Stay Connected

STATS isolates North Sea ETAP pipeline valve

Offshore staff

ABERDEEN, UK – STATS Group has isolated a 24-in. oil export line on BP’s Marnock ETAP spur line located in the UK central North Sea, to allow replacement of a 16-in. valve.

A 24-in. remote tecno plug was deployed to isolate a pressure of 60 bar (870 psi) in order to ensure safe conditions for the replacement. Once set, primary and secondary seal tests followed using full isolation pressure.

Pressure between the primary and secondary seals was monitored throughout the isolation, ensuring safe double-block isolation. Next STATS installed a 24-in. extended body in-line weld test tool through the launcher to straddle the 16-in. tee. This tool was then set to perform reinstatement and leak testing of the 16-in. branch and valve.

STATS mobilized and completed the work scope in seven weeks, including a factory acceptance test in a purpose-built test rig.

3/25/2013

Related Articles

Partners BOURBON and CGG launch seismic support vessels

Nov 21, 2013 In 2011, BOURBON entered a five-year charter agreement with CGG for a series of six new seismic support vessels. Two years later, the Bourbon Petrel and the Bourbon Fulmar are now in service.

Safe Caledonia awarded contract at ETAP

Nov 21, 2013 Prosafe has signed a contract with BP Exploration Operating Co. Ltd. for the Safe Caledonia to provide accommodation support at the Eastern Trough Area Project in the UK sector of the North Sea.

Trending News

Offshore Photo of the Day

UK offshore confidence takes a hit, survey suggests

Oct 31, 2014

Oil & Gas UK’s latest Business Sentiment Index suggests growing concerns over rising UK North Sea costs, reduced drilling activity and the falling oil price.

Domestic issues delay closure of offshore Tunisia farm-out

Oct 31, 2014

PA Resources (PAR) says it remains in discussions with the Tunisian government about a proposed offshore farm-out to EnQuest.

More South Pars platforms near start-up offshore Iran

Oct 31, 2014

Gas injected into Iran’s national grid is set to increase as two new platforms come onstream this winter at the South Pars Phase 12 development in the Persian Gulf.

BMT to monitor Egina risers offshore Nigeria

Oct 31, 2014

Saipem has contracted BMT Scientific Marine Services to supply the riser integrity monitoring systems for Total’s deepwater Egina development, 150 km (93 mi) offshore Nigeria. 

  Offshore
Digital Magazine
Look Inside
Cover
Current Issue

Oil & Gas Jobs

View more Job Listings >>