新型耐盐聚合物压裂液的合成及其性能
|
摘要
压裂在非常觃油气开发过程中是常见的,压裂液的选择在整个施工过程中是重要的一环,压裂液的发展已经有几十年,但是目前的压裂液的耐温耐盐性能不够好,不够稳定。用合成四元耐盐聚合物(AADMC)作为水力压裂的稠化剂,引入2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和功能单体十六烷基二甲基烯丙基氯化铵(DMAAC)来增强聚合物的耐盐和耐温性,结果表明稠化剂浓度相同时,合成的AADMC比市场的PAM-10溶液表现出更好的表观黏度,在高矿化度下表现出比聚丙烯酰胺类PAM-10更好的耐盐型,在3.5%(wt)的含盐量条件下,依然保持较高的黏度。在160℃剪切120 min,黏度始终维持在50 mPa·s以上,满足160℃高温下使用。
Fracturing is common process in the development of unconventional oil and gas. The choice of fracturing fluid is an important part in the whole construction process. The fracturing fluid has been developed for decades,however, the current temperature and salt resistance of fracturing fluid is not good enough, and it is not stable enough.In this paper, quaternary salt tolerant polymer(AADMC) was used as thickening agent for hydraulic fracturing.2-Acrylamide-2-methylpropionic sulfonic acid(AMPS) and functional monomer hexadecyl dimethyl allyl ammonium chloride(DMAAC) were introduced to enhance salt and temperature resistance of polymers. The results showed that when the thickener concentration was the same, the synthesized AADMC exhibited better apparent viscosity than the PAM-10 solution in the market. It showed better salt tolerance than polyacrylamide PAM-10 under high salinity. Under the condition of salt content of 3.5%(wt), the viscosity remained high level. After shearing at 160 ℃ for 120 min, the viscosity always maintained at more than 50 mPa·s, so it can be used at 160 ℃.
Fracturing is common process in the development of unconventional oil and gas. The choice of fracturing fluid is an important part in the whole construction process. The fracturing fluid has been developed for decades,however, the current temperature and salt resistance of fracturing fluid is not good enough, and it is not stable enough.In this paper, quaternary salt tolerant polymer(AADMC) was used as thickening agent for hydraulic fracturing.2-Acrylamide-2-methylpropionic sulfonic acid(AMPS) and functional monomer hexadecyl dimethyl allyl ammonium chloride(DMAAC) were introduced to enhance salt and temperature resistance of polymers. The results showed that when the thickener concentration was the same, the synthesized AADMC exhibited better apparent viscosity than the PAM-10 solution in the market. It showed better salt tolerance than polyacrylamide PAM-10 under high salinity. Under the condition of salt content of 3.5%(wt), the viscosity remained high level. After shearing at 160 ℃ for 120 min, the viscosity always maintained at more than 50 mPa·s, so it can be used at 160 ℃.
引文
[1]管保山,汪义发,何治武,等.CJ2-3型可回收低分子量瓜尔胶压裂液的开发[J].油田化学,2006,23(1):27-31.
[2]ManjitS.Chowdhary,Ian W.Cottrell.Method for preparation of amphoteric guar gum derivatives:EP,0943672[P].1999-09-22.
[3]俞绍诚.水力压裂技术手册[M].北京:石油工业出版社,2010.
[4]Sun H,Qu Q.High-Effciency Crosslinkers for Low-Polymer Fracturing Fluids[J].Spe Journal,2011,19(4).
[5]雷欣,周明.一种耐高温压裂液体系的性能评价[J].山西化工,2011,31(4):16-17.
[6]张菅,尹海亮,刘新亮,等.耐温耐盐P(AM-AMPS-St-AA)共聚物压裂液稠化剂的合成与性能[J].油田化学,2016,33(2):215-219.
[7]徐国栋,邓新华,孙元.丙烯酸与丙烯酰胺共聚制备高吸水纤维的研究[J].天津工业大学学报,2004,23(4):11-13.
[8]代磊阳,郭新维,王健,等.AM/AMPS/DM-16疏水缔合聚合物的合成及性能[J].精细石油化工,2015,32(1):10-14.
[9]杜涛,姚奕明,蒋廷学,等.清洁聚合物压裂液研究与现场应用[J].化学世界,2016,57(6):334-337.
[2]ManjitS.Chowdhary,Ian W.Cottrell.Method for preparation of amphoteric guar gum derivatives:EP,0943672[P].1999-09-22.
[3]俞绍诚.水力压裂技术手册[M].北京:石油工业出版社,2010.
[4]Sun H,Qu Q.High-Effciency Crosslinkers for Low-Polymer Fracturing Fluids[J].Spe Journal,2011,19(4).
[5]雷欣,周明.一种耐高温压裂液体系的性能评价[J].山西化工,2011,31(4):16-17.
[6]张菅,尹海亮,刘新亮,等.耐温耐盐P(AM-AMPS-St-AA)共聚物压裂液稠化剂的合成与性能[J].油田化学,2016,33(2):215-219.
[7]徐国栋,邓新华,孙元.丙烯酸与丙烯酰胺共聚制备高吸水纤维的研究[J].天津工业大学学报,2004,23(4):11-13.
[8]代磊阳,郭新维,王健,等.AM/AMPS/DM-16疏水缔合聚合物的合成及性能[J].精细石油化工,2015,32(1):10-14.
[9]杜涛,姚奕明,蒋廷学,等.清洁聚合物压裂液研究与现场应用[J].化学世界,2016,57(6):334-337.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |