Union Jack Oil PLC Results of Wressle Downhole Pressure Analysis (8664Y)
January 19 2022 - 2:00AM
UK Regulatory
TIDMUJO
RNS Number : 8664Y
Union Jack Oil PLC
19 January 2022
This announcement contains inside information for the purposes
of Article 7 of the Market Abuse Regulation (EU) 596/2014 as it
forms part of UK domestic law by virtue of the European Union
(Withdrawal) Act 2018 ("MAR"), and is disclosed in accordance with
the Company's obligations under Article 17 of MAR.
19 January 2022
Union Jack Oil plc
("Union Jack" or the "Company")
Results of Wressle Downhole Pressure Analysis
Union Jack Oil plc (AIM: UJO) a UK focused onshore hydrocarbon
production, development and exploration company, is pleased to
provide a summary of the results of an analysis of the bottom hole
pressure data acquired from the Wressle-1 well during December
2021. The interpretation was completed by ERCE, an independent
energy consultancy, on behalf of the Wressle Joint Venture
partners.
Union Jack holds a 40% economic interest in the Wressle
development.
Highlights
-- Results demonstrate the significant potential of the
Wressle-1 well and the production rates that could be achieved once
the surface facilities are optimised and a gas monetisation scheme
is in place
-- Based on the current reservoir pressure and a flowing tubing
head pressure of 400 pounds per square inch gauge ("psig"), ERCE
estimates that a rate of 1,216 barrels of oil per day ("bopd")
would be possible, whilst maintaining a flowing bottom hole
pressure above the oil saturation pressure ("bubble point")
-- At 300 psig flowing tubing head pressure, ERCE estimates the
well could flow at a rate of 1,543 bopd whilst at the oil bubble
point
-- Analysis of the original drill stem test ("DST") in 2015
indicated a permeability of 55 millidarcies. Recent analysis by
ERCE indicates a reservoir permeability of 80 millidarcies
-- The successful proppant squeeze undertaken on the Wressle-1
well was designed to reduce the skin factor affecting the well. The
skin factor is an estimate of damage incurred during drilling,
completion and/or testing. Following this procedure, the skin
factor of the well has dropped dramatically from 107 to 0.2
Executive Chairman of Union Jack, David Bramhill, commented:
"The conclusions of the ERCE interpretation demonstrate the
material potential of the Wressle-1 well and the flow rates that
could be achieved from the Ashover Grit reservoir interval.
"Apart from the reserves within the Ashover Grit reservoir as
currently accessed by Wressle-1, there remains a significant
resource volume identified in the separate Wingfield Flags and
Penistone Flags reservoirs which await development and the
progression of the proposed gas monetisation scheme which offers an
additional revenue stream.
"The Joint Venture partners look forward to unlocking the full
potential of Wressle-1 and to making further announcements in
respect of progress in due course".
For further information, please contact
Union Jack Oil plc info@unionjackoil.com
David Bramhill
SP Angel Corporate Finance LLP +44 (0)20 3470 0470
Nominated Adviser and Broker
Richard Morrison
Richard Hail
Caroline Rowe
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END
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