TPI April 2009

Pipel ine products OCTG goods and

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 sh@amiplastics.com www.amiplastics.com

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.

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,

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.

Hatboru is a producer of industrial steel pipe S S

The company’s factory occupies 100,000m 2 open area and 15,000m 2 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@hatboru.com • www.hatboru.com

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April 2009 Tube Products International