三元共聚物固井降失水剂FC-1的合成与性能评价
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摘要
选用丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS),N,N-二甲基丙烯酰胺(DMAM)为共聚单体,采用水溶液聚合法制得一种油井水泥降失水剂FC-1。采取单因素变量实验法分别对聚合条件进行考察,优选出最佳反应条件,并对FC-1进行水泥浆性能评价。实验结果表明,FC-1最佳合成条件为:单体质量分数为20%,n(AMPS)∶n(DMAM)∶n(AA)=3∶1∶1,引发剂加量为0.2%～0.3%,反应pH值为8～9,反应温度为70～80℃、反应时间5～7h;FC-1性能评价结果表明,FC-1降失水性能优良且最高耐受温度可达200℃,对水泥浆基本无缓凝作用,与外加剂——高温缓凝剂(DZH-2)配伍性好。
A fluid loss control additive,FC-1,is synthesized via aqueous copolymerization of acrylic acid(AA),2-acrylamido-2-methyl-propane sulphonic acid(AMPS)and N,N-dimethyl acrylamide(DMAM).Single variable factor method was utilized to examine the polymerization conditions for optimization and evaluate the properties of FC-1 in cementing slurry.The results show that the optimum conditions is that solid content is 20% mole ratio of AA,AMPS and DMAM is 3∶1∶1,dosage of initiator is 0.2%～0.3%,pH is 8～9,reaction temperature is 70～80℃and reaction period is 5～7 h.FC-1 possesses excellent fluid loss control property and can resist the temperature as high as 200℃.Besides,FC-1 has no retarding influence on cementing slurry and has good compatibility with the retarder of retarder for high temperature(DZH-2).
A fluid loss control additive,FC-1,is synthesized via aqueous copolymerization of acrylic acid(AA),2-acrylamido-2-methyl-propane sulphonic acid(AMPS)and N,N-dimethyl acrylamide(DMAM).Single variable factor method was utilized to examine the polymerization conditions for optimization and evaluate the properties of FC-1 in cementing slurry.The results show that the optimum conditions is that solid content is 20% mole ratio of AA,AMPS and DMAM is 3∶1∶1,dosage of initiator is 0.2%～0.3%,pH is 8～9,reaction temperature is 70～80℃and reaction period is 5～7 h.FC-1 possesses excellent fluid loss control property and can resist the temperature as high as 200℃.Besides,FC-1 has no retarding influence on cementing slurry and has good compatibility with the retarder of retarder for high temperature(DZH-2).
引文
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[2] JIANG E L,GAO Y Q,GAO H G,et al.Research Progress on Materials of Fluid Loss Additive for Oil Well[J].Hebei Chem Ind,2009,32(7):18-20(in Chinese).(蒋尔梁,高月泉,高海港,等.油井水泥降失水剂材料的研究进展[J].河北化工,2009,32(7):18-20.)
[3] SONG W K, WANG Q S,HOU Y W,et al.AMPS/DMAM/FA-A Graft Copolymer Humic Acid Fluid Loss Reducer for Well Cementing[J].Drill Fluid Completion Fluid,2017,34(1):101-105(in Chinese).(宋维凯,王清顺,侯亚伟,等.一种固井用腐植酸-AMPS/DMAM/FA接枝共聚物降失水剂[J].钻井液与完井液,2017,34(1):101-105.)
[4] GUO J T,ZOU S,YU W J,et al.Preparation and Performance of New Fluid Loss Additive HTF-210C for Oil Well Cementing[J].J Tianjin Univ(Sci Technol),2016,49(3):261-266(in Chinese).(郭锦棠,邹双,喻文娟,等.新型固井降失水剂HTF-210C的研发及性能评价[J].天津大学学报(自然科学与工程技术版),2016,49(3):261-266.)
[5] LIU X P,ZHANG M C,FANG C F.Synthesis and Performance of A High Temperature Filter Loss Reducer for Oil Well Cementing[J].Drill Fluid Completion Fluid,2015,32(6):61-64(in Chinese).(刘学鹏,张明昌,方春飞.耐高温油井水泥降失水剂的合成和性能[J].钻井液与完井液,2015,32(6):61-64.)
[6] LUO C H,ZOU J L,XU P,et al.Synthesis and Performance Evaluation of Graft AMPS Copolymer as Fluid Loss Additive[J]. Oilfield Chem,2017,34(1):11-15(in Chinese).(雒春辉,邹建龙,徐鹏,等.接枝型AMPS共聚物降失水剂的合成与性能评价[J].油田化学,2017,34(1):11-15.)
[7] ZHU B,NIE Y Z,QIU Z L.Research on AMPS/DMAM/AA Terpolymer of Cementing Fluid Loss Additive[J].Pet Drill Tech,2014,42(6):40-44(in Chinese).(朱兵,聂育志,邱在磊,等.AMPS/DMAM/AA共聚物固井降滤失剂的研究[J].石油钻探技术,2014,42(6):40-44.)
[8] TAN C Q,XU J,SUN W J,et al.JSS300:A High Temperature and Salt Resistant Fluid Loss Agent for Deep Well Cement Slurry[J].Pet Drill Tech,2009,37(4):50-53(in Chinese).(谭春勤,徐江,孙文俊,等.深井油井水泥耐盐抗温降失水剂JSS300的试验研究[J].石油钻探技术,2009,37(4):50-53.)
[9] LI X L,GUO A P,SUN J.Research on Terpolymer of Oil Well Cement Filtrate Reducer[J].Drill Fluid Completion Fluid,2013,30(1):56-59(in Chinese).(李晓岚,国安平,孙举.三元共聚物油井水泥降失水剂的室内研究[J].钻井液与完井液,2013,30(1):56-59.)
[10] GUO C,GUO J T,CHEN D,et al.Synthesis and Performances of Fluid Loss Additive Available in Sea Water-based Cement Slurry System[J].Petrochem Technol,2017,46(5):608-613(in Chinese).(郭春,郭锦棠,陈頔,等.海水水泥浆用分散型降失水剂的制备及性能[J].石油化工,2017,46(5):608-613.)
[11] MA P.Optimization and Performance Evaluation of Oil-base Drilling Fluid[J].Chem World,2016,57(12):750-755(in Chinese).(马鹏.油基钻井液的配方优选及性能评价[J].化学世界,2016,57(12):750-755.)