seed bag

packer setting control line

封隔器坐封液压控制管

retrievable hydraulic-set casing Packer

可收回的液压坐封套管封隔器

multistring hydraulic-set packer

多管水力坐封封隔器

wireline packer setting

电缆操作封隔器坐封

hydro-set permanent packer

永久式水力坐封封隔器

hookwall compression-set packer

井壁式压缩座封封隔器

Development and Application of Repeated Setting Hydraulic Anchor and Repeated Switch Oil Drainage

可重复坐封液压锚定器和反复开关泄油器的研制与应用

Galvanic Corrosion Research of Production Tubing, Production Casing and Packer Materials in Packer Fluid;

油套管及封隔器用钢在封隔液环境下的电偶腐蚀行为研究

single string retrievable packer

单管可收回式封隔器

open hole single packer test string

裸眼单封隔器测试管柱

inflatable packer test string

胶囊封隔器测试管柱

hydraulic-set dual hanger

水力坐封双管悬挂器

Separate Layer Fracturing String with Y241 Packers and Application in Changqing Gas Field

Y241型封隔器分压管柱及在长庆气田的应用

Self-pressured two-way jam packer outside the casing for cementing high pressure formation

套管外封隔器自增压式双卡高压层固井技术及应用效果

overshot tubing seal divider

打捞筒油管密封分压器

Analysis of Hydrostatic Control Sealing Gap Principle in the High Speed Rotary Union

高速旋转接头中液压控制密封间隙原理分析

straddle packer

跨式双封隔器中的一个封隔器

double-grip large bore single string packer

双卡瓦大内孔单管封隔器