Richard Silk, Managing Director,
        
        
          Mirage Machines, UK,
        
        
          assesses how a
        
        
          new generation of hot tapping assemblies
        
        
          provides the assurance that operators need
        
        
          to greenlight maintenance projects.
        
        
          
            T
          
        
        
          he process of hot tapping, sometimes called
        
        
          pressure tapping, is one in which a connection
        
        
          is made to an existing pipeline or other type of
        
        
          pressure vessel while still in service and maintaining
        
        
          working pressure. That means the operational capabilities of the pipeline
        
        
          can continue without interruption while the modification or maintenance is
        
        
          carried out.
        
        
          In certain circumstances, the method is also used to drain off pressure that is
        
        
          unwanted or unknown that could cause problems to any subsequent operations.
        
        
          The ‘hot’ aspect does not necessarily refer to the temperature at which the process
        
        
          is carried out – it is used more to describe the same way that a USB stick or other storage
        
        
          medium can be plugged in, and removed, from a computer without turning it on or off.
        
        
          
            DISRUPTION
          
        
        
          Figure 1.
        
        
          Mirage Machines’
        
        
          hot tapping assemblies
        
        
          are deployed onshore
        
        
          and offshore by major service
        
        
          companies and operators, worldwide.
        
        
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