Dangerous.. you will be happy to see a bit of news here...
Metgasco (ASX:MEL) advises that reservoir testing of the Ripley Road sandstone has now been
completed. This consisted of two tests in the Ripley Road.
In the first test, the well was perforated over a 5.3 metre interval between 2,043.7 and 2,050
metres, representing the lowest accessible zone identified from the wireline logs. For the second
test, the well was perforated over a 12 metre interval between 1,980 and 2,035.5 metres.
Following perforation the test program for each zone consisted of an Impulse Build Up Test
followed by cleanup, flow after flow tests and subsequent build up.
As previously announced, following a 7 hour cleanup flow, the first zone flowed at a stabilised
rate of 2.97 million scfd through a 1” choke after 15 hours flow. Following completion of the flow
after flow tests and subsequent build up, the downhole pressure gauges have been recovered
and data sent for analysis. Gas recovered during the test was very high in Methane and low in
all other components with 95.8%, Methane, 2.1% nitrogen, 0.3% carbon dioxide, and 1.8%
heavier hydrocarbons. A subsequent gradient survey did not indicate any significant production
of liquids to the wellbore during the flowing periods. No condensates were recovered.
The second test was conducted over the past week and was terminated early due to the slow
pressure build up. Further testing of the zones in the second test as a tight gas reservoir will be
considered.
With the completion of testing in the Ripley Road, the testing program will commence in the
Gatton formation where testing of a further 5 zones is proposed .The testing program is currently
being conducted without a rig and straddle packers and tests are completed using the full
wellbore to reduce cost. Owing to the extensive number of zones and the nature of the testing
process, the remaining program adopted will require up to 12 weeks to complete. The program
and zones tested will be modified as results are obtained from each test zone.
The data collected from these tests will used to progressively generate reserves estimates and
as input to the design of a drilling and completion program for full field development.
