Composite Plug Removal Operations
Use of composite bridge plugs and frac plugs is a common method of isolating various intervals before perforating and fracturing. Weatherford’s FracGuard® composite plugs have earned a reputation for reliability and millability.
A wide range of composite bridge plugs is available on the market today. These plugs share many common attributes in terms of materials and fundamental design, but their millability can vary signiﬁcantly. As a group, components within the composite plugs can exhibit a tendency to become dislodged and spin with the mill during mill-out operations, which often requires the use of brute force to overwhelm the plug and complete the milling operation. A motor capable of withstanding the high weight on bit (WOB) often required to remove these plugs is essential. Its high WOB ratings enable the rugged CTD® motor to perform under these demanding circumstances.
Weatherford’s extensive testing, coupled with our Performance Tracking System analysis, has revolutionized milling techniques, bottomhole assemblies (BHAs), and mill selection for the composite plugs available on the market today. The various characteristics of each plug have been taken into account in the development of Weatherford’s best practices. The key performance measurements in composite plug removal are the minimization of milling time and overall cutting size.
Weatherford’s optimized composite bridge plug milling BHA and ClearCut™ mill technology are capable of consistently removing multiple plugs in one continuous run.