胍胶压裂液有机硼交联剂JSA-1的合成与性能评价  

Synthesis and performance evaluation of organic boron crosslinking agent JSA-1 for guar gum fracturing fluid

作　　者：徐栋 朱卫平 刘川庆[1,2] 王玉斌 王争凡[3] 孟令鹏 吴明杨 XU Dong;ZHU Weiping;LIU Chuanqing;WANG Yubin;WANG Zhengfan;MENG Lingpeng;WU Mingyang(Institute of Engineering Technology,PetroChina Coalbed Methane Company Limited,Xi'an 710082,Shaanxi,China;China United Coalbed Methane National Engineering Research Center Company Limited,Beijing 100089,China;National Quality Inspection and Testing Center for Oil Country Tabular Goods,CNPC Tubular Goods Research Institute,Xi'an 710077,Shaanxi,China)

机构地区：[1]中石油煤层气有限责任公司工程技术研究院,陕西西安710082 [2]中联煤层气国家工程研究中心有限责任公司,北京100089 [3]中国石油集团工程材料研究院有限公司国家石油管材质量检验检测中心,陕西西安710077

出　　处：《精细化工》2024年第5期1127-1134,共8页Fine Chemicals

基　　金：中国石油天然气股份有限公司前瞻性基础性技术攻关项目(2021DJ2304、2021DJ2004);中国石油天然气集团公司攻关性应用性科技专项(2023ZZ18)。

摘　　要：以硼酸、正丁醇、乙二醇、二乙烯三胺为反应原料,采用一锅法合成了有机硼交联剂(JSA-1)。考察了胍胶质量分数(即含量,以胍胶占胍胶基液总质量计)、JSA-1用量(即添加量,以胍胶基液质量为基准,下同)、pH对JSA-1交联性能的影响。结果表明,胍胶质量分数越大(0.09%~0.4%),胍胶压裂液的交联状态越好、交联时间越短、表观黏度越高、耐温能力越强;JSA-1用量越大(0.04%~0.4%),胍胶压裂液的交联状态越好、交联时间越短、耐温能力越强;pH(pH=4~14)越高,胍胶压裂液的交联时间越长、耐温能力越强。JSA-1对pH和胍胶质量分数的适用范围较广,在低温配方中,可以使低质量分数的胍胶实现有效交联,胍胶质量分数为0.13%的胍胶基液与JSA-1交联后,在常温、100 s^(–1)剪切下表观黏度可达到50 mPa·s;在高温配方中,胍胶质量分数为0.4%的胍胶基液与JSA-1交联后制备的压裂液具备较好的耐温耐剪切能力,在120℃、100 s^(–1)剪切条件下表观黏度可以稳定保持在300 mPa·s左右。Organic boron crosslinking agent(JSA-1)was synthesized from one-pot reaction of boric acid,n-butanol,ethylene glycol,and diethylenetriamine.The effects of guar gum mass fraction(based on the total mass of guar gum base solution),JSA-1 dosage(based on the total mass of guar gum base solution,the same below)and pH on the JSA-1 crosslinking performance were investigated.The results showed that higher guar gum mass fraction(0.09%~0.4%)led to better crosslinking state,shorter crosslinking time,higher apparent viscosity,and stronger temperature resistance of guar gum fracturing fluid,and JSA-1 dosage(0.04%~0.4%)exhibited the same influence as guar gum on the crosslinking state,crosslinking time,as well as temperature resistance of guar gum fracturing fluid,while higher pH(pH=4~14)achieved longer crosslinking time and stronger temperature resistance of guar gum fracturing fluid.Crosslinking agent JSA-1 could be prepared from a wide range of pH and guar gum mass fraction.In terms of low-temperature formula,it could effectively crosslink low mass fraction guar gum.When the guar gum base solution with a mass fraction of 0.13%was crosslinked with JSA-1,the apparent viscosity could reach 50 mPa·s at room temperature,100 s^(–1)shear.In terms of high-temperature formula,the fracturing fluid prepared by cross-linking mass fraction 0.4%guar gum base solution with JSA-1 had good temperature and shear resistance,and its apparent viscosity could stably maintained at around 300 mPa·s under 120℃,100 s^(–1)shear conditions.

关 键 词：胍胶压裂液 有机硼交联剂 合成 低浓度胍胶 性能评价 耐温耐剪切 油田化学品 

分 类 号：TE39[石油与天然气工程—油气田开发工程]