Positioning that starts with the well design.
Centralizers help maintain clearance between the casing and the wellbore. Their selection and placement form part of the wider casing-running and cementing programme.
Bow-spring configurations
Flexible bow elements provide stand-off while accommodating changes in bore diameter. Selection considers restoring force and the forces involved in running the casing.
Rigid configurations
Rigid centralizers provide a defined outside geometry. Selection considers bore clearance, restrictions and the operating conditions of the application.
Accessories and placement
Stop collars and other specified accessories support the planned centralizer arrangement. Compatibility and placement should be reviewed as part of the casing programme.
Dimensions, materials, performance data and applicable testing requirements are confirmed against the selected product and agreed specification.