|
| |
Offshore Drilling Rig
Rig is
classified by ABS as A1 Offshore Installation -
Platform and has maintained current ABS
Annual Hull and Annual Loadline Certificates.
I. Jackup Vessel equipped as follows:
Living Quarters to Accommodate approximately 44, w/Showers, Toilets, Day Room,
and Facilities.
Kitchen & Dining Facilities to include Galley, Cooling, Storage and
Tables/Chairs.
Offices and Storage Rooms.
Two (2) 58 person Watercraft Motorized Lifeboats.
Three Fairbanks-Morse 10 Cylinder Diesel Engines and Generators.
One (1) Linkbelt ABS 218 Pedestal Mounted Crane with 100' Boom.
One (1) Unit Mariner 480-H Pedestal Mounted Crane with 75' Boom.
70' x 70' Helideck Suitable for S-58.
One (1) Diesel Fire Pump.
Tool Rooms and Equipment.
Hydraulic Jacking System Lifting Pumps, Motors, Surge Tanks and Controls.
Diesel and Gas Generators for Accommodations w/Control House.
Skid Units for Production and Compression Equipment.
Air Tanks.
Mat Access Caisson.
Ballast Pumps & Equipment.
Diesel Storage Tanks, Water Storage Tanks and Ballast Tanks.
II. Principal Characteristics
The principal characteristics for the Rig are summarized below:
Platform
Length overall (not including
helideck cantilever) 217'-6"
Helideck Overhang 40'-0"
Width 117'-0"
Depth 14'-0"
Mat
Length 184'-0"
Width 117'-0"
Depth (excluding skirt) 8'-0"
Depth with skirt 11'-0"
Footprint 19,650 ft2
Support Columns (Qty. - 4)
Length (excluding 14'-6" of
attachments @ top) 180'-6"
Outside Diameter 12'-3/8"
Longitudinal center to center spacing 102'-0"
Transverse center to center spacing 78'-0"
Access Column (Qty. - 1)
Length (excluding 3'-6" of
attachments @ top) 188'-0"
Outside diameter 6'-0"
Spud
Length 112'-0"
Outside Diameter 11'-2 3/8"
Maximum soil penetration 100'-0"
Maximum stroke 95'-6"
Minimum depth below mat when retracted 4'-6"
Minimum depth below bottom of skirt 1'-6"
Operating water depth range 25'-100'+
Operating Capabilities & Limits of Service
List of Environmental Information
Design wave height (based on 100-year
storm recurrence interval from
A.H. Glenn and Associates) 39 ft.
Current: design current of 1.5 knots at
the water surface, 1.5 knots at
30 ft. Above mudline, decreasing linearly
to 0.5 knots at the mudline.
Wind 140 mph
Water depth 43 ft. MLW
Astronomical + storm tide 11.0 ft.
Total still water depth 54 ft.
Marine growth: the effects of marine growth
has been included in the design 1.5 inch for
jacket diameter.
Period of maximum wave 15.4 sec.
Total Design Loads
Live + dead loads in vertical direction 400 kips
Environmental loads in worst direct
(Transverse) 428 kips
Maximum mudline moment in the worst
direction corresponding to maximum
force in b. above 18,745 ft kips
Maximum monent below mudline for the
same condition (42' below mudline,
single pile) 429 ft kips
Maximum Wave Height for Commencing Jacking 5 ft.
Maximum Weight for Jacking 4,650 L.T.
Maximum Weight for Lowering 4,650 L.T.
Maximum Platform Weight for On-Bottom
Operation (Limited by 750 K Lug Reaction) 5,178 L.T.
Maximum (Loadline) Draft on Upper Hull 8' - 0"
Minimum water depth possible at 8'-0" barge draft 22'-1 3/8"
Barge Draft 8' - 0"
Min. Separation 1' - 7 3/8"
Mat Depth 8' - 0"
Spud Tip Below Mat 4' - 6"
22' - 1 3/8"
Lightweight of Unit
An inclining test and deadweight survey were
performed on the vessel outfitted as a drilling
unit on 25 September 1981.
The lightship characteristics are as follows:
Mean draft in salt water 6' - 0 1/4"
Displacement 8,413 L.T.
V.C.G above baseline of barge 26.16 ft.
L.C.G. fwd of frame 0 (stern) 99.59 ft.
T.C.G. to port of centerline 1.15 ft.
Mat/barge separation 1' - 7 3/8"
Upper hull light weight 4,126 L.T.
Mat & column light weight 4,287 L.T.
|
