2016 Sixth Generation Ultra-Deepwater Semisubmersible

A sixth-generation ultra-deepwater semisubmersible on the Moss CS60E design, delivered in 2016. Rated to 9,840 ft water depth with DP and mooring capability, the rig features a 5,750 HP NOV SSGD drawworks, NOV TDX-1000 1,000-ton top drive, four 2,200 HP mud pumps at 7,500 psi, and eight 4,800 kW Thrustmaster azimuth thrusters. DnV classified with 180-person accommodation and a triple-pit segregated mud system for simultaneous handling of WBM, NAF, and brine.

Technical Overview

Key Equipment Specifications

🗼

Derrick & Hoisting

DerrickNOV SDBN Bottleneck, 210 ft high
Base50 ft × 52 ft
Hook Load1,000 ST
DrawworksNOV SSGD — 5,750 HP
Top DriveNOV TDX-1000, 1,000 ST, 2,000 HP
CompensatorNOV CMC-H-1000-25, 500 ST @ 25 ft stroke

🌊

Subsea & BOP

BOPNOV Class 8, 18-3/4" 15,000 psi (2A/6R)
C&K Manifold3-1/16" 15,000 psi
Marine RiserNOV FT-H 21", 75 ft/joint
Tensioners16x 225-kip NOV, 3,600 kips total
Moonpool95 ft × 29.5 ft
XT Carts4x 100 MT

💧

Mud System

Mud Pumps4x NOV 14-P-220
Pump Rating2,200 HP, 7,500 psi each
Shale Shakers6x NOV VSM Multisizers
Liquid Mud15,051 bbl (triple-pit segregated)
Drill Water12,674 bbl
Fuel28,411 bbl

⚓

DP & Station Keeping

Thrusters8x Thrustmaster 4,800 kW azimuth
DP SystemKongsberg K-POS, K-Chief, K-Safe
Mooring8x Rolls-Royce winches, 450 MT rated
Chain84mm NV R5 — Stevpris Mk6 18MT anchors
Transit SpeedUp to 10 knots
Cranes2x Seatrax S-108, 100 MT @ 42 ft

Equipment Gallery

Rig Photos

Capabilities

Key Advantages

01

9,840 ft Rated DP Platform

Kongsberg K-POS DP system with 8x 4,800 kW Thrustmaster azimuth thrusters enables full dynamic positioning to 9,840 ft water depth — or switch to 8-point Rolls-Royce mooring for extended campaigns.

02

5,750 HP Drawworks

The NOV SSGD drawworks delivers 5,750 HP for efficient tripping on ultra-deep wells. Paired with the NOV TDX-1000 top drive (1,000 ST, 91,000 ft-lbs at 115 rpm) and passive/active heave compensation.

03

Triple-Pit Segregated Mud System

Simultaneously handles three fluid types — WBM, NAF, and brine — with 15,051 bbl total liquid mud storage, 6x NOV VSM Multisizer shakers, and four 2,200 HP mud pumps at 7,500 psi.

04

6th-Gen Dual-Derrick-Ready Design

2x NOV HR IV Rackers, 2x NOV MPT Iron Roughnecks, and a powered mousehole enable efficient dual-activity operations, maximizing time on bottom in ultra-deepwater environments.

Complete Data

Full Equipment Status

General

Design	Moss CS60E
Year Entered Service	2016
Classification	DnV +A1, DYNPOS-AUTRO, BIS, E0
Main Deck	315 ft × 255 ft
Draft (Drilling)	77 ft
Displacement	68,375 MT
Variable Deck Load	7,500 MT drilling
Water Depth	9,840 ft (3,000 m) outfitted
Drilling Depth	35,000 ft
Accommodation	180 persons

Drilling Equipment

Derrick	NOV SDBN Bottleneck, 210 ft, 1,000 ST
Drawworks	NOV SSGD, 5,750 HP
Top Drive	NOV TDX-1000, 1,000 ST, 2,000 HP
Rotary Table	NOV RST 60-1/2" hydraulic, 1,134 MT
Mud Pumps	4x NOV 14-P-220, 2,200 HP, 7,500 psi
Shale Shakers	6x NOV VSM Multisizers

Subsea

BOP	NOV Class 8 18-3/4" 15,000 psi (2A/6R)
Tensioners	16x 225-kip, 3,600 kips total
Marine Riser	NOV FT-H 21", 75 ft/joint
Moonpool	95 ft × 29.5 ft

Storage

Liquid Mud	15,051 bbl (triple-pit)
Fuel	28,411 bbl
Drill Water	12,674 bbl
Potable Water	5,516 bbl
Bulk Cement	15,891 ft³

Power & DP

Main Power	8x Himsen diesel, 6,120 kW each
Total Power	48,960 kW
Thrusters	8x Thrustmaster 4,800 kW azimuth
DP	Kongsberg K-POS