Sound Oil PLC
18 September 2007
Sound Oil plc
18 September 2007
Pasundan-1 Operations Update - Testing
The Pasundan-1 well reached a total depth of 10412 feet on 29 August 2007.
Following wireline logging and other bottom-hole operations the drilling phase
of the well was completed on 7 September, 122 days since spud. Following
analysis of all wireline logs and subsurface samples the Citarum PSC partnership
("the Partnership") has made the decision to evaluate the hydrocarbon potential
of Pasundan-1 with three drill stem tests.
The well has been plugged back to 8382 ft for testing of the Baturaja Formation
carbonates through the previously set 7-inch liner.
Testing will be carried out with the existing Great Wall Rig 93 over two zones
in the lower part of the formation (8300-8380 ft and 8020-8070 ft). Operations
for these first two tests are expected to take 18 days.
It is the current intention of the Partnership that testing of the higher
cavernous zone (6770-6900 ft) will be carried out at a later date with another
rig. This pause in operations will allow time to resolve several technical
issues associated with testing this zone. Because of the large amount of losses
of drilling fluid and lost circulation material to this zone any hydrocarbons
present may have been flushed away from the borehole during the drilling
operations. A testing and environmental programme must be designed to recover
these large volumes of losses and ensure their safe surface handling.
Additionally during this time the subsurface conditions will be allowed to
equilibrate and allow any hydrocarbons to flow back naturally towards the
borehole and reduce the amount of fluid to be recovered for their sampling.
Sound Oil plc is a 20% shareholder (through its wholly owned subsidiary Mitra
Energia Citarum Limited) in the BPREC operating company that is drilling the
Pasundan-1 exploration well, located approximately 50 km southeast of Jakarta,
Indonesia.
Dr Michael Cope BSc PhD CGeol, Head of Exploration at Sound Oil, a qualified
petroleum geologist, has reviewed the technical information contained in this
news release.
Contacts
Gerry Orbell, Chairman - Sound Oil plc
Tel: +44 (0)7903 861145
Azhic Basirov/David Jones - Smith & Williamson Corporate Finance Limited
Tel: +44 (0)207 131 4000
Tim Thompson/Nick Melson - Buchanan Communications
Tel: +44 (0)207 466 5000
This information is provided by RNS
The company news service from the London Stock Exchange
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