Innovative Retrievable Lock Mandrel Extends Monobore-Completion Potential

摘要

Monobore completions are an efficient way to exploit multilayer reservoirs. During the life of a field, targeted layers can be opened or closed to optimize hydrocarbon production and avoid undesirable fluid entry. For these cases, nippleless retrievable bridge plugs often are required to isolate a specific reservoir. However, tools currently available fail as a result of their traditional rubber sealing element. To solve these problems, a tool has been developed that is based on a segmented sealing ring that expands by the mechanical displacement of blocks.