Journal of Petroleum Exploration and Production Technology
·
2025
·Vol. 15
·期 3
·1-17
·
IF 3.2
Peng Mingguo,Wen Qing,Wang Luhan,Liang Qifan,Yang Jun,Zhang Qi,Zhao Jing
Due to their high viscoelasticity and excellent plugging ability, surfactant foam systems can mitigate the effects of heterogeneity and have emerged as a key technology in tertiary oil recovery in recent years. Moreover, achieving ultra-low oil/water interfacial tension (IFT) is critical for enhanced oil recovery (EOR), as it facilitates the deformation and mobilization of oil droplets from pores. However, conventional surfactant systems often struggle to simultaneously achieve ultra-low oil/water IFT and high foam performance. To overcome this limitation, this study developed a composite surfactant system by combining small-molecule anionic and cationic surfactants with a nonionic surfactant, enabling both ultra-low oil/water IFT and high foam performance. The compound surfactants were evaluated for IFT, emulsification performance, and foam performance within a concentration range of 1–10 mM. Based on the comprehensive evaluation results, a concentration of 4 mM was selected for further investigation in a heterogeneous micro-model oil displacement experiment to analyze its displacement behavior. The results demonstrated that at a concentration of 2 mM, the foaming agent achieved the lowest oil/water IFT of 9.834 × 10 − 4 mN/m, while at 4 mM, the foam composite index reached its peak value of 12,960 mL·min. The ability to reduce IFT was found to be approximately proportional to foam performance and inversely proportional to emulsification performance. The heterogeneous micro-model oil displacement experiment demonstrated that chemical flooding increased the recovery ratio by 24% compared to water flooding, with the foam action zone exhibiting significantly enhanced displacement efficiency. The novelty of this study lies in the use of surfactants with different properties to construct a foam system with ultra-low oil/water IFT and excellent foam performance, as well as the execution of heterogeneous micro-model displacement experiments. This work provides valuable insights for the design of fracture carbonate foaming agents and future studies on EOR.
研究领域:
石油工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SURFACTANTS AND DETERGENTS
·
2010
·Vol. 14
·期 3
·317-324
·
IF 0.795
Cui Zheng-gang,Song Hong-xing,Yu Jun-jie,Jiang Jian-zhong,Wang Feng
Alkali-surfactant-polymer (ASP) flooding has been considered to be one of the useful tertiary oil recovery techniques. However, field tests in China have revealed that serious side effects may occur due to using alkali. Thus alkali-free SP flooding is more favorable in China. Unfortunately, surfactants effective in ASP flooding are usually ineffective in the absence of alkali and new surfactants need to be designed. In this paper N -(3-Oxapropanoxyl)dodecanamide as a pure compound and a mixture of homologues with narrow EO number distribution, synthesized by the reaction of lauroyl chloride with diglycolamine and addition of one ethylene oxide to coconut monoethanolamide respectively, are examined for their adaptability in SP flooding. It is found that, when mixed with betaines, both products can reduce Daqing crude oil/connate water interfacial tension to a magnitude of 10 −3 –10 −4 mNm −1 at 45 °C in a wide surfactant concentration range, 0.01–0.5 wt%, and oil displacement tests using natural cores indicates that a tertiary oil recovery of 18.6 ± 0.4% OOIP can be achieved by SP flooding with the N -(3-Oxapropanoxyl)dodecanamide as the main surfactant without adding any alkaline agent and neutral electrolyte. N -(3-Oxapropanoxyl)dodecanamide, as a nonionic surfactant without a cloud point and producible industrially from renewable materials, is an ideal surfactant for SP flooding in the absence of an alkaline agent.
研究领域:
石油工程
·
化学工程
✓ 已验证
DOI
高影响因子
Green Processing and Synthesis
·
2021
·Vol. 10
·期 1
·219-229
·
IF 2.83
Yiming Xu,Suli Liu,Weijun Meng,Hua Yuan,Weibao Ma,Xiangqian Sun,Jianhong Xu,Bin Tan,Ping Li
Heavy alkyl benzene sulfonates are inexpensive surfactants that are extensively used as oil-displacing agents during tertiary oil recovery. Among these, C 16–18 heavy alkyl benzene sulfonates possess an excellent ability to reduce the oil-water interface tension. In this study, hexadecylbenzene sulfonic acid (HBSA) was synthesised in a continuous stirred-tank microreactor using a continuous method with 1,2-dichloroethane (EDC) dilution. Post-sulfonation liquid SO 3 solution was used as a sulfonating agent for hexadecylbenzene (HDB). The effects of reaction conditions, such as the SO 3 :HDB molar ratio, sulfonation temperature and sulfonation agent concentration, on the yield and purity of the product were investigated. Optimisation of the reaction process yielded high-quality HBSA samples with a purity exceeding 99 wt%. The continuous sulfonation process significantly enhanced the production and efficiency in the case of a considerably short residence time (10 s) in the reactor, without the need for aging. The results of this study demonstrate significant potential for application in industrial production.
研究领域:
化学工程
·
表面活性剂化学
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石油工程
✓ 已验证
DOI
高影响因子
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
·
2022
·
IF 5.168
Erdong Yao,Yuechun Wang,Hao Bai,Lianqi Sheng,Jianhua Guo,Junjian Li,Kun Zhang,Guolin Yu,Fujian Zhou
With the development of nanotechnology, nanomaterials have shown good potential for enhanced oil recovery , which is of great significance for oil and gas production. Compared with nanoparticles and nanoemulsions , nanosheets have higher interfacial activity due to their two-dimensional structure, which can form a climbing film on the interface of oil-water and efficiently improve oil recovery. However, the influencing factors of the film-climbing effect and the relationship between the film-climbing effect and enhanced oil recovery are still not clear. In this paper, small-sized water-soluble nanosheets which were molybdenum disulfide (MoS 2 ) nanosheets (30–50 nm) were synthesized using a one-step hydrothermal method , which have strong stability during the flooding test. And then, modifiers with different carbon chain lengths were used to modify the hydrophile-lipophile balance (HLB) of nanosheets. Next, the influencing factors of nanosheets' climbing film were discussed, and the two-phase height index was innovatively used to characterize the strength of the nanosheets climbing film in the oil-water system. The results show that the longer the carbon chain length of the modifier, the closer the nanosheets are to neutral wet with stronger interfacial activity. In addition, molybdenum disulfide nanosheets can produce a climbing film at the oil-water interface, which is related to salinity , concentration, and diameter of test jar. In a word, the oil displacement efficiency can be characterized by the two-phase height index, and the higher the index, the higher the oil displacement efficiency. This makes us fully realize the importance of climbing film in tertiary oil recovery, and provides a new method for the effective development of oil and gas resources.
研究领域:
纳米技术
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石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
TENSIDE SURFACTANTS DETERGENTS
·
2021
·Vol. 58
·期 6
·468-474
·
IF 1.049
Zhonghua Zuo,Ming Zhou,Mao Liao,Pengao Peng,Jingfeng Zhang
Surfactants are very often used in tertiary oil production. However, the conventional surfactants cannot be used in high salinity reservoirs of tertiary oil production because the high salinity leads to the deactivation of the surfactants. Gemini sulpho-betaine surfactants have been developed to meet the requirements of tertiary oil production in such reservoirs. In this study, the Gemini sulphobetaine surfactant (bis{[(N-methyl-N-(3-alkoxy-2-hydroxy)propyl-N-(3-sulfonate)propyl]methylene}) was prepared by etherification, ring opening reaction and sulfonation reaction with decyl alcohol, epichlorohydrin, N,N’-dimethyl ethylene diamine and 1,3-propanesultone. The experimental conditions obtained are: the ratio of 1,3-propanesulfonic acid lactone to tertiary amine intermediate = 2.3 : 1, reaction temperature = 70°C and reaction time = 11 h. The analysis of the infrared spectrum showed that the structure of the synthesised substance corresponds to that of a Gemini sulphobetaine surfactant. The chemical shifts of the groups were determined by 1 HNMR structural characterisation of the products. The surface tension, emulsifying properties, foaming properties and wetting properties were investigated. The results showed that the surfactant has good foaming properties and good compatibility in a high salt environment.
研究领域:
化学工程
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石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Royal Society Open Science
·
2020
·Vol. 7
·期 5
·
IF 2.646
Cancan Bai,Yangchuan Ke,Xu Hu,Liang Xing,Yi Zhao,Shichao Lu,Yuan Lin
In this research, a novel amphiphilic hydrophobically associative polymer nanocomposite (ADOS/OMMT) was prepared using acrylamide (AM), sodium 4-vinylbenzenesulfonate (SSS), N, N′-dimethyl octadeyl allyl ammonium bromide (DOAAB) and organo-modified montmorillonite (OMMT) through in situ polymerization. Both X-ray diffraction patterns and transmission electron microscopy images verified the dispersion morphology of OMMT in the copolymer matrix. Then, the effect of the introduction of OMMT layers on the copolymer properties was studied by comparing with pure copolymer AM/SSS/DOAAB (ADOS). The thermal degradation results demonstrated that the thermal stability of the ADOS/OMMT were better than pure copolymer ADOS. During the solution properties tests, ADOS/OMMT nanocomposite was superior to ADOS in viscosifying ability, temperature resistance, salt tolerance, shear resistance and viscoelasticity, which was because OMMT contributed to enhance the hydrophobic association structure formed between polymer molecules. Additionally, the ADOS/OMMT nanocomposite exhibited more excellent interfacial activity and crude oil emulsifiability in comparison to pure copolymer ADOS. These performances indicated ADOS/OMMT nanocomposite had good application prospects in tertiary recovery.
研究领域:
材料科学
·
聚合物化学
·
纳米技术
·
石油工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SURFACTANTS AND DETERGENTS
·
2022
·Vol. 25
·期 4
·527-536
·
IF 1.972
Jun Chen,Zhiyu Huang,Dongfang Liu,Ying Zhang,Hanmin Li,Hongsheng Lu
In the process of the tertiary recovery of oil and gas resources, it is necessary to use external fluids to displace the crude oil in the reservoir. Whether the crude oil on the surface of the rock can be effectively displaced and the wettability of the rock can be changed to avoid re-adsorption by the crude oil is directly related to the level of oil recovery. Therefore, it is critical to study the cleaning and wettability reversal of reservoir rock surface. Because microemulsions have outstanding performance in changing the wettability of rocks and solubilizing crude oil, this paper uses cetyl trimethyl ammonium bromide (CTAB) as a surfactant and n -butanol as a co-surfactant to prepare microemulsions. The performance of microemulsions with different microstructures on the cleaning and wettability changes of crude oil on the rock surface were studied. The results show that the water-in-oil (W/O) microemulsion has good cleaning efficiency, and the oil removal rate on the sandstone core surface can reach 79.65%. In terms of changing the wettability of the rock surface, W/O, bi-continuous phase (B.C.) and oil-in-water (O/W) microemulsions can change the core surface from lipophilic to hydrophilic. And the effects of the B.C. and O/W microemulsions are more obvious. The microemulsion system that was prepared based on cationic surfactants has a good application prospect in changing the wettability of the reservoir and cleaning the adsorbed crude oil.
研究领域:
石油工程
·
化学工程
·
表面活性剂科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）