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Leigh Creek acquires historical drill data

Published by
World Coal,

Leigh Creek Energy has acquired “significant volumes” of historical drill data for its project site in South Australia, the company said in a recent statement, including information on coal quality, geophysical and coal sample data and coal retention samples.

The Leigh Creek Energy Project aims to produce products, such as methane and fertilizer, through the in-situ gasification of deep coal resources at the Leigh Creek site.

Coal mining has taken place at Leigh Creek since the 1940s but is due to stop in November as its continuing operation has become “increasingly uneconomic,” said current mine operator, Alinta Energy, in a June press release.

The historical data comes from drilling and associated geological investigations that were undertaken by the Electrical Trust of South Australia (ETSA) in the 1970s. ETSA owned and operated the Leigh Creek site at the time, as well as the captive coal-fired power plant at Part Augusta.

“Once the data has been collated and evaluated, we will produce it to our independent resource estimation consultant, who has been engaged in constructing JORC compliant coal resource modeling and other geological services,” the company said.

The new data will allow the company to re-evaluate the optimal location of its planned drilling programme and may result in a shift in some of the planned drill holes.

It has also highlighted the upper coal seams as a possible source of additional coal suitable for in-situ gasification. The company has previously discounted these seams from its planning but will now include them in their drilling.

The historical data also includes coal samples that can be sent to coal gasification laboratories for immediate testing.

“The Leigh Creek team is very pleased to have located valuable historic drill data, which likely has the impact of bringing forward the first pass coal resource model,” said Justyn Peter, Executive Chairman at Leigh Creek Energy. :The availability of coal samples for immediate gas quality testing is a major benefit as it is a necessary part of the eventual gas in place calculations.”

The company now expects coal gasification results and a first pass coal resource model before Christmas.

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