COFLEXIP & Services Inc.
Cutting offshore construction costs with flexible pipe
construction dollars because it can
be installed more quickly and
easily than rigid pipe. More than a
including four majors, are now
using it in the Gulf of Mexico for
Coflexip flowlines can be laid in
the Gulf of Mexico with a workboat
or other small vessel. Mobilization
unnecessary which, in itself, cuts
downtime caused by waiting-on-
flexible pipe can be installed in
shorter weather windows.
Coflexip flowlines are much easier
to install than, conventional pipe.
vessels are required.
There's no need for a stinger
in laying Coflexip. The line is
simply paid off a reel into the
water. Installation is accomplished
without constant tension as the
pipe is lowered over the gutter to
the sea floor. In the Gulf of
allows the laying of Coflexip lines
technical advantages over a rigid
riser. It can also reduce costs.
This is true for replacement of
damaged risers, as well as new
construction. A look at various
procedures shows exactly why
Coflexip installations work so fast.
The built-in flexibility of Coflexip
allows installation in short weather
windows and there are no limits on
water depth. The flexible pipe is
always self supporting with a
collapse resistance far above the
Clamp-on risers, flexible versus
To install a clamp-on riser of rigid
mobilized. It's expensive and
often causes delay. Rigid pipe
may require days, even weeks, of
With Coflexip flexible pipe, the
entire installation of a clamp-on
riser can be done using only a
much more efficient when the
necessity of precise positioning is
removed. Just lay the end of the
flexible pipe close to the end of the
other pipe. Divers can then
handling equipment to pull the end
of the flexible pipe into place. Any
kind of flange can be mounted. As
a result, both laying time and diver
time are greatly decreased.
In a previous installation in 27
positioned in 20
A clamp-on riser can be installed
heavy underwater handling device.
completes the job twice as fast as
with rigid pipe, for a lot less.
working hours. The flexible pipes
were 4" and 6" I.D. with a working
pressure of 1,440 psi. Gas
production through the line began
48 hours later.