Fluid diversion and sweep improvement with chemical gels in oil recovery processes. Final report

Seright, R.S.; Martin, F.D.

doi:10.2172/10170924

Cited by 4 publications

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Simulation of the interplay between resident and infiltrating water in partially saturated porous media

Gouet-Kaplan

Tartakovsky

Berkowitz

2009

Water Resources Research

View full text Add to dashboard Cite

[1] The interplay between resident water already in the subsurface environment (''old water'') and infiltrating water (''new water'') is examined. A smoothed particle hydrodynamics technique is used to simulate the interplay between old water and new water in a porous medium over a cycle of drainage of old water and infiltration of new water. The effect of varying the average pore size is investigated via the Bond number. Four parameters (maximal mixing amount, minimal average size of old water pockets, mixing value for which the number of old water pockets decreases, and amount of old water remaining in the system for long times) are found to be independent of the average pore size. However, the rate of change is always higher for larger pores. In particular, some old water remains in the system within stable water pockets even after infiltrating new water reaches steady state.Citation: Gouet-Kaplan, M., A. Tartakovsky, and B. Berkowitz (2009), Simulation of the interplay between resident and infiltrating water in partially saturated porous media, Water Resour. Res., 45, W05416,

show abstract

Simulation of the interplay between resident and infiltrating water in partially saturated porous media

Gouet-Kaplan

Tartakovsky

Berkowitz

2009

Water Resources Research

View full text Add to dashboard Cite

show abstract

Anomalous transport dependence on Péclet number, porous medium heterogeneity, and a temporally varying velocity field

Nissan

Berkowitz

2019

Phys. Rev. E

View full text Add to dashboard Cite

Enhancing Carbon Dioxide Flooding Sweep Efficiency in High Permeability Hydrocarbon Reservoirs Using Micro-Particle Gels

2018

View full text Add to dashboard Cite

Carbon dioxide (CO2) flooding is one of the most applied enhanced oil recovery processes nowadays. Conformance problems such as reservoir heterogeneity can diminish the amount of hydrocarbons produced using CO2 flooding, thus resulting in a lower than expected oil recovery. This research studies the ability of a chemical conformance control agent referred to as micro-sized particle gel (PPG) to improve CO2 sweep efficiency in hydrocarbon reservoirs thus increasing oil recovery. Several core flooding experiments were conducted using a high permeability sand pack model. The factors that were examined include gel strength, varied using PPG swollen in 0.05, 0.25, 1, and 10 wt% NaCl, gel concentration using 0.5, and 2 wt% gel, presence of residual oil, and CO2 injection flow rate using flow rates of 2, 4, 6, and 8 ml/min. The ability of PPG to improve CO2 conformance was quantified using the PPG's plugging efficiency improvement. PPG with low gel strength resulted in poor CO2 conformance, but when gel strength increased above approximately 1000 Pascal, a much better CO2 conformance was observed. Higher gel concentrations resulted in an improved plugging efficiency; however, the injection of the particles took a longer time. Increasing the CO2 injection flow rate resulted in a decreased plugging efficiency. Residual oil reduced the gel strength and thus the sweep efficiency was reduced. To the authors' knowledge, no detailed core flooding experiments have been conducted to study the PPG's ability to improve CO2 conformance thus making this a very important and insightful research on the utilization of PPG during CO2 flooding. By identifying, studying and analyzing the factors that impact PPG's ability to improve CO2 conformance, novel PPG technologies can be developed and utilized in the industry to improve CO2 flooding and increase oil recovery.

show abstract

Fluid diversion and sweep improvement with chemical gels in oil recovery processes. Final report

Cited by 4 publications

References 15 publications

Simulation of the interplay between resident and infiltrating water in partially saturated porous media

Simulation of the interplay between resident and infiltrating water in partially saturated porous media

Anomalous transport dependence on Péclet number, porous medium heterogeneity, and a temporally varying velocity field

Enhancing Carbon Dioxide Flooding Sweep Efficiency in High Permeability Hydrocarbon Reservoirs Using Micro-Particle Gels

Contact Info

Product

Resources

About