不同复配菌群乳化降解稠油效果研究
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摘要
针对华北油田典型稠油油藏开发难度大,原油物性差的特点,构建了对该区块原油具有良好乳化降解效果的复配菌群,并对各复配菌群的驱油效果进行了评价研究。结果表明,构建的红球菌+铜绿假单胞菌复配菌群(H+T)对原油乳化降解效果优于其他复配菌群,可降低油水表面张力至36mN/m,降解后的原油乳状液粒径分布均匀,分散性好,稳定性系数低,乳状液稳定程度提高,流动性增强,稠油物性改善。通过物理模拟驱油实验进一步验证了该复配菌群可提高原油采收率8.3%,为其应用于现场试验提供了指导。
Based on the difficult development of typical heavy oil reservoirs in Huabei Oilfield and the poor physical properties of crude oil,a complex microflora with good emulsification and degradation effect for crude oil in this block was constructed,and the oil displacement effect of each complex microbial group was evaluated and studied.The results show that the effect of the construction of Rhodococcus aeruginosa and Pseudomonas aeruginosa(H+T)on the emulsification and degradation of crude oil is better than that of other mixed bacteria,and the surface tension of oil and water is reduced to 36 mN/m.After degradation,the particle size distribution of crude oil emulision is uniform,and the dispersion is good with low stability coefficient.The stability of emulsion is improved with enhanced,fluidity,and the physical properties of heavy oil are improved.Through the physical simulation oil displacement experiment,it isfurther verified that the compound bacteria group increases the oil recovery by 8.3%,which providesguidance for its application to the field test.
Based on the difficult development of typical heavy oil reservoirs in Huabei Oilfield and the poor physical properties of crude oil,a complex microflora with good emulsification and degradation effect for crude oil in this block was constructed,and the oil displacement effect of each complex microbial group was evaluated and studied.The results show that the effect of the construction of Rhodococcus aeruginosa and Pseudomonas aeruginosa(H+T)on the emulsification and degradation of crude oil is better than that of other mixed bacteria,and the surface tension of oil and water is reduced to 36 mN/m.After degradation,the particle size distribution of crude oil emulision is uniform,and the dispersion is good with low stability coefficient.The stability of emulsion is improved with enhanced,fluidity,and the physical properties of heavy oil are improved.Through the physical simulation oil displacement experiment,it isfurther verified that the compound bacteria group increases the oil recovery by 8.3%,which providesguidance for its application to the field test.
引文
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[17]曾伟男.阴/非离子表面活性剂乳化原油性能研究[D].大庆:东北石油大学,2012.ZENG Weinan.Study on the properties of emulsified crude oils by nonionic surfactants[D].Daqing:Northeast Petroleum University,2012.(in Chinese)
[18]吕宇玲,何利民,丁慎圆,等.原油-水分散流中液滴粒径及压降规律研究[J].工程热物理学报,2013,34(3):472-475.LUYuling,HE Limin,DNG Shenyuan,et al.Investigation of droplet size and pressure drop in crude oil-water dispersed flows[J].Journal of Engineering Theromophysics,2013,34(3):472-475.(in Chinese)
[19]姚盛宇,蒋其辉,龚福忠,等.Span 80-癸烷-D2EHPA-H2O液膜体系的界面膜扩张黏弹性研究[J].中国科技论文,2016,11(6):619-623.YAO Shengyu,JIANG Qihui,GONG Fuzhong,et al.Study on dilational viscoelasticities of interfacial film of Span-decane-D2EHPA-H2Oemulsion liquid membrane system[J].China Sciencepaper,2016,11(6):619-623.(in Chinese)
[2]刘兆江,彭伟,王东生.微生物驱油技术研究与发展[J].科技创新导报,2010,23(28):53.LIU Zhaojiang,PENG Wei,WANG Dongsheng.Microbial flooding technology research anddevelopment[J].Science and Technology Innovation Herald,2010,23(28):53.(in Chinese)
[3]邓勇,易绍金.稠油微生物开采技术现状及进展[J].油田化学,2006,23(3):289-292.DENG Yong,YI Shaojin.The present situation and developments of microbial enhanced heavy oil recovery[J].Oilfield Chemistry,2006,23(3):289-292.(in Chinese)
[4]张晓博,洪帅,姜晗,等.微生物对稠油降解、降粘作用研究进展[J].当代化工,2016,45(3):617-620.ZHANG Xiaobo,HONG Shuai,JIANG Han,et al.Research progress in heavy oil bio-degradation technology[J].Contemporary Chemical Industry,2016,45(3):617-620.(in Chinese)
[5]王霞,潘成松,范舟,等.微生物采油技术的发展现状[J].石油地质与工程,2007,21(5):65-68.WANG Xia,PANG Chengsong,FAN Zhou,et al.Development siutation of mieorbe oil recovey technology[J].Petroleum Geology and Engineering,2007,21(5):65-68.(in Chinese)
[6]张廷山,兰光志,邓莉,等.微生物降解稠油及提高采收率实验研究[J].石油学报,2001,22(1):54-57.ZHANG Tingshan,LAN Guangzhi,DENG Li,et al.experiments on heaving oil degradation and enhancing oil recovery by microbial treatments[J].Acta Petrolei Sinica,2001,22(1):54-57.(in Chinese)
[7]曾国寿.石油地球化学[M].北京:石油工业出版社,1990:142-153.ZENG Guoshou.Petroleum geochemistry[M].Beijing:Petroleum Industry Press,1990:142-153.(in Chinese)
[8]王春明,李大平,刘世贵.稠油开采微生物的生理生化特征及其对原油特性的影响[J].石油学报,2008,28(5):89-92.WANG Chunming,LI Daping,LIU Shigui.Effects of biophysiological and biochemical characteristics of a strain ofmicrobacterium sp.on properties of thickened oil[J].Acta Petrolei Sinica,2008,28(5):89-92.(in Chinese)
[9]易绍金,邓勇.产表面活性剂菌在稠油乳化降粘中的实验研究[J].石油与天然气化工,2008,37(1):59-61.YI Shaojin,DENG Yong.Experimental study of surfactant producing bacteriain emulsifying and visbreaking viscous oil[J].Chemical Engineering of Oil and Gas,2008,37(1):59-61.(in Chinese)
[10]TL P,DUVAL B.Cerro Negro bitumen degradation by a consortium of marine benthic microorganisms[J].Environmental Science&Technology,2001,35(1):76-83.
[11]代学成,李东文,王东,等.新疆油田微生物开采稠油技术研究及矿场试验[J].特种油气藏,2003,10:114-119.DAI Xuecheng,LI Dongwei,WANG Dong,et al.Study and set test of MEOR for heavy oilin Xinjiang oilfeild[J].Special Oil and Gas Reservoir,2003,10:114-119.(in Chinese)
[12]齐献宝,王志明,姜晨华,等.生物采油技术在辽河油田稠油开采中的应用[J].油田化学,1999,16(1):60-63.QI Xianbao,WANG Zhiming,JIANG Chenhua,et al.Usesofmicrobes for enhanced production of viscous oil in Liaoning oilfields[J].Oilfield Chemistry,1999,16(1):60-63.(in Chinese)
[13]张飘石.微生物开发稠油技术研究[J].油气田地面工程,2006,25(9):26-27.ZHANG Piaoshi.Study on microbial development of viscious oil[J].Oil and Gas Field Engineering.2006,25(9):26-27.(in Chinese)
[14]邓丽君,曹亦俊.起泡剂溶液的表面张力对气泡尺寸的影响[J].中国科技论文,2014,9(12):1340-1343.DENG Lijun,CAO Yijun,Effect of surface tension on bubble size in frother solutions[J].China Sciencepaper,2014,9(12):1340-1343.(in Chinese)
[15]刘伟,刘琴,王坚.原油乳状液稳定性影响因素研究的新进展[J].油气田地面工程,2012,31(10):28-30.LIU Wei,LIU Qin,WANG Jian.New research progress of study on influencing factors of crude oil emulsion stability[J].Oil-Gas Field Surface Engineering,2012,31(10):28-30.(in Chinese)
[16]吴聃,鞠斌山,陈常红,等.基于微观驱替实验的剩余油表征方法研究[J].中国科技论文,2015,10(23):2707-2710.WU Dan,JU Binshan,CHEN Changhong,et al.Research on characterization method forresidual oil basedon microscopic displacement experiments[J].China Sciencepaper,2015,10(23):2707-2710.(in Chinese)
[17]曾伟男.阴/非离子表面活性剂乳化原油性能研究[D].大庆:东北石油大学,2012.ZENG Weinan.Study on the properties of emulsified crude oils by nonionic surfactants[D].Daqing:Northeast Petroleum University,2012.(in Chinese)
[18]吕宇玲,何利民,丁慎圆,等.原油-水分散流中液滴粒径及压降规律研究[J].工程热物理学报,2013,34(3):472-475.LUYuling,HE Limin,DNG Shenyuan,et al.Investigation of droplet size and pressure drop in crude oil-water dispersed flows[J].Journal of Engineering Theromophysics,2013,34(3):472-475.(in Chinese)
[19]姚盛宇,蒋其辉,龚福忠,等.Span 80-癸烷-D2EHPA-H2O液膜体系的界面膜扩张黏弹性研究[J].中国科技论文,2016,11(6):619-623.YAO Shengyu,JIANG Qihui,GONG Fuzhong,et al.Study on dilational viscoelasticities of interfacial film of Span-decane-D2EHPA-H2Oemulsion liquid membrane system[J].China Sciencepaper,2016,11(6):619-623.(in Chinese)