this presentation will give brief idea about Drillship(Dhirubhai Deep-water KG2).And what kind of technologies are used to build this drill ship, its design,Drilling Equipment's,Draw works,Motion Compensator,Rotary Table,Top Drive,Mud pump,Shale shaker,Riser handling,BOP and subsea equipment.

1. Drillship(Dhirubhai Deep-
water KG2)
1
ABDUL BASITH BIN ABDULLA C
M TECH- PE(2017-2019)
SAP ID-500063791

2. Drillship(Dhirubhai Deep-
water KG2)
2

3. KG-2
 Drillship is another type of high valued-added vessel that is
designed for exploratory offshore drilling of new oil wells.
 Building a drillship requires the use of advanced shipbuilding
and offshore drilling technologies.
 It is equipped to drill wells to 35,000 ft (10,668 m) deep in up
to 10,000 ft (3,048 m) of water.
 It’s the first of two ultra deep-water new build drill ships.
 Transocean’s drillship Dhirubhai Deep-water KG2 has
begun operations In 2010.
 The dynamically positioned, double-hulled drillship features
NOV(National Oil well Varco) drilling packages.
 http://www.offshoreenergytoday.com/transocean-scoops-new-deals-for-one-
semi-sub-rig-and-two-drillships/ 3

4.  Design
 Drill ships are just one way to perform various types of
drilling. This function can also be performed by semi-
submersibles, jackups, barges, or platform rigs.
 KG-2 have the functional ability of semi-submersible drilling
rigs and also have a few unique features that separate
them from all others.
 It is designed to operate at ultra deep water conditions.
 KG-2 is a Samsung 10000 double hull Drillship.
 Constructing Shipyard
 In 1998, Samsung Heavy Industries (SHI) became the
first Korean shipbuilder that constructed a drillship.
4

5.  Double hull- it is a ship hull design and construction method
where the bottom and sides of the ship have two complete
layers of watertight hull surface.
5

6.  Classification
 ABS (American Bureau of Shipping) : it’s a guide for
building and classing of drill ships.
 A1E : It is a classification symbol that indicates compliance
with the hull requirements of the applicable ABS Rules, and
survey by ABS during construction of the unit.
 AMS : is assigned to self-propelled vessels and offshore
units for which the machinery, boilers and systems are found
satisfactory with regard to the ABS requirements.
 CDS : Indicates that the unit’s drilling system, including the
blowout preventer, has been designed, built and maintained
to the standards contained in the ABS Guide for the
Classification of Drilling Systems.
6

7.  ACCU
 It is assigned to a self-propelled MODU.
 Having the means to control and monitor
 the propulsion machinery space from a continuously
manned centralized control and monitoring station
installed within or adjacent to the propulsion machinery
space.
 This notation may be enhanced for unattended
operation, or ACCU, indicating the means to control and
monitor the propulsion machinery space is provided from
the navigation bridge and from a centralized control and
monitoring station installed within or adjacent to the
propulsion machinery space. 7

8.  DLA
 DLA is assigned to vessels which have been evaluated
using an enhanced structural analysis procedure and
criteria for calculating and evaluating the behaviour of hull
structures under dynamic loading approach.
 DPS-0, DPS-1, DPS-2 or DPS-3 :
 Indicates that a unit is fitted with a system of thrusters,
positioning instruments and control systems capable of
automatically maintaining the position and heading at sea
without external aid within a specified operating envelope
under specified maximum environmental conditions.
 The assigned numeral (0, 1, 2 or 3) indicates the degree of
redundancy.
8

9.  NBL, NBLES or NIBS
 It is assigned to a unit that complies with the relevant
section of the ABS Guide for Bridge Design and
Navigational Equipment/Systems.
 Dimensions
 748 ft. long x 137 ft. wide x 62 ft. deep
 Draft (d)
 d is the molded draft, and is the distance in meters (feet)
from the molded base line to the summer load line.
 39 ft. operating / 28 ft. transit
 Accommodation
 200 persons
9

10.  Displacement
 96,000 mt operating
 Variable Deck Load (VDL)
 VDL includes any item of weight that is not included in the
lightship of the basic vessel.
 Lightship is the basic weight of the MODU, including all
equipment considered permanent.
 This includes: Drilling Equipment, Power & Machinery,
Cranes, BOP & Subsea Equipment, Storage Capacities
 For KG1 22,046 st operating / 18,188 st transit
 1 st= 14 pounds (6.35029318 kg)
10

11.  Transit Speed-up to 12 knots
 Maximum Water Depth -12,000 ft. designed / 12,000 ft.
outfitted
 Maximum Drilling Depth - 35,000 ft.
11

12. Drilling Equipments
Drilling Equipment refers to the components
and ingredients that are used for the purpose
of Drilling.
 Derrick
 A derrick is a lifting device composed
at minimum of one guyed mast.
 NOV dual dynamic Derrick, size 200 ft.
high, with 80ft. long,60 ft. wide base.
 Hookload capacity
 The total force pulling down on the hook.
 2,000,000 lbs. static load capacity

13.  The steel cable (drilling line) used in draworks can be used to
hoist and lower hundreds of thousands of pounds of weight,
including lifting steel pipes out of boreholes.
 Types -AC, DC or mechanical operations.
 NOV SSGD 1000-5750 5,750 hp driven by Baylor CM
628motors rated at 1150 hp each with a maximum pull of 907 mt
with 14 inch lines.
 SSGD(Single Speed Gear driven Drawworks)
13
 Drawworks

14.  Motion Compensator
 Products that are designed to
compensate for the vertical movement of
offshore drilling rigs due to heave.
 Types-
o CMC-Crown Mounted Compensator.
o DLC-Direct Line Compensator.
o DSC-Drill String Compensator.
o N-Line Tensioner System.
 The CMC is mounted on top of the
derrick crown beams.
 CMCs are used on conventional
derrick/drawwork vessels.
 NOV CMC-1000-25 with 25 ft. maximum
stroke with a staticload of 2,000 kips
(locked) and a compensated load of
1,000 kips active heave compensation.
1kip=4.4482216 kN

15.  Rotary Table
 The revolving or spinning section of the drill floor that provides
power to turn the drillstring in a clockwise direction.
 The rotary motion and power are transmitted through the
Kelly bushing and the Kelly to the drillstring.
 1 x Varco BJ RST 60-1/2 inch hydraulic with a static load rating
of 1,000 mt and 45,000 ft.-lbs. of continuous torque.
15

16. 16

17.  Top drive
 Top drive is a
mechanical device on a
drilling rig that provides
clockwise torque to the drill
string to drill a borehole.
 It is an alternative to the
rotary table and
kelly drive.
 It is located at the swivel's
place below the traveling
block and moves vertically
up and down the derrick.
17

18.  HPS-1000 Top Drive
 It has been delivered to more drill ships and deep water
high specifications than any other top drive in the world.
 This top drive’s dual motor high speed and high torque
performance .
 North Sea through the Gulf of Mexico and to the Far
East.
 It uses in most advanced drillship and Ram Rigs to
highly qualified and simpler jack-up packages.
 he HPS-1000’s flexibility to enhance any deep water
driller application has placed it in a class by itself and
has placed it among the world’s most recognizable
leaders in high performance top drives. 18

19.  Specifications of HPS-100
 1000 ton hoisting capacity (API 8C)
 2 x 1,150 hp AC motors (2,300 hp combined)
 7,500 PSI working pressure
 Max Continuous Torque 95,000 ft-lbs
 Max RPM: 260
19

20.  Tubular Handling
20
 Hydratong MPT TE-1190 Iron Roughneck. 2 x Hydrarackers
model HR IV, capable of handling stands of tubulars from 31/2
inch to 13-5/8 inch, and singles from 3-1/2 inch to 20 inch
multi-purpose tong concept ensures safe and effective make-
up of drill pipe, collars and casing.
 Better and more accurate torque is
ensured due to optimized triple grip
design providing less box
deformation and control of the
torque parameters.
 The torque wrench is self-centering
with a flexible suspension system,
eliminating alignment problems.

21.  Mud Pumps
 A mud pump is a reciprocating
piston/plunger device designed
to circulate drilling fluid under
high pressure (up to 7,500 psi
(52,000 kPa) ) down the drill
string and back up the annulus.
 NOC provides smooth Triplex
performance and high efficiency
from the 14-P-220 Mud Pump.
 4 x National Model 14-P-220
triplex pumps, each driven
by 2 xNOV AC traction
motors rated to 1,350 hp
each.
21

22. 22

23.  HP Mud System
 Rated for 7,500 psi by NOV
 High-Pressure Mud Pump Systems Boost Well Drilling
Efficiency & Depth Range.
23

24.  Solid Control
 It is a technique used in a drilling rig to separate the solids in
the drilling fluids that are crushed by the drill bits and carried
out of the well surface.
 6 x Axiom AX-1 shale shakers
6 x Axiom AX-1 shale shakers
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 Shale shakers are
components of drilling
equipment used oil
and gas drilling.
 They are used to
remove large solids
(cuttings) from the
drilling fluid ("Mud").
http://www.axiomprocess.com/prod
uct/ax-1-shaker/

25. 25

26.  Riser Handling
 NOV RS45-90HS riser handling machine for handling 90 ft,
 Joints of riser complete with tailing arm.
 https://www.youtube.com/watch?v=JuxNCzLJC9U
26

27. POWER AND
MACHINERY
27

28. INTRODUCTION
 Power and Machinery's are very important and it’s a necessity
in offshore operations.
 In order to operate in safe condition, we need:
A. Main Power System.
B. Backup Power system.
C. Power Distribution System.
28

29.  Main power
 In Transocean GK-1,For main power generation they used
Wartsila diesel Engine.
 6 x Wartsila W16V40 diesel engines rated at 8000 kW
each,driving 1 X ABB/AMG 7,290 kW generator.
29

30.  Backup Power
 1 x STX Cummins Marine diesel engine rated to 1,900 kW
driving 1 x Stamford PM734E1 1,350 kW at 1,800 rpm
generator.
 Power Distribution
 ABB generator protection.
 This system used to Distribute the power throughout
the drill ship.
30

31. STORAGE CAPACITIES
31

32.  Fuel oil: 47,758 bbls
 Liquid mud : 6,000 bbls. Active / 6,000 bbls. Reserve
 Base oils : are used to manufacture products
including lubricating greases, motor oil and metal processing
fluids. Different products require different compositions and
properties in the oil. One of the most important factors is the
liquid’s viscosity at various temperatures.
 5,031 bbls
 Brine : is a high concentration solution of salt in water. In
different contexts, brine may refer to salt solutions ranging
from about 3.5% up to about 26%
 5,800 bbls.
32

33.  Drilling water: 18,064 bbls.
 Sack Storage: 10,000 sacks.
 potable water: water that is safe to drink or to use for food
preparation, without risk of health problems
 6,667 bbls
 Bulk Material: 31,384 cu.ft.
33

34. BOP & SUBSEA
EQUIPMENT
34

35. BOP
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BOP Rams
Specifications
• Model: 18-3/4” 20,000psi
• 15-1/4” Operator: 19.5/19.6
Gallons
• (Open/Close) – 3,000
psi max
• 23” Operator: 53.2/52.4
Gallons
• (Open/Close) – 5,000
psi max
• Centralizing Shear Rams
• Pipe Rams (Multiple sizes)
• Multi Rams (4-1/2” – 6-5/8”)
Features
• Boltless Doors
• Replaceable Steel Seats
• Automatic Locking System
• Ram Position Indicators
• Double redundancy
https://www.nov.com/Segments/Rig_Systems/Offshore/Drilling_Pressure_Control/Subsea_Systems/Blowout_Preventers/
RAM_Blowout_Preventers/20k_RAM_BOP/20k_RAM_BOP.aspx

36. BOP
36
BOP Annulars Specifications
• Annular BOP Also called as
Spherical BOP
• 18-3/4” 10,000 psi pressure
• Made by Shaffer, wholly owned
subsidiary of NOV
• The NXT design further decreases
weight and height by eliminating
the flange connection below the
annular and directly connecting
bolts through the base of the
annular to the ram body.
https://www.nov.com/Segments/Rig_Systems/Land/Drilling_Pressure_Control/Blowout_Preventers/Spherical_BOPs/Sph
erical_BOPs.aspx

37. BOP HANDLING
 NOV BOP Gantry crane rated at 200 mt capacity
 NOV BOP trolley rated at 420 mt.
37
https://www.youtube.com/watch?v=KXD
3kMaCpdg
• This vedio will give very clear idea
about bop handling.

38. BOP
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Choke Manifold

39. RISER
39
Marine Riser Pipes Specifications
• Shaffer marine riser systems from
shallow water to ultra deep drilling
applications, including riser
• The NOV Riser is 21 inch OD
and is commonly manufactured
in 90ft. 75ft, and 50ft lengths.
Various shorter lengths are offered,
and are often referred to as pup
joints.
• Riser wall thickness options are
5/8, 11/16, 3/4, 13/16, 7/8 and
15/16. Thickness is selected
according to pressure
requirements.
http://www.nov.com/Segments/Rig_Systems/Offshore/Drilling_Pressure_Control/Subsea_Systems/Diverter_and_Riser_
Systems/Riser_Joints/Riser_Joints.aspx
• Shaffer Class H FT-H 21 inch
marine riser with a length of 90 ft.
and 15,000 psi 4-1/2 inch choke and
kill lines.

40. RISER
40
Riser Fill Up Valve Telescopic Joints
Riser Running Tool

41. RISER
41
Diverter
Specifications
• Shaffer NOV 21-1/4 inch 500 psi with 18 inch flow.
• Internal Diverter assembly and Diverter housing, is
used to maintain and divert wellbore fluids and
gases during your drilling operations
• In the case of an emergency, Diverter has the
ability to control low-pressure kicks and to divert
dangerous gases away from the rig through
overboard valves and piping attached to the
Diverter housing.
• Steel segments to strengthen rubber sealing
element
• The diverter system is also supplied with a flex
joint assembly, complete with a riser flange
adapter which attaches to the inner barrel of the
telescopic joint.
http://www.nov.com/Segments/Rig_Systems/Offshore/Drilling_Pressure_Control/Subsea_Systems/Diverter_and_Riser_
Systems/Diverter/Diverter.aspx

42. RISER
42
Riser Tensioner
Specifications
• Tension capacity: 2.500.000lbs – 4.800.000lbs
• Stroke 40ft – 65ft
• Advanced and proven Riser Anti Recoil system
• Certification according to ABS, DNV
https://www.nov.com/Segments/Rig_Systems/Offshore/Motion_Compensation/N-Line_Tensioner_system.aspx

43. X Mas Tree Handler
43
• Xmas tree carrier/trolley is used to
transfer the Xmas tree within the
moonpool area between the well center
and parked positions. Stroke 40ft – 65ft
• The carrier/trolley works in conjunction
with the Xmas tree crane, Christmas tree
skid and guidance units, creating a
complete handling Unit
• 2 x Xmas tree trolley rated at 120
tons, used in KG2

44. STATION KEEPING /
PROPULSION SYSTEM
44

45. Station Keeping
45
 Dynamic
Positioning
• Kongsberg-Simrad system for
SDP-32 operations.
• K-Pos System is used.
• Triple-redundant DP control
systems comprising a triple-
redundant dynamic positioning
system controller unit and three
identical operator stations.
• DP31 provides a direct interface to
the propellers, thrusters and
rudders, and includes the
necessary interfaces to power
plants, position-reference systems
and sensors.

46. Station Keeping
46
 Dynamic
Positioning
Control Centre
https://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/F85938EB2AE9BD86C1256A48004161A8?OpenDocume
nt
• Detect local interface errors in each
controller.
• Detect sensor errors such as compass drift
and sensor breakdown.
• Ensure that all three computers use the
same data as a basis for calculations of
command signals and that the command
signals are equal from the computers.
• If one system component fails, the other
components will not be affected.

47. Station Keeping
47
 Thrusters
• 6 x Rolls Royce Aquamaster thrusters
with ABB Sami Megastar 5,500 kW AC
drives rated azimuthing fixed pitch.
• Standard azimuth thruster units with input
powers from 250 - 5000kW to deliver a
bollard pull ranging from 11 to over 170
tonnes. Modular design allows the
configuration, mounting type and size to
be closely matched to user requirements.
• Powered by ABB SamiMegastar gives a
total of 5500W.

48. CRANES AND OTHER
INFORMATION
48

49.  Cranes
 Precise and efficient handling
and lifting sequences where
the load pendulum effect has
been eliminated.
 4 x National electro-Hydraulic
cranes .
 with 140 ft. booms.
 Rating of 85 mt at 59 ft.
radius.
49

50. HELIPAD
 Rated for Chinook BV 234 helicopters.
 89ft diameter helipad
50

51. THE END
51