kreuz subsea hot tapping · capsule_hot taps / 5-feb-16 / 7 of 12 hot tapping –subsea subsea hot...
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Capsule_Hot Taps / 5-Feb-16 / 1 of 12
10 Science Centre Road | Block 1, #01-12, Bestway Centre
Singapore 609079 | tel +65 6807 0500 | fax +65 6807 0502
KREUZ SUBSEA
Your Integrated Offshore Subsea Solutions Partner
Hot Tapping
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Project Profile – C26 Cluster Pipeline (Hot Taps)
Client End Client
01 Apr 2016
14 May 2016
Project Start
Project End
Kreuz Installer
Assets Deployed
D-1 Field
Bombay High
Project Location
a Pre- and Post- surveys
b Deck assembly and mock-up
test drill of how tap
assemblies
c Excavation of seabed under
the hot tap location to access
and assemble the hot-tap
d Removal of concrete and
corrosion coating
e 3 ea x hot taps (12”, 14” and
16”) on live line
f 5 ea x connecting spools
Water
Depth
110m
Hot tap assembly in water
Hot tap assembly lowered
Hot tap Clamp on the exposed pipe Drilling in progress
Spool lowered to seabed
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Contracting Tiers
Smart Tap Hot tap tooling
Dredger, Pipeline
Coating Removal
Tool
Kreuz Installer – installation vessel
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Hot Tapping – Mock-up on deck
Mock-up test
Deck Crew, Furmanite
and Oceaneering
assemble the hot tap, ball
valve and drill unit
Assembly will be fitted on
a test pipe piece
Perform a trial cut
Recovery of cut coupon
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Seabed Excavation
Excavation
Deck Crew prepare
dredger and deploy in
water
Diver position dredger
and excavate
Final Survey and
acceptance
Dredger recovered to
deck
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Coating Removal
Coating removal
Deck Crew prepare
Pipeline Coating Removal
Tool (PCRT)
Deploy in Water
Diver position PCRT in
pipeline and return to bell
Post removal, diver to
inspect and confirm. Diver
to grind LS Weld if reqd
Relocate PCRT to other
Hot Tap locations and
perform similar operations
Recover PCRT to deck
Coating removal opns
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Hot Tapping – Subsea
Subsea
Hot Tapping
Vessel to set up on
location
Diver survey of hot tap
location and marking
align with DMAs, deploy
lift bags, secure hot tap
clamp on the pipe, tension
the bolts, leak test
Tap drill deployed, pilot
drill the pipe, check for
leaks around
De tension the bolts,
recover drill to surface
and recover coupon
Repeat steps for 2 more
hot taps
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Spools Installation
Hot (Smart)
Tap–1
Hot (Smart)
Tap–2
Hot (Smart)
Tap–3
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Certificates
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Project Profile – Offshore Gas Spur Lines Project (Hot Taps)
Client End Client
01 May 2011
01 Oct 2011
Project Start
Project End
HD-2500
Seamac-III
Assets Deployed
Offshore
Thailand
Project Location
a Pre- and Post-
surveys
b Deck assembly
and mock-up of
tap assemblies
c 2 ea x 24” hot
taps on 42”
pipeline
Water
Depth
70m
Hot tap assembly lowered Hot tap mock-up onboard HD-2500
Spool lowered to seabed
Hot tap Drill
PTTEP
Consultant
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Kreuz Subsea is an integrated turnkey solutions provider in
IRM, Subsea Construction Services incl Hyperbaric Welding and
SURF – Unique and differentiating model
Tough and Creative
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Going beyond limits