COFLEXIP & Services Inc.
In drilling, it outperforms both
hose and pipe with swivel joints
Coflexip flexible pipe lowers costs
and raises the safety factor on
Coflexip initially costs more
than other Alternatives for choke
and other drilling jobs. But it lasts
so much longer that the cost is
actually lower in the long run.
That's based on the materials cost
alone. If the downtime cost
avoided by a line that lasts longer
is included, Coflexip is cheap
compared to other solutions.
For many jobs, Coflexip is a
lot safer than rubber or pipe with
swivels because of its strength,
resistance. What price can be put
applications tells exactly how and
where Coflexip can save you
Actually tougher than rigid steel
In comparison to API 5LX steel
pipe, Coflexip flexible steel pipe
resistance, and better resistance to
vibration and flexing fatigue.
It requires less maintenance in
compatible with more chemicals,
Compared to reinforced rubber
hose, Coflexip has greater crush
ultraviolet resistance, and flexing-
fatigue resistance. It stands up to
including H2S, and suffers almost
no aging damage.
Coflexip works because of a
Coflexip is a unique combination
In the basic Coflexip construction,
the carcass of interlocking Z-
section steel handles the radial
loads, including internal pressure,
and keeps the pipe
Crush strength of Coflexip pipe is
truckload of drill pipe on a piece of
rotary hose. The pipe remains
perfectly round under the 9.000-lb.
Alternating spiral layers of heavy
steel wire handle the tension loads
strength comparable to rigid pipe.
thermoplastic layers protect the
corrosion and make the pipe
leakproof. There is no bonding
between layers. When the pipe
bends, each layer
The interlocking spiral of steel -
section is the structural element
that withstands radial loads from
internal and external pressures.
and keeps the pipe from kinking.
moves independently. That's why
the fatigue resistance of Coflexip
is much higher than that of
For most drilling applications.
the outer thermoplastic layer is
covered with a stainless steel wrap
production applications, an extra
stainless steel layer goes on the
inside, to prevent damage from
have been developed for specific
applications in sizes from I to 22
inches I.D., with working pressures
up to 15,000 psi, and continuous
lengths of more than one mile.
There is no bonding between
layers in the Coflexip structure as
reinforced rubber hose.
That's why Coflexip has such
extreme' high resistance to flex
fatigue. Four inch Coflexip pipe
has withstood 1,600,000 flexing
maximum working pressure before
failure due to the unnaturally
induce temperature of +1001°C.
A long list of uses
Since 1972, Coflexip has been
successfully used in almost every
major oilfield in the world. In the
Gulf of Mexico and onshore, it
· Offshore platform risers
Subsea mudslide protectors
Vent and flare lines
Temporary production systems
Permanent production systems