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

L&T to manage Vasai East expansion offshore India

Dec 30, 2014

ONGC has contracted L&T Hydrocarbon Engineering for additional development services for the Vasai East project.

Reliance consortium set to withdraw from India block

Dec 29, 2014

Hardy Oil and Gas (LSE: HDY) has consented to Reliance Industries’ plan to relinquish the KG-DWN-2003/1 (D3) exploration license offshore eastern India.

Indonesia sanctions Lengo gas project offshore Java

Dec 29, 2014

Indonesia’s government has approved KrisEnergy’s development plan for the Lengo gasfield in the Bulu production sharing contract (PSC) offshore East Java.

Orwell, FES to provide external turret system for FPSO offshore Sarawak

Dec 23, 2014

TH Heavy Engineering Berhad has contracted Orwell Offshore and FES International to supply of an external turret system for the FPSO Layang.

‘Largest’ new gantry crane launches Nordic Trym vessel

Dec 19, 2014 The new shipyard facility of Honghua Offshore Oil & Gas Equipment Co. in Jiangsu, China, has launched its first ship, an IMT982 platform supply vessel named Nordic Trym. The vessel was lau...

Trending News

BP has agreement in principle to settle governmental Macondo claims

Jul 2, 2015

BP has an agreement in principle to settle all federal and state claims arising from the Macondo oil spill in the Gulf of Mexico. 

Norwegian government realigns Johan Sverdrup field interests

Jul 2, 2015

The Norwegian Ministry of Petroleum and Energy has determined the various ownership interests in the Johan Sverdrup field in the central Norwegian North Sea.

South Pars Phase 1 platform capacity upgrade completed

Jul 2, 2015

Production capacity of Platform SPD1 serving Phase 1 of the South Pars gas field in the Persian Gulf has reached 1 bcm/d (35 bcf/d).

Noreco settles offshore Denmark liabilities

Jul 2, 2015

Norwegian Energy Co. (Noreco) has reached agreement with its joint venture partners in the Danish North Sea on its forfeited licenses and related abandonment liabilities.

COSCO Qidong extends delivery of semisubmersible accommodation rig to Axis Offshore

Jul 2, 2015

COSCO Qidong Offshore Co. Ltd. has agreed to extend the delivery of a harsh environment semisubmersible accommodation rig to Axis Offshore. 

  Offshore
Digital Magazine
Look Inside
Cover
Current Issue

Oil & Gas Jobs

Search More Job Listings >>