日用化学工业（中英文）2023，Vol.53Issue(10)：1125-1131,7.DOI:10.3969/j.issn.2097-2806.2023.10.002
耐高温羧甲基胍胶压裂液性能及应用
Performance and application of high-temperature resistant carboxymethyl guar gum fracturing fluid
摘要
Abstract
The"Shan-2"in the western exploration area of Jidong Oilfield is mainly a tight gas reservoir with high temperature and poor porosity and permeability,in which the gas can only be produced by fracturing.Conventional guar gum fracturing fluid has poor high-temperature resistance and it is easy to cause secondary damage to the formation.To solve this problem,based on chelation mechanism,a kind of high-temperature resistant carboxymethyl guar gum fracturing fluid was developed.Its rapid thickening,viscoelasticity,high-temperature resistance,shear resistance and formation damage performance were studied in detail.The results showed that,the viscosity of this fracturing fluid could reach 51 mPa·s within 4 minutes.Its temperature resistance could reach 130-180℃.The viscosity of the gel breaking fluid was less than 1.5 mPa·s.Therefore,this fracturing fluid could meet the requirements for the target stratum.Finally,for some low-producing and low-efficiency wells in the field,the clean fracturing technology using the carboxymethyl guar gum developed had achieved clean fracturing with low damage.Old cracks were closed and new cracks were opened.The stimulated reservoir volume was increased.The output of low-producing wells had been increased by 3-5 times.This work might provide technical support for continuous and stable production in the western exploration area.关键词
低产高效/压裂液/耐高温/羧甲基胍胶/暂堵转向Key words
low production and high efficiency/fracturing fluid/high-temperature resistance/carboxymethyl guar gum/temporary blocking steering分类
能源科技引用本文复制引用
钟举,Bauyrzhan Sarsenbekuly,殷夏,康万利..耐高温羧甲基胍胶压裂液性能及应用[J].日用化学工业（中英文）,2023,53(10):1125-1131,7.基金项目
国家自然科学基金海外青年学者资助(52250410349) （52250410349）
哈萨克斯坦共和国科学和高等教育部科学委员会(AP113067796) （AP113067796）
