Pore Network Modeling of a Polymer Flooding Microscopic Seepage Mechanism

Sun, Chen; Jiang, Hanqiao; Li, J. J.; Ye, S. J.

doi:10.1080/10916466.2011.578098

Cited by 6 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The former ones can be used to accurately predict experimental data such as relative permeabilities and oil recovery (Øren et al, 1998), but constructing this kind of networks is costly. By contrast, random networks are founded with very low cost and mainly used to investigate non-Newtonian flow (Lopez et al 2003;Taha, 2007) and microscopic mechanism of enhanced recovery of oil such as polymer flooding (Sun et al, 2011) or surfactant flooding (Bo et al, 2003, SPE84906). What's more, wetting condition plays a significant role in determining transport properties in porous media (Romero-Zeron, 2009;Rostami et al, 2010;Kasin, 2011) and random networks can qualitatively describe wettability effects (Zhao et al, 2010) if wetting conditions can be properly or quantitatively expressed (Øren et al, 2003;Feng et al, 2012) and random networks are representative.…”

Section: Introductionmentioning

confidence: 99%

An Algorithm to Determine the Truncated Weibull Parameters for Distribution of Throats and Pores in Random Network Models

Shi¹,

Wu²,

Cui³

et al. 2022

GEP

View full text Add to dashboard Cite

In random network models, sizes for pores and throats are distributed according to a truncated Weibull distribution. As a result, parameters defining the shape of the distribution are critical for the characteristic of the network. In this paper, an algorithm to distribute pores and throats in random network was established to more representatively describe the topology of porous media. First, relations between Weibull parameters and the distribution of dimensionless throat sizes were studied and a series of standard curves were obtained. Then, by analyzing the capillary pressure curve of the core sample, frequency distribution histogram of throat sizes was obtained. All the sizes were transformed to dimensionless numbers ranged from 0 to 1. Curves of the core were compared to the standard curves, and truncated Weibull parameters could be determined according an inverse algorithm. Finally, aspect ratio and average length of throats were adjusted to simultaneously fit the porosity and the capillary pressure curves and the whole network was established. The predicted relative permeability curves were in good agreement with the experimental data of cores, indicating the validity of the algorithm.

show abstract

Section: Introductionmentioning

confidence: 99%

An Algorithm to Determine the Truncated Weibull Parameters for Distribution of Throats and Pores in Random Network Models

Shi¹,

Wu²,

Cui³

et al. 2022

GEP

View full text Add to dashboard Cite

show abstract

“…Water injection is still the most extensive and effective oilfield development method, and it is a widely used secondary oil recovery technology in the world [1]. Injected water has dual functions of oil displacement and formation energy supplement [2].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Plane Heterogeneity on Steam Flooding Development in Heavy Oil Reservoirs

Qu¹,

Ye²,

Ju³

et al. 2021

Lithosphere

View full text Add to dashboard Cite

Steam flooding is proven to be an effective method to improve the development effect of heavy oil reservoirs. And steam flooding is the most common oil recovery technology for heavy oil reservoirs in China. However, because of the various reservoir physical properties, bring great challenges to successful steam flooding development. According to the previous research and development practice, we know that reservoir heterogeneity has a great influence on the development effect of water flooding. Due to the heterogeneity of reservoirs, the development of different injection-production well patterns will be affected. However, it is uncertain whether reservoir heterogeneity has an impact on steam flooding development effect. In order to clarify the above scientific issues, we take Xinjiang steam flooding oilfield as the research object to carry out relevant research. According to the reservoir distribution characteristics of Xinjiang Oilfield, three conceptual heterogeneity models representing permeability, thickness, and geometric plane heterogeneity are firstly proposed. Then, mathematic models with different plane heterogeneity of reservoir sand were built. Based on the mathematic model, initial conditions, boundary condition, and geological parameters of conceptual models, different steam flooding patterns were studied by applying numerical calculation. It is found that heterogeneity is an important geological factor affecting the development of steam flooding of heavy oil reservoir. And the results showed that cumulative oil production was different of different flood pattern at the same production condition. It can be concluded that the development effect of steam flooding of heavy reservoirs is strongly influenced by flood pattern. In order to improve development effectiveness of steam flooding of heavy oil reservoirs, flood pattern should be optimized. For each type of plane heterogeneity reservoir, a reasonable flood pattern was proposed. For plane heterogeneity of permeability, thickness, and geometry form, under the conditions of that as the producer was deployed in high permeability, thick, wide sand body and injector was deployed in low permeability, thin, narrow sand body, the recovery of steam flooding in heavy oil reservoir was better. Finally, how the three types of plane heterogeneity influence steam flooding of heavy reservoirs was discussed by adopting a sensitivity analysis method. The results show that the influence of permeability heterogeneity is the largest, thickness heterogeneity is the second, and geometric heterogeneity is the least. This conclusion can help us improve the development of this reservoir. And also, the findings of this study can help for better understanding of properly deployed well pattern and how to effective develop the heavy oil reservoirs of strong plane heterogeneity for other heavy oil reservoirs.

show abstract

Network simulation for formation impairment due to suspended particles in injected water

Feng

Han³

et al. 2015

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

Pore Network Modeling of a Polymer Flooding Microscopic Seepage Mechanism

Cited by 6 publications

References 7 publications

An Algorithm to Determine the Truncated Weibull Parameters for Distribution of Throats and Pores in Random Network Models

An Algorithm to Determine the Truncated Weibull Parameters for Distribution of Throats and Pores in Random Network Models

The Impact of Plane Heterogeneity on Steam Flooding Development in Heavy Oil Reservoirs

Network simulation for formation impairment due to suspended particles in injected water

Contact Info

Product

Resources

About