Preparation and properties of a novel temperature- and salt-resistant polymer fluid loss reducer
LIU Huan1, ZENG Xue-ling1, LI Wen-yan2, WANG Fu-guo2, ZHANG Hai-ning2
1. Special Cement Research Institute, Jiahua Special Cement Co., Ltd., Leshan 614000, China; 2. Institute of Exploration and Development, PetroChina Qinghai Oilfield Company, Haixi 816499, China
Abstract: Current fluid loss reducer has the problems such as insufficient temperature resistance,insufficient salt resistance and poor comprehensive performance.A novel water-soluble polymer-based nano-SiO2 composite,P(AAMS)/nano-SiO2,is prepared through free radical aqueous solution copolymerization method with modified nano-SiO2,AMPS,AM,MA and SSS as raw materials,aiming to improve the water loss control ability of cementing slurry under high temperature and high salt environment,therefore improving the cementing quality and ensuring the efficient and safe exploitation of oil and gas resources.Firstly,the structure of P(AAMS)/nano-SiO2 is characterized by means of IR and NMR.Secondly,the water loss control,temperature resistance,salt resistance and other basic construction performance of P(AAMS)/nano-SiO2 cement slurry system are evaluated.The results show that P(AAMS)/nano-SiO2 can significantly improve the water loss control ability of cement slurry in high temperature and high salt environment.The water loss of cement slurry is 44 mL at 120℃ when the content of P(AAMS)/nano-SiO2 is 0.9%.The water loss of cement slurry that contains 10%-30% NaCl is still less than 50 mL when the content of nano-SiO2 is 1.2 wt%,which can meet the requirements of cementing operation.It is indicated that 1.2% P(AAMS)/nano-SiO2 cement slurry has no adverse effect on mechanical properties,thickening properties and other basic engineering properties of cement paste.
刘欢, 曾雪玲, 李文研, 王福国, 张海宁. 新型抗温耐盐聚合物降失水剂的制备及性能研究[J]. 现代化工, 2023, 43(1): 226-233.
LIU Huan, ZENG Xue-ling, LI Wen-yan, WANG Fu-guo, ZHANG Hai-ning. Preparation and properties of a novel temperature- and salt-resistant polymer fluid loss reducer. Modern Chemical Industry, 2023, 43(1): 226-233.
[1] 宋春雷,安会勇,张文德,等.P(AM/AMPS/NVP)降失水剂合成与耐温性能研究[J].应用化工,2009,38(9):1254-1256. [2] 邹建龙,屈建省,吕光明,等.新型固井降失水剂BXF-200L的研制与应用[J].钻井液与完井液,2005,(2):20-23. [3] 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):60-64. [4] 郭锦棠,卢海川,靳建州,等.新型耐温抗盐降失水剂的合成与测试[J].天津大学学报,2012,45(11):1001-1006. [5] Kelessidis V C,Tsamantaki C,Michalakis A,et al.Greek lignites as additives for controlling filtration properties of water-bentonite suspensions at high temperatures[J].The Science and Technology of Fuel and Energy,2007,86(11):1112-1121. [6] 付家文,孙勤亮,郭胜来,等.抗高温油井水泥降失水剂的合成和评价[J].油田化学,2012,29(2):151-154. [7] Holland B J,Hay J N.The kinetics and mechanisms of the thermal degradation of poly (methyl methacrylate) studied by thermal analysis-Fourier transform infrared spectroscopy[J].Polymer,2011,42(11):4825-4835. [8] Xiao Qiang,Rao Pinhua,Xiao Wenfang,et al.Preparation of a novel for polymer as fluid loss additive for high temperature oil well cementing[J].Russian J Appl Chem,2014,87(9):1377-1381. [9] 严思明,杨珅,王富辉,等.新型耐高温油井降失水剂的合成与性能评价[J].石油学报,2016,37(5):672-679. [10] Guo J T,Lu H C,Liu S Q,et al.The novel fluid loss additive HTF-200C for oil filed cementing[J].Petrol Explor Develop,2012,39(3):385-390. [11] 杨智光,崔海清,肖志兴.深井高温条件下油井水泥强度变化规律研究[J].石油学报,2008,29(3):435-437. [12] Chu Q.Application of a new family of organosilicon quadripolymer as a fluid loss additive for drilling fluid at high temperature[J].J Appl Polym Sci,2013,12(8):28-40. [13] Knapen E,Van Genmert D.Cement hydration and micro structure formation in the presence of water-soluble polymers[J].Cem Concr Res,2009,39(1):6-13. [14] 齐奉忠,杨成颉,刘子帅.提高复杂油气井固井质量技术研究—保证水泥环长期密封性的技术措施[J].石油科技论坛,2013,32(1):19-22. [15] 刘秀成,李韶利,张志远.G306降失水剂在中原油田固井中的应用[J].钻井液与完井液,2005,22(S1):72-74. [16] Guo S L,Bu Y H.Synthesis and application of 2-acrylamido-2-methyl propane sulfonic acid/acrylamide/N,N-dimethyl acrylamide/maleic anhydride as a fluid loss control additive in oil well cementing[J].J Appl Polym Sci,2013,12(7):3302-3309. [17] Tang Xin,Yuan Bin,Yang Yuanguang,et al.Preparation and performance of AMPS/AA/DMAA/SA copolymer as a filtrate reducer for oil well cementing[J].J Appl Polym Sci,2016,133(33):1-9. [18] Xu Jiangen,Qiu Zhengsong,Huang Weian,et al.Preparation and performance properties of polymer latex SDNL in water-based drilling fluids for drilling troublesome shale formations[J].Nat Gas Sci Eng,2017,37:462-470. [19] 陈大钧,焦利宾,张瑞,等.用于油井水泥的JAS型无皂胶乳的合成及性能[J].精细化工,2016,32(2):190-194. [20] Olivira A M,Guimaraes K L,Cerize N N P.The role of functional monomers on producing nanostructured lattices obtained by surfactant-free emulsion polymerization-A novel approach[J].Eur Polym J,2016,71:268-278.