Experimental study on flue gas foam-assisted steam flooding: investigating characteristics of enhanced oil recovery and gas storage DOI Creative Commons

Qiuying Cao,

Tao Wei,

Guanghuan Wu

et al.

Frontiers in Energy Research, Journal Year: 2023, Volume and Issue: 11

Published: Nov. 23, 2023

Steam flooding is one of the most widely used heavy oil thermal recovery technologies. transfers heat to reduce viscosity and improve fluidity. The current problem that steam loses a lot in formation, there are serious carbon emissions whole production process. In this paper, flue gas were combined drive form composite fluid, foam was added on basis. With help one-dimensional sandpack model, both single-model parallel dual-model with permeability ratio experiments conducted investigate key characteristics such as transfer, retention during displacement experimental results indicated effectively inhibited condensation reduced loss flow Compared flooding, model exhibited temperature rises 4.4°C 9.1°C at middle end, respectively. While fell slightly short terms enhanced it outperforms factor, achieving 10.4% improvement over gas-assisted flooding. blocked channeling by accumulating capturing along path, resulting volume 389 mL within model. Furthermore, facilitated previously unswept low-permeability areas, thus enhancing recovery. double-model experiment, significantly improved efficiency compared remaining content end high increased 1.9%, while front 3.5% 3.8%

Language: Английский

Preparation and plugging characteristics investigation of a high temperature induced calcium salt precipitation system for profile control in high temperature reservoirs DOI
Binfei Li, Binfei Li,

Zhuang Shi

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136413 - 136413

Published: Feb. 1, 2025

Language: Английский

Citations

1
Study on enhancing heavy oil recovery through catalytic hydrothermal cracking using a dual in-situ strategy DOI
Boliang Li,

Yigang Liu,

Binfei Li

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136275 - 136275

Published: Jan. 1, 2025

Language: Английский

Citations

0
Mechanism and Formation Conditions of Foamy Oil During Gas Huff-n-Puff in Edge and Bottom Water Heavy Oil Reservoirs DOI Open Access
Shoujun Wang, Zhimin Zhang, Zhuangzhuang Wang

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 1127 - 1127

Published: April 9, 2025

The thermal development in heavy oil reservoirs with edge and bottom water is poor, while gas huff-n-puff shows a high recovery strong adaptability. formation of foamy during one the reasons for recovery. In order to determine factors affecting flow huff-n-puff, experiments using one-dimensional sandpack were conducted. influences drawdown pressure cycle number analyzed. conditions preliminarily clarified, enhanced (EOR) mechanism was revealed. experimental results show that are two important oil. Foamy prone forming under moderate 0.5–0.75 MPa, being too small or large unfavorable. more likely form first cycles, it becomes increasingly challenging increase number. These reflect necessary huff-n-puff: allowing adequately provide shear mixing generation micro-bubbles, other content should not be avoid inability disperse stabilize bubbles. oil, on hand, increases volume phase, reduces mobility phase slows down decline rate core, thereby enhancing driving force displacement. So, influence production declined by about 26%, average increased 4.5–6.9%.

Language: Английский

Citations

0
Calcium Precipitates as Novel Agents for Controlling Steam Channeling in Steam Injection Processes for Heavy Oil Recovery DOI Open Access
Guolin Shao,

Zhuang Shi,

Yunfei Jia

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(5), P. 1319 - 1319

Published: April 25, 2025

Unconventional heavy oil reservoirs are particularly susceptible to steam breakthrough, which significantly reduces crude production. Profile control is a crucial strategy used for stabilizing production and minimizing costs in these reservoirs. Conventional plugging agent systems the thermal recovery of currently fail meet high-temperature, high-strength, deep profile requirements this process. Precipitation-type calcium salt blocking agents demonstrate long-term stability at 300 °C concentrations up 250,000 mg/L, making them highly effective channeling blockage during injection stages recovery. This study proposes two types precipitation-type agents: CaSO4 CaCO3 crystals. The precipitation behavior was investigated, their dynamic growth patterns were examined. sulfate exhibits slower crystal rate, allowing single-solution injection, while carbonate precipitates rapidly, requiring dual-solution injection. Both incorporate scale inhibitors delay crystals, aids control. Through microscopic visualization experiments, micro-blocking characteristics within pores compared, elucidating positions precipitated salts under porous conditions. Calcium crystals preferentially precipitate block larger pore channels, whereas more evenly distributed throughout reducing reservoir’s heterogeneity. final single-core displacement experiment demonstrated sealing properties systems. developed exhibit excellent performance.

Language: Английский

Citations

0
A novel strategy to enhance heavy oil Recovery: Condensation heat transfer calculation and 2-D visualized physical simulation DOI
Boliang Li, Binfei Li, Liping Du

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 349, P. 127870 - 127870

Published: May 8, 2024

Language: Английский

Citations

2
Experimental study on flue gas foam-assisted steam flooding: investigating characteristics of enhanced oil recovery and gas storage DOI Creative Commons

Qiuying Cao,

Tao Wei,

Guanghuan Wu

et al.

Frontiers in Energy Research, Journal Year: 2023, Volume and Issue: 11

Published: Nov. 23, 2023

Steam flooding is one of the most widely used heavy oil thermal recovery technologies. transfers heat to reduce viscosity and improve fluidity. The current problem that steam loses a lot in formation, there are serious carbon emissions whole production process. In this paper, flue gas were combined drive form composite fluid, foam was added on basis. With help one-dimensional sandpack model, both single-model parallel dual-model with permeability ratio experiments conducted investigate key characteristics such as transfer, retention during displacement experimental results indicated effectively inhibited condensation reduced loss flow Compared flooding, model exhibited temperature rises 4.4°C 9.1°C at middle end, respectively. While fell slightly short terms enhanced it outperforms factor, achieving 10.4% improvement over gas-assisted flooding. blocked channeling by accumulating capturing along path, resulting volume 389 mL within model. Furthermore, facilitated previously unswept low-permeability areas, thus enhancing recovery. double-model experiment, significantly improved efficiency compared remaining content end high increased 1.9%, while front 3.5% 3.8%

Language: Английский

Citations

1