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The SmartPlug tool is a remotely operated, bi-directionally piggable, double-block isolation tool that

allows isolation of pipeline sections at full operating pressure, eliminating the need to bleed down the

pipeline. Modication and maintenance work on the pipeline can therefore be carried out with minimum

disruption of operations. Different congurations of the tool are possible such that it can be custom

engineered to meet project specications. The externally localized SmartTracksystem is used to control

the SmartPlug tool and communicate with it.

Tool Performance Specifications

SmartPlugIsolation Tool (8 in to 48 in)

FEATURES

In its basic conguration, the SmartPlug tool consists of

the following:

- one or more plugging modules

- a control module (CM) that contains the

communication, pressure monitoring, and tracking systems

together with the battery pack and hydraulic system

- a monitoring and tracking module (MTM) that

contains a backup pressure monitoring and tracking system

together with a battery pack.

Tool conguration varies from job to job, depending on the

size and intended application. Hydrotesting is possible using a

specically designed tool.

The different modules of the tool are connected by ball joints,

and the tool is therefore both exible and highly piggable.

The pigging disks are designed according to project

specications to provide sufcient drive for pigging the tool.

The tool has a hard OD typically 6%10% smaller than the

pipe ID, enabling smaller restrictions to be handled. For certain

applications, it may be possible to design a tool with an even

smaller hard OD (ca. 15% smaller than the pipe ID).

The SmartPlug system provides fail-safe locking of the isolation

plug modules because these are secured by the differential

pressure introduced across each plug module. Typically, a

plug module is unset by returning the isolated section to operating

pressure. The unsetting springs then unset the plug with or without

assistance from the hydraulic system.

Each tool has a fail-safe unsetting system. If all communication fails,

the tool can still be unset and recovered. The passive safety release

system is activated by increasing the pipeline pressure, typically on

the low pressure side, to a predetermined pressure.

The SmartPlug tool provides fully redundant double-block isolation,

i.e., the plug barriers are designed to ensure that even if one plug

module fails, both barriers are not lost.

Each plug module is individually pressure tested at a pressure that

is at least 1.43 times the operating pressure. The entire SmartPlugsystem is type approved by Det Norske Veritas (DNV), and each

tool undergoes a project-specic Factory Acceptance Test (FAT)

witnessed by DNV.

APPLICATIONS

These include but are not limited to the following:

Riser valve repair and hydrotest Replacement of shutdown valves,

traps, and trap valves Riser replacement or repair Platform bypass

New platform tie-in Midline repair of damaged pipeline

Installation of midline valves Asset protection during heavy lifts,

construction work, etc.

Schematic representation of an isolation setup

TDW Offshore Services AS/ Stavanger, Norway/ Phone: +47 51443240/ Fax: +47 51443241/ www.tdwoffshore.com

Data subject to change without notice / Registered trademark of T.D. Williamson, Inc. / Trademark of T.D. Williamson, Inc.

Copyright 2012. All rights reserved TDW Offshore Services AS

SmartPlugtool in its transportation frame with

the SmartTracktransceiver placed alongside

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Tool Performance Specifications

SmartPlugIsolation Tool (8 in to 48 in)

OPERATING SPECIFICATIONS

SmartPlugtool sizes currently available 8 in to 48 inCompatible pipeline materials X52-X70 or equivalent; tools for stainless steel pipes on request

Operating temperatures Min. +4C (39F)

Max. +50C (122F)

Pigging medium H2O, N

2, production gas, MEG, air, condensate

Piggability 3D bends (depending on conguration)

Max. continuous pigging speed through bends / valves Recommended 0.1 m/s (0.33 ft/s)

Max. continuous pigging speed through a straight pipe Recommended 3 m/s (9.84 ft/s)

Typical isolation pressure ranges Min. 0-10 bar (0-145 psi)

(Note:0 bar based on a hydraulically locked SmartPlug tool)

Max. 250 bar (3626 psi)

Hydrotest pressure range Min. 0 barMax. ca. 250 bar (3626 psi)

(Note:special congurations allow even higher values)

Typical initial differential pressure for pigging the SmartPlugtool 12 bar (14.5 psi29 psi)

Typical differential pressure for pigging the SmartPlugtool 0.31 bar (4.35 psi14.5 psi)

Max. positioning accuracy of the SmartPlugtool using the SmartTrack

system (coated and concrete weight coated pipe)

0.050.2 m (0.16 ft0.66 ft)

Max. positioning accuracy of the SmartPlugtool using the SmartTrack

system (buried pipe)

Depending on burial depth 0.51.0 m (1.64 ft3.28 ft)

Battery life limits of the CM and MTM Calculated based on project requirements (typically 2 to 18 months)

COMPLETE TOOL SYSTEM INCLUDING BALL JOINTS

Size (inches) Dimensions L D (mm) Weight (kg)

8 3800 180 260

10 2700 226 240

12 2700 266 340

14 2700 308 410

16 2700 335 530

18 3400 390 680

20 3400 438 900

22 5200 485 1850

24 4500 515 2020

26 4500 578 2200

28 4600 625 2550

30 4650 678 3120

32 4600 724 3040

34 4700 794 4410

36 5140 810 5020

38 5400 860 6680

40 5400 925 7180

42 5950 960 8210

48 7250 1080 15460

Typical 20-in plug module

Indicative dimensions and weights ofa typical SmartPlugtool with 2 plug

modules and 2 pigging modules

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