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 EP2532830(A2) 申请公布日期 2012.12.12
申请号 EP20120169335 申请日期 2012.05.24
申请人 WEATHERFORD/LAMB INC. 发明人 SMITH, RODDIE R;MACLURG, MICHAEL JOHN;BIRNER, WOLFGANG HORACE
分类号 E21B23/02;E21B33/04;E21B34/10 主分类号 E21B23/02
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