石油钻井用破胶剂的制备及性能研究  

Preparation and properties of gel breaker for oil drilling

作　　者：曹悦贤 祝乐 戚娟 CAO Yuexian;ZHU Le;QI Juan(CNPC Great Wall Drilling Company Co.,Ltd.,No.1 Drilling Company,Panjin 124010,Liaoning,China;CNPC Great Wall Drilling Company Co.,Ltd.,Beijing 100101,China;Southwest Branch of China Petroleum Engineering Construction Co.,Ltd.,Chengdu 610041,Sichuan,China)

机构地区：[1]中国石油长城钻探工程有限公司钻井一公司,辽宁盘锦124010 [2]中国石油长城钻探工程有限公司,北京100101 [3]中国石油工程建设有限公司西南分公司,四川成都610041

出　　处：《能源化工》2023年第4期69-72,共4页Energy Chemical Industry

摘　　要：针对传统过硫酸钾固体破胶剂无法稳定加料和高温破胶不彻底等问题,提出了一种新型的液体破胶剂体系,并对破胶剂体系配方进行优化。优化后的高温碱性液体破胶剂体系配方(w)为0.05%的Y-1型破胶辅剂,5%的T-1型抗冻剂,0.4%的S-1型缓蚀剂,破胶剂用量为0.1%。按该配方制备的破胶剂体系凝点为-27℃,腐蚀速率为0.1 g/(m^(2)·h),12 h质量损失为1.3 mg,处理压裂液后残渣的质量浓度为158mg/L。现场使用结果表明,制备的高温液体破胶剂体系具有良好的破胶效果。In view of the problems that the traditional potassium persulfate solid gel breaker can not feed stably and the high-temperature gel breaking is not complete,a new type of liquid gel breaker system is proposed,and the formula of the breaker is optimized.The optimized formula of the high-temperature alkaline liquid gel breaker system prepared in this experiment is:0.05%Y-1 type gel breaking auxiliary,20%T-1 type antifreeze,0.4%S-1 type corrosion inhibitor,and 0.1%gel breaker prepared in this experiment.According to this formula,the condensation point of the breaker system is-27℃,the corrosion rate is 0.1 g/(m^(2)·h),the mass loss is 1.3 mg after 12 h,and the mass concentration of residue after treating fracturing fluid is 158 mg/L.The application results show that the prepared gel breaker system has good gel breaking effect.

关 键 词：胍胶压裂液 破胶剂 破胶性能 破胶残渣 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]