爆聚法合成抗高温抗盐水基降滤失剂及性能评价
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摘要
为了克服水相聚合法产物含量低、烘干过程分子量易增大和高能耗等问题,通过爆聚法利用单体苯乙烯磺酸钠和2-丙烯酰胺-2-甲基丙磺酸分别与丙烯酰胺和二甲基二烯丙基氯化铵合成制备了抗高温抗盐降滤失剂WS-1和WS-2。借助红外光谱(FT-IR)和热重分析(TGA),表征了降滤失剂的分子结构和热稳定性,并且进行了降滤失剂在高温高盐水基钻井液中的流变性和高温高压滤失性能的影响实验。结果表明,具有刚性苯乙烯磺酸钠分子链段的降滤失剂WS-2具有良好的高温稳定性,热分解温度为310℃,降滤失剂WS-2在220℃饱和盐水基钻井液中高温高压滤失量为7.6 mL;具有大分子支链2-丙烯酰胺-2-甲基丙磺酸链段的降滤失剂WS-1热分解温度为270℃,200℃饱和盐水基钻井液中高温高压滤失量为1.6 mL;利用爆聚法合成的降滤失剂WS-1和WS-2均具有良好的抗温抗盐性能。
Sodium styrene sulfonate and AMPS were used to react with acrylamide and dimethyl diallyl ammonium chloride respectively in explosive polymerization to produce two high temperature salt resistant filter loss reducers WS-1 and WS-2. Explosive polymerization was used in the synthesis reaction because in aqueous phase polymerization, the yield of the product is low, the molecular weight of the product is easy to increase during drying, and the energy required for the reaction is high. The molecular structure and thermal;stability of WS-1 and WS-2 were characterized using FT-IR spectroscopy and TGA. The effects of WS-1 and WS-2 on the rheology and HTHP filtration rate of high salinity water base drilling fluids at elevated temperatures were evaluated in laboratory experiment.The experimental results showed that WS-2, having rigid sodium styrene sulfonate molecular chains in its molecules, had good high temperature stability, the thermal decomposition temperature of WS-2 was tested to be 310 ℃. HTHP filter loss at 220 ℃ of a saturated saltwater base drilling fluid treated with WS-2 was 7.6 mL. WS-1, having large molecular chain of AMPS in its molecules,had thermal decomposition temperature of 270 ℃. HTHP filter loss at 200 ℃ of a saturated saltwater base drilling fluid treated with WS-1 was 1.6 mL. These experimental results showed that WS-1 and WS-2 both have good high temperature and salt resistant performance.
Sodium styrene sulfonate and AMPS were used to react with acrylamide and dimethyl diallyl ammonium chloride respectively in explosive polymerization to produce two high temperature salt resistant filter loss reducers WS-1 and WS-2. Explosive polymerization was used in the synthesis reaction because in aqueous phase polymerization, the yield of the product is low, the molecular weight of the product is easy to increase during drying, and the energy required for the reaction is high. The molecular structure and thermal;stability of WS-1 and WS-2 were characterized using FT-IR spectroscopy and TGA. The effects of WS-1 and WS-2 on the rheology and HTHP filtration rate of high salinity water base drilling fluids at elevated temperatures were evaluated in laboratory experiment.The experimental results showed that WS-2, having rigid sodium styrene sulfonate molecular chains in its molecules, had good high temperature stability, the thermal decomposition temperature of WS-2 was tested to be 310 ℃. HTHP filter loss at 220 ℃ of a saturated saltwater base drilling fluid treated with WS-2 was 7.6 mL. WS-1, having large molecular chain of AMPS in its molecules,had thermal decomposition temperature of 270 ℃. HTHP filter loss at 200 ℃ of a saturated saltwater base drilling fluid treated with WS-1 was 1.6 mL. These experimental results showed that WS-1 and WS-2 both have good high temperature and salt resistant performance.
引文
[1]马喜平,朱忠祥,侯代勇,等.抗高温钻井液降滤失剂的评价及其作用机理[J].石油化工,2016,45(4):453-460.MA Xiping,ZHU Zhongxiang,HOU Daiyong,et al.Evaluation and action mechanism of heat-resistant filtrate reducer-PAASD used in drilling fluids[J].Petrochemical technology,2016,45(4):453-460.
[2]黄维安,邱正松,乔军,等.抗温抗盐聚合物降滤失剂的研制及其作用机制[J].西南石油大学学报(自然科学版),2013,35(1):129-134.HUANG Wei'an,QIU Zhengsong,QIAO Jun,et al.Development of anti high temperature and salt polymer fluid loss agent and study on its operation mechanisms[J].Journal of Southwest Petroleum University(Science&Technology Edition),2013,35(1):129-134.
[3]蒋官澄,李威,姚如钢.耐温抗高钙盐降滤失剂的合成及其性能评价[J].石油化工,2014,43(5):545-550.JIANG Guancheng,LI Wei,YAO Rugang.Synthesis and properties of heat-resistant filtrate reducer with high resistance to salt and calcium[J].Petrochemical technology,2014,43(5):545-550.
[4]王旭,王中华,周乐群,等.240℃超高温饱和盐水钻井液室内研究[J].钻井液与完井液,2011,28(4):19-21.WANG Xu,WANG Zhonghua,ZHOU Lequn,et al.Laboratory study on the 240℃ultra-high temperature saturated brine drilling fluid[J].Drilling Fluid&Completion Fluid,2011,28(4):19-21.
[5]李真伟,梁大川,彭波,等.抗高温抗盐降滤失剂HRF的研制及应用[J].油田化学,2016,33(2):204-209.LI Zhenwei,LIANG Dachuan,PENG Bo,et al.Synthesis and application filtrate loss reducer hrf with temperature resistance and salt tolerance[J].Oilfield Chemistry,2016,33(2):204-209.
[6]郑锟,蒲晓林,傅伟,等.抗高温抗盐降滤失剂AAD的合成及评价[J].石化技术与应用,2008,26(4):306-311.ZHENG Kun,PU Xiaolin,FU Wei,et al.Synthesis and evaluation of filtrate loss additive AAD with high temperature resistance and salt tolerance[J].Petrochemical Technology&Application,2008,26(4):306-311.
[7]徐运波,蓝强,张斌,等.梳型聚合物降滤失剂的合成及其在深井盐水钻井液中的应用[J].钻井液与完井液,2017,34(1):33-38.XU Yunbo,LAN Qiang,ZHANG Bin,et al.Synthesis and application of a comb polymer filter loss reducer in deep well saltwater drilling fluid[J].Drilling Fluid&Completion Fluid,2017,34(1):33-38.
[8]吴鑫磊,闫丽丽,王立辉,等.环保型钻井液用降滤失剂研究进展[J].钻井液与完井液,2018,35(3):8-16.WU Xinlei,YAN Lili,WANG Lihui,et al.Progress in the study of environmentally friendly drilling fluid filtration reducer[J].Drilling Fluid&Completion Fluid,2018,35(3):8-16.
[2]黄维安,邱正松,乔军,等.抗温抗盐聚合物降滤失剂的研制及其作用机制[J].西南石油大学学报(自然科学版),2013,35(1):129-134.HUANG Wei'an,QIU Zhengsong,QIAO Jun,et al.Development of anti high temperature and salt polymer fluid loss agent and study on its operation mechanisms[J].Journal of Southwest Petroleum University(Science&Technology Edition),2013,35(1):129-134.
[3]蒋官澄,李威,姚如钢.耐温抗高钙盐降滤失剂的合成及其性能评价[J].石油化工,2014,43(5):545-550.JIANG Guancheng,LI Wei,YAO Rugang.Synthesis and properties of heat-resistant filtrate reducer with high resistance to salt and calcium[J].Petrochemical technology,2014,43(5):545-550.
[4]王旭,王中华,周乐群,等.240℃超高温饱和盐水钻井液室内研究[J].钻井液与完井液,2011,28(4):19-21.WANG Xu,WANG Zhonghua,ZHOU Lequn,et al.Laboratory study on the 240℃ultra-high temperature saturated brine drilling fluid[J].Drilling Fluid&Completion Fluid,2011,28(4):19-21.
[5]李真伟,梁大川,彭波,等.抗高温抗盐降滤失剂HRF的研制及应用[J].油田化学,2016,33(2):204-209.LI Zhenwei,LIANG Dachuan,PENG Bo,et al.Synthesis and application filtrate loss reducer hrf with temperature resistance and salt tolerance[J].Oilfield Chemistry,2016,33(2):204-209.
[6]郑锟,蒲晓林,傅伟,等.抗高温抗盐降滤失剂AAD的合成及评价[J].石化技术与应用,2008,26(4):306-311.ZHENG Kun,PU Xiaolin,FU Wei,et al.Synthesis and evaluation of filtrate loss additive AAD with high temperature resistance and salt tolerance[J].Petrochemical Technology&Application,2008,26(4):306-311.
[7]徐运波,蓝强,张斌,等.梳型聚合物降滤失剂的合成及其在深井盐水钻井液中的应用[J].钻井液与完井液,2017,34(1):33-38.XU Yunbo,LAN Qiang,ZHANG Bin,et al.Synthesis and application of a comb polymer filter loss reducer in deep well saltwater drilling fluid[J].Drilling Fluid&Completion Fluid,2017,34(1):33-38.
[8]吴鑫磊,闫丽丽,王立辉,等.环保型钻井液用降滤失剂研究进展[J].钻井液与完井液,2018,35(3):8-16.WU Xinlei,YAN Lili,WANG Lihui,et al.Progress in the study of environmentally friendly drilling fluid filtration reducer[J].Drilling Fluid&Completion Fluid,2018,35(3):8-16.