Workover string:

Terms Related to Workover string

• Work string

  The string of drill pipe tubing suspended in a well to which is attached a special tool or device that is used to carry out ...

• Concentric tubing workover

  A workover performed with a small-diameter tubing work string inside the normal tubing. Equipment needed is essentially the same as that for a conventional workover ...

• Drill string

  The column, or string, of drill pipe with attached tool joints that transmits fluid and rotational power from the kelly to the drill collars and ...

• Spear

  A fishing tool used to retrieve pipe lost in a well. The spear is lowered down the hole and into the lost pipe. When weight, ...

• Bumper jar

  A device made up in the drill string that, when actuated, delivers a heavy downward blow to the string. A bumper jar has a hollow ...

• Wall hook

  A device used in fishing for drill pipe. If the upper end of the lost pipe is leaning against the side of the wellbore, the ...

• Workstring

  A string of pipe used in workover of well-servicing operations; not typically considered as production tubing.