1. n. [Well Completions]

A generic name for a tool or device that is used in the placement or setting of downhole equipment such as permanent packers or plugs. The running tool can be retrieved after the operation or setting process. In some cases, the running tool also is used to retrieve the equipment or tool that has been set in the wellbore.

Synonyms: setting tool

2. n. [Well Workover and Intervention]

A downhole tool used to run and set downhole plugs or similar equipment. The term applies to a range of tools used in workover activities, such as coiled tubing, snubbing or rig-based applications. However, the term is most commonly associated with slickline operations, referring to the tools used to run and set slickline locks, plugs and similar downhole equipment.

Synonyms: setting tool