SA Mines and Energy Journal : October - November 2013
OCTOBER/NOVEMBER 2013 SA MINES & ENERGY JOURNAL INNOVATION 26 Santos is trialling an innovative way of laying pipes in the Cooper Basin in a quest to speed up gas delivery and reduce the cost of key infrastructure. The Spoolable Composite Pipe Project is a technological breakthrough that will accelerate gas flowline installation, with potential for reducing both the critical path and cost for gas capacity build. "The objective of the project is to reduce overall project lead time and establish lower lifecycle costs for our gas assets, using composite pipe as an alternative to using conventional steel, " says Randall Harvey, Manager, Construction Ser vices & Flowlines for Santos' Eastern Australia Business Unit (EABU). "This technology may allow the connection of previously uneconomic gas to market from the Cooper Basin. " A key element of the project scope is to develop a standardised delivery model and execution strategy for the long term, safe, effective and efficient implementation of spoolable pipe for Santos' EABU gas business. Santos are progressing a rapid pilot program to prove the application in high pressure gas service. A similar application has already been delivered for the Cook Pipeline in the oil business, providing a model for the gas business application. The company is trialling both spoolable composite pipe (SCP) and reinforced thermoplastic pipe (RTP) as part of the pilot program. The pipes are constructed with an inner and outer thermoplastic layer for fluid containment and pipe protection respectively. The strength required for pressure containment is supplied by wound filaments between the inner and outer layer. The filaments can be glass fibre, synthetic, such as aramid or polyester based, or steel in the form of strip or wire. The pipe is supplied coiled, usually on drums which allow lengths of up to a kilometre to be provided. "The primary purpose of the overall Gas SCP Pipeline project will be to prove, implement and establish a working model for the use of SCP or Spoolable Reinforced Plastic (SRP) pipe in the Cooper Basin, " Mr Har vey says. "The main project objectives are to select and trial SCP pipe to establish sustainable lowest lifecycle costs for SCP pipe products and installation vendors; and to develop guidelines for use of SCP products for gas pipelines and handover of a standard working model for use with flowlines within EABU. " Santos has identified that the use of SCP or SRP products may deliver a paradigm shift in lead time and total lifecycle cost for pipeline installation in the EABU Gas Business. Once a proven and a standardised model has been established, the base business will take up the new technology into its suite of tools. Colm Walsh is the Senior Project Engineer for major projects at Santos. Pipe dream Ploughing of FlexPipe and fibre optic cable simultaneously. An innovative way of laying pipes will help reduce the cost of key infrastructure, as Colm Walsh reports.
August - September 2013
December - January 2013-14