智能控制固体酸SRA-1释放研究  

Study on release of smart controlled solid acid SRA-1

作　　者：李楠[1] 罗志锋[2] 鄢宇杰[1] 刘卫东 李永寿[1] 汪鹏[4] Li Lan;Luo Zhifeng;Yan Yujie;Liu Weidong;Li Yongshou;Wang Peng(Engineering Technology Research Institute of Sinopec Northwest Oil Field Branch, Urumqi, Xinjiang, China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation of Southwest Petroleum University, Chengdu, Sichuan, China;Karamay Fucheng Energy Company, Karamay, Xinjiang, China;The First Oil Production Plant, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang, China)

机构地区：[1]中国石化西北油田分公司工程技术研究院 [2]"油气藏地质及开发国家重点实验室".西南石油大学 [3]新疆克拉玛依富城能源公司 [4]中国石油新疆油田分公司采油一厂

出　　处：《石油与天然气化工》2019年第1期86-90,共5页Chemical engineering of oil & gas

基　　金：国家科技重大专项"缝洞型油藏堵调及靶向酸压工艺技术"(2016ZX05014-005)

摘　　要：介绍了一种新型智能控制释放的固体酸SRA-1,该酸中固体盐酸GS-1的有效质量分数可达到85%以上。研究了携带液HCl浓度、矿化度、黏度、温度和时间对SRA-1释放性能的影响。结果表明:NaCl对SRA-1的酸释放无明显影响;当携带液HCl的质量分数在12%以上、稠化剂质量分数为0.5‰时,135℃下稳定0.5 h后,SRA-1基本不释放;当携带液HCl的质量分数为10%、稠化剂质量分数为0.5‰时,135℃下稳定1 h后,SRA-1中GS-1保留率仍在50%以上。因此,SRA-1是一种非常具有潜力、可用于储层深度改造的酸材料。This paper introduces a new solid acid (SRA-1) which can be released through intelligent control. Over 85% content of the SRA-1 is solid hydrochloric acid (GS-1), which is measured by acid-base titration. The impacts of acid concentration, salinity, viscosity, temperature and time on SRA-1 release performance are studied. The results indicate that NaCl has no obvious influence on the SRA-1 release performance, and the SRA-1 can not release in half an hour with the conditions of over 12 wt% HCl, 0.5‰ thickener and 135 ℃. With the conditions of 10 wt% HCl, 0.5‰ thickener, and running for an hour at 135 ℃, the GS-1 retention rate of SRA-1 will maintain over 50%. So the SRA-1 is a potential material which can be used for reform in deep reservoir.

关 键 词：智能控制 延迟释放 储层改造 深度酸化 固体酸 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]