文章摘要
采用不同表面活性剂制备的绒囊流体性能特征
Properties of Chorionic Vesicle Fluids Prepared by Different Surfactant
投稿时间:2020-05-25  修订日期:2020-05-25
DOI:
中文关键词: 绒囊流体  表面活性剂  流变性  耐温性  耐酸性  抗盐性
英文关键词: chorionic vesicle fluid  Surfactant  rheology  temperature resistance  acid resistance  salt resistance
基金项目:中国石化重点科技项目-顺北一区采输关键技术研究与应用(P18022);“十三五”国家重大专项-缝洞型油藏堵调及靶向酸压工艺技术(2016ZX05014-005)
作者单位E-mail
李永寿 中国石油化工股份有限公司西北油田分公司 1242193412@qq.com 
张明华 四川大学高分子研究所  
赵志新 四川大学高分子研究所  
陶丹阳 四川大学高分子研究所  
张熙 四川大学高分子研究所 zhangxi6352@163.com 
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中文摘要:
      为揭示不同结构表面活性剂制备的绒囊流体性能特征,分别采用十二烷基硫酸钠(SDS)、十二烷基苯磺酸钠(SDBS)、烷基酚聚氧乙烯醚(OP-10)、十六烷基三甲基溴化铵(CTAB)和改性多糖制备了系列绒囊流体,研究了所得绒囊流体的流变性能,考察了温度、NaCl和盐酸对绒囊流体性能的影响。结果表明,采用不同表面活性剂制备的绒囊流体性能有较大差异,采用SDS制备的绒囊流体表观黏度最大,CTAB的次之,再次的是SDBS,OP-10制备的绒囊流体表观黏度最低。绒囊流体的黏度随温度呈现独特的变化关系:在温度较低时,黏度随温度的升高而降低;当温度达到约80℃时,黏度随温度降低的趋势变缓;当温度升至约100℃时,黏度不再随温度升高发生明显变化。当温度高于120℃时,SDS、OP-10和CTAB配制的绒囊流体的黏度值相当,SDBS的黏度最小。绒囊流体在140℃高温下的黏度稳定性按所用表面活性剂排序如下:OP-10>CTAB>SDS>SDBS。以SDS、SDBS、OP-10和CTAB制备的绒囊流体加入2%NaCl后表观黏度变化率均小于10%,具有良好的耐盐性能。绒囊流体的耐酸性按所用表面活性剂排序如下:CTAB>OP-10>SDS、SDBS,制备耐酸绒囊流体应选用阳离子型表面活性剂,采用阴离子表面活性剂SDS、SDBS不能制备出耐酸性能良好的绒囊流体。
英文摘要:
      In order to reveal the properties of chorionic vesicle fluids prepared by different surfactant. A series of chorionic vesicle fluids were prepared by using sodium dodecyl sulfate (SDS), sodium dodecylbenzene sulfonate (SDBS), alkylphenol polyoxyethylene ether (OP-10), cetyltrimethylammonium bromide (CTAB) and modified polysaccharides. The effects of temperature, NaCl and hydrochloric acid on the rheological properties of chorionic vesicle fluids were investigated. The results showed that the properties of chorionic vesicle fluids prepared by different surfactant were significantly different. The apparent viscosity of chorionic vesicle fluid prepared by SDS was the highest, followed by CTAB, SDBS and OP-10. The viscosity of chorionic vesicle fluids showed unique change relationships with temperature: when the temperature was low, the viscosity decreased as the temperature increasing; when the temperature reached about 80 ℃, the increase of viscosity slowed down with as the temperature decreasing; when the temperature rised to 100 ℃, the viscosity no longer changed with the increase of temperature; when the temperature was higher than 120 ℃, the viscosity of chorionic vesicle fluids prepared by SDS, OP-10 and CTAB was comparable, while the SDBS''s was the lowest. The order of heat resistance of chorionic vesicle fluids in 140 ℃ was OP-10>CTAB>SDS>SDBS. The change rates of apparent viscosity were less than 10% after adding 2% NaCl into the chorionic vesicle fluids prepared by SDS, SDBS, OP-10 and CTAB, which had good salt resistance. The order of acid resistance of different chorionic vesicle fluids was CTAB>OP-10>SDS、SDBS. In general, cationic surfactant should be used to prepare acid resistant fluids and anionic surfactant such as SDS or SDBS could not be used.
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