摘要
针对某油田储层普遍具有低温(20~70℃)、低矿化度(氯离子浓度1000~3000 mg/L)的特点,进行了低温低矿化度可溶桥塞研究。室内试验及现场应用效果表明:低温低矿化度可溶桥塞能够承压70 MPa,在低温低矿化度条件下实现桥塞全部可溶,且溶解速率大幅提升,在某水平井多段压裂上具有广阔的推广应用前景。
Because of the characteristics of low temperature(20~70℃)and low salinity(1000~3000 mg/L Chloride Ion concentration)in an oilfield,this paper studies soluble bridge plug with low temperature and low salinity.The results of laboratory test and field application show that the soluble bridge plug can bear pressure 70 MPa,all the bridge plug can be dissolved under the condition of low temperature and low salinity,and the dissolution rate can be greatly increased,it has a wide application prospect in multi-section fracturing of a horizontal well.
作者
赵烁
李鹏辉
李云涛
王玉明
刘亚军
杨丽霞
ZHAO Shuo;LI Penghui;LI Yuntao;WANG Yuming;LIU Yajun;YANG Lixia(Engineering Research Institute PetroChina Tuha Oilfield Company,Shanshan 838202,China)
出处
《机械工程师》
2021年第3期133-135,共3页
Mechanical Engineer
关键词
可溶桥塞
压裂
低温
低矿化度
soluble plug
fracturing
low temperature
low salinity
