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Riggdata > Sedco 712

Sedco 712

Semi-submersible - Unknown

Type:	Semi-submersible
Status:	Unknown
Sector:	UK
Owner:	Transocean
Water depth:	1 600
Max drill:	25 000
Day rate:	$0
Comments:

Sedco 712 Specifications

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+Rig information V

Vessel type:	SS
Vessel design:	Earl & Wright Sedco 711 series
Construction date:	1983
Upgrade date:
Classification:	ABS+A1 society

+Rig Ratings V

Maximum water depth rating:	1600 ft.
Maximum drilling depth:	25000 ft.

+Vessel particulars V

Total vessel power:	9600 H.P
Maximum vessel speed(transit speed):
Quarters capacity:	98 persons
Length:	295 ft.
Width:	249 ft.
Transit draft:	21 ft.
Operation draft:	83 ft.
Maximum variable load (operating/survival):	3990/ M.T.
Moonpool size (ft. X ft):	23x24

+Vessel particulars continued V

Thrusters (No. And H.P):	2x3000
Size of chain:	3" In.
Chain grade:
Length of chain:	4300 ft.
Wire rope diameter:
Length of wire rope:
Anchor size (No x M.T):	8x12

+Lifting equipment V

Pedestal crane 1:	50 M.T.
Pedestal crane 2:	50 M.T.
Pedestal crane 3:
Pedestal crane 4:
Riser handling crane:

+Drilling equipment V

Derrick rating:	1300 Max Hook kips
Derrick manufacturer:	Dreco
Derrick footprint (ft. X ft. X ft):
Drawworks:	2500 H.P.
Drawworks:	NOV
Drill line size:
Rotary table size:	49,5" In.
Iron roughneck:
Top drive:	NOV TDS-5H
Heave compensator(motion compensator):	Vetco
Heave compensator capacity (operating/pinned)):	600 Kips
Pipe racking system:

+Mud systems V

Mud pumps:	2
Mud Pumps:	Continental Emsco FB 1600
Liquid Mud:	2400 bbls.
Fuel Oil:	6617 bbls.
Bulk storage capacity (mud/cement or total):	9670/9670 Cu. ft.
Shale shakers:	5
Desander:
Desilter:

+Riser & Riser tensioner data V

Riser tensioner(total capacity):	800 kips
Riser tensioners:
Riser tensioners:
Diverter size:
Riser size:	21" O.D. In.
Riser joint length:
Riser manufacturer:

+BOP & BOP control data V

BOP Operating pressure:	15 Ksi
C&K line size:	3" I.D. In.
Ram BOP's:	4
Ram BOP's:	Hydril
Annular BOP's:	2
Annular BOP's:	Hydril
Wellhead connector:	Vetco H4 Type
BOP control system:	Hydraulic Type
BOP control system:	Koomey

Sedco 712 in Perspective

+Contract historyV

Status	Operator	Start	End	DayRate	Comment

+Rigs owned by Transocean (20)V

20.03.2012 Her er de ledige riggene i Nordsjøen

Blir de skrapet, solgt eller pusset opp?

10.06.2005 Oilexco med funn i Nordsjøen

Det kanadiske oljeselskapet, Oilexco Inc., har funnet olje i blokk 15/24b på MacCulloch feltet på britisk sokkel.

07.10.2004 Økte riggrater i Nordsjøen

Transocean får en dagrate på US $103,000 for den halvt nedsenkbare riggen Sedco 712 av kanadiske Oilexco.

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07.10.2004 Økte riggrater i Nordsjøen

Transocean får en dagrate på US $103,000 for den halvt nedsenkbare riggen Sedco 712 av kanadiske Oilexco.

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Sedco 712 Suppliers

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Produkter (0)
Tjenester (0)
Multi disciplin (0)

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Rig information

Vessel type	SS
Vessel design	Earl & Wright Sedco 711 series
Construction date	1983
Upgrade date
Classification	ABS+A1 society

Rig Ratings

Maximum water depth rating	1600 ft.
Maximum drilling depth	25000 ft.

Vessel particulars

Total vessel power	9600 H.P
Maximum vessel speed(transit speed)
Quarters capacity	98 persons
Length	295 ft.
Width	249 ft.
Transit draft	21 ft.
Operation draft	83 ft.
Maximum variable load (operating/survival)	3990/ M.T.
Moonpool size (ft. X ft)	23x24

Vessel particulars continued

Thrusters (No. And H.P)	2x3000
Size of chain	3" In.
Chain grade
Length of chain	4300 ft.
Wire rope diameter
Length of wire rope
Anchor size (No x M.T)	8x12

Lifting equipment

Pedestal crane 1	50 M.T.
Pedestal crane 2	50 M.T.
Pedestal crane 3
Pedestal crane 4
Riser handling crane

Drilling equipment

Derrick rating	1300 Max Hook kips
Derrick manufacturer	Dreco
Derrick footprint (ft. X ft. X ft)
Drawworks	2500 H.P.
Drawworks	NOV
Drill line size
Rotary table size	49,5" In.
Iron roughneck
Top drive	NOV TDS-5H
Heave compensator(motion compensator)	Vetco
Heave compensator capacity (operating/pinned))	600 Kips
Pipe racking system

Mud systems

Mud pumps	2
Mud Pumps	Continental Emsco FB 1600
Liquid Mud	2400 bbls.
Fuel Oil	6617 bbls.
Bulk storage capacity (mud/cement or total)	9670/9670 Cu. ft.
Shale shakers	5
Desander
Desilter

Riser & Riser tensioner data

Riser tensioner(total capacity)	800 kips
Riser tensioners
Riser tensioners
Diverter size
Riser size	21" O.D. In.
Riser joint length
Riser manufacturer

BOP & BOP control data

BOP Operating pressure	15 Ksi
C&K line size	3" I.D. In.
Ram BOP's	4
Ram BOP's	Hydril
Annular BOP's	2
Annular BOP's	Hydril
Wellhead connector	Vetco H4 Type
BOP control system	Hydraulic Type
BOP control system	Koomey

Further details

Picture sources: Operators, contractors suppliers, Offshore.no, Oljedirektoratet (OD), Olje- og Energideptartement (OED), and Norsk Oljemuseum.

Last updated: 2/25/2013 4:58:05

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