil under reservoir conditions were evaluated. A high value of differential pressure demonstrates that the strong foam was generated inside a core that resulted in delay in breakthrough time and reduction in the gas mobility. High mobility reduction factor result was measured by the solution of blended surfactant 0.6%AOS + 0.6%CA406H. Mobility reduction factor of other tested surfactant solutions was found low due to less generated foam by using CO2 under reservoir conditions. The result of these tested surfactant solutions can provide the better understanding of the mechanisms behind generated foam stability and guideline for their implementation as gas mobility control during the process of surfactant alternating gas injection.

scholarly journals Gas/water foams stabilized with a newly developed anionic surfactant for gas mobility control applications

2020 ◽  
Vol 17 (4) ◽  
pp. 1025-1036 ◽  
Author(s):  
Mohammed A. Almobarky ◽  
Zuhair AlYousif ◽  
David Schechter
Keyword(s):  
Anionic Surfactant ◽  
Mobility Control ◽  
Control Applications ◽  
Gas Mobility
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