发明名称 VELOCITY STRINGS
摘要 A velocity string installation method comprises the steps of: removing an existing safety valve from a production tubing safety valve nipple; running a velocity string into the production tubing to engage the safety valve nipple; and then running a velocity string safety valve into the velocity string and coupling the safety valve with a port at the safety valve nipple.
申请公布号 CA2777334(C) 申请公布日期 2016.05.03
申请号 CA20122777334 申请日期 2012.05.23
申请人 WEATHERFORD/LAMB, INC. 发明人 SMITH, RODDIE R.;MACLURG, MICHAEL JOHN;BIRNER, WOLFGANG HORACE
分类号 E21B43/12;E21B17/18 主分类号 E21B43/12
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