具有高温流变学稳定的VES压裂液性能的分析研究  

Performance Analysis of VES Fracturing Fluid With High Temperature Rheological Stability

作　　者：林龙生[1] 王文文[1] 宋茂林[1] 谢岚 蔡瑞豪[2] 程羽 LIN Long-sheng;WANG Wen-wen;SONG Mao-lin;XIE Lan;CAI Rui-hao;CHENG Yu(China Oilfield Services Limited,Langfang 065201,China;China United Coalbed Methane Co.,Ltd.,Beijing 100015,China)

机构地区：[1]中海油田服务股份有限公司,廊坊065201 [2]中联煤层气有限责任公司,北京100015

出　　处：《当代化工》2021年第6期1333-1336,1341,共5页Contemporary Chemical Industry

基　　金：国家科技重大专项,大型油气田及煤层气开发(项目编号:2016ZX05015)。

摘　　要：针对目前黏弹性表面活性剂压裂液耐温性不足、成本高的缺点,研制了双子阳离子表面活性剂FL-25,并以其作为稠化剂配制成压裂液。FL-25无须添加任何有机或无机盐,便可在水中形成黏弹性流体。对新型双子阳离子表面活性剂的流变性质和热稳定性进行实验研究。结果表明:F-25溶液具有较好的稳定性、黏弹性、触变性和抗剪切性。在温度为110℃、剪切速率为170 s^(-1)时,剪切90 min黏度保持在69 mPa·s,表现出良好的耐高温性能。Aiming at the current shortcomings of insufficient temperature resistance and high cost of viscoelastic surfactant fracturing fluid, Gemini cationic surfactant FL-25 was developed and used as a thickening agent to prepare fracturing fluid. FL-25 can form a wormlike viscoelastic fluid in aqueous solution without adding any organic or inorganic salts. The rheological properties and thermal stability of the novel gemini micelle solutions were further investigated. The results showed that the gemini micelle solution had good stability, viscoelasticity, thixotropy and shear resistance. The apparent viscosity of the viscoelastic gemini micelle solution at a shear rate of 170 s^(-1) remained approximately 69 mPa·s at 110 ℃ for 90 min, showing good high-temperature-resistance property.

关 键 词：清洁压裂液 双子阳离子表面活性剂 流变学 热稳定性 黏弹性表面活性剂 

分 类 号：TE357[石油与天然气工程—油气田开发工程]