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Liang X, Kang T, Kang J, Li H, Zhu W. Synergistic Mechanism of Ultrasonic-Chemical Effects on the CH 4 Adsorption-Desorption and Physicochemical Properties of Jincheng Anthracite. ACS OMEGA 2023; 8:1079-1087. [PMID: 36643569 PMCID: PMC9835157 DOI: 10.1021/acsomega.2c06425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Ultrasonic is a new method to enhance coalbed methane recovery. A deeper comprehension of the synergistic mechanisms of combined ultrasonic-chemical modification on the CH4 adsorption-desorption capability and physicochemical properties of coal is necessary for potential field implementation, as the modification of coal reservoirs frequently necessitates the addition of chemical reagents. This paper evaluated the CH4 adsorption-desorption properties of anthracite modified by sodium dodecyl sulfate (SDS) solution, ultrasonic modification, and combined ultrasonic-SDS modification. Fourier transform infrared spectroscopy, low-temperature nitrogen adsorption, and micro-CT were applied to elucidate the synergistic mechanism of the combined modification. The research results show that the SDS solution reduces the saturated adsorption capacity of anthracite and increases its final desorption rate by dissolving clay minerals and the physical adsorption masking effect of SDS micelles on the coal surface. Some surface groups with low bond energy are broken or evaporated under mechanical vibration and thermal effects generated by ultrasonic. The original fractures are expanded and connected, which changes the adsorption-desorption properties of anthracite. The synergistic effect of the combined modification of ultrasonic-SDS can promote the penetration range and chemical reaction efficiency of the SDS solution, which expands the effective range of ultrasonic. After combined modification, the amount of aromatics, oxygen-containing functional groups, and aliphatic hydrocarbons on the surface of coal is reduced. The connected porosity of coal samples accounts for 91.5% of the total porosity. As a result, the saturated adsorption capacity of anthracite reduces by 26.7%, and the final desorption rate increases by 28.0%. The effect of the combined ultrasonic-chemical modification is better than that of a single modification.
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Affiliation(s)
- Xiaomin Liang
- Key
Laboratory of In-situ Property Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan030024, People’s Republic of China
| | - Tianhe Kang
- Key
Laboratory of In-situ Property Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan030024, People’s Republic of China
| | - Jianting Kang
- College
of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan030024, People’s
Republic of China
| | - Haoyang Li
- Key
Laboratory of In-situ Property Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan030024, People’s Republic of China
| | - Wenqing Zhu
- Key
Laboratory of In-situ Property Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan030024, People’s Republic of China
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2
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Formation of in-situ microemulsion and its efficiency for residual PCE removal in low temperature aquifers. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Effect of glycerol microemulsion on coal seam wetting and moisturizing performance. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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5
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Chen J, Huang Z, Liu D, Zhang Y, Li H, Lu H. Wettability reversal of reservoir rock surface through surfactant stabilized microemulsion. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12586] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jun Chen
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu P. R. China
| | - Zhiyu Huang
- School of New Energy and Materials Southwest Petroleum University Chengdu P. R. China
| | - Dongfang Liu
- Department of Chemistry, School of Science Xihua University Chengdu P. R. China
| | - Ying Zhang
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu P. R. China
| | - Hanmin Li
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu P. R. China
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6
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Advances of microemulsion and its applications for improved oil recovery. Adv Colloid Interface Sci 2022; 299:102527. [PMID: 34607652 DOI: 10.1016/j.cis.2021.102527] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 11/20/2022]
Abstract
Microemulsion, because of its excellent interfacial tension reduction and solubilization properties, has wide range of applications in the petroleum industry, especially in improved oil recovery (IOR). Herein, the concept, types and formation mechanism of microemulsion were primarily introduced. Then, the preparation and characterization methods were illustrated. Additionally, several effect factors were elaborated specifically based on the composition of microemulsion. Finally, the application of microemulsion in IOR was addressed, including IOR mechanism analysis based on sweep efficiency and displacement efficiency, injection method (microemulsion flooding, in-situ microemulsion formation) and field tests. Furthermore, the current challenges and prospects of microemulsion on IOR were analyzed.
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Rane K, Zhang B, Goual L. Microscale investigation of DNAPL displacement by engineered graphene quantum dots in heterogeneous porous media. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Yan S, Huang Q, Qin C, Wang G, Li H, Fan J. Experimental study of wetting-seepage effect of microemulsion for the coal seam water injection. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116361] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Zhang X, Liao X, Gong Z, Li X, Jia C. Formation of fatty acid methyl ester based microemulsion and removal mechanism of PAHs from contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125460. [PMID: 33930972 DOI: 10.1016/j.jhazmat.2021.125460] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Microemulsion (ME) is considered as a stable solution for adsorbing organic matters. Aiming to remediate PAH contaminated soils from industrial sites in Shijiazhuang (Soil CPS) and Beijing (Soil CSG) in China, novel MEs were designed with different ratios of mixed surfactants (Surf, TX-100+Tween 80), n-butanol and fatty acid methyl esters (FAMEs). Particle size, transmittance, surface intension, Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy of the MEs were analyzed. PAH removals by solubilization experiments were studied and regeneration of waste ME was evaluated. Results showed the novel MEs were obtained with particle sizes in a range of 18.53-122.77 nm. The lowest surface intension of MEs was 26.53 mN/m, which was prone to PAHs transferring to MEs. ‒OH (3350 cm-1), ‒C˭C (1740 cm-1) and ‒C‒O (1072 cm-1) functioned in forming MEs. Additionally, ‒OH, C‒H, ‒C˭C, ‒C‒O were considered as active binding sites when remediating PAH soils. PAH removals in soils CPS and CSG were up to 90.1% and 89.7% with surfactants and co-surfactant (Surf:Co-s), (Surf:Co-s) and FAME, soil and MEs (w:v) at ratios of 1:1, 8:2 and 1:4, respectively. About 85.6% of FAME and 41.9% of TX-100 in waste ME were recovered for recycle purpose.
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Affiliation(s)
- Xiaorong Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Xiaoyong Liao
- Land Contamination Assessment and Remediation Laboratory, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, PR China.
| | - Zongqiang Gong
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China.
| | - Xiaojun Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China.
| | - Chunyun Jia
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China.
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10
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Regeneration of transformer oil using a microemulsion with Triton X-100. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1007/s43153-021-00113-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Lv XW, Weng CC, Zhu YP, Yuan ZY. Nanoporous Metal Phosphonate Hybrid Materials as a Novel Platform for Emerging Applications: A Critical Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005304. [PMID: 33605008 DOI: 10.1002/smll.202005304] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/15/2020] [Indexed: 06/12/2023]
Abstract
Nanoporous metal phosphonates are propelling the rapid development of emerging energy storage, catalysis, environmental intervention, and biology, the performances of which touch many fundamental aspects of portable electronics, convenient transportation, and sustainable energy conversion systems. Recent years have witnessed tremendous research breakthroughs in these fields in terms of the fascinating pore properties, the structural periodicity, and versatile skeletons of porous metal phosphonates. This review presents recent milestones of porous metal phosphonate research, from the diversified synthesis strategies for controllable pore structures, to several important applications including adsorption and separation, energy conversion and storage, heterogeneous catalysis, membrane engineering, and biomaterials. Highlights of porous structure design for metal phosphonates are described throughout the review and the current challenges and perspectives for future research in this field are discussed at the end. The aim is to provide some guidance for the rational preparation of porous metal phosphonate materials and promote further applications to meet the urgent demands in emerging applications.
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Affiliation(s)
- Xian-Wei Lv
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), National Institute for Advanced Materials, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Chen-Chen Weng
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), National Institute for Advanced Materials, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yun-Pei Zhu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), National Institute for Advanced Materials, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Zhong-Yong Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), National Institute for Advanced Materials, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
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Kuang W, Saraji S, Piri M. Nanofluid-Induced Wettability Gradient and Imbibition Enhancement in Natural Porous Media: A Pore-scale Experimental Investigation. Transp Porous Media 2020. [DOI: 10.1007/s11242-020-01459-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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14
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Arshadi M, Gesho M, Qin T, Goual L, Piri M. Impact of mineralogy and wettability on pore-scale displacement of NAPLs in heterogeneous porous media. JOURNAL OF CONTAMINANT HYDROLOGY 2020; 230:103599. [PMID: 31932069 DOI: 10.1016/j.jconhyd.2020.103599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 12/21/2019] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
Subsurface formations often contain multiple minerals with different wettability characteristics upon contact with nonaqueous-phase liquids (NAPLs). Constitutive relationships between microstructure heterogeneity and NAPL fate and transport in these formations are difficult to predict. Several studies have used pore-scale network models with faithful representations of rock pore space topology to predict macroscopic descriptors of two-phase flow, however wettability is usually considered as a spatially random variable. This study attempts to overcome this limitation by considering more realistic representations of rock mineralogy and wettability in these models. This is especially important for heterogeneous rocks where properties vary at the pore-scale. The work was carried out in two phases. First, pore-fluid occupancy maps during waterflooding were obtained by X-ray microtomography to elucidate the impact of pore wall mineralogy and wettability on water preferential flow paths and NAPL trapping within a heterogeneous aquifer sandstone (Arkose). Then, microtomography images of the rock were used to generate a hybrid pore network model (PNM) that incorporated both pore space topology and pore wall mineralogy. In-situ contact angles (CA) measured on the surface of different minerals were assigned to the network on a pore-by-pore basis to describe the exact wettability distribution of the rock (Pore-by-pore model). The equivalent network was used as input in a quasi-static flow model to simulate waterflooding, and the predictions of residual NAPL saturation and relative permeabilities were compared against their experimental counterparts. To examine the sensitivity of the model to the underlying fluid-solid interactions, we also used traditional methods of wettability characterization in the input data and assigned them randomly to the PNM. Wettability in this case was assessed from macroscale CA distribution of oil droplets on the surface of unpolished Arkose substrates released by spontaneous imbibition of water (Arkose model) and from pendant drop measurements on polished quartz (Quartz model). Our results revealed that the Pore-by-pore model predicted waterflooding with the highest accuracy among all three cases. The Arkose model slightly overestimated NAPL removal whereas the Quartz model failed to predict the experiments. More in-depth analysis of the Pore-by-pore and Arkose models showed that macroscopic transport quantities are less dependent to microstructure heterogeneity if minerals are distributed uniformly across the rock. The predictions herein indicate the importance of incorporating mineralogy and wettability maps to improve the prediction capabilities of PNMs especially in systems with high mineral heterogeneity, where minerals are nonuniformly distributed, or selective fluid-mineral interactions are targeted.
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Affiliation(s)
- Maziar Arshadi
- University of Wyoming, Dept. of Petroleum Engineering, 1000 E. University Ave., Laramie, WY 82071, USA
| | - Masakazu Gesho
- University of Wyoming, Dept. of Petroleum Engineering, 1000 E. University Ave., Laramie, WY 82071, USA
| | - Tianzhu Qin
- University of Wyoming, Dept. of Petroleum Engineering, 1000 E. University Ave., Laramie, WY 82071, USA
| | - Lamia Goual
- University of Wyoming, Dept. of Petroleum Engineering, 1000 E. University Ave., Laramie, WY 82071, USA.
| | - Mohammad Piri
- University of Wyoming, Dept. of Petroleum Engineering, 1000 E. University Ave., Laramie, WY 82071, USA
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15
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Qin T, Goual L, Piri M, Hu Z, Wen D. Pore-scale dynamics of nanofluid-enhanced NAPL displacement in carbonate rock. JOURNAL OF CONTAMINANT HYDROLOGY 2020; 230:103598. [PMID: 31898982 DOI: 10.1016/j.jconhyd.2019.103598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
This study presents a pore-scale investigation of two-phase flow dynamics during nanofluid flooding in subsurface formations containing non-aqueous phase liquids (NAPLs) such as crude oils. The goal was to gain fundamental understanding of the dominant displacement mechanisms of NAPL at different stages of nanofluid injection in a carbonate rock using x-ray microtomography integrated with a miniature core-flooding system. The nanofluid consisted of surfactant-based microemulsions with in-situ synthesized silica nanoparticles. After establishing its initial wettability state, the carbonate core sample was subjected to various pore volumes (PV) of nanofluid flooding (from 0.5 to 10) to examine the impact on NAPL flow dynamics. We found that most NAPL mobilization occurred within the first PV of injection, removing nearly 50% of NAPL from the rock. The nanofluid invaded into larger pores first due to a sharp decrease in NAPL/brine interfacial tension (from 14 to 0.5 mN/m) and contact angle (from 140 to 88°). With higher amount of nanofluid delivered into the pores through advection, over 90% of NAPL droplets were emulsified and their size decreased from 9 to 3 μm. Subsequent nanofluid injection could further remove NAPL from the smaller pores by altering the thickness of NAPL layers adsorbed on the rock. This dynamic solubilization process reached equilibrium after 5 PV of injection, leading to a reduced layer thickness (from 12 to 0.2 μm), a narrower in-situ contact angle distribution around 81°, and an additional 16% of NAPL removal.
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Affiliation(s)
- Tianzhu Qin
- Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA
| | - Lamia Goual
- Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA.
| | - Mohammad Piri
- Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA
| | - Zhongliang Hu
- Department of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Dongsheng Wen
- Department of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
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16
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Qin T, Goual L, Piri M. Synergistic effects of surfactant mixtures on the displacement of nonaqueous phase liquids in porous media. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123885] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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17
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The Investigation of Permeability Calculation Using Digital Core Simulation Technology. ENERGIES 2019. [DOI: 10.3390/en12173273] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Digital core simulation technology, as an emerging numerical simulation method, has gradually come to play a significant role in the study of petrophysical properties. By using this numerical simulation method, the influence of micro factors on seepage properties of reservoir rock is taken into consideration, making up the shortcomings of the traditional physical experiment. Three-dimensional core images are reconstructed by a computed tomography scanning technique. Different sizes of the sub-region were simulated by three methods including the direct computation of Navier-Stokes equations, the simulation of the pore network model, and the lattice Boltzmann method. The permeability computed by each simulation was compared. After comparison between these three methods, the results of the direct computation method based on Navier-Stokes equations were found to be higher than the other two methods. The pore network model simulation has an obvious advantage on the computation speed and the simulation area. The lattice Boltzmann method shows the low efficiency due to the time-consuming process. At last, the permeability calculated by the three methods is matched by the Kozeny-Carman equation. A more accurate formula can be obtained by a series of numerical simulations, which can be applied to marco-scale simulation.
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RSM optimization of oil-in-water microemulsion stabilized by synthesized zwitterionic surfactant and its properties evaluation for application in enhanced oil recovery. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2019.05.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Experimental Investigation into the Screening of New Surfactant Flowback Aids and Statistical Interpretation of Their Imbibing Capacity for Selected Core Substrates. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Machale J, Majumder SK, Ghosh P, Sen TK. Role of chemical additives and their rheological properties in enhanced oil recovery. REV CHEM ENG 2019. [DOI: 10.1515/revce-2018-0033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
A significant amount of oil (i.e. 60–70%) remains trapped in reservoirs after the conventional primary and secondary methods of oil recovery. Enhanced oil recovery (EOR) methods are therefore necessary to recover the major fraction of unrecovered trapped oil from reservoirs to meet the present-day energy demands. The chemical EOR method is one of the promising methods where various chemical additives, such as alkalis, surfactants, polymer, and the combination of all alkali–surfactant–polymer (ASP) or surfactant–polymer (SP) solutions, are injected into the reservoir to improve the displacement and sweep efficiency. Every oil field has different conditions, which imposes new challenges toward alternative but more effective EOR techniques. Among such attractive alternative additives are polymeric surfactants, natural surfactants, nanoparticles, and self-assembled polymer systems for EOR. In this paper, water-soluble chemical additives such as alkalis, surfactants, polymer, and ASP or SP solution for chemical EOR are highlighted. This review also discusses the concepts and techniques related to the chemical methods of EOR, and highlights the rheological properties of the chemicals involved in the efficiency of EOR methods.
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Affiliation(s)
- Jinesh Machale
- Department of Chemical Engineering , Indian Institute of Technology Guwahati , Guwahati 781039, Assam , India
| | - Subrata Kumar Majumder
- Department of Chemical Engineering , Indian Institute of Technology Guwahati , Guwahati 781039, Assam , India
| | - Pallab Ghosh
- Department of Chemical Engineering , Indian Institute of Technology Guwahati , Guwahati 781039, Assam , India
| | - Tushar Kanti Sen
- Department of Chemical Engineering , Curtin University , GPO Box U1987 , Perth, WA 6845 , Australia
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Abstract
Based on the features of microemulsion flooding in low-permeability reservoir, a three-dimension three-phase five-component mathematical model for microemulsion flooding is established in which the diffusion and adsorption characteristics of surfactant molecules are considered. The non-Darcy flow equation is used to describe the microemulsion flooding seepage law in which the changes of threshold pressure gradient can be taken into account, and the correlation coefficients in the non-Darcy flow equation are determined through the laboratory experiments. A new treatment for the changes of threshold pressure and the quantitative description of adsorption quantity of surfactant and relative permeability curves are presented, which enhance the coincidence between mathematical model and experiment results. The relative errors of main development indexes are within 4%. A software is programmed based on the model to execute a core-level small-scale numerical simulation in Chaoyanggou Oilfield. The fitting relative errors of the pressure, flow rate, and moisture content are 3.25%, 2.71%, and 2.54%, respectively. The results of laboratory experiments and numerical simulation showed that microemulsion system could reduce the threshold pressure gradient by 0.010 MPa/m and injection pressure by 0.6 MPa. The biggest decline in moisture content reaches 33%, and the oil recovery is enhanced by 10.8%.
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22
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Mohamed AIA, Hussein IA, Sultan AS, Al-Muntasheri GA. Gelation of Emulsified Polyacrylamide/Polyethylenimine under High-Temperature, High-Salinity Conditions: Rheological Investigation. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02571] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Ibnelwaleed A. Hussein
- Gas Processing Center, College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
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Emulsions in porous media: From single droplet behavior to applications for oil recovery. Adv Colloid Interface Sci 2018; 256:305-325. [PMID: 29622270 DOI: 10.1016/j.cis.2018.03.002] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 12/16/2022]
Abstract
Emulsions are suspensions of droplets ubiquitous in oil recovery from underground reservoirs. Oil is typically trapped in geological porous media where emulsions are either formed in situ or injected to elicit oil mobilization and thus enhance the amount of oil recovered. Here, we briefly review basic concepts on geometrical and wetting features of porous media, including thin film stability and fluids penetration modes, which are more relevant for oil recovery and oil-contaminated aquifers. Then, we focus on the description of emulsion flow in porous media spanning from the behaviour of single droplets to the collective flow of a suspension of droplets, including the effect of bulk and interfacial rheology, hydrodynamic and physico-chemical interactions. Finally, we describe the particular case of emulsions used in underground porous media for enhanced oil recovery, thereby discussing some perspectives of future work. Although focused on oil recovery related topics, most of the insights we provide are useful towards remediation of oil-contaminated aquifers and for a basic understanding of emulsion flow in any kind of porous media, such as biological tissues.
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