VIDEO: O-lay Pipeline Installation Method Presented

VIDEO O-lay Pipeline Installation Method Presented

O-lay is a state-of-the-art disruptive method to install offshore pipeline in a safe way and with a minimum of costs.

The method has following stages: Welding and construction onshore, pulling the pipe in the water supported by floatation devices, spiraling the pipe in a flat mono-layer spiral on the surface of the water while the steel remains in its elastic area (this is the “O” in O-lay) , transportation of the spiral towards the location where it has to be laid. Finally the pipe is laid to the bottom with the help of a simple but specially designed lay barge.

The laying is done with a type of S-lay where the pipe will leave the barge at an end position or through the center of the barge which will give the barge a better stability and a better floating support.This means that the pipe can be laid deeper with a lighter barge.

When the spiral is made the method makes use of special bending method whereby at certain intervals “points of inflection” are applied. These points are actual end points of anchor lines in the outer circumference of the ‘spiral to be made’. The method can also be used to retrieve pipe from the sea bottom. Instead of the anchor lines, the method makes use of small but powerful boats which are then attached to the pipeline for creating the perfect circle. All boats are attached to a dynamic positioning system that will “coordinate” the whole operation.

With this method pipes can be laid in very shallow water (some meters of depth whereby a special pontoon will be used) and very deep water (several thousands of meters with the aid of a lay barge)

Due to the fact that almost all work is prepared onshore (including welding and inspecting the pipe) the pipe can be installed at a speed of 25 km per day.

Subsea World News Staff, April 9, 2013; Image: o-lay.net

Share this article

Follow Subsea World News

Events>

<< Feb 2016 >>
MTWTFSS
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 1 2 3 4 5 6

FPSO Europe Congress

 

Pursuing Cost-Optimization & Project Excellence across Europe’s FPSO Value Chain!

Launched to great success in 2015, the FPSO Europe Congress is set to return on 24-25 February 2016 in London for yet another exciting gathering of Europe’s leading oil operators, FPSO contractors, EPCs, shipyards and solution providers to discuss the most topical and critical FPSO developments in the North Sea, Latin America, Brazil and West Africa market.

 

Why Attend the 2nd Annual FPSO Europe Congress?

  • Discover how FPSO leaders are embracing the new realities of a low oil price environment – what are the strategies to adopt in pursuit of viable economical FPSO projects?
  • Brainstorm with industry experts on innovative FPSO engineering, construction and technology breakthroughs leading to significant CAPEX and OPEX savings
  • Review, refine and optimize your existing FPSO operations – how can we enhance oil recovery and extend FPSO asset lifetime?
  • Learn from FPSO experts on the ins-and-outs of delivering successful FSPO projects in North Sea, West Africa, Latin America and Brazil – how can we comply with local content and form effective native partnerships?
  • Engage and form sustainable partnerships with European-based oil companies and FPSO contractors that are leading offshore E&P and FPSO projects in the region

 

2016 FPSO Distinguished Speakers Include:

  • Curtis Lohr, Stones Project Manager, Shell
  • David Hartell, Senior Development Manager, Premier Oil
  • Terry Hughes, Project Director, Tullow Oil
  • Sid Sircar, Facilities Delivery Manager – Catcher Development, Premier Oil
  • Michael Wyllie, Group Technology Director, SBM Offshore
  • Chris Brett, President, Teekay Offshore
  • Puneet Sharma, Vice President, MODEC
  • Eirik Barclay, CEO, Yinson Production

 

The FPSO Europe Congress 2016 is proud to bring you an updated program offering fresh perspectives, creative solutions and critical market intelligence fundamental to FPSO business sustainability as we discuss just HOW and WHAT you can do in pursuit of a viable, efficient and safe FPSO strategy.

For more information please visit the website at http://goo.gl/uvYsrk or email rani.kuppusamy@fpsonetwork.com

 

read more >

Topsides Platforms & Hulls

Topsides, Platforms & Hulls Conference & Exhibition is the offshore industry’s only event dedicated to the topsides, platforms and hulls…

read more >

The 16th North Sea Decommissioning Conference

The 2016-programme has been composed to shed light on the effect of the current low oil-price environment on the decommissioning market…

read more >

Substructures for UK Offshore Wind

Design, construction and installation

Optimising offshore substructures is one of the key challenges for reducing LCOE. Foundation designers have produced a variety of different solutions: monopiles, GBS, jackets, suction buckets and floating foundations. Looking at U.K. projects – different soils, water depths,fabrication timelines and installation challengescreate many questions for the industry to solve. We’re entering uncharted territory; projects arelarger, farther and more complex than ever completed.

Now is the time to have a close look at lessons learnt and define the room for improvement for the U.K. wind industry.

More Info

read more >