Friday, 3 May 2013

For the CSG opposition

You do realize that…

Dairy cattle produce around 450 L of methane per day [1]. In a standard farm, the quantities of methane, the main CSG gas at issue. A darling downs dairy farm can have up to 10,000 cattle. For the most part, smaller farms have 500-1,000 head. A standard is generally keep 2 livestock units/ ha (conservative with some managing 2.5 lu/ha).

We will look at a 1,000 head. In a standard operation, there is a concentrated 450,000L of methane produced in dairy farming a day. This is concentrated at the milking shed.

There is generally fewer than one well for each of several farms of this size. For this exercise, we will just review the single one with a well against that farm. This is the worst case scenario and hence the one most likely to be used in argument.

Taking the high values (which are uneconomical, unsustainable and not supported) of leakage, we have a figure in the order of 75,000L/Yr loss from a well based on standard figures of production rates. Although this figure is high and could be termed a cause for alarm by those opposing CSG, it is in itself on the high estimate of reality in a situation where a complete loss of pipe integrity occurs.

Extrapolated, the CSG production accounts for 0.046% of the methane produced in a 1,000 head dairy farm.

So, if CSG gas is an issue from gas leakage, then we have to remember that cows actually do more damage and are less safe. In fact, the cattle are resulting in 21.93 times more release of the so called toxic substances.

The simple answer is property rights. Yes, some people are silly and will stop you using the land. Others who are not so risk adverse (and foolish) will take the money and allow mining.

The answer, property rights should be supported and we all win.

[1] http://www.ncbi.nlm.nih.gov/pubmed/8567486

[2] http://www.aplng.com.au/pdf/factsheets/Coal_seam_gas_production_and_the_Great_Artestian_Basin.pdf

No comments: