CO2–water–rock reaction transport via simulation study of nanoparticles-CO2 flooding and storage

2022 ◽  
Vol 50 ◽  
pp. 101736
Author(s):  
Xu Han ◽  
Fuping Feng ◽  
Maosen Yan ◽  
Ziyuan Cong ◽  
Shengyuan Liu ◽  
...  
Keyword(s):  
Simulation Study ◽  
Co2 Flooding ◽  
Reaction Transport ◽  
And Storage

Stochastic and Deterministic Petri Networks Model for Joint Management Model for Spare Parts and Maintenance: Simulation Study

2020 ◽  
Vol 46 ◽  
pp. 180-188 ◽  
Author(s):  
Oumaima Bounou ◽  
Abdellah El Barkany ◽  
Ahmed El Biyaali
Keyword(s):  
Simulation Study ◽  
Monitoring And Evaluation ◽  
Spare Parts ◽  
Maintenance Management ◽  
Graphical Interface ◽  
Efficient Tool ◽  
Joint Management ◽  
And Storage ◽  
Evaluation Techniques

Maintenance management is an orderly procedure to address the planning, organization, monitoring and evaluation of maintenance activities and associated costs. The maintenance management allows to have an efficient tool either to the management of the preventive or curative activity, an optimization of the production tool, and finally a follow-up of the costs and the performances. A good maintenance management system can help prevent problems and damages to the operating and storage environment, extend the life of assets, and reduce operating costs.In this paper, we will first present our model on the joint management of spare parts and maintenance. We will do a simulation study of our model, presented in the first section of this paper. The results of this study are presented in the second section through the presentation of the influence of certain parameters of the model on the operation of the system under consideration. This study carried out on the graphical interface of Matlab, which is one of the performance evaluation techniques. It allows to visualize the variations and anomalies which can be reached in the system considered as an overcoming of the repair of the machines by the unforeseen breakdowns.

scholarly journals Numerical simulation study on CO2 flooding in ultra-low permeability reservoirs

2011 ◽  
Vol 11 ◽  
pp. 1469-1472 ◽  
Author(s):  
Cui Maolei ◽  
Ding-Yunhong ◽  
Yang Zhengming ◽  
Xiong Shengchun ◽  
Wang Xuewu
Keyword(s):  
Numerical Simulation ◽  
Simulation Study ◽  
Low Permeability ◽  
Co2 Flooding ◽  
Low Permeability Reservoirs

scholarly journals Simulation of Immiscible Water-Alternating-CO2 Flooding in the Liuhua Oilfield Offshore Guangdong, China

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2130 ◽  
Author(s):  
Gang Hu ◽  
Pengchun Li ◽  
Linzi Yi ◽  
Zhongxian Zhao ◽  
Xuanhua Tian ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Carbon Capture ◽  
Co2 Storage ◽  
Simulation Models ◽  
Co2 Injection ◽  
Co2 Flooding ◽  
Full Field ◽  
Water Alternating Gas ◽  
Production History ◽  
And Storage

In this paper, the immiscible water-alternating-CO2 flooding process at the LH11-1 oilfield, offshore Guangdong Province, was firstly evaluated using full-field reservoir simulation models. Based on a 3D geological model and oil production history, 16 scenarios of water-alternating-CO2 injection operations with different water alternating gas (WAG) ratios and slug sizes, as well as continuous CO2 injection (Con-CO2) and primary depletion production (No-CO2) scenarios, have been simulated spanning 20 years. The results represent a significant improvement in oil recovery by CO2 WAG over both Con-CO2 and No-CO2 scenarios. The WAG ratio and slug size of water affect the efficiency of oil recovery and CO2 injection. The optimum operations are those with WAG ratios lower than 1:2, which have the higher ultimate oil recovery factor of 24%. Although WAG reduced the CO2 injection volume, the CO2 storage efficiency is still high, more than 84% of the injected CO2 was sequestered in the reservoir. Results indicate that the immiscible water-alternating-CO2 processes can be optimized to improve significantly the performance of pressure maintenance and oil recovery in offshore reef heavy-oil reservoirs significantly. The simulation results suggest that the LH11-1 field is a good candidate site for immiscible CO2 enhanced oil recovery and storage for the Guangdong carbon capture, utilization and storage (GDCCUS) project.

scholarly journals Application of CO2-water-rock reaction transport simulation in NPs-CO2 flooding and storage

2021 ◽  
Author(s):  
Fuping Feng ◽  
Xu Han ◽  
Shengyuan Liu ◽  
Dong Jing ◽  
Yanxin Wang
Keyword(s):  
Chemical Reaction ◽  
Transfer Model ◽  
Co2 Flooding ◽  
Displacement Efficiency ◽  
Chemical Reaction Kinetics ◽  
Acid Fluid ◽  
Reaction Transport ◽  
And Migration ◽  
Rock Microstructure ◽  
Migration Law

Abstract As a hot issue in geological engineering, CO2 flooding and sequestration still face many challenges. Injection of nanoparticles into CO2 can improve the injectability and effective reserves of CO2. However, the migration law of the mixed fluid of CO2 and nanoparticles (NPs-CO2) in the reservoir under the condition of chemical reaction is still unclear. Based on chemical reaction kinetics, a mass transfer model of NPs-CO2 nanofluid in reservoir is established by combining the micro-pore structure change of porous media under CO2-water-rock reactions condition and the migration law of NPs-CO2 fluid. The geochemical reaction process between CO2 and reservoir and the influence of heterogeneity caused by rock microstructure on the miscibility and migration of NPs-CO2 brine fluid are simulated. The results show that the CO2-water-rock reaction increases the heterogeneity of reservoir, and the porosity and permeability are rising as a whole; the increase of reservoir heterogeneity caused by chemical reaction can makes the migration of NPs-CO2 selective. The local accumulation of NPs-CO2 in the unconnected pores will weaken the original oil displacement efficiency to some extent; in the process of CO2 sequestration, the density difference between NPs-CO2 and formation water can not only promote the miscibility of NPs-CO2-brine fluid, but also inhibit the acid fluid under buoyancy. The upward diffusion is moved to the cover layer to prevent the chemical reaction of the rocks in the cap layer, so as ensuring the permanent storage of greenhouse gases.

Sign in / Sign up

Export Citation Format

Share Document