Investigation of gas and water coning behavior for the enhancement of oil production

Lee, Woo Cheol; Lee, Young Soo; Kim, Ki Hong; Lee, Kye Jeong; Sung, Wonyong

doi:10.1007/s11814-011-0106-5

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…Meanwhile, the phenomena of adsorbed polymer layer and mechanical entrapment can make the effect of preventing excessive water production. To understand the mechanisms that enable water permeability reduction, several experimental studies have investigated the resulting effect of polymer adsorption [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Polymer Adsorption-Induced Permeability Reduction in Low Permeability Reservoirs

Park¹,

Han²,

Lee³

et al. 2014

J Pet Environ Biotechnol

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The polymer retention during polymer flooding causes reduction in pore throat size which can be detrimental to oil recovery. Especially, in low permeability reservoir unlikely in high permeability system, EOR effect of polymer flooding would not excel comparing to water flooding because of the polymer adsorption onto grain surface. This phenomenon is more significant as higher concentration of polymer solution is injected. In this study, we investigated oil recovery process during polymer flooding for a quarter of 2D 5-spot pattern of low permeability sandstone slab, in which the injected polymer solution flows in different shear rates corresponding to streamlines. The results showed that the ultimate recovery was 1.9 times higher in concentration of 1,000 ppm case than 0 ppm. The polymer adsorption layer formed during the flooding reduced the effective permeability of 1,000 ppm polymer solution. Therefore, it facilitated the oil flow and the stage of water-cut reaching 99% was slackened off.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Polymer Adsorption-Induced Permeability Reduction in Low Permeability Reservoirs

Park¹,

Han²,

Lee³

et al. 2014

J Pet Environ Biotechnol

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The effect of aquifer condition on methane recovery for CO₂injection in coalbed

Kim

Sung

Han

et al. 2012

Geosystem Engineering

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Quantitative Evaluation on the Evolution of Water Cone Behavior in a Heavy Oil Reservoir With Bottom Water

Wang

Zhou

et al. 2020

Journal of Energy Resources Technology

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In order to solve the problem of the unclear understanding of the water cone behavior and its influencing factors of horizontal well in a heavy oil reservoir with bottom water, in this paper, a series of physical models were established to quantitatively describe the inner relationships between them and further illustrated their influence on the water-cut increasing law. The results showed that the water cone and water-cut grew quickly in the heavy oil reservoir with bottom water. The sweep efficiency of the basic 2D sand-pack model reaches 0.68. The decrement of crude oil viscosity increases the sweep efficiency to about 0.08. The increment of production pressure drop increases the sweep efficiency to about 0.05–0.07. Heterogeneity enhancement decreases the sweep efficiency to about 0.06. The addition of adjustment well and barriers increases the sweep efficiency to about 0.20 and 0.08, respectively. The final sweep efficiency of the whole water cone in the 3D sand-pack model reaches 0.42. Finally, we found that the water-cut increment rules are mainly affected by water cone behavior, production schedule, and the location and distribution of barriers. The study in this paper lays a foundation for the rational and effective development of heavy oil reservoirs with bottom water, which has a broad field application prospects in the future.

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Investigation of gas and water coning behavior for the enhancement of oil production

Cited by 4 publications

References 4 publications

Experimental Investigation of Polymer Adsorption-Induced Permeability Reduction in Low Permeability Reservoirs

Experimental Investigation of Polymer Adsorption-Induced Permeability Reduction in Low Permeability Reservoirs

The effect of aquifer condition on methane recovery for CO₂injection in coalbed

Quantitative Evaluation on the Evolution of Water Cone Behavior in a Heavy Oil Reservoir With Bottom Water

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Investigation of gas and water coning behavior for the enhancement of oil production

Cited by 4 publications

References 4 publications

Experimental Investigation of Polymer Adsorption-Induced Permeability Reduction in Low Permeability Reservoirs

Experimental Investigation of Polymer Adsorption-Induced Permeability Reduction in Low Permeability Reservoirs

The effect of aquifer condition on methane recovery for CO2injection in coalbed

Quantitative Evaluation on the Evolution of Water Cone Behavior in a Heavy Oil Reservoir With Bottom Water

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The effect of aquifer condition on methane recovery for CO₂injection in coalbed