Australian Pipeline Industry Association

TAP project : external damage resistance of X100 pipes for long distance high pressure pipelines [presentation] / G. Mannucci, G. Demofonti, A. Lucci [and] C. M. Spinelli

Library — Tue, 13 Jul 2010 22:59:43 +0000

“It is nowadays well established that very high onshore pressure transportation (about 15 MPa) makes the gas to pipeline option for large volumes of gas (>15·109 Sm3 per year) more competitive, over long distances, than the traditional ones, as well as the adoption of high grade steels (i.e. X100 API equivalent or higher). In this context Eni Group has started a research project, called TAP (High Pressure Transportation) aimed to demonstrate the economic viability, the technology reliability and the real possibility to build very high pressure pipeline with this new class of structural steel and the applicability of existing international Standards.
Other majors gas companies had been active recently to understand pipe steel availability, by involving best worldwide steel makers, and to check basic pipe steel (strength, toughness, weldability) characteristics. However a lot of open questions are still under discussion, mainly concerning pipeline structural integrity on long term life span: specific goal of the TAP project is to fill this gap by an integrate laboratory and full scale experimental testing program.
So, a pilot section of X100 pipeline is being built within the CSM full scale testing facilities in Perdasdefogu, Sardinia (Italy). The pilot section will be made using X100, 48” (1220mm) outer diameter pipes with two different wall thickness levels: 16,6mm and 18,4mm. Pipes have been provided by different pipe makers with different coating types (high density polyethylene and fusion bounded epoxy). The pilot section will be about 800 meters long, split into two main sections. The first section (named line “A”) will be used to study specific construction field issues as cold and hot bend, application of different joints coating types, different welding techniques; in addition part of this section will be afterwards used for performing a full scale fracture propagation burst test, and for this reason two crack arrestors will be inserted inside the line in case the selected pipes would be not able to arrest the running fracture. The second section (named line “B”) will be dedicated to study the Environmental Assisted Cracking (EAC) influence on long term structural resistance of damaged pipes; particular effort will be spent in investigating how the environmental action coupled with the typical internal pressure fluctuation can affect the long term resistance of a third part damaged pipe. Key factor is to realistically reproduce a damage that an excavator would cause on the buried pipe: to do that the CSM ad-hoc designed test aggression rig facility, named Simulator, has been extensively used to realize on a number of X100, 48” OD coated pipes realistic dent and gouge damages representative of an aggression of a large tons excavator.
After the X100 pilot section will be completed, it will be operated for about two years with the aim to reproduce the typical operative conditions of a possible future X100 long distance gas pipeline. The two lines will be fully instrumented and monitored and, once this simulating operative period will be completed, full scale fracture tests, both in terms of crack initiation and propagation, will be carried out in order to investigate the behaviour of the selected pipes with respect to such fracture issues.
The present paper explains all the major technical aspects of the TAP project with a special focus on the third part damage issues also in relation with EAC phenomena.” — Paper

test post from David

admin — Wed, 17 Mar 2010 10:58:18 +0000

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test post from David

admin — Wed, 17 Mar 2010 06:43:23 +0000

This is a test

Testing to see if Insurance appears as a metadata category 3 on Copy to new draft deleting metadata categories , then adding Research as a category

Library — Wed, 17 Mar 2010 03:21:53 +0000

After updating; loading a file to the posting and updating ; and limiting the readership to APIA RSC Insurance metadata category has popped into the record

Testing to see if Insurance appears as a metadata category 2 on Copy to new draft

Library — Wed, 17 Mar 2010 03:20:10 +0000

Testing to see if Insurance appears as a metadata category 1 on Add new posting

Library — Wed, 17 Mar 2010 03:18:44 +0000

Possibilities for aboveground pipelines [paper] / Peter Tuft [and] Russell Schulz

Library — Wed, 24 Feb 2010 03:57:55 +0000

“Installing gas pipelines aboveground may have a number of benefits depending on the circumstances of individual projects – for example to:

Reduce capital cost
Facilitate development of stranded reserves (which might otherwise be uneconomic)
Reduce environmental impact (reduced ground disturbance and right-of-way width)
Facilitate pipeline abandonment for fields of short life, including pipe reclamation and reuse.”

admin — Sun, 14 Feb 2010 22:20:09 +0000

Welcoming address [to the APIA convention, Royal Pines Resort, Queensland, 27-30 October 2001] / Mike Lauer

Library — Wed, 27 Jan 2010 01:09:58 +0000

Lauer outlines the pipeline industry operating environment and the role of the Australian Pipeline Industry Association APIA). Lauer also reports on APIA strategic and buisness planning for developments to the industry, in particular, the regulatory regime.

The future of gas transportation on the East Australian gas grid [presentation] / Rob Wheals

Library — Tue, 20 Oct 2009 23:15:59 +0000

Wheals provides an overview of APA Group operations; the development of the East Australian gas grid; statistics of demand and business activities; the role of climate driven legislative changes, and the future expected growth of the grid.