Origin Energy: Good gas flow recorded in Trefoil 1, offshore Bass Basin, Tasmania
Posted: 13 December 2004
Origin Energy Limited advises that at 6am EST today the exploration well Trefoil-1, located in the Bass Basin permit T/18P, was continuing testing operations.
Since the last report on 9 December, the first of two cased hole drill stem tests (CHDST’s) has been completed.
CHDST 1 over the perforated interval 3141 – 3150m flowed gas at a final rate of 16.3 million cubic feet per day (mmscfd) at a tubing pressure of 1329 psi through a 48/64 inch choke. The gas flow was accompanied by approximately 145 barrels of condensate per day and 43 barrels of water per day, believed to be water of condensation.
DST 2 test will be conducted over the interval 3040.5 – 3046.5m during the course of today. A further announcement will be made on the results of this test upon its completion.
Final co-ordinates of the Trefoil 1 drilling location are:
Latitude: 39° 51’ 44.12” S
Longitude: 145° 22’ 30.73” E
Water Depth: 68.9 metres
Participants in T/18P are:
Origin Energy Resources Limited* (Operator) 41.4%
AWE Petroleum Pty Ltd** 22.6%
CalEnergy Gas ( Australia) Limited 23.5%
Wandoo Petroleum Pty Ltd 12.5%
*a wholly owned subsidiary of Origin Energy Limited
**a wholly owned subsidiary of Australian Worldwide Exploration Limited
For more information see http://www.originenergy.com.au
Posted by Richard Price,
Editor EnergyME.com
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