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Project: |
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Talisman Energy Galley Redevelopment Project, Galley Scotland UKCS |
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Background:
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Talisman wanted a suitable pipeline connector for an 8" NB production riser and an 8" NB water injection riser that could be installed together within a 26" diameter riser caisson.
– a confined space envelope excluded the possibility to utilise conventional ASME /ANSI or API6A-6BX flange connectors
– Operating conditions for the 8” production riser : Design pressure 235Barg , min / max temperature -10/ 94 deg C
– Operating conditions for the 8” water injection riser : Design pressure 250Barg , max temperature -10 /38 deg C
– The pipeline connectors were to be assembled both topside and subsea and it was therefore important that the connector was viewed as being diver friendly.
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Solution: |
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Compact flange technology was identified as the way forward and in particular -
– Techlok clamp connectors were specifically chosen over the SPO compact flange design due to their reduced bolting circle
– this in turn reduced the bolting make up envelope.
– the subsea make up envelope was further minimised by implementing a retaining device to help seat the sealring.
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Project:
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Hibernia platform, North Atlantic
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Background:
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One of the biggest projects of its
kind (37,000 tonnes topside)
- platform required flowline upgrades
- lightweight connection solution was needed (to keep topside weight
to a minimum)
- essential for the connectors to be resistant to severe cold.
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Solution:
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Techlok clamp connectors offer 70
to 80% weight savings on traditional ANSI flanges
- proven to operate in temperatures from -254°C to 950°C.
- the clamp’s integral seal ring is resistant to the effects
of corrosion.
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Project:
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BP’s Millar platform
in the North Sea
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Background:
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Upgrade of process piping as part
of the Millar gas import project. Significant modification of topside
process piping. Joint integrity was key working at 174 to 420 bar
g. Space and weight savings were imperative topside.
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Solution:
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315 Techlok clamp connector hubs have
been provided for the upgrade in sizes from 2-16 inches and manufactured
in carbon steel and 316 stainless steel.
70 to 80 per cent weight and space savings were achieved over ANSI
flanges of the same pressure rating, high level of support for AMEC
engineers regarding the specification, installation and testing of
components to ensure best possible solution for the piping modifications.
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Project:
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BP Shah Deniz field Caspian Sea
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Background:
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Technip is responsible for
gas extraction and specified Vector a high performance, no-leak
solution to ANSI flanges was required 350 Techlok compact clamp
connectors were supplied for this Caspian project.
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Solution:
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Techlok connectors were supplied in
sizes ranging from 1 to 16 inches manufactured in duplex and super
duplex steels used on flowlines
at pressures up to 10,000 psi. Weight and space savings of some 70
to 80 per cent were achieved with improved seal integrity.
High-level service and on-going project support that were the key
reasons for Techlok being specified
Lightweight, compact and most importantly leak-free connectors provide
significant advantages over the traditional flange. Strengthening
relationships with operators and contractors in developing regions
is a key goal for Vector.
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