Frigstad D80

Frigstad Engineering
The Frigstad Engineering group has provided rig designs and engineering services to the offshore drilling
and production industry since 1981. With offices in Singapore, Norway and Brazil, we have established
strong ties with major offshore shipyards and suppliers of drilling equipment _ and we are able to serve
our clients word-wide. Frigstad Engineering operates with a deeply embedded philosophy of designing
and modifying rigs according to the operational needs of the professionals who work on them and with
the expectations of oil companies and investors in mind.
The Frigstad D80 Design
Frigstad D80 is a purpose-designed semi-submersible drilling unit developed by Frigstad Engineering.
D80 is a proprietary design with superior cost efficiency and performance _ tailor made for efficient drilling
of deepwater exploration and development wells.
D80 SD DP3 + PSM Design _ Key Features
10,000 ft water depth capacity
50,000 ft drilling depth capacity
Vertical racking capacity for 7,200 ft drilling riser in 100 ft stands Storage onboard
for 10,000 ft of drilling riser
Variable deck load capacity of more than 6,000 MT
2 X 100 MT platform cranes and large deck space for handling and storage
of a number of fully assembled X-mas trees
Large moonpool opening of 39m x 8m
Powerful DP3 system with 8 thrusters that enables the rig to stay on location even
in severe weather conditions and transit by up to 8-9 knots.
Anchor winches for hook-up to pre-set mooring system
D80 OUTLINE SPECIFICATION - D80 SD DP3 + PSM
REGULATORY BODY APPROVALS
SOLAS 2004, MARPOL 1973/78, IMO MODU-CODE, all with latest amendments
CLASSIFICATION
DNV +1A1 COLUMN STABILIZED DRILLING UNIT, DYNPOS AUTRO (DP3), POSMOOR-ATA, CRANE, HELIDECK, ECO, F-AM and DRILL
ENVIRONMENTAL OPERATING LIMITS
Maximum Wind Velocity
70 knots / 100 knots
Air Gap (Operational / Survival) 9.5 / 12.5 m (31.2 / 41.0 ft)
Wave Height Hs / Hmax
10.0 / 17.7 m (32.8 / 58.1 ft)
PRINCIPAL PARTICULARS
Length of Pontoons 105.0 m (344.5 ft)
Displacement (operational) 39,618 MT (38,992 LT)
Width & Length, Pipe Rack Deck
Displacement (survival)
36,897 MT (36,314 LT)
73 x 72 m (239.5 x 236.2 ft)
Displacement (transit)
Height to Pipe Rack Deck (ABL) 37.0 m (121.4 ft) 30,644 MT (30,160 LT)
Draft (operational) 19 m (62.3 ft) Water depth (max) 10,000 ft (3,048 meters)
Draft (survival) 16 m (52.5 ft) Drilling depth (max) 50,000 ft (15,240 meters)
STORAGE CAPACITIES
Bulk mud 327 m 3 (11,550 ft 3 )
Drilling water, pontoon
2,583 m 3 (16,247 bbls)*
Bulk cement 327 m 3 (11,550 ft 3 ) Potable water 896 m 3 (5,636 bbls)*
Sack material, upper hull 8,400 sacks
Open pipe rack deck area 2,612 m 2 (28,155 ft 2 )
Base oil for mud, pontoon 653 m 3 (4,107 bbls)* Variable deck load (max operational) 6,100 MT (6,724 ST)
Liquid mud/brine, upper hull 1022 m 3 (6,428 bbls)* Variable deck load (max transit) 4,800 MT (5,291 ST)
Liquid mud/brine, pontoon 2,138 m 3 (13,448 bbls)* Payload (max operational) 10,500 MT (11,5574 ST)
Diesel FO (MDO) 3,676 m 3 (23,119 bbls)* * denote 90% capabilities
ACCOMODATION / OFFICE
Total capacity of 160 men in 1 and 2 men cabins with individual bathroom, ample office spaces and service facilities
MATERIALS HANDLING
Two (2) 100 MT revolving deck cranes with 55M boom. Capable of handling any
Deck Cranes
under water thruster changeout. One (1) 12 MT knuckle boom tubular handling
crane
MARINE SYSTEMS
Eight (8) diesel engines, each with 4,800 BkW capacity. Total installed horsepower
Main Power / Emergency Power
is approximately 38,400 BkW (51,500 BHP)
AC Power Propulsion and DP with MP+AW drives and VM system.
Power Distribution
11 kV AC alternators
Dynamic Positioning
DP class 3. Eight (8) 3.7 MW azimuth thrusters
Four (4) double drum winches with eight (8) fairleads
Mooring System
for connection to pre-set mooring system
DRILLING SYSTEMS
Single Quad Derrick with 1,000 ST capicity, Set-back for 50,000 ft drill string / casing
Drilling Rig
in 124ft-135ft stands, equiped with offline stand building capability
Rotary Table
One (1) 60.5" rotary with independent drive
Frigstad D80
Tailor Made Solutions for Efficient
Deepwater Exploration & Development
160 Men Accomodation Open & Unrestricted Deck Space
Top Drives
Riser Tensioners
BOP and Riser
Drill String
DRILLING FLUID SYSTEMS
Mud Pumps and Treatment System
One (1) Aker MH top drives with 1,000 ST capacity
Six (6) in line hydraulic cylinder riser tensioner mounted on skid system (DATS)
3,200,000 lbs with only 4 out of 6 DATS cylinders working
Two (2) 18.75" x 10,000 psi Annular preventors
Six (6) 18.75" x 15,000 psi Ram preventors
7,200 ft of 21" riser, 50 ft joints with c&k, booster and hydraulic lines
Vertical marine riser rack for 7,200 ft (100 ft stands made up of 2 x 50 ft lengths),
storage onboard for 10,000 ft of riser.
5 7/8 ,, drill string with subs, drill collars, heavy weight drill pipes
Four (4) Main Mud pumps, Triplex, 2200 HP, 7,500 psi wp
Four (4) to Six (6) Linear Motion Shale Shakers where two (2) equipped as mud cleaners
(desilter and desander), one (1) gumbo buster, two (2) Degasser Units, two (2) 60 bbls trip tanks
OTHERS
Helicopter Deck Capacity
Designed for M18 and EH 101 helicopters
Four (4) lifeboats with total capacity of 320 persons. Fourteen (14) inflatable liferafts
Life Saving Equipment
with capacity of 25 persons each. One (1) fast rescue boat
Note: The details included in this specification may change prior to completion of the rig.
Crown Mounted Compensator
8 x 3.7 MW Azimuth Thrusters
Frigstad Engineering Inc.
C/O Frigstad Engineering (Singapore) Pte Ltd
9 Temasek Boulevard Suntec Tower 2
#44-02 Singapore 038989
Tel : +65 6349 0082
Fax : +65 6223 3906
Email : fes@frigstad.com
www.frigstad.com

SINGLE DERRICK
Dynamic Quad Derrick with crown mounted
compensator and offline stand building capability.
TOP DRIVE
One (1) AC Electric top drive,
1,000 st SWL.
RISER TENSIONERS
Six (6) in line skid mounted
hydraulic cylinder riser
tensioners.
PIPE HANDLING
TEMPLATE INSTALLATION
PIPE HANDLING SYSTEM
Efficient pipe handling system with set-back
capacity for up to 40,000 ft drill pipe, or in
combination with most casing strings.
RISER HANDLING SYSTEM
Efficient riser handling system
with a set-back capacity for
7,200 ft 21'' marine riser
system in 100 ft stands.
THRUSTERS
Eight (8) 3.7 MW
azimuth thrusters.
Designed for change
out in the field.
Off line-Stand Building Capability
LIFE SAVING EQUIPMENT
Four (4) lifeboats, total
capacity 320 persons.
Fourteen (14) inflatable lift
rafts, 25 persons each
One (1) fast rescue boat.
HELICOPTER DECK
Designed for
M18 and EH101.
RISER SYSTEM
21'' marine riser.
ACCOMODATION/OFFICES
Total capacity 160 men,
all in 1 and 2 men cabins w/individual
bathroom. Ample office spaces
and service facilities.
Vertical Pipe Handling Using a
Bridge Racking Crane
Barge with template positioned
under rig with AHV’s
DECK CRANES
Two (2) 100 mt main deck revolving cranes
with 55m boom. Capable of handling any
under water thruster change out.
Horizontal Pipe & Tubular Handling
Using a Knuckle Boom Crane & Catwalk Machine
Template lowered into water
EXTENDED DECK BOX
Additional space in Deck Box on Port & Starboard
sides of the Vessel, houses Mooring Winches, Reel
Mounted "Bulk" Hoses, ventilation equipment and
provides more deck space on Pipe Rack Deck.
BOP-2 being run
on drillpipe.
MAIN POWER
Eight (8) diesel engines
with total installed
power of almost 38,400
BkW (51,500 BHP).
MOORING SYSTEM
Four (4) double drum winches with eight (8)
fairleads, for connecting to pre-set mooring system.
BOP-1 connected to
wellhead on template.
Vertical Riser Storage & Handling
Landing template on seabed