Ann: Walyering Reaches Payback & Operational Update, page-262

IW, this is an important issue IMO. If it is to you also, let's keep it civil. The destination is important, not the journey.

I will start with your earlier quote.



You have taken this quote from AEMC, not an authoritative source IMO, therefore I view it with a degree of skepticism.

Here is the real deal from APA. IMO.

HOW MGSF WORKS

The Dampier to Bunbury Natural Gas Pipeline (DBNGP) and APA’s Parmelia Gas Pipeline (PGP) which are connected to MGSF flow in a north to south direction. Gas supply for the storage facility can only be injected from the DBNGP, however gas withdrawn from the MGSF can be sent south to Perth using either the DBNGP or PGP depending on the customer’s preference/transport arrangement.

To inject gas into the underground reservoir, the gas must be raised to a higher pressure than the reservoir pressure. This is done using the compressors that deliver the compressed gas via injection pipelines through to any of the three high pressure wellheads (A, B, C) for injection into the reservoir. Gas can be injected up to rates of 70 TJ/day (2.92 TJ/hour).

Gas can be repeatedly injected and withdrawn from the storage facility and can also stay in the storage reservoir indefinitely without leakage or deterioration in quality.

Gas can be withdrawn either by free flow or using the compressors at rates up to 150 TJ/day (6.25 TJ/ hour). The gas goes through a series of processing and conditioning procedures to ensure it meets pipeline specifications before being delivered into either the DBNGP or PGP for transport south to Perth.

Also, from the half year report.


Note the output constraint.

However, the bold section of your following statement is at odds with my understanding of the system capabilities and operation.

However, before you set off on your journey, you should take note that the DBNGP runs parallel to the PGP for all of the latter's length. The DBNGP has a Firm Full Haul Capacity more than ten times greater, somewhere around 800 Tj per day, though it usually achieves over 1,000 Tj per day. It is at least a possibility that in the short term 'we' could pick up a tiny fraction of that massive throughput to achieve 'our' processor's nameplate capacity and run it south using the spare capacity in the PGP.


If you want to discuss further the statements which we have made to get to the truth of the matter, good, lets continue. If not, well so be it. J L.