| VAM TOP HC (High Compression) is a T&C connection based on the main features of the VAM TOP connection. This connection has been designed for various High Compression applications where it may be necessary to apply extreme compressive loads to the string (Elevated temperature inducing compression, compaction, subsidence .) BENEFITS
- Extreme compression resistance
(Improved with regards to VAM TOP one)
- Excellent
gas-tight sealing under combined loads
- Excellent
resistance to bending and torque
- Excellent resistance
to external pressure and compression
- Easy to
use and repair
New Metal-to-Metal Seal
- A patented metal-to-metal seal system offers from 4 1/2" to 7 3/4" excellent gas tight sealing even under the most severe combined loads
- Sealing integrity remains constant
despite repeated make-ups and break-outs.
- Seal geometry protects against galling.
Reverse Angle Torque Shoulder
- A reverse
angle torque shoulder provides a positive torque
stop which allows for accurate power tight make-up
and minimizes hoop stresses in the connection.
- The wedge effect caused by the reverse angle
gives the connection superior structural strength.
- The shoulder design
was optimized in order to resist adverse conditions
such as combined
compression and
external pressure or combined bending, compression
and torque.
- The torque shoulder dimension on VAM TOP HC
is significantly larger than VAM TOP and
with a
mixture of reduced
torque this enables the connection to withstand
extreme compressive loads that are achievable
for the pipe
body (See the corresponding gas tight VME
Performance Envelope)
Improved Hook Thread Design
- A modified
hook thread profile, with 3° reverse angle
on the load flank not only provides the connection
with
superior tension strength but also increases its
resistance to compression.
- The excellent structural strength including
the increased bending and compression resistance,
makes
this connection
especially suited for highly deviated and long
horizontal wells.
- Optimized thread geometry minimizes the risk
of galling even when thread lubricants are
poorly applied.
Coupling Design
- Coverage
of the vanishing threads, long internal shoulder,
and coupling critical cross sections greater than
those of the pipe body, contribute to a high performance,
100% efficient connection.
Streamlined Internal profile
- A pin ID chamfer, tight tolerances on the coupling center and a long shoulder combine to minimize turbulence and energy loss inside the connection for high velocity gas flows encountered.
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