STATS Group Complete Dutch Sector North Sea Isolation Project

Press Release
Thursday, December 13, 2012
Tecno Plug isolates gas export pipeline.

Pipeline engineering specialist, STATS Group, has completed an isolation project on a 16” subsea pipeline in the Dutch sector of the North Sea on behalf of Wintershall Noordzee BV.


The isolation enabled the client to disconnect a flexible gas export pipeline so it could be replaced with a new rigid gas export pipeline. STATS deployed its Tecno Plug  tool for the isolation which prevented a costly depressurisation of the main trunk line, and reduced environmental impact, costs and production losses.

 

A four module 16” Remote Tecno Plug  was pigged by STATS personnel from the K5-A platform to the subsea isolation position 300 metres from the platform. The Tecno Plug  was tracked and its location confirmed using STATS through-wall communication system via an extremely low frequency. This was carried out by a second team of STATS technicians on-board the EDT Protea dive support vessel.


When set, the Tecno Plug  isolated a pressure of 70 bar. On completion, primary and secondary seal tests were carried out using full isolation pressure. The pressure between the primary and secondary seals was monitored throughout the isolation, ensuring safety critical double block isolation. With the fully proven double block pipeline isolation in place, the section of flexible riser was safely removed, allowing a new subsea valve to be added to the pipeline behind the isolating Tecno Plug.


Divers then attached a temporary subsea receiver to the valve which allowed the Tecno Plug  to be remotely unset and reverse pigged into the receiver. The subsea valve was then closed and tested before the temporary receiver was removed and retrieved to the Protea DVS, complete with the Tecno Plug™. The new subsea valve then provided isolation while the permanent pipeline was successfully tied-in and re-commissioned.


The project faced many challenges - the Tecno Plug  had to allow bi-directional pigging through various 5D bends and accommodate the layered helical winding present on the internal surface of a flexible pipeline. All these factors were considered when designing and engineering the Tecno Plug.


STATS Group’s subsea business stream manager, Dale Millward, said: “This fast-track project was engineered, risk assessed, assembled and mobilised within a six week window. The successful delivery demonstrates STATS’ ability to provide safety critical isolation services that enabled urgent maintenance activity to be completed, within schedule and with minimal production outage.” 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

News

GasLog Orders Two LNG Carriers

GasLog Ltd. today announced that it has ordered two new 174,000 cubic meter LNG carriers from Hyundai Heavy Industries Co., Ltd. ("Hyundai") in South Korea.

Injured Woman Rescued on Lake Washington

Coast Guard, Seattle Police Department, Seattle Fire Department, King County Sheriff’s Office and Washington Department of Fish and Wildlife personnel rescued

Jonathan Appointed LOC Group's London MD

In line with LOC’s continual global growth and strengthening of the senior management team,  Britain has been appointed as Managing Director of the London operation.

Marine Equipment

VARD SeaQ Bridge gets Lilaas touch

‘Finger-grip’ vessel control offering precise tactile feedback may seem radical for those accustomed to conventional levers, but the combination is proving a

Ondimar Firms Order Suezmax Quartet at Navantia

Navantia and Maritime Transport Ondimar LDA (shipping company Ibaizabal Group) today ratified the contracts signed in late June and the financial structure for

Strategic Marine’s Stock Program Full Power Ahead

Strategic Marine, the specialist shipbuilder and fabricator, has confirmed its stock program of personnel transport vessels is market-ready. “Our stock program

Vessels

Ondimar Firms Order Suezmax Quartet at Navantia

Navantia and Maritime Transport Ondimar LDA (shipping company Ibaizabal Group) today ratified the contracts signed in late June and the financial structure for

Boxships Collide in Port Klang, Malaysia

The container ships MOL Empire and Northern Democrat collided at around 1430 LT Aug 1 in Westport harbor at Port Klang, Malaysia, reportedly while mooring.   Container or containers fell overboard,

NMDC Breaks Several Records on New Suez Canal Project

UAE dredging and marine construction firm National Marine Dredging Company (NMDC) has announced the completion of the New Suez Canal project.   The $8bn (£5bn)

Consulting

Jonathan Appointed LOC Group's London MD

In line with LOC’s continual global growth and strengthening of the senior management team,  Britain has been appointed as Managing Director of the London operation.

Ross is Fleet Manager, Heidmar

Heidmar announced the promotion of Duncan Ross to Fleet Manager. Duncan joined Heidmar’s London office in 2012 as vessel manager.  Prior to joining Heidmar,

Rolls-Royce Takes Davies on Board

Rolls-Royce appointed Alan Davies as a Non-Executive Director. He will join the Board with effect from November 1, 2015 and will become a member of the Nominations and Governance Committee,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Offshore Oil Pipelines Pod Propulsion Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.3099 sec (3 req/sec)