Y211型拖动压裂封隔器研制与应用  

Development and Application of Y211 Dragging Fracturing Packer

作　　者：任国富[1,2] 徐自强[1,2] 王在强[1,2] 付钢旦[1,2] 桂捷[1,2] 邵媛[1,2] 蒙鑫[1,2] 胡相君[1,2] 

机构地区：[1]长庆油田分公司油气工艺研究院,西安710065 [2]低渗透油气田勘探开发国家工程实验室,西安710065

出　　处：《石油矿场机械》2015年第9期60-61,共2页Oil Field Equipment

基　　金：中石油集团公司科技项目"油气藏储层改造技术重大现场攻关试验"(2012FCGYLGZ002)

摘　　要：常规K344型封隔器用于大排量拖动压裂时存在寿命短、管柱易被卡等问题。设计了一种Y211型拖动压裂封隔器,采用卡瓦锚定、压力平衡式解封、正反循环冲砂等技术。现场试验表明:研制的封隔器一次下井平均可压裂6.2段,较K344型封隔器大幅提高。Aiming at the problem that current K344 packer has low working life,pipe-sticking,etc. when used in high displacement dragging fracturing,a Y211 dragging fracturing packer is devel-oped,slip anchor mechanism,pressure balance unset mechanism,direct and reversed circulation sand washing mechanism are used in the Y211 packer.Field tests demonstrate that the Y211 packer can fracture 6.2 stages one trip,which is improved than K344 packer.

关 键 词：封隔器 压裂封隔器 拖动压裂 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]