井下压差式常通阀  

Normal Open Solenoid Valve at Pressure Difference

作　　者：李志广[1] 李川[1] 张子佳[1] 黄大云[1] 腾福井[2] 徐德新[3] 

机构地区：[1]大港油田公司钻采工艺研究院,天津300280 [2]大港油田公司第六采油厂,天津300280 [3]大港油田公司井下作业公司,天津300280

出　　处：《石油矿场机械》2009年第10期83-84,共2页Oil Field Equipment

摘　　要：井下压差式常通阀能够克服普通球座(投球式或带球式)进液效果差、易使封隔器误坐封、易沉积赃物、易砂埋的诸多弊端,利用液体截流产生压差进行工作,可实现分采管柱液压封隔器的坐封,既能满足普通油井的生产需求,又能满足大斜度井、大位移井、水平井等特殊井的生产需求,是一种新型井下工具。The normal open solenoid valve at pressure difference, a kind of bottom well tools, for easily overcoming error bench midway, ingress fluid ball type. It utilizes liquid closure to pressure difference to structural design, design facility realization hydraulic pressure basis seal packer, separate layer recovery column packer basis seal. Block up flow in fluid canal, deposit filthy. It is convenient to operate and use, high return ratio, agilely and reliably unlimited as well. It meets the requirement of the production of vertical well, high inclination well, extended well, horizontal well, and multiple well.

关 键 词：井下工具 常通阀 压差式 工作原理 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]