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Skarv SURF FEED September 2006. Reinertsen’s role in Skarv : Early part of FEED (Front End Engineering and Design ) two main contributors : FPSO ”Everything below the surface”. Organisasjon. REINERTSEN AS. Erik R./Torkild R. Reinertsen (50/50%). STØTTEFUNKSJONER.

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slide2

Reinertsen’s role in Skarv :

Early part of FEED

(Front End Engineering and Design )

two main contributors :

FPSO

”Everything below

the surface”

slide3

Organisasjon

REINERTSEN AS

Erik R./Torkild R. Reinertsen (50/50%)

STØTTEFUNKSJONER

(HMS/KS, IT, Økonomi, Personal,

Forretningsutvikling)

*

STORE PROSJEKTER

Divisjon

Divisjon

Divisjon

Divisjon

INSTALLASJON

ENTREPRENØR

ENGINEERING

FABRIKASJON

Trondheim, Oslo og Bodø

Orkanger

Trondheim og Bergen

Trondheim, Oslo og Bergen

REINERTSEN AB

REINERTSEN NWR

AkerReinertsen AS

Stockholm og Gøteborg

Murmansk, Russland

Trondheim

Selberg

Arkitektkontor AS (75%)

Trondheim

ConSepT AS (51%)

Trondheim

Omsetning : 2 000 mill kr

Antall ansatte : 1 300

* EPCI og Entrepriseprosjekter

flerfaglig engineering
Flerfaglig Engineering

Total engineering 550

  • Prosjektledelse 50
  • Prosess 35
  • Instr/Elektro 60
  • Rør / Mekanisk / HVAC 90
  • Struktur / Stål 65
  • Teknisk sikkerhet 15
  • Prosjektstyring 50
  • Anskaffelser 30
  • Rørledninger 55
  • Bygg / samferdsel 100
divisjon fabrikasjon avd orkanger
Divisjon fabrikasjon, avd. Orkanger
  • Startet 1996
  • Tomteareal: 60.000 m2
  • Fabrikasjonshaller: 3.640 m2
  • Kontorer: 1.350
  • Utfører fabrikasjons-/sammenstillingsfasen i O&G prosjektene til REINERTSEN
  • Utfører tjenester innen rør, plate, sveis, NDT/TT, dim.kontroll, overfaltebehandling (underlev.)
norne subsea tee
NORNE SUBSEA TEE

PROTECTION STRUCTURES

Y-CONNECTIONS FOR PIPELINES

Skirne / Byggve kompressormodul

divisjon fabrikasjon avd murmansk reinertsen nwr
Divisjon fabrikasjon, avd. Murmansk (”REINERTSEN NWR”)
  • Strategisk viktig etablering med tanke på økt konkurransekraft, så vel som posisjonering ovenfor ett spennende marked som kommer.
  • Etablering av verksted for prefab av stålkonstruksjoner
  • Norsk ledelse, russiske operatører
  • Opplæring og sertifisering på Orkanger
  • Utstyr importert hovedsaklig fra Norge (!)
slide8

Kollsnes

Tjeldbergodden

pipeline experience
PIPELINE EXPERIENCE
  • REINERTSEN Engineering has performed engineering of subsea pipelines for more than 20 years.
  • Detail Engineering projects: 45
  • Engineering Studies, Basic Engineering and Verification projects: 70
  • Ongoing Detail Engineering projects:
    • Ormen Lange pipelines
    • Snøhvit pipelines
    • Marlim, Golfinho - Brasil
slide12

Skarv is Technically interesting, as RE does the FEED of all main parts subsea : Risers, flowlines, export line, umbilical, manifolds, tie-ins, templates (FMC Kongsberg under RE)

  • Production Facility Characteristics:
  • Reserves 420 Mboe
  • Oil production capacity 85 Kbopd
  • Gas production capacity 670 mmscf/d
  • Gas export capacity 500 mmscf/d
  • Gas injection capabity 250 mmscf/d
  • SURF/Export Scope (Phase 1):
  • 400 m water depth
  • 4 Subsea Drill Centres
  • 16 Wells (13 pre-drilled)
  • 80kms of 26” spur pipeline to ÅTS line
  • Environmentally sensitive seabed (corals)
slide13

Main concept for

the Skarv project

Note : Some of the wall thicknesses may be outdated

slide15

5 drill centres tied back to one FPSO :

Skarv A : Gas production

Skarv B/C, Template 1 (West) : Oil production, water injection

Skarv B/C, Template 2 (East) : Oil production, gas injection

Tilje : Oil production, gas injection

Idun : Gas production

In addition there is a possible, future template, to be installed around 2018 :

Snadd S : Gas production

Anticipated field life is 25 years.

Export of production oil and condensate will be by shuttle tanker.

Gas export will be via a dedicated export pipeline to the Åsgard Transport System.

slide16

Packages procured as part of RE scope :

Pipe supply, flowlines ITT 2006/2007

Pipe supply, GEP ITT 2006

Flowline installation ITT 2006

Gas Export pipeline installation ITT 2006

Riser supply ITT issued

Riser installation ITT 2006/2007

GEP coating ITT 2007

Umbilical supply ITT 2007

General subsea installation ITT 2006

Subsea production system (SPS) ITT Sept./Oct 2006

Valve supply ITT 2007

Connector supply ITT 2007

Fabrication of structures ITT 2007

ITT = Invitation to Tender

slide17

BP will handle bids. Thus, no particular strategy towards tenderers from RE’s side. RE’s scope is merely assisting BP with ITT preparation, evaluation of tenders and giving advice in technical questions.

slide18

Natural to split between flowlines and the gas export line :

Flowlines :

10” and 12” pipelines, mostly 2 to 5 km long. Max. is Idun of 12km.

Riser bases may move (probably)

No SSIVs

Template at far end

Gas export line :

26” pipeline, 80km long

Fixed export riser base

2 SSIVs

Tie-in to existing Åsgard Transp. T

slide20

Flowline system, Risers

ITT’s for riser supply already issued

Riser vendor will probably deliver the risers with bending stiffeners included. Vendor to be decided arround December this year.

slide21

Flowline system, Risers

The riser system consists of 11 risers and 2 dynamic umbilicals.

The risers are un-insulated 8” and 10” production risers, as well as 12” gas injection and gas export risers.

Pipelines will be connected to the riser system at the riser bases located approx. 350 m.

slide22

Flowline system, Risers

Perhaps a market for rock dumping, concrete mats on the seabed, anchoring, buoyancy elements or installation. Otherwise not much for local suppliers.

slide24

Flowline system, riser bases (RB)

Riser base (10” & 12”)

9 riser bases (plus one for Snadd)

Dimensions: 9.5m x 3.3m

Dry weight: 20 tonnes

slide25

Flowline system, riser bases (RB)

Procurement items :

Material supply

Valve supply

Fabrication

Design parameters :

9 riser bases

Will move on the seabed (probably)

Pdesign = 330 bar or 420 bar (GI)

Tmax = 135oC or 60oC (GI)

Tmin = - 30oC or -10oC (GI)

10” or 12” Flowlines (clad steel)

8” or 10” Risers

slide27

Flowline system, Pipelines

Different layout options have been evaluated for the flowlines. At the FEED phase BP has landed on one base case and three optional solutions.

Base case for the flowlines is the following :

1) Skarv A,Skarv B/C and Tilje clad steel piping + 25% Cr. (in Zone 2).

Wet insulation (U value = 3 W/m2K), Reeled.

2) Idun with Butting Bubipipe (?). Wet insulation (U value = 3).S-Laid, Hydrate management through DEH, Direct Electric Heating (long line)

Maximum possible wall thickness (from fabrication point of view) will be used, i.e. 18mm for 10" lines and 22mm for 12" lines in Zone 1.

skarv flow lines piping
Skarv Flow Lines, Piping

3 alternative solutions for the flowlines are :

1) All flowlines reeled with 13% Cr. Material.

2) All flowlines laid in bundles.

3) Combined bundle (Skarv A, B and C) and S-Lay (Idun)option

slide29

Flowline system,

Pipelines

Possible supply items :

Seabed intervention

Counteracts

Installation of pipe

Input parameters :

Rugged terrain with

Ploughmarks from the Ice Age

Volume of stone dumping up to 120 000 m3 for the flowlines(crude estimate = 3m3 pr. m. pipeline. Kristin was by comparison 0.4m3)

Export line = 240 000m3

Total = 2.3 x Oslo Rådhus

Depth up to 400 m.

2.3 x

slide31

Flowline system,

Pipelines

Possible supply items :

Pipeline insulation

Input parameters :

U=3 W/m2K

Multilayer PP coating with FBE layer inside.

slide33

Flowline system, Pipeline End Terminations (PLET)

PLET STRUCTURE

9 PLETS for the flowlines (plus one for Snadd)

SIZE

2.3 m x 5.3 m x 1.8 m (W, L, H)

DRY WEIGHT

Approx. 3 Tonnes

slide34

Procurement items :

Material supply

Fabrication of structure

Connector

Design parameters :

9 PLETs

Pdesign = 330 bar or 420 bar (GI)

Tmax = 135oC or 60oC (GI)

Tmin = - 30oC or -10oC (GI)

10” or 12” Flowlines (clad steel)

slide36

Flowline system, Spools

  • Spools will probably be of clad steel piping from JSW.

Procurement items :

Fabrication

Design parameters :

9 spools

Pdesign = 330 bar or 420 bar (GI)

Tmax = 135oC or 60oC (GI)

Tmin = - 30oC or -10oC (GI)

10” or 12” Flowlines (clad steel)

  • (3D ANALYSES MODEL
    • Nonlinear Analyses including nonlinear material behaviour and friction against seabed. PLET included in analyses model )
spool weights and maximum sizes
Spool Weights and Maximum Sizes
  • Spools sizes governed by analyses, installation tolerances and required clearance to nearby spools/structures
  • For 12” the biggest spools are between Skarv A/Tilje Templates. Size governed by template locations.
slide39

Flowline system, Templates

Templates will be given as a complete EPC contract. Common suppliers are :

FMC Kongsberg

Aker Kværner Subsea

Vetco (previous ABB)

Cameron

Drillquip

slide40

Flowline system, Templates

A number of items to be supplied for each of the 5 templates :

Steel work

Xmas trees

Valves

Couplings / control systems

Multiphase metres

Electric connectors

Pressure/temperature sensors

Choke bridges

However, to be procured by EPC contractor (contract award around 1st. Of April)

slide42

Umbilicals

Procurement items :

Manufacturing of umbilical

Installation of UMB

Bending stiffeners, buoyancy elements

Challenge :

Big !

220-270 mm. cross section

Weight=30-50 kg. pr. meter

24 hydraulic lines

20 el. subsea connectors

Several subsea optical connectors

1.5” pipes, prone to fatigue

Total length of at least 22 km.

slide43

Umbilicals

URB

Dimensions: 11m x 6m (HOLD)

Dry weight: 35 tonnes (HOLD)

slide44

Umbilicals

Procurement items :

Procurement items :

Procurement items :

Material supply

Fabrication

Installation

Design parameters :

Design parameters :

Design parameters :

350 meters depth

Challenge :

Big termination head as well :

Weight = 4-5 tons

Dia = 5-700 mm.

Length = 5-6 m.

Another challenge is to avoid conflict between the flexible umbilicals and the other risers

slide45

Gas export line system :

Some components similar to those of the flowlines, but…

slide48

Export riser base (ERB) :

Procurement items :

Procurement items :

Procurement items :

Material supply

Valve supply

Fabrication

Design parameters :

Design parameters :

Design parameters :

1 ERB

Fixed on seabed

Pdesign = 303 bar

Tmax = 60oC

Tmin = - 10oC

26” normal Carbon steel pipeline

22.5 mm. Wall thickness in pipeline

slide50

GEP, Pipeline :

Procurement items :

Seabed intervention

Counteracts

Insulation

installation

Design parameters :

80 km of 26” normal carbon steel pipeline

3 layer polyethylene coating and 45 mm.

layer of concrete

PE coating inside pipeline to optimize flow, corrosion

protection during storage and to ease cleaning

Pdesign = 240 bar

Tmax = 60oC

Tmin = - 10oC

Pipeline will be S layed. Intervention work will mostly consist of stone dumping for reduction of free spans and expansion control. 240 000 m3 of rock estimated.

slide51

PLETs and Spools :

Same procurement items as for Flowlines

Same design parameters as for GEP pipeline and ERB

slide54

Pipeline End Manifold (PLEM) :

Procurement items :

Procurement items :

Material supply

Valve supply

Fabrication

Design parameters :

1 PLEM

Pdesign = 240 bar

Tmax = 60oC

Tmin = - 10oC

26” normal Carbon steel pipeline

22.5 mm. Wall thickness in pipeline

slide56

Hot-tap tee :

Overtrawlable cover

ÅT 42”

16” Crossover Spool

slide57

Hot-tap tee :

Procurement items :

Connection spool

Fabrication

(hot tap tee already installed)

Design parameters :

As for PLEM