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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter May 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Offshore

Hercules Offshore Filing for Bankruptcy Again

Hercules Offshore Inc said it planned to file for prepackaged Chapter 11 bankruptcy, just six months after the rig contractor emerged from bankruptcy protection.

DONG Energy Listing to Value Group at up to $16 Bln

DONG Energy's has set a potential $16 billion price tag on its stock market debut, giving investors a chance to buy into the growth in offshore wind power, but

Østensjø Rederi Orders Another Wind Farm Vessel

Rolls-Royce has signed a contract with shipyard Astilleros Gondan in Spain to design and equip a second Service Operation Vessel for ship owner Østensjø Rederi.

Energy

GloMEEP Project Forges Ahead with Train-the-Trainer Workshop

A global Train-the-Trainer workshop on energy efficiency has been delivered in China (23-27 May), preparing the personnel needed to cascade knowledge on energy

Hercules Offshore Filing for Bankruptcy Again

Hercules Offshore Inc said it planned to file for prepackaged Chapter 11 bankruptcy, just six months after the rig contractor emerged from bankruptcy protection.

Strike Idles 38 Oil Tankers at Fos-Lavera

Some 38 oil tankers have been held up at the Fos-Lavera oil port in southern France, the country's biggest, including 25 at harbour, up from 12 the previous day,

LNG

NASSCO Lays Keel for Jones Act Tanker Liberty

U.S. shipbuilder General Dynamics NASSCO hosted a keel laying ceremony on Thursday, May 26 for the Liberty, one of three new ECO Class Jones Act tankers under a

Höegh LNG Turns to Profit in 1Q

Höegh LNG returned to profit following a Profit after tax of USD 6.3 million for the first quarter of 2016, up from USD 4.0 million net loss in the fourth quarter 2015.

World’s Biggest LNG Buyer Becomes Seller

EDF Trading, a wholly-owned subsidiary of French power giant EDF, has signed an LNG sales and purchase agreement with Japanese LNG aggregator Jera Co Inc, one

News

GloMEEP Project Forges Ahead with Train-the-Trainer Workshop

A global Train-the-Trainer workshop on energy efficiency has been delivered in China (23-27 May), preparing the personnel needed to cascade knowledge on energy

Diana Charters Out Two Bulkers

Diana Shipping Inc. today announced that, through a separate wholly-owned subsidiary, it entered into a time charter contract with Bunge S.A., Geneva, for one of its Panamax dry bulk vessels,

Long Beach Port Maintains Strong Bond Rating

Fitch Ratings, one of the top three U.S. credit analysis agencies, has affirmed the Port of Long Beach’s “AA” rating on its outstanding debt. Fitch stated the AA rating — its highest for U.

Marine Equipment

GloMEEP Project Forges Ahead with Train-the-Trainer Workshop

A global Train-the-Trainer workshop on energy efficiency has been delivered in China (23-27 May), preparing the personnel needed to cascade knowledge on energy

Diana Charters Out Two Bulkers

Diana Shipping Inc. today announced that, through a separate wholly-owned subsidiary, it entered into a time charter contract with Bunge S.A., Geneva, for one of its Panamax dry bulk vessels,

Hansa Offenburg, Hansa Drakenburg Sail Scale-free

Leonhardt & Blumberg was founded in 1903 and has managed more than 180 vessels, the majority of which were general cargo vessels and bulk carriers. Today the company

Vessels

Hansa Offenburg, Hansa Drakenburg Sail Scale-free

Leonhardt & Blumberg was founded in 1903 and has managed more than 180 vessels, the majority of which were general cargo vessels and bulk carriers. Today the company

NASSCO Lays Keel for Jones Act Tanker Liberty

U.S. shipbuilder General Dynamics NASSCO hosted a keel laying ceremony on Thursday, May 26 for the Liberty, one of three new ECO Class Jones Act tankers under a

SAFE Boats Delivers First CIV for Air and Marine Operations

SAFE Boats International (SBI), a manufacturer of aluminum boats located in Bremerton, Wash., has completed the first Coastal Interceptor Vessel (CIV) on contract from U.

Consulting

Long Beach Port Maintains Strong Bond Rating

Fitch Ratings, one of the top three U.S. credit analysis agencies, has affirmed the Port of Long Beach’s “AA” rating on its outstanding debt. Fitch stated the AA rating — its highest for U.

OOCL Renews VOD Training Contract

Videotel, producer and distributor of training videos, 3D animation, and e-Learning courses to the maritime market and part of KVH Industries, Inc., (Nasdaq: KVHI),

IMO to Prevent Cyber-attacks

At a meeting of the IMO's Maritime Safety Committee (MSC), it was recognised that ships may also be exposed to so-called cyber-attacks. Now, the IMO wants to

 
 
Maritime Security Maritime Standards Naval Architecture Offshore Oil Pipelines Port Authority Ship Electronics Ship Repair Ship Simulators Sonar
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: 0.1343 sec (7 req/sec)