Giàn khoan

Giàn khoan

Giàn khoan tự nâng PV DRILLING III

Giàn khoan tự nâng PV DRILLING III được đóng theo mẫu thiết kế tiêu chuẩn của Công ty Keppel Offshore & Marine cho thế hệ mới nhất của giàn tự nâng – KFELS Class B MOD V & đăng kiểm ABS, hoạt động tại các khu vực biển Đông Nam Á, Đông Á & Viễn Đông, Úc & Châu Đại  Dương… với độ sâu đáy biển lớn nhất là 121,92 m.

Giàn được trang bị các hệ thống máy móc hiện đại với công nghệ mới nhất, đặc biệt là hệ thống khoan với thiết bị chủ yếu được cung cấp từ Công ty National Oilwell Varco như Top Drive TDS-8SA, 3,450 HP National Drawwork, VFD, 14-P-220 Mud Pump, Amphion Drilling System… Giàn PV DRILLING III có khả năng thi công giếng khoan có độ sâu đến 30.000 ft (tương đương 9.144m chiều sâu khoan) và cùng lúc có thể có đến 110 người cùng tham gia làm việc trực tiếp trên giàn.

Giàn PV DRILLING III được đưa vào hoạt động từ quý 4 năm 2009.

General Description
Rig name/ Type PV DRILLING III/ Independent legs, Cantilever, Jack-Up
Design KFELS MOD V B CLASS BIG FOOT MOBILE
Built/year KFELS Singapore/2009
Classification ABS A1 SELF ELEVATING DRILLING UNIT
Overall Dimension 234ft × 208ft × 25.52ft
Legs Three legs 517ft
Cantilever capacitiy Max.distance from rear of barge to center line of well 70ft.
Well pattern retangular 30ft × 70ft.
Load rating drilling condition 1500 kips @ 70ft
Helideck 83ft × 83ft, at least of 13 MT take of weight / 504.45sq.m
Sikorsky S-61N, S92 and MI-17
Water depth 400ft
Accommodation 110 persons
Max drill depth 30,000ft
Operating conditions Max wave height 32.8ft, corresponding wave period 11.0 sec.
Current at surface 2.38 Knot, max wind speed 58.2 Knot.
Current at 164ft below surface & mud line 2.33 Knot.
Storm conditions Max wave height 42.7ft, corresponding wave period 13.4 sec.
Current at surface 2.91 Knot, max wind speed 81 Knot.
Current at 23ft below surface & mud line 1.34 Knot.
Drilling Equipment
Derrick WOOLSLAYER/ API STD 4F-Q1, 160ft clear height
Static hook load capacity 680MT w/14 lines
With of base 32ft × 35ft; With of top 14ft × 14ft
Racking platform 308 stands of 5 7/8’’ DP, 10 stands of 8’’ DC, 7 stand of 9 ½’’ DC
Belly Board and Finger to accommodate 3-1/2” TB
Drawwork 3200HP (NOV/ADS-10T Automated Drawwork System)
Driven by 03 GEB-22A-2 high torque motors, 1150HP for ea motor.
Top drive NOV/TDS-8SA-750 T 65,500 ft-lbs continuous
Rotary table NOV VBJ 49 ½’’
Max back up torque applied on the locks is 120.000ft.lbs
Max. generating torque: 45,000 ft.lbs.
Iron roughneck NOV/ AR3200M-Power Turnable. Max make-up: 100,000 ft-lbs,
Mud pumps Three NOV/14-P-220, 2200 HP triplex pumps, ea driven by two motor GEB22A2, 1150HP
Solid control Shale shaker: Dual scalper + 4 primary NOV/Brandt-VSM300.
Dessander NOV/ Brandt-SR-3H-10CTX,
Desilter NOV/Brandt- SE-16GG-4CTX
Degasser NOV/Brandt-DG-10 Vacuum Degasser.
Mud cleaner,NOV/Brant – SE 20 – 20x3 Hydrocyclones
BOP’s stack 18 ¾’’ NXT BOP Assembly 15000 Shaffer
H2S service c/w two hydraulic valves. c/w 14” Poslock Operators
ANNULAR SHAFFER 18-3/4” 10K
Diverter system VETCO GRAY, 500 psi KFDJ hydraulic diverter system suitable for 49 ½’’ Rotary table 12’’ ID SCH80 overboad line to Port and Starboard sides c/w 14’’ ball vavle type.
Control system Hydraulic BOP control unit 2T20000-GTM/ Portable testing Unit
Choke and Kill 3 1/16’’ × 15000, H2S service w/ 2ea Manual Adjustable Chokes and 2 ea × Power Chokes
Storage Capacities
Fuel 3,880 bbls
Drill water 5,193 bbls
Potable water 2,053 bbls
Preload 64,677bbls (including dual purpose DW tanks) 42540 bbls (excluding dual purpose Drill Water tanks)
Brine/ base oil storage 994 bbls
Bulk Bentonite/ Barite 6000 ft3
Bulk cement 5100 ft3
Sack material 5,000 ft3
Power Equipment
Diesel Engines 5 ea. Caterpillar-3516C DITA, 1383B KW
AC Generator 5ea. KATO. 1505 Kw; 2150 KVA
Emergency engine Caterpillar 3508B DITA, 968 BKW
Emergency generator 850 KVA Lerroy Somer/LSAM50 50-680 KW
Cranes
Capacity main hookload 100,000 lbs @20ft and 24,200 lbs @120ft.
Capacity whip line 22,000 lbs @ 23.6ft and 21,600 lbs @126.6ft
Working radius Main hoist 20ft to 120ft; Auxilary hoist 23.6 ft to 126.6ft
Hoisting speed Main hoist.
SWL 50 T, speed 0-46 ft/minute
SWL 11 T, speed 0 -148 ft/minute
Jack-up Specifications
Legs Triangular Shape Lattice with 3 corner members
Leg Spacing Transverse 142ft, Longitudinal 129 ft
Spuds Cans Round shape with hard points (Bigfoot Design)
Spud can area 53ft Diameter
Jacking system Rack and Pinion, OTD 1000 FV, 12 Pinions per leg, total of 36 pinions,
capacity pinion jacking 1000 kips ( normal jacking)
1300 kips (preload jacking); 1,869 kips ( max. normal holding load)
Jacking speed up 1.50 ft/min, Jacking speed down 1.50 ft/min
Mooring Equipment
Winches Electric motor 2 speeds(w/rated speed: 735/1640rpm). Four ea Plimsoll
Corporation/ PC-EMW/SD-30/060. AC electric motor 40HP
Anchors Four each Delta Flipper Anchors @ 5 T.
Anchor lines Four length of 750 Meters +spare
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