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Wang H, Cai J, Su Y, Jin Z, Zhang M, Wang W, Li G. Pore-Scale Study on Shale Oil-CO 2-Water Miscibility, Competitive Adsorption, and Multiphase Flow Behaviors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12226-12234. [PMID: 37581528 DOI: 10.1021/acs.langmuir.3c01570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Due to the fracturing fluid imbibition and primary water, oil-water two-phase fluids generally exist in shale nanoporous media. The effects of water phase on shale oil recovery and geological carbon sequestration via CO2 huff-n-puff is non-negligible. Meanwhile, oil-CO2 miscibility after CO2 huff-n-puff also has an important effect on oil-water two-phase flow behaviors. In this work, by considering the oil-CO2 competitive adsorption behaviors and the effects of oil-CO2 miscibility on water wettability, an improved multicomponent and multiphase lattice Boltzmann method is proposed to study the effects of water phase on CO2 huff-n-puff. Additionally, the effects of oil-CO2 miscibility on oil-water flow behaviors and relative permeability are also discussed. The results show that due to Jamin's effect of water droplets in oil-wetting pores and the capillary resistance of bridge-like water phase in water-wetting pores, CO2 can hardly diffuse into the oil phase, causing a large amount of remaining oil. As water saturation increases, Jamin's effect and the capillary resistance become more pronounced, and the CO2 storage mass gradually decreases. Then, based on the results from molecular dynamics simulations, the influences of oil-CO2 miscibility on oil-water relative permeability in calcite nanoporous media are studied, and as the oil mass percentage in the oil-CO2 miscible system decreases, the oil/water relative permeability decreases/increases. The improved lattice Boltzmann model can be readily extended to quantitatively calculate geological CO2 storage mass considering water saturation and calculate the accurate oil-water relative permeability based on the real 3D digital core.
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Affiliation(s)
- Han Wang
- National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, P. R. China
| | - Jianchao Cai
- National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing 102249, P. R. China
| | - Yuliang Su
- Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, P. R. China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Zhehui Jin
- School of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Mingshan Zhang
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, P. R. China
| | - Wendong Wang
- Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, P. R. China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Guanqun Li
- Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, P. R. China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China
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Wang J, Luo X, Rogers S, Li P, Feng Y. Stabilization of CO2 aqueous foams at high temperature and high pressure: Small-angle neutron scattering and rheological studies. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ma N, Li C, Wang F, Liu Z, Zhang Y, Jiang L, Shu Y, Du D. Laboratory Study on the Oil Displacement Process in Low-Permeability Cores with Different Injection Fluids. ACS OMEGA 2022; 7:8013-8022. [PMID: 35284734 PMCID: PMC8908530 DOI: 10.1021/acsomega.1c07165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Although flooding technology has found wide application in low-permeability reservoir development practices, the oil recovery enhancement mechanisms for different injection fluids still lack specific focus based on comprehensive investigations. Therefore, in this paper, supercritical CO2 (ScCO2), N2, and water injection processes in oil-saturated low-permeability tight cores were comparatively studied. To reveal the effect of physicochemical properties of the injection fluid on the oil recovery efficiency, the Berea sandstones with three permeability levels and kerosene were employed in this study to exclude other parameter influences. The flooding processes employing various injection media were investigated based on quantitative comparisons of the oil recovery factor and the displacement pressure difference at two system pressures. The experimental results show recovery efficiencies of 59-91 and 84-92% with the increasing permeability for the ScCO2 injection process at system pressures of 15 and 25 MPa, respectively, which are much higher than 26-40 and 21-52% in the N2 case and 43-46 and 45-49% in the water cases. Interfacial tension (IFT) measurement results indicate that miscibility conditions have been achieved for the ScCO2/oil system, thus leading to much higher oil recovery. On the other hand, the pressure difference results show a similar magnitude of 10 MPa/m for both ScCO2 and N2 processes, which is much lower than the 100 MPa/m for the water flooding cases. Comprehensive comparison shows that ScCO2 shows great advantages in the application of unconventional reservoirs. It is expected that our research work could enrich the investigations of CO2 flooding and the in-depth understanding of the mechanisms and better guide the utilization of CO2.
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Affiliation(s)
- Nianhao Ma
- Geo-Energy
Research Institute, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Chaofan Li
- Geo-Energy
Research Institute, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Fei Wang
- Geo-Energy
Research Institute, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Zhiwei Liu
- Geo-Energy
Research Institute, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Yu Zhang
- Geo-Energy
Research Institute, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Luming Jiang
- Petro
China Research Institute of Petroleum Exploration & Development, Beijing 100083, China
| | - Yong Shu
- Petro
China Research Institute of Petroleum Exploration & Development, Beijing 100083, China
| | - Dongxing Du
- Geo-Energy
Research Institute, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
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Experimental determination of wetting behavior under non-atmospheric conditions relevant to reservoirs: a practical guide. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-04963-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
AbstractThe wetting behavior in subsurface reservoirs plays a crucial role in storage, migration and liberation of fluid phases that are especially relevant to the energy sector. Further, the three-phase contact angle is important for implementing safe and successful subsurface storage of hydrogen and carbon dioxide. For reliable statements on the in situ wetting, it is important to be aware of the decisive factors of influence in order to design and perform the respective experiments in an appropriate way. This paper discusses the most important effects that shall be considered when determining contact angles experimentally, like drop size, surface roughness, aging process, dynamic behavior, and the pH, giving some valuable guidance to guarantee significant results. A drop base diameter of no less than 5 mm is found to be appropriate to minimize the impact of gravity on the contact angle under reservoir conditions. It is further confirmed that surface roughness contributes to better water wetting when the contact angles are below 90°. The versatility of contact angle measurements is shown through the dual-drop dual-crystal method that can be applied to estimate the adhesion forces present at the rock-brine interface and that need to be overcome by the flooding liquid to effectively displace hydrocarbons from the pores.
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Gao H, Pu W. Experimental Study on Supercritical CO 2 Huff and Puff in Tight Conglomerate Reservoirs. ACS OMEGA 2021; 6:24545-24552. [PMID: 34604636 PMCID: PMC8482507 DOI: 10.1021/acsomega.1c03130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Indexed: 06/13/2023]
Abstract
A tight conglomerate reservoir is a kind of unconventional reservoir with strong heterogeneity, and CO2 injection is an economical and environmentally friendly method to enhance tight oil recovery. Supercritical CO2 is a very promising fluid medium for unconventional reservoir development due to its gas-liquid dual properties. In this study, the production effects of supercritical CO2 and non-supercritical CO2 in tight conglomerate reservoirs were quantitatively analyzed by huff and puff simulation experiments conducted under reservoir conditions (formation pressure 37 MPa, temperature 89 °C). Also, the influencing factors of CO2 huff and puff production, including injection volume, soaking time, and throughput cycles, were investigated. The results showed that supercritical CO2 improves the recovery by 4.02% compared with non-supercritical CO2. It could be seen that supercritical CO2 plays a positive role in improving tight conglomerate reservoirs. The optimal injection volume, soaking time, and throughput cycles were determined to be 0.50 PV, 2 h, and 3 cycles, respectively. This paper provides an important basis for the study of supercritical CO2 production in tight conglomerate reservoirs.
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Affiliation(s)
- Haiming Gao
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People’s Republic
of China
| | - Wanfen Pu
- State
Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People’s Republic
of China
- Department
of Petroleum Engineering, Kazan Federal
University, Kremlevskaya
Str. 18, Kazan 420008, Russia
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Laboratory study on oil recovery characteristics of carbonated water huff-n-puff process in tight cores under reservoir condition. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103192] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Abdulkareem FA, Padmanabhan E. Applied techniques for residual oil recovery from source rocks: A review of current challenges and possible developments. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Firas A. Abdulkareem
- Shale Gas Research Group (SGRG), Institute of Hydrocarbon Recovery (IHR) University Teknologi PETRONAS (UTP) Perak Malaysia
| | - Eswaran Padmanabhan
- Shale Gas Research Group (SGRG), Institute of Hydrocarbon Recovery (IHR) University Teknologi PETRONAS (UTP) Perak Malaysia
- Department of Geoscience, Faculty of Geoscience and Petroleunm Engineering University Teknologi PETRONAS (UTP) Perak Malaysia
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Jayasekara D, Ranjith P, Wanniarachchi W, Rathnaweera T. Understanding the chemico-mineralogical changes of caprock sealing in deep saline CO2 sequestration environments: A review study. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104819] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Alassali A, Aboud N, Kuchta K, Jaeger P, Zeinolebadi A. Assessment of Supercritical CO 2 Extraction as a Method for Plastic Waste Decontamination. Polymers (Basel) 2020; 12:polym12061347. [PMID: 32549292 PMCID: PMC7362185 DOI: 10.3390/polym12061347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 11/16/2022] Open
Abstract
Due to the lack of advanced methods to clean plastic waste from organic contaminants, this study aimed at evaluating supercritical extraction as a decontamination method. Oil-adhesive high-density polyethylene (HD-PE) oil containers were subjected to supercritical extraction using supercritical carbon dioxide. The extraction was conducted at 300 bar, applying various temperatures (i.e., 70, 80 and 90 °C). The study assessed the impact of temperature on the decontamination efficiency. The variation in the samples’ quality was first analyzed using near infrared (NIR) spectroscopy. An analysis of the content of polycyclic aromatic hydrocarbons (PAHs) was followed. Samples treated at 70 and 80 °C showed higher extraction efficiencies, in spite of the lower extraction temperatures. The NIR analysis showed that the plastic specimens did not experience degradation by the supercritical decontamination method. Moreover, the NIR spectra of the extracted oil showed the presence of a wide range of compounds, some of which are hazardous. This has been confirmed by a GC-MS analysis of the extracted oil. Based on the provided assessment, the quality of the decontaminated HD-PE plastic samples—from a contamination point of view—is enhanced in comparison to untreated samples. The level of PAHs contamination decreased to be within the allowed limits defined by the REACH regulation, and also met the specifications of the German Product Safety Committee. This study proved the effectiveness of the supercritical extraction using CO2 in extracting organic contaminants from plastics, while maintaining their quality.
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Affiliation(s)
- Ayah Alassali
- Sustainable Resource and Waste Management, TUHH—Hamburg University of Technology, Blohmstr., 15, 21079 Hamburg, Germany; (N.A.); (K.K.)
- Correspondence: (A.A.); (A.Z.); Tel.: +49-40-42878-2438 (A.A.); +49-40-6420-8660 (A.Z.)
| | - Noor Aboud
- Sustainable Resource and Waste Management, TUHH—Hamburg University of Technology, Blohmstr., 15, 21079 Hamburg, Germany; (N.A.); (K.K.)
- Eurotechnica GmbH, An den Stücken 55, D-22941 Bargteheide, Germany;
| | - Kerstin Kuchta
- Sustainable Resource and Waste Management, TUHH—Hamburg University of Technology, Blohmstr., 15, 21079 Hamburg, Germany; (N.A.); (K.K.)
| | - Philip Jaeger
- Eurotechnica GmbH, An den Stücken 55, D-22941 Bargteheide, Germany;
| | - Ahmad Zeinolebadi
- Polymer Consult Buchner GmbH, Dorfgrund 6, D-22397 Hamburg, Germany
- Correspondence: (A.A.); (A.Z.); Tel.: +49-40-42878-2438 (A.A.); +49-40-6420-8660 (A.Z.)
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Measurements and modeling of interfacial tension for (CO2 + n-alkyl benzene) binary mixtures. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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