Opportunities and challenges for geologic CO2 sequestration in carbonate reservoirs: A review

International journal of greenhouse gas control, Journal Year: 2025, Volume and Issue: 142, P. 104342 - 104342

Published: March 1, 2025

Language: Английский

---

Preparation of Heat and Salt Resistant Foam Composite System Based on Weathered Coal Particle Strengthening and a Study on Foam Stabilization Mechanism

Processes, Journal Year: 2025, Volume and Issue: 13(1), P. 183 - 183

Published: Jan. 10, 2025

Nitrogen foam is a promising enhanced oil recovery (EOR) technique with significant potential for tertiary recovery. This improves the efficiency of displacement during gas drive processes while expanding swept volume. However, in high-temperature, high-salinity reservoirs Tahe Oilfield, conventional N2 systems show suboptimal performance, as their effectiveness heavily limited by temperature and salinity. Consequently, enhancing stability under these harsh conditions crucial unlocking new opportunities development fracture-vuggy reservoirs. In this study, Waring–Blender method was used to prepare weathered coal particles stabilizer. Compared stabilizers, were found enhance liquid film high-temperature conditions. Firstly, foaming properties six agents comprehensively evaluated observed at different concentrations. YL-3J mass concentration 0.7% selected. The stabilization performance four types solid 15% particle size 300 mesh Therefore, particle-reinforced system determined consist “foaming agent (0.7%) + (15.0%) nitrogen”. exhibited volume 310 mL 150 °C salinity 210,000 mg/L, half-life 1920 s. Finally, through interfacial tension viscoelastic modulus tests, synergistic mechanism between surfactants demonstrated. incorporation reduced system. formation skeleton interface increased apparent viscosity modulus, drainage rate from foam, mitigated disproportionation effect. These effects temperature, resistance, foam. they contributed stable flow reservoir, thereby improving

Language: Английский

---

An integrated comprehensive approach describing structural features and comparative petrophysical analysis between conventional and machine learning tools to characterize carbonate reservoir: A case study from Upper Indus Basin, Pakistan

Physics and Chemistry of the Earth Parts A/B/C, Journal Year: 2025, Volume and Issue: unknown, P. 103885 - 103885

Published: Feb. 1, 2025

Language: Английский

---

Pixel-Wise Feature Fusion in Gully Susceptibility: A Comparison of Feed-Forward Neural Networks and Ensemble (Voting, Stacking) Models

Journal of African Earth Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 105633 - 105633

Published: March 1, 2025

Language: Английский

---

Chemical enhanced oil recovery in carbonate oil reservoirs using a combination of zwitterionic and cationic surfactants in the presence of different salts

Journal of Petroleum Exploration and Production Technology, Journal Year: 2025, Volume and Issue: 15(4)

Published: March 17, 2025

Language: Английский

---

Characterization and optimization of oil–gas interfacial tension during CO2/N2 injection in heavy oil reservoirs: Experimental study and regression model

Petroleum Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

---

Thermodynamic modeling hexamethylenetetramine adsorption on sandstone

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 29, 2025

Excessive water production in oil wells presents a significant operational challenge, often requiring the use of in-situ gel treatments to block water-producing zones. However, major challenge effectiveness these lies adsorption gelant components onto reservoir rocks during injection, which can hinder formation. This research novel thermodynamic investigation into behavior HMTA, commonly used crosslinker, on sandstone rocks. The novelty this study is that it provides comprehensive analysis porous media, has been scarcely explored literature. Additionally, we compare across various an approach rare current research. Understanding HMTA reservoirs crucial for developing more effective formulations and optimizing treatment strategies address issues wells. utilized batch experiments over temperature range 25-80 °C evaluate quartz grains. findings revealed process follows Langmuir isotherm model, indicating monolayer driven primarily by hydrogen bonding. Adsorption capacity increased with temperature, ranging from 64 93 mg/g-rock, confirming endothermic nature process. further spontaneous, characterized positive enthalpy (∆H° = 16.57 kJ/mol) entropy (∆S° 94.5 J/mol⋅K), along negative Gibbs free energy at all tested temperatures. Core flooding cores 100,000 mg/L solution corroborated experiment results, although lower capacities (30-54 mg/g-rock) were observed due complexity medium.

Language: Английский

---

Numerical thermodynamic-economic study and machine learning-based optimization of an innovative biogas-driven integrated power plant combined with sustainable liquid CO2 and liquid H2 production-storage processes

Case Studies in Thermal Engineering, Journal Year: 2025, Volume and Issue: 69, P. 106043 - 106043

Published: March 30, 2025

Language: Английский

---

Study on the Synergistic Stabilization Mechanism and Performance of CO₂-Responsive Viscoelastic Foam: A Leap Forward in Sustainable Fracturing Fluids

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Language: Английский

---

High-Altitude CO2 Flux in Cropland and Grassland of Eastern Qilian Mountains, China: Variation and Driving Factors

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(6)

Published: April 15, 2025

Language: Английский

---