可回收速溶稠化酸体系的研发与应用  

DEVELOPMENT OF RECYCLABLE INSTANT GELLED ACID SYSTEM AND ITS APPLICATION

作　　者：高燕[1] 张冕[1] 邵秀丽[1] 

机构地区：[1]川庆钻探工程有限公司长庆井下技术作业公司

出　　处：《钻采工艺》2017年第4期94-97,共4页Drilling & Production Technology

基　　金：中国石油天然气集团公司工程技术科技统筹项目"长庆苏里格气田合作开发区块持续稳产关键技术研究"(2017T-004-001)

摘　　要：针对目前长庆气田使用的稠化酸存在酸化后残酸液不能回收再利用、配液增稠时间长等问题,研制出了一种可回收速溶稠化酸配方,该体系由20%盐酸+2.0%~4.0%稠化剂XYS-101配制而成,性能与现用稠化酸性能相当,且具有无残渣、温控破胶、溶解增黏速度快、可实现边配边注、可回收再利用(3次以上)等特点。现场应用效果良好,在满足提高低渗气井的酸化增产效果的同时能够达到节能减排的目的。The gelled acids presently used at Changqing gasfield have the disadvantages of the residual acid after acidizing unable to be recycled and long thickening time when preparing gelled acids,so a recyclable instant gelled acid is developed,made up of 20% hydrochloric acid and 2. 0% ~ 4. 0%thickener XYS-101,with comparative performance. In addition to the advantages of no residue, temperature-controlled gel breaking,less time used for thickening,and injection-wile preparing and being recyclable( at least 3 times). This gelled acid has obtained pleasant result in actual application which can enhance acid stimulation effects at low permeability gas wells,as well as energy conservation and emission reduction

关 键 词：可回收稠化酸 速溶 重复利用 现场应用 

分 类 号：TE377[石油与天然气工程—油气田开发工程]