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Oil & Gas
Onshore line pipe
Construction / Solutions
VAM® 50 Years
Oil & Gas
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BOLT is a Premium Flush Casing connection suitable for tight clearance applications, especially big bore subsea well heads. It is easy to run and provides superior sealabilities and mechanical integrity in extreme loads.
Available in sizes from 11 ¾'' to 18''
Standard, alternative and special drifts
Validated for Carbon and Sour Service grades, as well as
Yield strengths from 80 ksi to 125 ksi
Other sizes and grades available upon request.
Big bore subsea well heads which require tight clearance surface casing in 18" and 16" diameter
Complex designs, driven by clearance and high performance e.g.
, deep offshore wells, where many casing strings might be required
Contingency liner application
Thicker intermediate casing (e.g. 14'' instead of 13 3/8'').
100% flush integral joint
Double metal-to-metal seals provide internal and external pressure tightness
Sealability validated with combined load cycles based on last ISO 13679 standard (for example, 11 7/8'' 71.8# size is qualified according to ISO 13679 FDIS 2011 CAL I-E)
Maximum compression resistance (100% of the connection yield strength)
Excellent mechanical integrity due to rugged and dovetail thread
Easy running through fast make-up with double start thread, improved stabbing, and the square shoulder that provides high break-out resistance and reliable make-up.
Excellent jump-out resistance
High sealability in combined loads
Validated with environmental friendly thread compound.
Connection Data Sheet
VAM® Licensee Network
VAM® BOLT Brochure
OCTG Product selection Guide
VAM® BOLT VIDEO