Effect of Hydrophobic Carbon Chain Length of Alkyl Betaine Surfactant on Spontaneous Imbibition of Low-permeability Core

doi:10.3969/j.issn.1006-6535.2021.04.014

Abstract

Abstract: In view of the influence of different hydrophobic carbon chain lengths of alkyl betaines with the same hydrophilic group structure on the imbibition mechanism, the influence of the hydrophobic carbon chain length of alkyl betaine on spontaneous imbibition under the conditions of high temperature, high salinity and low permeability conditions was analyzed by experiments conducted on spontaneous imbibition, contact angle and oil-water interfacial tension. The results showed that with the increase of carbon number of the hydrophobic group from 12 to 18, the degree of imbibition and recovery of the four alkyl betaines were 37.8%, 39.4%, 41.0% and 42.1%, respectively; the reverse imbibition was adopted; the contact angle decreased with the increase of carbon number, favorable to crude oil stropped from the core, and the interfacial tension decreased with the increase of carbon number, conducive to the deformation and flow of oil droplets, both of which promoted the imbibition. The experimental results were in line with the normalized recovery percent model, with a theoretical guidance for the application of alkyl betaine as a imbibition agent in low-permeability oil fields.

Key words: alkyl betaine, low permeability reservoir, amphoteric surfactant, spontaneous imbibition, interfacial tension, wettability

CLC Number:

TE357

Zhu Weiyao, Zhao Chengyuan, Ma Qipeng, Li Hua, Song Zhiyong. Effect of Hydrophobic Carbon Chain Length of Alkyl Betaine Surfactant on Spontaneous Imbibition of Low-permeability Core[J]. Special Oil & Gas Reservoirs, 2021, 28(4): 102-107.

References

[1] 翟怀建,张凤娟,张敬春,等.驱油用甜菜碱型两性表面活性剂综述[J].新疆石油科技,2018,28(4):63-66.
ZHAI Huaijian,ZHANG Fengjuan,ZHANG Jingchun,et al.Overview of betaine amphoteric surfactants for oil flooding[J].Xinjiang Petroleum Science & Technology,2018,28(4):63-66.
[2] 江敏,范洪富,张翼,等.渗吸剂体系基本性能对采收率的影响分析[J].特种油气藏,2019,26(3):138-142.
JIANG Min,FAN Hongfu,ZHANG Yi,et al.Effects of basic performance of imbibition system on oil recovery[J].Special Oil & Gas Reservoirs,2019,26(3):138-142.
[3] 武松.系列磺基甜菜碱表面活性剂的精细合成与性能[D].大庆:东北石油大学,2015.
WU Song.Fine synthesis and performance of Series sulfo betaine surfactants[D].Daqing:Northeast Petroleum University,2015.
[4] 杨柳.新型两性表面活性剂的分子有序组合体研究[D].大庆:东北石油大学,2013.
YANG Liu.Study on organized molecular assemblies of new amphoteric surfactants[D].Daqing:Northeast Petroleum University,2013.
[5] 李泽楠.甜菜碱表面活性剂乳化规律研究[D].大庆:东北石油大学,2016.
LI Zenan.Study on emulsification law of betaine surfactant[D].Daqing:Northeast Petroleum University,2016.
[6] 刘泉海,罗福全,黄海龙,等.边底水油藏化学驱提高采收率实验研究[J].特种油气藏,2017,24(6):143-147.
LIU Quanhai,LUO Fuquan,HUANG Hailong,et al.Experimental study on enhanced oil recovery by chemical flooding in reservoir with edge and bottom water[J].Special Oil & Gas Reservoirs,2017,24(6):143-147.
[7] 倪涛,夏亮亮,刘昭洋,等.不同碳链长度的羟基丙磺基甜菜碱合成及性能研究[J].油田化学,2017,34(3):487-490.
NI Tao,XIA Liangliang,LIU Zhaoyang,et al.Preparation and properties of hydroxyl propylsulfobetaine with different hydrophobic carbon chain lengths[J].Oilfield Chemistry,2017,34(3):487-490.
[8] 林士英.烷基羟基磺基甜菜碱黏弹性表面活性剂的合成与性能研究[D].大庆:大庆石油学院,2007.
LIN Shiying.The synthesis and properties research of alkyl-hydroxyl-sulfobetaines viscoelastic surfactant[D].Daqing:Daqing Petroleum Institute,2007.
[9] 赵琳,王增林,吴雄军,等.耐温耐盐降压增注活性体系的研发及性能评价[J].精细石油化工,2017,34(5):1-5.
ZHAO Lin,WANG Zenglin,WU Xiongjun,et al.Synthesis and performance evaluation of surfactant system with thermal stability and salt resistance of decreasing injection pressure[J].Speciality Petrochemicals,2017,34(5):1-5.
[10] 陈欣.驱油用新型甜菜碱表面活性剂的合成及性能研究[D].成都:西南石油大学,2016.
CHEN Xin.Synthesis and properties of new betaine surfactant for oil displacement[D].Chengdu:Southwest Petroleum University,2016.
[11] 张腾.两性表面活性剂烷基酰胺羟基磺基甜菜碱的合成及性能研究[D].北京:北京工商大学,2010.
ZHANG Teng.Synthesis and properties research of alkyl-amide-hydroxy-sulphobetaine amphoteric surfactant[D].Beijing:Beijing Technology and Business University,2010.
[12] 刘爱庆.烷基羟基磺基甜菜碱驱油体系模拟实验研究[D].大庆:大庆石油学院,2010.
LIU Aiqing.Simulation experimental study on alkyl-hydroxyl-sulfobetaine oil displacement system [D].Daqing:Daqing Petroleum Institute,2010.
[13] 邹爱华,邓雅晴,靳颖,等.十二烷基甜菜碱/脂肽复配体系与原油界面行为的研究[J].油田化学,2012,29(4):464-469.
ZOU Aihua,DENG Yaqing,JIN Ying,et al. Interfacial behavior between dodecyl betaine/lipopeptide aqueous system and crude oil[J].Oilfield Chemistry,2012,29(4):464-469.
[14] 靳颖.烷基甜菜碱复合体系溶液性质的研究[D].上海:华东理工大学,2012.
JIN Ying.Study on the solution properties of alkyl betaine compound system[D].Shanghai:East China University of Science and Technology,2012.
[15] 李士奎,刘卫东,张海琴,等.低渗透油藏自发渗吸驱油实验研究[J].石油学报,2007(2):109-112.
LI Shikui,LIU Weidong,ZHANG Haiqin,et al.Experimental study of spontaneous imbibition in low-permeability reservoir[J].Acta Petrolei Sinica,2007(2):109-112.
[16] 唐娟.低渗透油田的石油开采技术研讨[J].石化技术,2018,25(4):200.
TANG Juan.Research on petroleum exploitation technology in low permeability oilfields[J].Petrochemical Industry Technology,2018,25(4):200.
[17] 姚同玉.油层润湿性反转及其对渗流过程的影响[D].北京:中国科学院研究生院,2005.
YAO Tongyu.The wettability alteration in oil reservoir and its effect on porous flow process[D].Beijing:University of Chinese Academy of Sciences,2005.
[18] 唐可.新型润湿反转剂的合成及对渗流特性的影响[D].成都:西南石油大学,2011.
TANG Ke.Synthesis of a new reverse wetting agent and its effect on seepage characteristics[D].Chengdu:Southwest Petroleum University,2011.
[19] 陈海汇,范洪富,张翼.表面活性剂对长庆超低渗砂岩油藏化学渗吸的影响[J].科学技术与工程,2019,19(10):97-103.
CHEN Haihui,FAN Hongfu,ZHANG Yi.Effect of surfactants on chemical imbibition in Changqing ultra-low permeability sandstone reservoir[J].Science Technology and Engineering,2019,19(10):97-103.
[20] 周德胜,李鸣,师煜涵,等.致密砂岩储层渗吸稳定时间影响因素研究[J].特种油气藏,2018,25(2):125-129.
ZHOU Desheng,LI Ming,SHI Yuhan,et al.Sensitivity analysis of imbibition stability time in tight sandstone reservoir[J].Special Oil & Gas Reservoirs,2018,25(2):125-129.
[21] 顾雅頔,喻高明,李桂姗.低渗致密砂岩储层孔隙结构特征及自发渗吸实验[J].科学技术与工程,2019,19(32):139-145.
GU Yadi,YU Gaoming,LI Guishan.Experimental of pore structure and spontaneous imbibition of low permeability tight sandstone reservoirs[J].Science Technology and Engineering,2019,19(32):139-145.
[22] 王云翠,汪周华,许思强,等.高温静态渗吸实验技术在三塘湖油田注水吞吐机理研究中的应用——以NJH、M56区块基质岩心为例[J].新疆石油天然气,2019,15(2):63-68.
WANG Yuncui,WANG Zhouhua,XU Siqiang,et al.Using high temperature spontaneous imbibition experiment technology to study oil recovery mechanism of waterflood huff and puff in STH Oilfield:a case from matrix core in Block NJH and M56[J].Xinjiang Oil & Gas,2019,15(2):63-68.
[23] 肖程释.复合压裂液体系提高致密油藏渗吸采收率实验研究[D].大庆:东北石油大学,2017.
XIAO Chengshi.Experimental study on improving imbibition recovery of tight reservoir by composite fracturing fluid system[D].Daqing:Northeast Petroleum University,2017.
[24] 郭天鹰.大庆油田G区块复合压裂液提高渗吸采收率实验研究[D].大庆:东北石油大学,2018.
GUO Tianying.Experimental study on enhancing imbibition recovery efficiency with composite fracturing fluid in Block G of Daqing Oilfield[D].Daqing:Northeast Petroleum University,2018.
[25] 王小香.低渗透油藏渗吸机理及发展研究[J].精细石油化工进展,2017,18(3):26-29.
WANG Xiaoxiang.Research on low permeability reservoir imbibition mechanism and development[J].Advances in Fine Petrochemicals,2017,18(3):26-29.
[26] SCHECHTER D S,ZHOU D,ORR F M.Low IFT drainage and imbibition[J].Joural of Petroleum Science & Engineering,1994,11(4):283-300.
[27] MATTAX C C,KYTE J R.Imbibition Oil Recovery from Fractured Water Drive Reservoir [J].Society of Petroleum Engineers Journal,1962,2(2):177-184.
[28] RAPOPORT L A.Scaling laws for use in design and operation of water-oil flow models[J].Trans AIME,1995,204(1):143-105.
[29] ARONOFSKY J S,MASSE L,NATNSON S G.A model for the mechanism of oil recovery from the porous matrix due to water invasion in fractured reservoirs[J].Paper SPE,1958,213(1):17-19.