good quality DBP-Dampier Bunbury Pipeline

  • good quality DBP-Dampier Bunbury Pipeline
  • good quality DBP-Dampier Bunbury Pipeline
  • good quality DBP-Dampier Bunbury Pipeline
  • Who owns the Dampier to Bunbury Natural Gas Pipeline?
  • The Dampier to Bunbury Natural Gas Pipeline (DBNGP) is a transmission pipeline owned and operated by Dampier Bunbury Pipeline (DBP). DBP is part of the portfolio of companies that form Australian Gas Infrastructure Group (AGIG). AGIG is owned by various consortia of Hong Kong-based entities listed on the Hong Kong Stock Exchange.
  • Who uses the DBNGP pipeline?
  • The majority of the natural gas transported by the pipeline is consumed by major industrial users in the mining and minerals processing industries, but it also supplies gas to power generators and gas retailers. The DBNGP was constructed in stages between 1982 and 1985 by the State Energy Commission (SECWA).
  • Should DBP adopt a pipeline design based on a gas composition?
  • Kimber Consultants recommends that DBP should adopt a pipeline design that is based on a gas composition implied in the Recommended Design Gas Composition as shown in Table 4, which has a combination of the lowest expected heating value, a low Wobbe index, no LPG and modest levels of inerts.
  • What happens if DBP chooses a high quality gas specification/composition?
  • Conversely, if DBP chooses a high quality gas specification/composition and lower quality gas is shipped, then the pipeline’s increased capacity will be “under-designed” and DBP will not have the pipeline capacity to sell as a firm service and will incur penalties; and the incremental tariffs will not result in cost recovery – a double loss.
  • Who owns the DBNGP?
  • In 2004 it was purchased by DBP. During DBP’s ownership, $1.7bn has been invested into the DBNGP in meeting the energy needs of Western Australia, via separate expansion projects, Stages 4, 5A and 5B. As a result of these projects the pipeline capacity was increased by 60% with the pipeline now being 83% duplicated or “looped”.
  • What is the average gas quality in a DBNGP?
  • Paradoxically, the results indicate that average gas quality will remain quite high and that there is a relatively low probability of receiving gas into the DBNGP with a heating value of around 37 – 38 MJ/m3, or with up to 7% inerts, except perhaps during some short term plant or field upset.

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