Stories tagged with "methane"

Australia: A Rising Source for LNG Exports Using Coal Seam Gas?

Based on recent posts like "Will the UK Face a Natural Gas Shortage this Winter?" and "ASPO comments regarding Spain", it looks like Europe will be looking for additional sources of LNG supplies in the next few years. The question is whether there will be sufficient supply available.

One source of supply that may not have been considered is LNG from Australia. Australia has begun developing its unconventional natural gas production, and may in fact be able to ramp up its exports in the next few years — if not to Europe, to other countries in need, freeing up LNG exports from elsewhere for Europe.

There had been persistent concerns that the east coast of Australia would suffer a shortfall of gas supplies as the Cooper Basin and Bass Strait natural gas fields declined, with the possibility of constructing a pipeline from Papua New Guinea to meet demand being considered. These fears have subsided in recent years as large quantities of coal seam gas (CSG) have been discovered. The new gas production has not only proved sufficient to offset declines elsewhere, but quantities are large enough to result in a rush to export surplus gas in the form of LNG.

In recent months we've seen a surge in the stock market valuations of coal seam gas producers, triggered by a bid by BG for Origin Energy - one of the major players in the sector - a few months ago. The bid eventually failed, with Origin instead choosing to partner with Conoco Phillips in a CSG to LNG development, with Conoco paying $US9.6 billion ($12 billion) for a half-share of Origin Energy's CSG assets.

BG's interest was triggered by a desire to locate new sources of gas for their LNG export markets, particularly in Singapore - and they are just one of a number of players interested in turning Australian CSG into LNG and exporting it to markets in Asia and elsewhere.

In this post I'll look at recent events in the industry and what they mean for Australian gas production in future.

In coal mines, the Penitent really was

This is a little technical meander that occurs with some regularity, on Saturdays. It is largely for background information, and is a very simplified explanation of what happens in drilling oilwells and for related underground resources. Because the series is now getting longer, references to earlier posts are given at the back end of this one. And to explain the title, and give an indication of today's topic; one of the nastier jobs in early coal mines was given to a man called a Penitent. He would wrap himself in wet rags and crawl along the floor holding a long stick with burning rags on it, ahead of him, and up against the local mine roof. The intent was to burn dangerous pockets of methane before they got large enough to explode.

There is a debate in Los Angeles about the risks involved in extending the subway from Wilshire Boulevard to the sea. The major concern is with methane pockets. Because

Millions of years ago, the L.A. Basin was under the Pacific, and centuries of dead sea life created rich reserves of fossil fuel. By the early 20th century, the fuel was being pumped out in a maze of active oil fields. Today, many of the old pumps are gone, but significant pockets of explosive methane and other subterranean gases remain.

The Fairfax area -- home to the bubbling La Brea tar pits -- poses a particularly vexing problem for diggers.