Transcript Valhall timeline

Valhall development timeline
Licence award
Licence award: The Valhall block 2/8 was among the more attractive in the first offshore licensing round announced by Norway
in 1965. The first well was spudded on the field in 1967. The license was awarded to Amoco as operator and partners British
Gas Council, Amerada and Texas Eastern
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Valhall Development Timeline
Discovery: The drilling rig Waage Drill discovered a thick oil zone with the eighth well, 2/8-6. Norway’s fourth oil field was a
fact. The 2/8-7 and 2/8-8 wells drilled during 1976, led to the discovery being declared commercial the same year.
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Production start
Offshore platform installation started in 1979 with the installation of the Quarters Platform (QP), Drilling Platform (DP) and
Process and Compression Platform (PCP). Production commenced on1st October 1982. At the opening of the field it was
expected that Valhall would produce oil at least until 2000.
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Hod 1 installed
The field was discovered in1974 and came on stream in 1990, in practise as Valhall’s fourth platform. Hod was the first normally
unmanned and remotely operated platform offshore Norway and produces via Valhall.
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Wellhead Platform installed
The topsides of the Wellhead Platform (WP) with bridge to PCP was installed in April 1996 and production started in June. This
was the fastest development project in the Norwegian North Sea - less than a year from start of construction to first oil. The new
platform increased recoverable reserves by close to 80 million barrels.
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Valhall Flank South Platform installed
Valhall Flank South Platform (VFS) is a normally unmanned platform with 16 well slots that produces via Valhall. It is located 6
km from the field centre and commenced production in 2003. The VFS platform is important for production and to improve the
field recovery factor through accessing reserves further away from the field center.
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Valhall Injection and Flank North platform installed
The first water injection was in 2004 and the aim is to push more oil through the resevoir and to reduce the subsidence rate.
The Injection Platform (IP) has 24 slots and an automatic platform-based drilling rig that can service both IP and the WP
platforms. The Valhall Flank North Platform (VFN) came on stream in 2004…
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Process and Hotel Platform installed
The Process and Hotel Platform (PH) has a design life of 40 years and is expected to start production during 2H 2012. It will
replace the QP, DP and PCP-platforms and has capacity of 120mbop/d and 143mmscf/. 180 single bed cabins. It is powered
from shore via a 294 km long DC cable from Lista making Valhall emission to air close to zero.
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Hod 2 and West flank installed
Construction and installation of two platforms (Hod2 and VFW) are part of Greater Valhall Appraisal Program and will represent
an investment of NOK 25-30 billion including drilling of between 20 and 30 production and injection wells in phase one. The
purpose is to significantly increase Hod recovery) rate and to enhance the development of the west flank of the Valhall field.
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PCP, DP, QP and Hod removal
Between 2015 and 2025 it is expected that the first generation and redundant platforms will be decommissioned and removed.
The illustration shows which platforms we today foresee will produce until closure of the field, currently expected to be in 2050.
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Flanks N+S+W, Hod 2, wellhead platform,
injection platform, process and hotel platform
By 2050 we aim to have reached our vision of around 2 billion barrels of oil produced. On cease of production all wells will be
plugged and abandoned. The decommissioning and removal of the installations and seabed equipment will follow. A great
adventure and a prominent part of Norway’s oil history will eventually come to its end.
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