Concentric tubing workover:

Equipment needed is essentially the same as that for a conventional workover except that it is smaller and lighter.

Terms Related to Concentric tubing workover

• Coiled-tubing workover

  A workover performed with a continuous steel tube, normally 3/4 inch to 1 inch outside diameter, which is run into the well in one piece ...

• Reeled tubing

  Lighter-duty well maintenance than hydraulic workover, employing small od tubing capable of descending down the production string under well pressure

• Hydraulic workover

  A series of hydraulic rams to restrain and pull tubing under well pressure, temporarily attached to the wellhead for workover.

• Modular-spaced workover rig

  Workover equipment designed in equipment packages or modules that are light enough to be lifted onto an offshore platform by a platform crane. In most ...

• Workstring

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

• Workover string

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

• Macaroni rig

  A workover rig, usually lightweight, that is specially built to run a string of 3/4 inch or 1-inch tubing. See macaroni string.