TPi May 2017

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business & market news
18 TUBE PRODUCTS INTERNATIONAL May 2017
Stainless steel pipes
for offshore oil and gas
industries
At the Offshore Technology Conference
(OTC) in Houston, Texas, USA, Schoeller
Werk will exhibit its solutions for the
extraction of oil and gas on the high
seas, which are tailored to industry
requirements.
At stand 3615-3 in Hall B the company,
which specialises in German-made
longitudinal seam-welded piping, will
demonstrate its heavy-duty control line
and chemical injection pipe solutions,
which are precision-designed for use at
a depth of 10,000m below surface level.
The surface quality of the pipes and the
quality of the welded seam allow the
pipes to withstand extreme conditions.
For customers in the offshore industry,
the array of products is enhanced by
a broad range of services, including
encapsulation, and flushing and filling
of pipes.
The requirements for piping in the
offshore industries are demanding:
extreme pressure, temperatures up to
300°C, aggressive media and salt water.
Any fault can lead to loss of energy,
high repair costs and, in the worst
case, environmental damage. At OTC
Schoeller Werk will demonstrate how
these challenges can be met.
The company is a manufacturer of
stainless steel piping with 35 years of
experience in the offshore industry.
At the conference, the focus will be
on chemical injection and control
line piping. These deal with pumping
chemicals into an oil reservoir or act as
hydraulic control pipes for safety valves.
Schoeller Werk uses a wide range of
austenitic stainless steels and nickel-
based alloys as well as a special
manufacturing process to finalise the
pipes. They are first welded using the
tungsten inert gas (TIG) technique,
then subjected to a drawing process
to reduce the pipe walls to the required
thickness. The company states that this
results in superior surface quality and
better quality of the welded seam. Even
at a microstructural level, the weld is
hardly noticeable. If required, the company can supply
solutions with an external diameter of
3.18 to 25.4mm; the wall can range from
0.5 to 2.11mm in thickness. Depending
on the specifications, the pipes can be
suitable for pressures as high as 2,500
bar. It is also possible for customer-
specific requirements to be supplied, if
found to be feasible after assessment.
Schoeller Werk supplements this range
of products with services to deliver an
overall concept for the offshore industry.
These services include encapsulation of
pipes with plastic sheathing in flat-pack
format, and flushing and filling of pipes.
The company can also equip pipe
bundles with TEC and PDC cables
or stainless steel bumper wires. The
smooth pipes are also suitable for
installation of fibre optics.
Schoeller Werk GmbH & Co KG –
Germany
Oil and gas pipeline with control line and
clamp
Photo credit: Schoeller Werk
Photo credit: Schoeller Werk
Schoeller Werk’s ‘flat packs’
are pipes sheathed in plastic