Baker Hughes introduced the EasyReach extended-reach coiled-tubing (CT) service to provide operators with an economical solution to reach total depth consistently in extended-reach laterals. The service comprises advanced simulation software, a lubricant specifically designed for downhole CT applications, and a field-proven fluid-hammer tool. It provides predictable performance during cleanouts, acidizing, stimulations, and other CT applications in long horizontal wells. Proprietary modeling software is used to design and execute the service. When necessary, the fluid-hammer tool periodically interrupts fluid flow to pull the tubing deeper into the well. It also reduces friction and delays the onset of helical buckling and lockup. The lubricant reduces mechanical friction with improved sliding efficiency and higher rates of penetration, offering consistent performance in extreme environments. The service was applied to a horizontal monobore with 5½-in. casing during a recent field trial. The service reduced the wellbore’s coefficient of friction to 0.13 (from the measured value of 0.24 obtained on previous runs) and enabled CT to reach total depth with enough available weight to activate the deployment packer and complete the job. On the basis of the service’s performance in this well, combining the lubricant with the fluid-hammer tool would have permitted the operator to perform the desired application in a lateral more than 13,000 ft in length.
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