Addax thinks big at Ofrima North
Addax Petroleum is weighing up a fast track standalone subsea development tied
back to a floating production, storage and offloading vessel for the Ofrima
North find, off Nigeria, with first oil flowing by the end of next year, it
said today.
The move follows the successful appraisal of Ofrima North, which lies in
OML137, by the Ofrima-3 and Ofrima-3A wells.
Ofrima-3 was drilled 1.5 kilometres to the west of the Ofrima-2 well - the
Ofrima North discovery probe - in the West fault block. Although the H42
reservoir was water-bearing in the Ofrima-3 well, the well hit three
hydrocarbon intervals in deeper reservoir intervals hitherto undrilled at
Ofrima North.
The three intervals are a gross hydrocarbon column of 72 feet comprising 30
feet of light oil overlain by 42 feet of rich gas, a gross liquids-rich gas
column of 50 feet and a gross light oil column of 32 feet.
The intervals were not flow tested but wireline log and static pressure data
indicate the presence of light oil and liquids-rich gas in reservoirs of
good quality, Addax said.
Ofrima-3A successfully appraised the H42 oil reservoir in the Main fault
block. The Ofrima-3A well confirmed, within the Main fault block, the
western continuity of the H42 oil reservoir and a common oil water contact
with the Ofrima-2 well, located about 1 kilometre east of the Ofrima-3A
well.
Addax discovered Ofrima North with the Ofrima-2 well, which was drilled into
the Main fault block. Ofrima-2 hit a 170 feet gross oil bearing interval in
the H42 reservoir and three gas bearing intervals with individual gross gas
columns of 29, 43 and 158 feet at shallower and deeper depths relative to
the oil bearing interval.
Addax boss Jean Claude Gandur said: "We have already booked a considerable
amount of oil reserves for Ofrima North at the end of 2007 and we believe
that the most recent discoveries give us the critical mass required to
develop a successful new standalone oil production hub.
"The further dry and liquids-rich gas discoveries continue to substantiate the
potential of an integrated oil, liquids and gas development with significant
future gas exports from OML137."
Addax said it plans further exploration and appraisal drilling at Ofrima
North and the surrounding area. The Ofrima-3 and Ofrima-3A wells were
drilled using Saipem's Scarabeo-3 semi-submersible drilling rig in water
depths of 75 metres.
Following the Ofrima North appraisal campaign the Scarabeo-3 returned to the
Okwori and Nda fields' area to commence the 2008 development drilling
campaign on those fields.
Ofrima North is about 80 kilometres west of Addax's Okwori and Nda fields and
15 kilometres south of the Agip-operated Agbara field.
01 May 2008 13:13 GMT
| last updated:
01 May 2008 13:13 GMT
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