提输卤管道用改性减阻剂的减阻性能及机理
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摘要
为了提高减阻剂的耐温、耐盐性,从而使减阻剂更适应深层卤水提输环境,通过引入衣康酸改进减阻剂性能,采用Materials Studio软件模拟与实验相结合的方式,探究以2-丙烯酰胺基-2-甲基丙磺酸、丙烯酰胺、衣康酸3种单体合成水溶性减阻剂的可行性;模拟提输卤管道环境,以铁质管道、Na Cl溶液为主,探究减阻剂在铁管表面的吸附状态,分析其减阻机理;以卤水温度、流量、矿化度、减阻剂用量为变量评价减阻性能,通过室内减阻剂测试环道评价减阻效果。结果表明:引入衣康酸可成功合成减阻剂,减阻剂通过自由移动吸附在铁表面,使卤水中其他粒子在铁表面吸附力下降,流动阻力减小,减阻效果明显;该减阻剂受温度、矿化度影响较小,耐温、耐盐性改善。
To improve the temperature tolerance and salt tolerance of the reducing agent to make it more suitable for deep brine transport environment,the itaconic acid was introduced to improve the performance of drag reduction agent. By combination of Materials Studio software simulation and experiment,the synthesis feasibility of water-soluble drag reduction agent with 2-acrylamide-2-methyl propane sulfonic acid,acrylamide,and itaconic acid was explored. The environment of the brine pipeline was simulated,and the iron pipe and Na Cl solution were mainly used to explore the adsorption state of drag reducer on the surface of iron pipe. The mechanism of its drag reduction was analyzed. The drag reduction performance was evaluated by the salinity of brine,brine temperature,brine flow,and drag reducer dosage. The results show that the antifriction agent can be successfully synthesized by the introduction of itaconic acid. The drag reduction agent moves freely in brine and adsorbs on the iron surface,thus the adsorption capacity of other particles on the iron surface decreases,and the flow resistance reduces. The drag reduction effect is obvious. The reducing agent is weakly influenced by temperature and salinity,and the temperature tolerance and salt tolerance are improved.
To improve the temperature tolerance and salt tolerance of the reducing agent to make it more suitable for deep brine transport environment,the itaconic acid was introduced to improve the performance of drag reduction agent. By combination of Materials Studio software simulation and experiment,the synthesis feasibility of water-soluble drag reduction agent with 2-acrylamide-2-methyl propane sulfonic acid,acrylamide,and itaconic acid was explored. The environment of the brine pipeline was simulated,and the iron pipe and Na Cl solution were mainly used to explore the adsorption state of drag reducer on the surface of iron pipe. The mechanism of its drag reduction was analyzed. The drag reduction performance was evaluated by the salinity of brine,brine temperature,brine flow,and drag reducer dosage. The results show that the antifriction agent can be successfully synthesized by the introduction of itaconic acid. The drag reduction agent moves freely in brine and adsorbs on the iron surface,thus the adsorption capacity of other particles on the iron surface decreases,and the flow resistance reduces. The drag reduction effect is obvious. The reducing agent is weakly influenced by temperature and salinity,and the temperature tolerance and salt tolerance are improved.
引文
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[24]韩祥生,张凤娟,楚丹丹,等.磺甲基化聚丙烯酰胺合成及在卤水管道的应用[J].盐业与化工,2015,44(8):30-33.
[25]韩祥生.新型改性卤水减阻剂的合成及其性能测试[D].济南:山东大学,2016.
[2]马振民,雒芸芸,侯玉松.深层卤水资源的可持续开发利用[J].济南大学学报(自然科学版),2013,27(4):331-335.
[3]韩积斌,许建新,安朝,等.盐湖地下卤水的开采技术及其展望[J].盐湖研究,2015,23(1):67-72.
[4]连露,韩祥生,楚丹丹,等.聚丙烯酰胺在清水及卤水管道中的减阻性能[J].中国井矿盐,2015,46(3):17-20.
[5]苏为科,李彬睿,刘红,等.减阻剂溶液的传递机理[J].浙江工学院学报,1994(2):93-98.
[6]石静,吕凯,苑世领.支链烷基苯磺酸盐在油水界面的分子动力学模拟[J].山东大学学报(工学版),2012,42(2):77-82.
[7]邓明毅.聚合物稀溶液紊流减阻作用机理综述[J].钻井液与完井液,1997(1):36-39.
[8]邹祖光,张东生,谭志容.山东省地下卤水资源及开发利用现状分析[J].地质调查与研究,2008,31(3):214-221.
[9]任华.分子模拟在界面相互作用计算中的应用[D].西安:西北工业大学,2007:1-5.
[10]黄宇.分子模拟研究气体分子在有机硅聚合物中的扩散行为[D].厦门:厦门大学,2006:21-33.
[11]刘清芝.反渗透膜及水溶液内扩散过程的分子模拟研究[D].青岛:中国海洋大学,2007:11-17
[12]荣丽萍.分子模拟研究小分子气体在常用包装聚合膜中的扩散行为[D].济南:山东大学,2011.
[13]朱宇,陆小华,丁皓,等.分子模拟在化工应用中的若干问题及思考[J].化工学报,2004,55(8):1213-1223.
[14]赵旭.离子液体吸收分离乙炔乙烯的分子模拟与实验研究[D].杭州:浙江大学,2014.
[15]李冰.油品减阻剂分散系统关键技术的开发与油品减阻剂的性能拓展[D].济南:山东大学,2011.
[16] KONATHAM D,YU J,HO T A,et al. Simulation insights for graphene-based water desalination membranes[J]. Langmuir,2013,29(38):11884-11897.
[17]李春艳,刘华,刘波涛.分子模拟的方法及其应用[J].当代化工,2011,40(5):494-497.
[18]乔智威,任树化,周健. H2S/N2混合物在碳纳米管中吸附分离的分子模拟[J].高等学校化学学报,2012,33(4):800-805.
[19]张敏,张璐,张宝峰,等. SBR/TPU的分子动力学模拟及耐热性能[J].塑料,2017,46(1):33-38.
[20]陶长贵,冯海军,周健,等.氧气在聚丙烯内吸附和扩散的分子模拟[J].物理化学学报,2009,25(7):1373-1378.
[21]袁帅,龙军,周涵,等.芳烃、环烷烃分子在MFI和FAU分子筛中扩散行为的分子模拟[J].石油学报(石油加工),2011,27(4):508-515.
[22]王丽娟,石静,赵方剑.气液界面上磺基甜菜碱两性表面活性剂分子动力学模拟[J].山东大学学报(工学版),2014,44(6):83-89.
[23]崔青,张长桥,修建新,等.稠油沥青质胶质降粘机理的分子动力学模拟[J].山东大学学报(工学版),2017,47(2):123-130.
[24]韩祥生,张凤娟,楚丹丹,等.磺甲基化聚丙烯酰胺合成及在卤水管道的应用[J].盐业与化工,2015,44(8):30-33.
[25]韩祥生.新型改性卤水减阻剂的合成及其性能测试[D].济南:山东大学,2016.