Case Study: CT Tools Company mills 34 plugs in a single run with SLB DynaForce TT motor

DynaForce TT Motor Mills 34 Plugs in Single Run in a 350 degF Haynesville Bossier Shale Reservoir

SLB worked with CT Tools Company on a milling job in the Haynesville-Bossier shale in East Texas, where bottomhole temperatures reached 350 degF. The customer needed to mill 34 fracturing plugs in a horizontal section at 12,700 ft in a single run, after previous similar wells had required multiple motors and extra cost.

SLB recommended its 2⅞-in 7-stage DynaForce TT thru-tubing motor with a proprietary NBR-HR elastomer, configured for high temperature performance to reduce the risk of premature chunking. The job was completed with one motor in a single run, milling all 34 plugs in 40 hours across a 7,400-ft horizontal section, with the motor still functional afterward and average milling time of 9 minutes per plug.