Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10)

Child Classifications

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• E21B 23/001
• E21B 23/004
• E21B 23/01 for anchoring the tools or the like (E21B23/02 - E21B23/06 take precedence; anchoring of drives in the borehole E21B4/18)
• E21B 23/02 for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing (E21B23/03 - E21B23/06 take precedence)
• E21B 23/03 for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets
• E21B 23/04 operated by fluid means, e.g. actuated by explosion (E21B23/08 takes precedence)
• E21B 23/06 for setting packers
• E21B 23/08 Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
• E21B 23/14 for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells