TPI April 2009

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April 2009 Tube Products International 49
Pipel ine productsOCTG goods and
to detect bending and pipe velocity,
leading to automatic adjusting of the
spray head position according to pipe
bending and linear speed. There also
savings to be made in sleeve and
wrapping processes.
3M invented fusion-bonded epoxy
coatings and the first pipeline was
installed in 1960. The company also
developed dual-layer technology.
FBE performs well in acid, base, salt
water and solvents (although alcohol
can soften the coating). Nordson has
studied the coating process for FBE
and improved the efficiency and film
consistency with better process control
and advanced spray guns. Field joint
coatings are critical to pipeline integrity.
ExxonMobil Development has been
comparing systems: FBE is the logical
choice for mill applied FBE pipes;
moulded solid PU can be used with
an FBE primer; injection moulded PP,
heat shrink sleeves and tapes are used
for multilayer systems. Each method
has advantages and drawbacks. New
technology includes fused PP tape with
an FBE primer, wide sheet, and low cure
temperature FBE.
Canusa-CPS has outlined factors
for choosing a field joint coating
system including: performance at the
operating temperature; soil stress and
environmental conditions; resistance
to impact; compatibility with existing
coating; ability to withstand construction
handling and cost. The company has
experience of crosslinked polyolefin
heat shrinkable sleeves in a variety of
projects.
Bodycote Testing has carried out work
for most of the major oil operators,
testing the quality of pipe and joint
coating, and examining cases of failure.
The company has built custom test
rigs, including flexural fatigue tests
(simulating movement on the ocean
floor) and full-scale pipe reeling.
Dhatec has looked at pipe storage and
transport and protecting the pipe from
unnecessary damage. The traditional
use of rough pieces of wood and
steel to support pipe regularly leads
to coating flaws. A new pipe support
system has been developed called
System 88, adjustable to different pipe
sizes. Dhatec has studied this in depth
including calculating forces in a stack
of pipes.
Steel pipe with coating and
lining expertise
With over 30 years’ experience, Hatboru Steel Pipe Ind & Trade Co Ltd is a
manufacturer of industrial steel pipe for water projects and drilling. For over
10 years the company has produced a range of SSAW steel pipes (spiral
submerged arc welded), for potable water, petroleum and gas pipelines in
addition to construction and piling.
The company’s factory occupies 100,000m2 open area and 15,000m2 undercover
in the industrial zone of Antakya, close to the east Mediterranean seaports. The
company has three production lines for spiral-welded pipes and one line for
drilling pipes. Total annual capacity is 120,000t, with a size range of DN 200mm
to 3,000mm.
The range includes gas and petroleum pipes (API 5l), water pipes (AWWA
C-200, BS 534, DIN 2460, DIN 1626, TS EN 10217-1), general use purpose
pipes (BS 3601, DIN 1626), pile stake pipes (ASTM A-252), and pipe joint pieces
(AWWA C-208, BS 534).
The company provides expert coating and lining with advanced technology. This
includes bitumen coating and lining (DIN 30673), solvent free expoxy (internal
and external), internal and external galvanising (ISO 1461), polypropylene
coating, coal tar epoxy coating, cement mortar lining (AWWWA C-205), and
anti-rust paints.
The company has quality certification from TS EN, ISO and API, ISO-14001,
OHSAS 18001, DIN and ISO-9000.
Hatboru Steel Pipe Ind & Trade Co Ltd – Turkey
•
Hatboru is a producer of industrial steel pipe S S
The Abu Dhabi Company for Onshore
Oil Applications (ADCO) has extensive
quality control systems in place to reduce
failure, particularly at the design and
manufacture stages of a new pipeline.
The gas producers’ lines need particular
attention due to high temperature and
pressure requirements.
Failure of field joints has been due to
water and oxygen diffusing through PE,
water saturation of the FBE layer and
superficial corrosion of the steel. Pipeline
Coating 2009 was an all round success,
attracting a wide range of companies
from pipe coaters to engineers and
operators: 24 countrieswere represented
from Russia to Argentina.
Applied Market Information Ltd – UK