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Gastar Bohena: water and gas production stats

PostPosted: Thu May 27, 2010 2:15 pm
by HVPA_research
This original company report gives some useful statistics on CSG methane production rates and on the quantity of saline water extracted from their 6 pilot wells.

Gastar Exploration Announces Initial Production From Multi-Lateral Production Pilot in Australia (PDF archive)

HOUSTON, June 18, 2009 /PRNewswire-FirstCall via COMTEX News Network/ -- Gastar Exploration Ltd. (NYSE Amex: GST; TSX: YGA) today announced that the aggregate rate of gas production from the Bibblewindi multi-lateral production pilots in its coal seam gas project in New South Wales, Australia has reached 250,000 standard cubic feet per day. Water production continues at approximately 3,500 to 4,000 barrels per day. Strong water flows, the precursor to strong gas flows, have confirmed the anticipated widespread fracture network and high permeability of the Bohena coal seam. Full scale dewatering from the six production wells commenced in early May 2009. It is expected that gas production rates will continue to climb over coming months as dewatering continues. Gastar holds a 35 percent working interest in the project with the balance held by its joint development operating partner, Eastern Star Gas (ASX:ESG and OTCQX: ESGLY).

The water production rate from 6 pilot wells was 3,500 to 4,000 barrels per day. The average is 3,750 barrels.
3,750 US oil barrels times 158.9873 L/barrel is 596,202 Liters, say 600,000 L which corresponds to 100,000 L/well/day.
Thus from each well it is necessary to store or dispose 100,000 L of waste water every day.
This corresponds to five 20,000 L water tankers.