TPI July 2011

Corrosion resistant tube and pipe 27km BuBi pipes for North Sea oil and gas field

the aggressive oil and gas mixture is extracted.

takes place via a single platform, which also serves the oil and gas in the neighbouring Cyrus and Farragon fields. One advantage of the BuBi pipe is the large number of possible material combinations. In this case, the customer chose DNV grade 450 (outer pipe) with 316L (inner pipe). The size was 355.6 x (14.3+3) mm. Butting delivers the pipes to the town of Wick in the north of Scotland, where the pipes are welded into bundles that consist of an outer support pipe containing several production and service pipelines, hydraulic pipes and umbilicals. The BuBi pipes with their corrosion-resistant inner pipes are used for the pipeline through which

Companies from the oil and gas industry have for decades relied on the stability and long life of mechanically linedButting bi-metal pipes (BuBi ® pipes). They bring benefits when the requirements for the pipe caused by pressure and corrosion can be distributed between the inner and outer pipe. The BuBi pipe has a wide range of possible uses. For example, Butting has manufactured 27km of pipes for the Andrew project. The oil and gas field of the same name is located in the North Sea, around 230km north-east of Aberdeen, and covers an area of 27km². The accessible reserves are to be found at around 115m water depth and amount to about 150mn barrels of crude oil and natural gas. Extraction

For this project, a total of four bundles are used, in lengths of 6-8km each. After welding has been completed onshore, the bundles are launched to sea by two ships. Later they will transport the resources extracted from the well to the Andrew platform. In addition to the pipes for the bundles, Butting has also produced and supplied riser pipes and pipes for tie-in spools in Super-duplex for the Andrew programme. H butting GmbH & co KG – Germany info@butting.de www.butting.de

BuBi-pipes from Butting

Photo credit: H Butting GmbH & Co KG

Nickel alloy piping distributor extends range Hart bv has been a distributor of heat and corrosion resistant materials for over 40 years. Nickel, Monel, Incoloy, Hastelloy and titanium alloys are supplied globally to the chemical, petrochemical and offshore industries. industries. Hart has an extensive stock range of seamless pipe, fittings and flanges in Alloy 200/201, Alloy 400, Alloy 600, Alloy 625 and Alloy 825. The company’s stock programme now ranges from ½" up to and including 6" in common wall thicknesses. material or, for larger quantities and longer deliveries, through major nickel and titanium manufacturers. Hart is ISO approved and has approval to remark material in accordance with PED, and can comply with all international standards and specifications.

Complete packages of pipe, flanges/ forgings, plate, bar and fittings are supplied to fabrication companies, contractors and engineering companies, and also direct to the oil and gas

Hart works together with renowned manufacturers worldwide who specialise in thesematerials. The company supplies either through its extensive stocks of

Hart bv – The Netherlands sales@hartbv.nl www.hartbv.nl

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Tube ProducTs InTernaTIonal July 2011

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