Definition:
Thru-Tubing Bridge Plugs
Remarks:
hru-tubing plug-back projects are a low cost/high success rate alternative to expensive rig jobs.
Thru-tubing plug-back projects use a thru-tubing bridge plug (T-TBP) and special cement slurry system to achieve zonal isolation in casing. T-TBPs allow operators to run thru small restrictions and set in casing diameters four times the T-TBP run-in diameter. T-TBPs are typically run on WL, slickline, and CT.
· Project Goals – The three most common thru-tubing plug-back project goals are:
i. isolation of a well zone, therein providing the option of perforating a well zone, up-hole,
ii. interzonal isolation between existing perforated intervals, and
iii. temporary or permanent abandonment of a well or specific well zone.