TDW completes pipeline pressure isolation offshore Malaysia

Offshore staff

STAVANGER, Norway – TDW Offshore Services (TDW) has completed a pipeline pressure isolation operation for Talisman Malaysia Ltd. The operation was carried out on a 24-in. pipeline extending between two platforms located off the coast of Peninsular Malaysia.

TDW used the SmartPlug pressure isolation tool to replace a shutdown valve (SDV) on a key section of a gas export pipeline without having to bleed down the line. To execute the double-block pressure isolation, the SmartPlug tool was launched and pigged with nitrogen for about 20 m (66 ft) past the valve and into the riser, and then set the tool vertically in the riser. The SmartTrack system was used to track the tool as it traveled along the pigging route, and to monitor pressure throughout the entire operation.  

For 11 days, the SmartPlug tool remained in the line, creating a double-block isolation. Pipeline pressure was maintained at 90 bar (1,305 psi) while Talisman replaced the valve. After the valve was replaced, TDW set the third module of the SmartPlug tool so that a test on the new valve against an operating pressure of 99 bar (1,436 psi) could be performed. The SmartPlug tool was then unset and pigged back using gas pressure from the pipeline. 

From mobilization to demobilization, the entire operation was completed in 16 days. The pressure isolation operation was carried out by TDW personnel based in Stavanger, Norway, and Singapore, and an independent engineering agent of TDW in Malaysia. 

7/13/2012

TDW Offshore Services pipeline intervention

Related Articles

2H Offshore to deliver lightweight conductor-supported platform

Dec 17, 2014 2H Offshore, an Acteon company, will deliver a lightweight conductor-supported platform for EQ Petroleum Developments Malaysia Sdn Bhd for installation in the Tanjong Baram field, offshore Malaysia.

QIC extends international expansion with new base in Malaysia

Dec 17, 2014

QIC Inc. has established new offices in Kuala Lampur and Labuan, Malaysia, to further serve customers in the Asia/Pacific region.

MultiClient Geophysical awards Nordic Maritime 2D seismic survey

Dec 17, 2014

Nordic Maritime Pte. Ltd. has won a contract to provide 2D seismic survey work offshore Indonesia by MultiClient Geophysical (Pte) Ltd.

Aqualis Offshore signs MSA with Atwood Oceanics

Dec 16, 2014

Aqualis Offshore has signed a master service agreement with offshore driller Atwood Oceanics.

ONGC makes oil and gas discoveries offshore India

Dec 15, 2014

ONGC has made new offshore oil and gas discoveries – one in the deepwater KG basin off the east coast of India, and the second in the Mumbai offshore basin off the west coast.

Trending News

Development planning progresses at Gazelle offshore Côte d’Ivoire

Jan 30, 2015

Azonto Petroleum says the Côte d’Ivoire government has approved a revised development plan for the shallow-water Gazelle field.

Norway issues permits for Vega transfer, Barents Sea well

Jan 30, 2015

Petroleum Safety Authority Norway has sanctioned Wintershall Norge’s use of the subsea production facilities on the Vega field in the Norwegian Sea.

Total prolongs contract for accommodation vessel offshore West Africa

Jan 30, 2015

Exmar says Total has signed an extension of its contract for the accommodation barge OTTO 5 until mid-2017.

Price squeeze will impact deepwater Africa ambitions, analyst claims

Jan 30, 2015

Wood Mackenzie predicts a 30% reduction in spending on exploration and appraisal offshore Africa this year.

EMGS secures Barents Sea 3D data deal

Jan 30, 2015

Electromagnetic Geoservices (EMGS) has a data licensing agreement with an unnamed oil company to supply 3D EM data for Norway’s 23rd licensing round in the Barents Sea.

  Offshore
Digital Magazine
Look Inside
Cover
Current Issue

Oil & Gas Jobs

Search More Job Listings >>