摘要
介绍一种新型水力压差式封隔器 (专利号 :ZL96 2 12 5 95 .4) ,该型封隔器采用分体组合式 ,双液缸 ,双级胶筒密封 ,直连喷砂体的结构 ,具有结构简单 ,坐封方便 ,逐级解封载荷轻且可靠 ,反洗通畅 ,易解卡 ,耐压差大等优点 。
The paper presents a new type of hydraulic differential packer (Patent NO.ZL 96212595.4).The packer adopts the structures of double hydraulic cylinder,double stage packing element sealing and direct wire sand blasting mass.It has many advantages,such as simple structure,convenient setting,easy unfreezing and pressure resistance etc..The packer can meet the needs of multizone fracturing technology in mid-deep well.
出处
《钻采工艺》
CAS
2001年第2期46-47,共2页
Drilling & Production Technology