TPi March 2017

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52 TUBE PRODUCTS INTERNATIONAL March 2017
OCTG, gas & pipel ine products
Extending API line pipe manufacturing
12" diameter
International Industries Limited (IIL), a
steel and plastic pipe manufacturer and
exporter, manufactures certified ERW
steel pipe for petroleum distribution
systems.
The company has extended its ERW
API product range from 6" OD to 12"
OD, and has simultaneously extended
its HDPE product range from 630mm to
1,600mm OD.
IIL’s API certified 12" OD tube mill is
the latest addition to the company’s
manufacturing facilities. The tube mill
can produce API sizes from 6" to 12"
OD in thickness ranging from 4 to
12.7mm, in accordance with ANSI/API
Specification 5L, complementing the
already available API sizes from ¾" to
6" OD.
The mill is equipped with a solid
state/high frequency welder for high
integrity forge welding, and an on-line
inner bead trimmer. In order to ensure
quality and compliance with the API 5L
specification, the weld seam and the
entire heat affected zone is heat treated.
In addition, IIL pipes are processed
and heat treated through on-line seam
annealing so that no un-tempered
martensite develops on the weld seam
or heat affected zone. The company
offers a full range of end finishes,
including facing, bevelling, threading
and roll grooving.
In addition to API line pipe, IIL
manufactures medium density
polyethylene (MDPE) gas pipe for the
distribution of natural gas, liquefied
petroleum gas and other gaseous
fuels. These pipes are manufactured
on German and Austrian equipment
to meet the performance requirement
of British Gas Technical Specifications
(BGC/PS/PL2) and the American
Petroleum Institute Specification for
gaseous fuel (API 15LE). IIL’s MDPE gas
pipes are available in sizes ranging from
20 to 250mm, and thicknesses from 1.8
to 22.7mm.
International Industries Ltd – Pakistan
Entering new depths with Aasta Hansteen
Measurement and inspection tech-
nology specialist Optical Metrology
Services (OMS) has completed the
remote measurement and inspection of
a number of 230m-long pull tubes for
Statoil’s deep-water Aasta Hansteen
SPAR project.
The project is at 1,300m below sea level
in the Norwegian Sea. Manufactured
by Hyundai Heavy Industries, the SPAR
platform is the largest structure of its
kind to date, measuring 195m in height
and capable of producing 23mn cubic
metres of oil and gas per day.
Due to the adverse and remote location
of the platform, there were a number
of considerations regarding the steel
catenary risers connecting the subsea
pipelines to the topside platform.
This required OMS to perform a detailed
and accurate inspection of the pull
tubes, which provide the mechanism
to connect production risers, product
export lines and pump caissons.
Any defects or obstructions within the
pull tubes could create major issues
once the platform was positioned at
sea, where they could not be rectified.
Through OMS’s ranged inspection,
Aasta Hansteen was able to go ahead
with the next development phase
without the likelihood of failure and
considerable additional project costs.
OMS operator Tim Green commented,
“The SPAR project proved a major task
for OMS, being one of the largest we
have undertaken. Through our agile,
robust and versatile service, Aasta
Hansteen were able to go ahead with
the next stage of the development with
confidence in completing the project
both on time and in budget.
“This is further evidence of the inno-
vative measurement and bespoke
inspection solutions OMS can offer
in addressing challenges faced by
businesses on a global scale.”
OMS – UK
Certified ERW pipes