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Journal articles on the topic 'Chemical flooding'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Müller, E. Matthias, Armin de Meijere, and Helmut Grubmüller. "Predicting unimolecular chemical reactions: Chemical flooding." Journal of Chemical Physics 116, no. 3 (2002): 897–905. http://dx.doi.org/10.1063/1.1427722.

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2

Li, Xianjie, Jian Zhang, Yaqian Zhang, et al. "Experimental Study on the Application of Polymer Agents in Offshore Oil Fields: Optimization Design for Enhanced Oil Recovery." Polymers 17, no. 2 (2025): 244. https://doi.org/10.3390/polym17020244.

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The Bohai oilfield is characterized by severe heterogeneity and high average permeability, leading to a low water flooding recovery efficiency. Polymer flooding only works for a certain heterogeneous reservoir. Therefore, supplementary technologies for further enlarging the swept volume are still necessary. Based on the concept of discontinuous chemical flooding with multi slugs, three chemical systems, which were polymer gel (PG), hydrophobically associating polymer (polymer A), and conventional polymer (polymer B), were selected as the profile control and displacing agents. The optimization

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3

Kessel, D. G. "Chemical flooding — status report." Journal of Petroleum Science and Engineering 2, no. 2-3 (1989): 81–101. http://dx.doi.org/10.1016/0920-4105(89)90056-9.

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4

Zhaoxia, LIU, WANG Qiang, MA Desheng, Gaoming, and LIU Wanlu. "Weight Analysis of Influence Factors and Potential Evaluation Method for Chemical Combination Flooding." E3S Web of Conferences 53 (2018): 01022. http://dx.doi.org/10.1051/e3sconf/20185301022.

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In this paper, the weight coefficient of influencing factors for chemical combination flooding is determined by using grey correlation theory. A calculation method for comprehensive evaluation score of chemical combination flooding is established. The influence factor grading and weight grading are combined in this method. By collecting and analysing chemical combination flooding field tests, a prediction method for chemical combination flooding is established by the exponential regression. It reflects the relationship between EOR of the chemical combination flooding and the comprehensive eval

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5

Gustianthy, Agnesya Putri, Yuni Krisyuningsih Krisnandi, and Usman Usman. "Application of Non Ionic Surfactant – Alkylpolyglucoside as Chemical Flooding." International Journal of Chemical Engineering and Applications 10, no. 4 (2019): 121–25. http://dx.doi.org/10.18178/ijcea.2019.10.4.753.

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6

Yu, Q., H. Jiang, Y. Song, Z. Yi, and C. Zhang. "Chemical Flooding for Enhanced Recovery." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 34, no. 5 (2012): 478–83. http://dx.doi.org/10.1080/15567036.2011.592917.

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7

Porcelli, P. C., and M. S. Bidner. "Transport Phenomena in Chemical Flooding." SPE Advanced Technology Series 4, no. 01 (1996): 137–43. http://dx.doi.org/10.2118/27030-pa.

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8

Yuan, Fu Qing, and Zhen Quan Li. "An Easy Calculation Method on Sweep Efficiency of Chemical Flooding." Applied Mechanics and Materials 275-277 (January 2013): 496–501. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.496.

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According to the geological parameters of Shengli Oilfield, sweep efficiency of chemical flooding was analyzed according to injection volume, injection-production parameters of polymer flooding or surfactant-polymer compound flooding. The orthogonal design method was employed to select the important factors influencing on expanding sweep efficiency by chemical flooding. Numerical simulation method was utilized to analyze oil recovery and sweep efficiency of different flooding methods, such as water flooding, polymer flooding and surfactant-polymer compound flooding. Finally, two easy calculati

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9

Zhu, You Yi, Guo Qing Jian, Zhe Wang, Ming Lei, and Qing Feng Hou. "Development Progress of Surfactants for Chemical Combination Flooding." Advanced Materials Research 524-527 (May 2012): 1673–80. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1673.

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Chemical combination flooding is one of the main enhanced oil recovery (EOR) techniques in China. The key factor of a successful chemical combination flooding application is the development of oil displacement surfactants with good performance. In this paper, the basic requirements of surfactant for chemical combination flooding were introduced, and the development progress of surfactants for chemical combination flooding was reviewed and their application results were shown. With the expanding application of chemical combination flooding in different types of reservoir, the challenge and deve

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10

Zhang, Zenghua, Yi Jin, Jian Zhang, et al. "Adaptability Study of Hot Water Chemical Flooding in Offshore Heavy Oilfields." Geofluids 2022 (November 17, 2022): 1–11. http://dx.doi.org/10.1155/2022/2224321.

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As a new heavy oil development technology, hot water chemistry flooding has great potential in offshore heavy oil fields development. In this paper, the adaptability of hot water chemical flooding was studied based on the typical model of offshore heavy oil fields. The main controlling factors affecting the hot water chemical flooding were analyzed and evaluated by single factor analysis. The technical boundary was established for offshore heavy oil fields. In addition, the hot water chemical flooding scheme was designed by a case study of a well group oilfield D. The results indicate that cru

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11

Das, Borkha, Subrata Gogoi, and Deepjyoti Mech. "Micellar-polymer for enhanced oil recovery for Upper Assam Basin." Resource-Efficient Technologies, no. 1 (March 12, 2017): 82–87. http://dx.doi.org/10.18799/24056529/2017/1/101.

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One of the major enhanced oil recovery (EOR) processes is chemical flooding especially for the depleted reservoirs. Chemical flooding involvesinjection of various chemicals like surfactant, alkali, polymer etc. to the aqueous media. Bhogpara and Nahorkatiya are two depleted reservoirs ofupper Assam basin where chemical flooding can be done to recover the trapped oil that cannot be recovered by conventional flooding process.Micellar-polymer (MP) flooding involves injection of micelle and polymer to the aqueous phase to reduce interfacial tension and polymer is addedto control the mobility of th

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12

Yanfu, Pi, Guo Xiaosai, Pi Yanming, and Wu Peng. "Experimental Study of Chemical Flooding of Suizhong 36-1 Oilfield." Open Petroleum Engineering Journal 8, no. 1 (2015): 392–97. http://dx.doi.org/10.2174/1874834101508010392.

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Aim at the reservoir characteristics of Suizhong 36-1 Oil Field, this paper has developed typical two-dimensional physical model in parallel between the layers and studied the macroscopic displacement effect of polymer flooding and binary compound flooding, and studied the interlayer spread law and oil displacement efficiency of polymer flooding and binary combination flooding by using saturation monitoring system deeply. The results show that: when the multiples of pore volume injected for polymer was 0.3 after water flooding, the recovery efficiency increased by 10.3%, and when the multiples

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13

Lwisa, Essa Georges. "Chemical Enhanced Oil Recovery." International Journal for Innovation Education and Research 9, no. 6 (2021): 160–72. http://dx.doi.org/10.31686/ijier.vol9.iss6.3160.

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Enhanced Oil Recovery (EOR) techniques are currently one of the top priorities of technological development in the oil industry owing to the increasing demand for oil and gas, which cannot be fulfilled by primary or secondary production methods. The main function of the enhanced oil recovery process is to displace oil in the production wells by the injection of different fluids to supplement the natural energy present in the reservoir. moreover these injecting fluids can alter the reservoir`s properties; for example they can lower the interfacial tension (IFT) between oil and water, alter the

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14

Dauyltayeva, Amina, Aibek Mukhtarov, Dilyara Sagandykova, Mariam Shakeel, Peyman Pourafshary, and Darya Musharova. "Screening of Chemicals to Enhance Oil Recovery in a Mature Sandstone Oilfield in Kazakhstan: Overcoming Challenges of High Residual Oil." Applied Sciences 13, no. 18 (2023): 10307. http://dx.doi.org/10.3390/app131810307.

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Chemical flooding, such as alkaline-surfactant (AS) or nanoparticles-surfactant (NS) flooding, is an enhanced oil recovery (EOR) technique that has been increasingly utilized to enhance the oil production rate and recovery factor while reducing chemical adsorption. The AS/NS flooding process involves the injection of a mixture of surfactant and alkali/nanoparticles solutions into an oil reservoir to reduce the interfacial tension between the oil and water phases by surfactant and lower surfactant adsorption by alkali or nanoparticles (NPs) to improve the residual oil recovery. In this study, t

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15

Zhu, You Yi, Wen Li Luo, Guo Qing Jian, Chao An Wang, Qing Feng Hou, and Jia Ling Niu. "Development and Performance of Water Soluble Salt-Resistant Polymers for Chemical Flooding." Advanced Materials Research 476-478 (February 2012): 227–35. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.227.

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The basic requirement of polymer for chemical flooding was introduced, development progress and performance evaluation of salt-resistant polymers for chemical flooding were discussed, and development direction of polymers for chemical flooding was indicated in this paper.

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16

AN, El-hoshoudy. "Investigation of Oil Recovery Improving through Surfactant Flooding; Design Program Scenario." Petroleum & Petrochemical Engineering Journal 5, no. 1 (2021): 1–24. http://dx.doi.org/10.23880/ppej-16000258.

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Chemical flooding is one of the major EOR techniques particularly for reservoirs where thermal methods are not applicable, that chemical flooding may be polymer flooding, alkaline flooding, surfactant flooding, or a combination of them. The application of designing a chemical flooding program is strongly affected by the current economics, reservoir oil type, and crude oil price. In this project, mechanisms of different chemical methods will be discussed, and design chemical flooding program by using a laboratory scale and programming method, this project is mainly about making a design of surf

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17

Zhou, Haiyan, and Afshin Davarpanah. "Hybrid Chemical Enhanced Oil Recovery Techniques: A Simulation Study." Symmetry 12, no. 7 (2020): 1086. http://dx.doi.org/10.3390/sym12071086.

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Simultaneous utilization of surfactant and preformed particle gel (henceforth; PPG) flooding on the oil recovery enhancement has been widely investigated as a preferable enhanced oil recovery technique after the polymer flooding. In this paper, a numerical model is developed to simulate the profound impact of hybrid chemical enhanced oil recovery methods (PPG/polymer/surfactant) in sandstone reservoirs. Moreover, the gel particle conformance control is considered in the developed model after polymer flooding performances on the oil recovery enhancement. To validate the developed model, two set

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18

Zhu, You Yi, Qing Feng Hou, Guo Qing Jian, and De Sheng Ma. "Present Status of Research and Application of Chemical Combination Flooding Technique and its Future." Advanced Materials Research 396-398 (November 2011): 1248–59. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.1248.

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Chemical combination flooding technique is one of EOR techniques. The current status of chemical combination flooding including EOR mechanism, formula study, field test and application have been introduced and discussed. The problems met in field tests and future development trend of chemical combination flooding are directed. Synergistic effect among alkali, surfactant and polymer in ASP combination flooding, can improve both displacing efficiency and swept efficiency due to the increase of viscosity of displacing liquid and decrease in interfacial tension between oil and water. Emulsion abil

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19

Gbadamosi, Afeez, Shirish Patil, Muhammad Shahzad Kamal, et al. "Application of Polymers for Chemical Enhanced Oil Recovery: A Review." Polymers 14, no. 7 (2022): 1433. http://dx.doi.org/10.3390/polym14071433.

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Polymers play a significant role in enhanced oil recovery (EOR) due to their viscoelastic properties and macromolecular structure. Herein, the mechanisms of the application of polymeric materials for enhanced oil recovery are elucidated. Subsequently, the polymer types used for EOR, namely synthetic polymers and natural polymers (biopolymers), and their properties are discussed. Moreover, the numerous applications for EOR such as polymer flooding, polymer foam flooding, alkali–polymer flooding, surfactant–polymer flooding, alkali–surfactant–polymer flooding, and polymeric nanofluid flooding ar

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20

John, Abraham, Choongyong Han, Mojdeh Delshad, Gary A. Pope, and Kamy Sepehrnoori. "A New Generation Chemical Flooding Simulator." SPE Journal 10, no. 02 (2005): 206–16. http://dx.doi.org/10.2118/89436-pa.

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21

Braconnier, Benjamin, Eric Flauraud, and Quang Long Nguyen. "Efficient Scheme for Chemical Flooding Simulation." Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 69, no. 4 (2014): 585–601. http://dx.doi.org/10.2516/ogst/2013189.

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22

Karambeigi, M. S., R. Zabihi, and Z. Hekmat. "Neuro-simulation modeling of chemical flooding." Journal of Petroleum Science and Engineering 78, no. 2 (2011): 208–19. http://dx.doi.org/10.1016/j.petrol.2011.07.012.

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23

Sugihardjo, Sugihardjo. "SURFACTANT PROPERTIES EVALUATION FOR CHEMICAL FLOODING." Scientific Contributions Oil and Gas 31, no. 3 (2022): 34–39. http://dx.doi.org/10.29017/scog.31.3.1014.

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The need of EOR techniques in the late field production period is essential to get the third wind of incremental oil. Chemical injections are proven technologies not only at the laboratory scale but also at the field scale which have been implemented in many parts of the world. Surfactant is an important chemical in this technology, which mostly has been used to reduce the capillary trap of the oil in the reservoirs. The selection of surfactant type which is suitable for a specific oil field to increase the oil production should fulfill the selection criteria. Laboratory works firstly should b

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24

Wu, Wen Xiang, Deng Hui Mu, and Qing Dong Liu. "Study on Physical Simulation Experiments of Different Chemical Displacement Systems." Advanced Materials Research 201-203 (February 2011): 2562–66. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.2562.

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In the reservoir condition of Liaohe oil field, the indoor physical simulation experiments of polymer / surfactant binary combination flooding and polymer / surfactant / alkali (ASP) flooding in the artificial cores have been conducted. The results show that enhanced oil recovery of polymer flooding is about 24.4%, by utilizing experiment project that polymer molecular weight is 19 million, main slug concentration is 1500mg/L. Binary flooding system that molecular weight of polymer is 19 million, main slug concentration is 1500mg/L, 0.3% surfactant YR has improved the oil recovery by 30.1%. Th

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25

Li, Jierui, Weidong Liu, Guangzhi Liao, Linghui Sun, Sunan Cong, and Ruixuan Jia. "Chemical Migration and Emulsification of Surfactant-Polymer Flooding." Journal of Chemistry 2019 (October 20, 2019): 1–8. http://dx.doi.org/10.1155/2019/3187075.

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With a long sand-packed core with multiple sample points, a laboratory surfactant-polymer flooding experiment was performed to study the emulsification mechanism, chemical migration mechanism, and the chromatographic separation of surfactant-polymer flooding system. After water flooding, the surfactant-polymer flooding with an emulsified system enhances oil recovery by 17.88%. The water cut of produced fluid began to decrease at the injection of 0.4 pore volume (PV) surfactant-polymer slug and got the minimum at 1.2 PV. During the surfactant-polymer flooding process, the loss of polymer is sma

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26

Gao, Hui, Chen Wang, Lanxiao Hu, and Huazhou Andy Li. "ENHANCING CO2 FLOODING EFFICIENCY BY CHEMICAL FLOODING: A NUCLEAR MAGNETIC RESONANCE STUDY." Special Topics & Reviews in Porous Media: An International Journal 9, no. 2 (2018): 145–54. http://dx.doi.org/10.1615/specialtopicsrevporousmedia.v9.i2.40.

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27

Guo, Hu, Ma Dou, Wang Hanqing, et al. "Proper Use of Capillary Number in Chemical Flooding." Journal of Chemistry 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/4307368.

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Capillary number theory is very important for chemical flooding enhanced oil recovery. The difference between microscopic capillary number and the microscopic one is easy to confuse. After decades of development, great progress has been made in capillary number theory and it has important but sometimes incorrect application in EOR. The capillary number theory was based on capillary tube bundles and Darcy’s law hypothesis, and this should always be kept in mind when used in chemical flooding EOR. The flow in low permeability porous media often shows obvious non-Darcy effects, which is beyond Da

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28

Yin, Melinda H., Edwin A. Gutierrez-Rodriguez, Ana I. Vargas, and Bruce Schaffer. "Chemical Priming with Brassinosteroids to Mitigate Responses of Avocado (Persea americana) Trees to Flooding Stress." Horticulturae 8, no. 12 (2022): 1115. http://dx.doi.org/10.3390/horticulturae8121115.

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Priming involves the exposure of plants to a mild stress to increase tolerance to a more intense stress in the future. Chemical priming with brassinosteroids reduces the negative effects of flooding on the physiology and survival of some plant species. Avocado trees are very susceptible to flooding, and flooding susceptibility is related to the rootstock, which is often derived from seeds. In this study, the effects of chemical priming with two brassinosteroids, 28-homobrassinolide or 24-epibrassinolide, to improve the tolerance of avocado (Persea americana Mill.) trees to short-term flooding

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29

Lieu, V. T., S. G. Miller, and S. Miller. "A Laboratory Study of Chemical Reactions With Reservoir Sand in the Recovery of Petroleum by Alkaline Flooding." Society of Petroleum Engineers Journal 25, no. 04 (1985): 587–93. http://dx.doi.org/10.2118/12561-pa.

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Abstract This paper presents the results of a study of the chemical reactions between alkaline chemical solutions and petroleum reservoir sand material. Long Terms tudies were made of alkaline solution flow through reservoir sandpacks. Analyses were conducted to determine the chemical compositions of the effluents. The results obtained are related to the mineral content of the reservoirs and material. Individual chemical reactions of various minerals are discussed. It appears that there is an important initial combination of rapid reversible adsorption and chemical reactions followed by slower

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30

Yu, Qiannan, Yikun Liu, Shuang Liang, et al. "Characteristics of increasing displacement efficiency by surface-active polymer flooding for enhancing oil recovery." Journal of Petroleum Exploration and Production Technology 11, no. 3 (2021): 1403–14. http://dx.doi.org/10.1007/s13202-021-01117-1.

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AbstractSurface-active polymer is a novel multifunctional active polymer applied for enhancing oil recovery which has both viscosity-increasing ability and surface activity. Experiments were carried out to indicate basic physicochemical properties of surface-active polymer and to study on differences of properties between surface-active polymer and other chemical flooding agents, and characteristics of increasing displacement efficiency by surface-active polymer flooding have been tested. Experimental results show that the molecular aggregation conformation, viscosity performance and flow capa

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31

Wang, Qunyi, Wenshuang Geng, Fuquan Luo, Changcheng Gai, Xuena Zhang, and Xiao Gu. "3D Physical Simulation Experiment of Edge Water Reservoir by Polymer/Surfactant Binary Flooding." Journal of Chemistry 2020 (May 13, 2020): 1–9. http://dx.doi.org/10.1155/2020/7932381.

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To investigate the enhanced oil recovery (EOR) technology by chemical flooding in an edge water reservoir, a 3D physical simulation experimental device for the edge water reservoir was developed, and polymer/surfactant binary flooding experiments were carried out under different edge water energies. In addition, the effect and mechanism of binary flooding on EOR under different edge water energies were comprehensively analyzed. Experimental results show that edge water intrusion considerably affects EOR by binary flooding. The stronger the edge water energy, the worse the effect of EOR by bina

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32

Chen, Tao Ping, Na Wang, and Ru He. "Experimental Research on Using Horizontal Well with Chemical Flooding to Exploit Remaining Oil of Side Interlayer after Polymer Flooding." Advanced Materials Research 962-965 (June 2014): 484–88. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.484.

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In order to study the influence of horizontal well with chemical flooding on remaining oil of side interlayer after polymer flooding, experiments about high concentration polymer flooding, polymer activator alternating flooding and variable concentration polymer flooding are completed, after determining optimum position of horizontal well and the way of injection and production of water flooding and polymer flooding. Results show that the three methods all can improve recovery efficiency of side interlayer after polymer flooding effectively; horizontal well with variable concentration polymer

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33

Sugihardjo, Sugihardjo. "Polymer Properties Determination For Designing Chemical Flooding." Scientific Contributions Oil and Gas 34, no. 2 (2022): 127–37. http://dx.doi.org/10.29017/scog.34.2.799.

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Waterflooding became the standard practice in many reservoirs formation in petroleum industries, the strengths and weaknesses of the methods were quite well established. In particular, the inefficiency of the waterflood oil displacement mechanism as a result of either an unfavorable mobility ratio or heterogeneity was largely identified. Therefore, chemicals injections as the improvement displacement processes had been proposed to support petroleum industries to recover the production of oil. Chemical injection normally consists of alkaline, surfactant, and polymer (ASP). They could be injecte

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34

Bhuyan, Debojit, Larry W. Lake, and Gary A. Pope. "Mathematical Modeling of High-pH Chemical Flooding." SPE Reservoir Engineering 5, no. 02 (1990): 213–20. http://dx.doi.org/10.2118/17398-pa.

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35

Shipaeva, Maria, Vladislav Sudakov, Danis Nurgaliev, Dinar Mingazov, and Anastasia Startseva. "SURFACTANT–POLYMER FLOODING: GEOCHEMICAL MONITORING OF THE PROPERTIES OF FORMATION FLUIDS AT THE IMPACT AREA." EARTH & PLANETARY INSIGHTS - Scientific Peer-Reviewed Journal of the SWS Scholarly Society 1, no. 1 (2024): 37–48. http://dx.doi.org/10.35603/epi24.1.04.

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Chemical flooding methods improve oil extraction after standard waterflooding processes. Chemical EOR methods modify different properties of fluids and/or rock to mobilize the remaining oil. It is expected that the residual oil will be different in properties than conventional. A new technology is presented to study a surfactant–polymer flooding, based on a periodic sampling and measuring properties of oil and water during 15 months. The study area is a terrigenous reservoir with 3 chemical injection wells and 16 production wells. High-precision mass spectrometry methods were carried out on ea

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36

Soltanbekova, Karlygash, Gaukhar Ramazanova, Uzak Zhapbasbayev, and Zhenis Kuatov. "Filtration Experiments for Assessing EOR Efficiency in High-Viscosity Oil Reservoirs: A Case Study of the East Moldabek Field, Kazakhstan." Processes 13, no. 4 (2025): 1069. https://doi.org/10.3390/pr13041069.

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This study is dedicated to fundamental research on evaluating the effectiveness of enhanced oil recovery (EOR) methods for high-viscosity oil reservoirs. This paper presents the results of filtration experiments assessing the application of thermal, chemical, and gas-based EOR techniques to reservoir cores of high-viscosity oil, using the East Moldabek field in Kazakhstan as a case study. Experimental studies were conducted on the Cretaceous horizons M-II and M-III as well as the Jurassic horizon J-IV. The obtained production data from the East Moldabek wells indicated the low efficiency of co

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37

Sony, Ahmed, Hamdan Suhaimi, and Laili Che Rose. "Recovery of Crude Oil by Chemical Flooding Method using SDS and Gum Arabic Mixtures." Oriental Journal of Chemistry 35, no. 2 (2019): 571–76. http://dx.doi.org/10.13005/ojc/350210.

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A group of chemicals known as surfactants are widely used in industries. Their presence in any formulation, albeit little, exhibited superior functionality of the end-products. The dual hydrophobic and hydrophilic moiety of the structure have been shown to be responsible for reduction of surface/ interfacial tension and formation of micelles. In this work, a chemical flooding method using sodium dodecyl sulphate, SDS and its mixture with gum arabic, were carried out to study the recovery and efficiency of extracting the residual oil from the oil reservoirs. Two sets of experiments namely SDS a

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38

Naukenova, A. Zh, B. E. Bekbauov та A. G. Amangossova. "Developing methodology and experimental procedure эfor experimental microfluidic study of chemical enhanced oil recovery". Bulletin of the National Engineering Academy of the Republic of Kazakhstan 87, № 1 (2023): 149–59. http://dx.doi.org/10.47533/2020.1606-146x.226.

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The concern of this research was to review the different methodology on microfluidic experiments conducted to study chemical enhanced oil recovery methods on micromodel chips. In general, there are several ways to study EOR methods such core flooding and microfluidics. The disadvantage of first method is that the flow processes inside the core sample cannot be imagined. Hence, the second method helps us to fully visualize how fluid flow behaviour occurs though the porous medium of the rocks. The various chemical EOR processes such as surfactant flooding, polymer flooding and ASP flooding were

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He, Chen, Yu, Wen, and Liu. "Optimization Design of Injection Strategy for Surfactant-Polymer Flooding Process in Heterogeneous Reservoir under Low Oil Prices." Energies 12, no. 19 (2019): 3789. http://dx.doi.org/10.3390/en12193789.

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Surfactant–polymer (SP) flooding has significant potential to enhance oil recovery after water flooding in mature reservoirs. However, the economic benefit of the SP flooding process is unsatisfactory under low oil prices. Thus, it is necessary to reduce the chemical costs and improve SP flooding efficiency to make SP flooding more profitable. Our goal was to maximize the incremental oil recovery of the SP flooding process after water flooding by using the equal chemical consumption cost to ensure the economic viability of the SP flooding process. Thus, a systematic study was carried out to in

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40

Zhang, Yi, Chun Ru Fu, You Yi Zhu, Qun Zhang, and Jie Wu. "Nonlinear Regression Analysis of Binary Flooding Recovery Influence Factors." Advanced Materials Research 881-883 (January 2014): 1696–705. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1696.

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To better reveal the laws of binary (SP) oil flooding, based on the physical simulative experimental results of Berea core (400mD), the nonlinear regression method of the probability statistics theory and SPSS software was applied to conduct a weight analysis for the main influence factors of the binary oil flooding. The results show that the three factors of the viscosity of binary system, the composite emulsifying index and the interfacial tension affect the chemical flooding recovery and the total recovery significantly. The results of the forced introduction method show that the reliabilit

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41

Shakeel, Mariam, Aida Samanova, Peyman Pourafshary, and Muhammad Rehan Hashmet. "Capillary Desaturation Tendency of Hybrid Engineered Water-Based Chemical Enhanced Oil Recovery Methods." Energies 14, no. 14 (2021): 4368. http://dx.doi.org/10.3390/en14144368.

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Several studies have shown the synergetic benefits of combining various chemical enhanced oil recovery (CEOR) methods with engineered waterflooding (EWF) in both sandstones and carbonate formations. This paper compares the capillary desaturation tendency of various hybrid combinations of engineered water (EW) and CEOR methods with their conventional counterparts. Several coreflood experiments were conducted, including EW-surfactant flooding (EWSF), EW-polymer flooding (EWPF), EW-alkali-surfactant flooding (EWASF), EW-surfactant-polymer flooding (EWSPF), and EW-alkali-surfactant-polymer floodin

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42

An, Yuxiu, Xiutian Yao, Jinpan Zhong, Shaocong Pang, and Hailong Xie. "Enhancement of oil recovery by surfactant-polymer synergy flooding: A review." Polymers and Polymer Composites 30 (January 2022): 096739112211458. http://dx.doi.org/10.1177/09673911221145834.

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With the depletion of conventional resources, it is necessary to enhance the recovery of remaining oil. The tertiary oil recovery chemical flooding is the most promising for enhanced oil recovery (EOR). The use of alkali in chemical flooding produces fouling with the formation, which brings new challenges to chemical flooding EOR. So, alkali-free surfactant-polymer (SP) flooding is used as a new solution for EOR. The polymer makes the displacing fluid have a high viscosity and increases the swept volume. The surfactant can decrease the interfacial tension and emulsify the crude oil while the d

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Flaaten, Adam, Quoc P. Nguyen, Gary A. Pope, and Jieyuan Zhang. "A Systematic Laboratory Approach to Low-Cost, High-Performance Chemical Flooding." SPE Reservoir Evaluation & Engineering 12, no. 05 (2009): 713–23. http://dx.doi.org/10.2118/113469-pa.

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Summary We present a systematic study of laboratory tests of alternative chemical formulations for a chemical flood design and application. Aqueous and microemulsion phase behavior tests have previously been shown to be a rapid, inexpensive, and highly effective means to select the best chemicals and minimize the need for relatively expensive coreflood tests. Microemulsion phase behavior testing was therefore conducted using various combinations of surfactants, cosolvents, and alkalis with a particular crude oil and in reservoir conditions of interest. Branched alcohol propoxy sulfates and int

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Fan, Meng, Yi Kun Liu, and Shuang Liang. "The Characterization of the Rock Microscopic Pore Structure before and after Strong Base ASP Flooding." Advanced Materials Research 941-944 (June 2014): 2596–600. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.2596.

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ASP flooding technology is an important means to further improve oil recovery of oil field later high water-cut stage. As is found in pilot test of ASP flooding, in the process of injecting ASP combinational flooding fluid, alkaline chemical react with the rocks minerals in reservoir and dissolve and elute the portion of the silicon in rocks minerals after injecting into formation. Due to the mixed flow occurred in near well bore zone and the changes in pressure and temperature, produced liquid produces mixed silicon scale near the well .The serious scaling phenomenon has affected the producti

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Liu, De Xin, and Li Tao Yao. "Interfacial Activity and Adsorption Behavior of Petroleum Oxidation Soap." Advanced Materials Research 168-170 (December 2010): 121–26. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.121.

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Chemical flooding is a promising method of enhanced oil recovery through improving the oil displacement efficiency. The surfactants can effectively reduce the interfacial tension (IFT) between the injection fluid and the residual oil. Petroleum oxidation soap (POS) as a surfactant has the potential for use in chemical flooding owing to its easily gained, cheap and favorable behavior. This study was an attempt to investigate the interfacial activity of POS as well as the adsorption characteristic on oil sand. The experimental results provided a practical instrument for the application of POS in

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Choi, Byung In, Moon Sik Jeong, and Kun Sang Lee. "Effects of Bottom Aquifer on the Productivity of Chemical Flooding Applied to Multi-Layered Heterogeneous Reservoirs." Applied Mechanics and Materials 316-317 (April 2013): 791–94. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.791.

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Complex geological properties of oil reservoirs affect productivity of chemical flooding. Presence of bottom-water aquifer combined with heterogeneous reservoirs has been regarded as a problem which brings out reduction of recovery factor and high water-cut. A numerical reservoir simulator is used to investigate effects of aquifer on the performance of chemical flooding. By including the effects of bottom-water aquifer, productivity decreases significantly compared with that from non-aquifer case. Results from this study emphasize the importance of an accurate assessment of performance before

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Ahmadi, Mohammad Ali. "Developing a Robust Surrogate Model of Chemical Flooding Based on the Artificial Neural Network for Enhanced Oil Recovery Implications." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/706897.

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Application of chemical flooding in petroleum reservoirs turns into hot topic of the recent researches. Development strategies of the aforementioned technique are more robust and precise when we consider both economical points of view (net present value, NPV) and technical points of view (recovery factor, RF). In current study many attempts have been made to propose predictive model for estimation of efficiency of chemical flooding in oil reservoirs. To gain this end, a couple of swarm intelligence and artificial neural network (ANN) is employed. Also, lucrative and high precise chemical flood

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Janssen, Martijn T. G., Rashidah M. Pilus, and Pacelli L. J. Zitha. "A Comparative Study of Gas Flooding and Foam-Assisted Chemical Flooding in Bentheimer Sandstones." Transport in Porous Media 131, no. 1 (2019): 101–34. http://dx.doi.org/10.1007/s11242-018-01225-3.

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Al-Ibadi, Hasan, Karl D. Stephen, and Eric J. Mackay. "Semi-Analytical Solution of Chemical Flooding in Heterogeneous Non-Communicating Layers with a Focus on Low Salinity Water Flooding." Transport in Porous Media 135, no. 1 (2020): 101–35. http://dx.doi.org/10.1007/s11242-020-01471-4.

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Abstract Chemical flooding has been implemented intensively for some years to enhance sweep efficiency in porous media. Low salinity water flooding (LSWF) is one such method that has become increasingly attractive. Historically, analytical solutions were developed for the flow equations for water flooding conditions, particularly for non-communicating strata. We extend these to chemical flooding, more generally, and in particular for LSWF where salinity is modeled as an active tracer and changes relative permeability. Dispersion affects the solutions, and we include this also. Using fractional

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Ge, Ji Jiang, Hai Hua Pei, Gui Cai Zhang, Xiao Dong Hu, and Lu Chao Jin. "Investigation into the Functions of Alkali and Surfactant in Chemical Flooding for Enhanced Heavy-Oil Recovery." Advanced Materials Research 524-527 (May 2012): 1816–20. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1816.

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In this study, a comparative study of alkaline flooding and alkali-surfactant flooding were conducted for Zhuangxi heavy oil with viscosity of 325 mPa•s at 55 °C. The results of core flooding tests show that the tertiary oil recovery of alkali-surfactant flooding are lower than those of alkaline-only flooding, in spite of the coexistence of the surfactant and alkali can reduce the IFT between the heavy oil and aqueous phase to an ultralow level. Further flood study via glass-etching micromodel tests demonstrates that injected alkaline-only solution can penetrate into the oil phase and creates

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