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Pipeline Pigs

TDW Offshore Services has the unique ability to engineer, manufacture, and test pipeline pigs that solve multiple pipeline pigging challenges. By focusing on continual innovation in product development, TDW Offshore consistently increases pipeline pig performance and capacity.

TDW Offshore specializes in multi-diameter, multi-function pigs, and we are the leading designer and manufacturer of such pigs.

ADvAnTAgeS

TDW Offshore's pipeline pigs are often piggability-tested before installation to ensure the intended results. The following advantages are some of the benefits to our customers: · Allows the operator flexibility in new pipeline construction, including pigging systems for reduced bores, multi-diameter steps, varying valve bores and other non-full-bore line equipment. · Increased pipeline flow rates by removing wax and build-up in pipelines (some that were thought to be unpiggable) · Dependable low pressure pipeline isolation with simple (non-intelligent) systems · The ability to monitor pipeline pressure during low-pressure isolation projects · Minimized risk, and elimination of the cost of recovering stuck pigs by testing the pig before putting it into the pipeline · Reduced vessel, ROV and dive cost by providing the ability to track and locate pigs at a specific location in a pipelin

Testing pigs using a transparent pipe section.

Engineered simulation of pigging in a check valve.

TDW Offshore employs a dedicated pig development team, and maintains a specialized workshop facility to develop and test customized high performance pigs. Many pigging requirements cannot be addressed by standard "off the shelf" pigs. Typical projects for TDW Offshore include multiple challenges, including the following: · Multiple pipeline diameters · Restricted valve and pipeline equipment boring · High or low pipeline operating temperatures · Limitations in, or lack of, pipeline pig launching/receiving facilities · The need to transverse long wye pieces or unusual T-pieces · Major obstructions in the pipeline system caused by pipeline damage · Small radius pipeline bends · Stringent pig functionality requirements · Long distance pigging · Combinations of the above

PiPeline Pigging APPlicATiOnS

BATching, SePArATiOn AnD DeWATering Batching and separation pigs can be used for dewatering, product displacement, product filling of pipelines and batching of pipeline product. TDW Offshore has in-depth experience in designing and manufacturing batching and separation pigs with high seal integrity. PiPeline cleAning AnD WAx remOvAl Our multi-diameter pigs can be fitted with brushes, scraper blades, magnets, wax removal disks and/or pigging disks suited for cleaning. These pigs have numerous applications, for instance: · Debris removal, suitable for wet or dry pigging in the pipeline commissioning phase · Cleaning, wax removal and fluid removal to restore maximum pipeline performance · Cleaning during decommissioning of pipelines, often customized for use with chemicals and gels mulTi-DiAmeTer PiPelineS TDW Offshore specializes in providing pipeline pigs that are designed to pass through multiple pipeline diameters. In some cases these changes have been as severe as going from 10in to 16in in pipelines. SuBSeA WyeS Subsea wye pieces, when installed in dual-diameter lines, are difficult to pig due to the potential loss of driving force. TDW Offshore has developed specialized pigs that are capable of pigging through wyes in multi-diameter lines while performing multiple functions based on project requirements.

A TDW Offshore-designed test rig at customer premises.

Multi diameter pigs, 42-44" and 8-10".

J-TuBe PigS In most cases J-tube pigs must be pulled through the J-tube instead of being pigged. TDW Offshore designs J-tube pigs that are specifically constructed to handle the multiple impact forces associated with this type of pigging application. PiPeline geOmeTry PigS The SmartGaugeTM system allows the gauging status of the pipeline to be communicated through the pipeline wall. This reduces the scope of subsea intervention during pipeline commissioning. The pig receiver and gauge pig no longer need to be recovered before hydrotest operations. high FricTiOn PigS FOr lOW PreSSure iSOlATiOnS High friction pigs are designed to isolate pipelines at low differential pressures. These pigs are equipped with TDW Offshore's electromagnetic communication system to assist positioning and monitoring of pressures during the isolation. Pig TrAcking The SmartTrackTM system is TDW Offshore's intelligent pipeline pig tracking system, available for all of our pigs. This system allows pigs to be tracked onshore and offshore in both shallow and deep water. Each pig can be tracked using its own unique ID, using our proprietary electromagnetic communication system.

24" standard batch pig.

12x16" dual diameter flooding pig.

16" pig to pass large pipeline dent.

www.tdwoffshore.com

ADsign reklamebyrå, Stavanger - 07-06-4000

TDW Offshore Services ­ Smart Pipeline SolutionsTM

TDW Offshore is the worldwide leader in tetherless, through-wall remote-controlled pipeline pressure isolation services. We minimise your pipeline downtime through fast-track delivery of project-specific pigging, repair and handling tools, both onshore and offshore. TDW Offshore has a large in-house engineering department, allowing TDW Offshore to meet customer needs. TDW Offshore is certified to ISO 9001:2000 Quality Management System. TDW Offshore Services is a subsidiary of T.D. Williamson, Inc. (TDW). TDW, the world's most recognized name in pipeline equipment and services, delivers safe integrity solutions for onshore and offshore applications. TDW's experts provide hot tapping and plugging, pipeline cleaning, geometry and MFL inspection, pigging and non-tethered plugging pig technology services for any pressurized pipeline system, anywhere in the world. TDW Offshore offers a broad range of products and services, such as:

· Pipeline Pressure isolations · Pipeline Pigging · Pipeline Flood Prevention · Pipeline construction · Pipeline repair

For sales information:

TDW Offshore Services

www.tdwoffshore.com

TDW Offshore Services AS Fabrikkveien 15, P.O.Box 8011 N-4068 Stavanger, Norway Phone: +47 51 44 32 40 Fax: +47 51 44 32 41 TDW Offshore Services, l.l.c. 4220 World Houston Parkway, Suite 100 Houston, TX 77032 ,USA Phone: +1 832 448 7200 Fax: +1 832 448 7240 T.D. Williamson Asia Pacific Pte Ltd 4 Tech Park Cescent, 3rd Floor Singapore 638128 Phone: +65 6364 8520 Fax: +65 6364 8521 TDW Offshore Services c/o GASOS P.O. Box 203, 13th Floor, Bin Homoodah Building, Sh. Khalifa Street Abu Dhabi, UAE Phone: +971 50 6155146

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