Available

Ocean Greatwhite

6th-Gen Ultra-Deepwater Harsh Environment Semisubmersible — 9,840ft WD

9,840 ft
Water Depth
outfitted
35,000 ft
Drilling Depth
2016
Year in Service
180
Accommodation
berths
Ocean Greatwhite
6th-Gen Ultra-Deepwater Harsh Environment Semisubmersible — 9,840ft WD

The Ocean Greatwhite is a sixth-generation ultra-deepwater harsh-environment semisubmersible built to the Moss CS60E design, entered service 2016. Rated to 9,840ft water depth and 35,000ft drilling depth, she carries an NOV TDX-1000 top drive, four 2,200hp NOV mud pumps, and an 8-thruster DP system. Accommodation for 180 personnel.

Technical Overview

Key Equipment Specifications

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General Description

  • DesignMoss CS60E
  • ClassificationDnV +A1, DYNPOS-AUTRO
  • Main Deck315ft × 255ft
  • Displacement68,375MT
  • Variable Deck Load7,500MT drilling
  • Transit Speed10 knots
  • Accommodation180 people
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Drilling Equipment

  • DerrickNOV SDBN 210ft, 1,000ST hook load
  • DrawworksNOV SSGD 5,750hp
  • Top DriveNOV TDX-1000, 1,000ST 2,000hp
  • Rotary TableNOV RST 60½" hydraulic
  • Mud Pumps4× NOV 14-P-220, 2,200hp, 7,500psi
  • Shale Shakers6× NOV VSM Multisizers
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Subsea Equipment

  • BOP StackNOV Class 8 – 18¾" 15K (2A/6R)
  • Marine RiserNOV FT-H 21", 75ft joints
  • Tensioners16× 225-kip NOV wireline (3,600 kips)
  • Moonpool95ft × 29.5ft
  • XT Carts4× 100MT
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Station Keeping

  • Thrusters8× Thrustmaster 4,800kW azimuth
  • DP SystemKongsberg K-POS / K-Chief / K-Safe
  • Mooring8× Rolls-Royce 450MT winches
  • Chain84mm NV R5 + Stevpris Mk6 18MT anchors
Equipment Gallery

Rig Photos

Capabilities

Key Advantages

01

Ultra-Deepwater Reach

Rated to 9,840ft water depth with full DP and mooring systems, making the Greatwhite suitable for frontier deepwater operations in harsh sea states.

02

High-Power Drilling Package

NOV TDX-1000 top drive delivering 2,000hp with four 2,200hp mud pumps provide the fluid horsepower needed for complex deepwater wells to 35,000ft.

03

6th-Gen DP + Moored

Dual Kongsberg DP capability combined with 8-point mooring and azimuth thrusters ensures precise station-keeping in harsh environments.

Complete Data

Full Equipment Status

General

DesignMoss CS60E
Year Entered Service2016
ClassificationDnV +A1, DYNPOS-AUTRO, HELDK-SH, BIS, E0
Main Deck315ft × 255ft
Draft77ft drilling / 36.4ft survival
Displacement68,375MT
Variable Deck Load7,500MT drilling / 6,000MT transit
Transit SpeedUp to 10 knots
Water Depth9,840ft (3,000m) outfitted
Drilling Depth35,000ft (10,670m)
Accommodation180 people

Drilling

DerrickNOV SDBN 210ft, 1,000ST hook load
DrawworksNOV SSGD 5,750hp
Top DriveNOV TDX-1000, 1,000ST, 2,000hp
Mud Pumps4× NOV 14-P-220, 2,200hp, 7,500psi
Shale Shakers6× NOV VSM Multisizers

Subsea

BOPNOV Class 8 – 18¾" 15K (2A/6R)
DiverterNOV 21¼" 500psi
Marine RiserNOV FT-H 21" 75ft joints
Tensioners16× 225-kip, 3,600 kips total
Moonpool95ft × 29.5ft

Station Keeping

Thrusters8× Thrustmaster 4,800kW azimuth
DP SystemKongsberg K-POS, K-Chief, K-Safe
Mooring Winches8× Rolls-Royce 450MT
Chain84mm NV R5 + Stevpris Mk6 18MT

Storage

Liquid Mud15,051 bbls
Base Oil4,511 bbls
Brine4,184 bbls
Fuel28,411 bbls
Drill Water12,674 bbls

Interested in This Rig?

Contact Total Drilling Supply LLC for pricing and to arrange inspection.

📞 1-860-608-2327 ✉ bob@2tds.com