Drillsearch Energy Limited : Southend-1 Gas Flow from Drill Stem Test
05/08/2012| 08:37pm US/Eastern
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Drillsearch Energy Limited
ABN 73 006 474 844
Telephone +61 2 9249 9600
Facsimile +61 2 9249 9630 admin@drillsearch.com.au
www.drillsearch.com.au Level 16, 55 Clarence Street Sydney
NSW 2000
9 May 2012
Southend-1 Gas Flow from Drill Stem Test
• Drill stem test produces gas from short flow hindered
by tool mechanical issues at Southend-1 exploration
well
• Well cased and suspended for future cased-hole
extended production testing to determine deliverability,
volume and composition of gas
• Extensive sidewall coring program completed for
unconventional gas evaluation
Drillsearch Energy Limited (ASX: DLS) is pleased to
advise that a gas discovery has been made with the Southend-1
exploration well in PEL 107. The well encountered gas shows
over two intervals with signs of possible hydrocarbon liquids
content. Operations are currently underway to case and
suspend the well for future cased-hole extended production
testing in the Patchawarra Formation.
Southend-1 completes the current Western Wet Gas Fairway
exploration campaign which targeted the Patchawarra and
Tirrawarra Formations located on the Western Flank of the
South Australian Cooper Basin. Drillsearch Energy holds a 60%
interest in PEL 107 and Beach Energy (ASX: BPT) as Operator
holds 40%.
Conventional Gas Pay Zones - The well encountered
hydrocarbon fluorescence and wet gas shows in sands within
the Patchawarra Formation and Tirrawarra Sandstone. The well
encountered conventional Patchawarra Formation sands with a
log and gas chromatograph signature similar to those observed
in the Middleton and Raven Wet Gas Fields, and the recent
Haslam-1 wet gas discovery.
Drill Stem Tests (DST) indicate a gas discovery -
Several Drill Stem Tests (DST's) were attempted over two
intervals, however, due to apparent mechanical issues a full
DST was not able to be completed. Notwithstanding, a 3 minute
gas flow was achieved that proved the presence of movable
gas.
Well Cased & Suspended for Production Testing -
Following the recovery of gas from DST, the Joint
Venture has decided to immediately case and suspend the well
for future cased-hole extended production testing to further
evaluate the gas bearing intervals.
Extensive Sidewall Coring Program - 39 percussion
sidewall cores were successfully acquired from the Toolachee
Formation, Roseneath Shale, Epsilon Formation, Murteree Shale
and Patchawarra Formation for unconventional gas evaluation
and palynological studies.
Southend Prospect Background - The Southend-1
exploration well is located approximately 5km southwest of
the prolific (Santos) Raven Wet Gas Field and 10km south of
the Middleton-Brownlow Wet Gas field (DLS 50% / BPT 50%). If
this discovery is proven up the Joint Venture sees an
opportunity to combine this discovery with the
Middleton-Brownlow Wet Gas field thus utilising its existing
infrastructure to fast track production.
The Ensign 30 rig will move west from PEL 107 in to Beach's
PEL 92 permit. We expect the rig to be drilling further PEL
91 oil wells by mid year.
Drillsearch Managing Director, Brad Lingo said "This is an
encouraging result, proving a Patchawarra Formation gas play
into PEL 107 where Drillsearch holds 60%. The JV hopes to
quickly follow up the case and suspension decision with a
cased hole test of the gas zones to prove commerciality. The
close proximity of Southend-1 to the Brownlow and Middleton
wet gas fields helps build a critical mass to support an
expansion of the initial wet gas pilot project which started
production in early January 2012."
"We are equally pleased with the successful side wall coring
program to evaluate the unconventional gas reservoir.
Additional testing and evaluation work will be required to
establish
Resources and to determine the produceability of the
unconventional zones but this is a very good starting
position."
Yours faithfully
Brad Lingo Managing Director P: +61 2 9249 9600
admin@drillsearch.com.au
Or visit the website www.drillsearch.com.au
and register for email alerts
Media enquiries to: David Greer
Executive Director
Mercury Consulting
P: +61 2 8256 3307
E: david.greer@mercuryconsulting.com.au
About Drillsearch Energy Limited (ASX: DLS), which
listed on ASX in 1987, explores and develops conventional and
unconventional oil and gas projects. Drillsearch has a
strategic spread of petroleum exploration and production
acreage in Australia's most prolific onshore oil and gas
province, the Cooper-Eromanga Basins in South Australia and
Queensland. The company's focus is on 'brownfields'
exploration where geological risk is reduced and there is
access to existing infrastructure, ensuring that any
discoveries can be brought into production.
Competent Person Statement
Information on the Reserves and Resources in this release has
been compiled by Mr. David Evans, Chief Technical Officer of
Drillsearch who has given his consent as of the date of this
release to the inclusion of this statement and the
information in the form and the context in which they appear
in this release.
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