SLB
768 Case Studies
A SLB Case Study
Coil Tubing Services Company worked with SLB after an operator damaged a retrievable bridge plug during coiled tubing milling operations, leaving the plug stuck above stimulated zones. A previous fishing attempt failed and sheared the retainer nut, creating a difficult engagement profile and causing significant nonproductive time.
SLB’s CoilTOOLS intervention tools and solutions team created a custom taper tap fishing tool to spear the inner mandrel, retract the slips, and make the bridge plug retrievable again. With the specialized tool and an overshot run, Coil Tubing Services recovered the fish in three runs over 14 hours, versus more than 12 runs and 72 hours in the prior failed attempt.
Coil Tubing Services Company