All types of rigs are covered

1. TYPES OF RIGS
SHAILESH ARUN GADKARI
MSC PETROTEC
SINHGAD COLLEGE OF SCIENCE

3. LAND RIGS

5. DEFINITION
 A Land Rig is a drilling rig which is specially designed to
drill holes on onshore locations
 Some of the major components of a land rig are:
 Mud tanks
 Mud pumps
 Mast / Derrick
 Top drive also known as rotary table
 Drill string
 Draw works
 Primary power generation equipment & auxiliary power
generation equipment.

6.  Each rig type serves a different purpose and Key
differentiation factors in drilling rigs are:
 Lifting capacity
 Horse power
 Number of mud pumps and its power and ability to
circulate drilling fluid
 Size

7.  While mobile rigs have a limited use, light
conventional rigs are the most widely used.
 However, with shale drilling, multilaterals, directional
wells, HP/HT and sour wells, the use of hi-tech and
high horse power rigs has been gaining momentum
and the demand for these heavy rigs have been
increasing.
 In addition, ambient temperatures (e.g. deserts) can
place more pressure on land drilling rig efficiency.

9. During the exploration stage.
 Rigs are used to drill exploration wells and 'wildcat'
wells in locations with the potential for hydrocarbon-
bearing geological structures, after being identified
from analysing the results from various geological
studies and the seismic survey.
 Most of the time, vertical wells are drilled to ensure
safety and well stability, and to acquire quality and
sufficient subsurface data/knowledge.

10. During the appraisal stage
 Rigs are used to drill several wells to understand flow
rates, the reservoir dynamics and the size and limits of
the reservoir in order to confirm the assumption that
hydrocarbons can be economically produced.

11. During the development stage.
 Rigs are used to drill wells (at a much higher level of
activity) to the depth of a productive zone of the
reservoir.
 Wells in this point could be vertical, horizontal or
deviated, and could be drilled on a grid or on a pad.

12. During the production stage
 Rigs are used to drill more wells, also known as infield
drilling or repair/work over existing wells.
 Depending on the complexity, a smaller work-over rig
may be used for a work-over programme and well
repair or production enhancements or for other well
treatments

13. LAND RIG
 The main features of land rigs are portability and
maximum operating depth.
 Land rigs are built so that the derrick can be moved
easily and reused for drilling new holes.
 The various rigs components are skid-mounted so
that the rig can be moved in units and connected
easily.
 The jackknife, or cantilever, derrick is assembled on
the ground with pins and then raised as a unit using
the rig-hoisting equipment.

14. CREW MEMBERS CAN MOVES LAND RIG ON TRAUCK,TRACTOR,HELICOPRTER,
HEAVY ROLLING GEAR
SMALL LAND RIG MOVE TO PREITY SIMPLE COMPARING TO ULTRAHEAVY LAND
RIG
The price of oil rigs for land drilling in the U.S. typically starts at around $18 million to
$20 million and rises to around $25 million or more

15. DUTY DEPTH
FEET METER
LIGHT DUTY RIG 3OOO-5000 1000-1500
MEDIUM DUTY RIG 4000-10000 1200-3000
HEAVY DUTY RIG 12000-16000 3500-5000
ULTRAHEAVY DUTY RIG 18000-25000 5500-7500

18. video
 LAND RIG MOVE
 ACTION IN LAND RIG
 CONSTRUCTION OF LAND RIG

19. TYPES OF OFFSHORE RIG

20. DEFINITION OF OFFSHORE RIG
An offshore rig is a large structure on or in water with
facilities to drill wells, to extract and process oil and
natural gas, and to temporarily store product until it can
be brought to shore for refining and marketing.

21. CATEGORY DESCRIPTION
 Drilling rigs are some of the most important pieces of
oilfield equipment
 They are used during a number of stages throughout
oil and gas fields' lifecycles. See the summary below
for descriptions of how offshore rigs are used
throughout oil and gas fields' lifecycles

23. During the exploration stage
 Rigs are used to drill exploration wells and ‘wildcat'
wells for potential hydrocarbon-bearing geological
structures after various geological studies and seismic
surveys have identified locations in which these
structures could be placed.
 Most of the time, vertical wells are drilled to ensure
safety and well stability and to acquire sufficiently
high-quality subsurface data and knowledge.

24. During the appraisal stage.
 Rigs are used to drill several wells to understand flow
rates and reservoir dynamics and to determine the size
and limits of the reservoir in order to confirm the
assumption that hydrocarbons can be produced
economically.

25. During the development stage.
 Rigs are used to drill wells (at a much higher level of
activity) to the depth of a productive zone of the
reservoir
 At this point, wells can be vertical, horizontal or
deviated, and they can be drilled on a grid or on a pad.

26. During the production stage.
 Rigs are used to drill more wells, also known as
repair/work-over wells, to fix existing wells
 This practice is also known as infield drilling
Depending on the complexity of the job, a smaller
work-over rig may be used for a work-over program to
repair wells, enhance production or provide other well
treatments.

27. TYPES OF OFFSHORE RIG

28. The key differentiation factors in offshore drilling rigs are as
follows:
Rated water depth
Drilling depth
Leg length (for jack-ups)
Accommodation
Lifting capacity
Top drive system
Number of mud pumps and the power and ability to circulate drilling fluid

30. Offshore drilling are divided into two types:
Fixed structure types and Floating structure
types.

31. JACKUP RIGJACK UP RIGS

34. Jack-up rig
 The rig's floating platform is towed into position by
barges, then lowers its support legs down to the sea
floor, raising the rig above the water's surface.
 The platform can then be adjusted to varying heights
along its tall legs, essentially using the same principle
employed by a tire jack (hence the name).

35.  Jack-up rigs were traditionally used in shallow water
because it wasn't practical to lower their legs to great
depths
 Jack-up rigs can only work in water depths less than
the length of their legs, typically limiting operations to
less than 150 meters/500 feet.

36. VIDEO
 1)JACKUP RIG MOVE
 2)HOW DOES IT WORK JACKUP RIG

37. GRAVITY BASED STRACTURE
GRAVITY BASED STRUCTURE

39. Gravity type platforms
 As the name suggests, the concrete gravity structure is
reliant on its own weight, and the capability of the seabed
to maintain that weight, in order to remain stable.
 They are designed particularly with storm conditions in
mind. Like other types of structure, they come in multiple
design variations, and may be made out of concrete, steel,
or a combination of the two.
 Concrete gravity structures were first used in the Ekofisk
Field off Norway, although the design principle had
previously been used in lighthouse construction

40.  Concrete gravity structures can be used in water
depths up to 160 meters and with weights of over
300,000 tonnes.

41. BERKUT OIL RIG
 The Berkut Oil Rig is the biggest oil rig in the world,
weighing in at a staggering 200,000 tons. Located in
the Sea oN Russian Pacific Coast just north of Japan,
the rig is expected to extract 4.5 million tons of oil per
year.
 It has been built to exploit the vast oil reserves of the
Arkutun-Dagi field, which spreads 60km from the
Russian coast and contains recoverable oil reserves
estimated at 72 million tons.

42.  Berkut, which means ‘Golden Eagle’ in Russian, is
believed to have cost around $12 billion to build.
 45 wells are being drilled including 28 oil producing
wells, 16 water injection wells and a cutting re-
injection well.
 The oil extracted at Berkut will be processed at the
Chaivo onshore processing facility before being
transported by pipeline to DeKastri oil export
terminal, one of the largest oil terminals in the Far
East.

43.  The platform is built on a gravity-based structure (GBS)
which is fixed to the seabed at a depth of 35 metres.
 The GBS was built at Vostochny Port in eastern Russia and
used an estimated 52,000m³ of concrete and 27,000 tons of
steel reinforcing bar
 The rig has been designed to withstand temperatures as
low as -44 degrees Celsius
 This protective belt will also brace the structure against
waves up to 18 metres high. The rig can also survive
earthquakes.

45. VIDEO
 GBS STRUCTURE

46. Compliant tower
Compliant tower

48. Compliant tower:
 Compliant-tower rigs are similar to fixed platforms,
since both are anchored to the seabed and hold most
of their equipment above the surface.
 But compliant towers are taller and narrower, and
unlike fixed platforms, they sway with the wind and
water almost as if they were floating.
 This is possible because their jackets are broken into
two or more sections, with the lower part serving as
the base for the upper jacket and surface facilities.

49.  the compliant tower system is strong enough to
withstand hurricane conditions.
 water depths ranging from 1,500 to 3,000 feet (450 to
900 m).
 At present the deepest is the Chevron Petronius
tower in waters 623m deep.
 The first tower emerged in the early 1980s with the
installation of Exxon's Lena oil platform.

50. VIDEO

51. Submersible Rig

52. Submersible Rig
 Submersible drilling rigs are similar to barge rigs but
suitable for open ocean waters of relative shallow
depth.
 The drilling structure is supported by large submerged
pontoons that are flooded and rest on the seafloor
when drilling.
 After the well is completed, the water is pumped out
of the tanks to restore buoyancy and the vessel is
towed to the next location
 A Submersible rig is a larger version of a posted barge
and is capable of water depths of 18ft to 160ft.

53. Semisubmersible rig

55. Semisubmersible Rig
 Semisubmersible Rig. They are the most common type of
offshore drilling rigs, combining the advantages of
submersible rigs with the ability to drill in deep water.
 The semisubmersible rig does not rest on the seafloor.
This rig is a floating deck supported by submerged
pontoons and kept stationary by a series of anchors and
mooring lines, and, in some cases, position-keeping
propellers.
 Semi-submersible can be used in depths from 200 to 1800
meters.

56. Types Of Semisubs
 Based on the way the rig is submerged in the water,
there are two main types of semisubmersibles: bottle-
type semisubs and column-stabilized semisubs.

57. video

58. tension leg platform rig

60. tension-leg platform (TLP)
 Tension-leg Platform. It consists of a floating surface
structure held in place by taut, vertical tendons
connected to the seafloor.
 These long, flexible legs allow for significant side to
side movement, with little vertical movement.
 normally used for the offshore production of oil
or gas, and is particularly suited for water depths
greater than 300 metres (about 1000 ft) and less than
1500 metres (about 4900 ft).
 Use of tension-leg platforms has also been proposed
for wind turbines

61. SEA STARS PLATFROM

62. Seastars platforms
 Seastars platforms are mini Tension Leg Platforms of
relatively low cost, used in water depths between 200
and 1000 meters.
 They can also be used as utility, satellite or early
production platforms for larger deep water discoveries.

63. SPAR PLATFROM

66. Spar Platform
 Spar platforms are among the largest offshore
platforms in use.
 These huge platforms consist of a large cylinder
supporting a typical fixed rig platform. The cylinder
however does not extend all the way to the seafloor,
but instead tethered to the bottom by a series of cables
and lines.
 The large cylinder serves to stabilize the platform in
the water, and allows for movement to absorb the force
of potential hurricanes.

67.  A typical spar platform in the Gulf of Mexico has a 130-
foot-wide cylinder, and about 90 percent of its overall
structure is hidden underwater.
 Spar cylinders are available at depths up to 3,000 feet,
but existing technology can extend this to about
10,000 feet, making them one of the deepest-drilling
types of offshore rigs in use

68. VIDEO

69. DRILLSHIP

70. DrillShips
 Drillships are most often utilized for extremely deep
water drilling at remote locations.
 A “floater” like the semisubmersible, a drillship must
maintain its position at the drilling position by
anchors and mooring lines, or by computer-controlled
dynamic positioning equipment.
 Most drillships have greater storage capacity than
other types of rigs, allowing efficient operation at
remote locations.

71.  drillships have extensive mooring or positioning
equipment, as well as a helipad to receive supplies and
transport staff.
 drillships work in water depths ranging from 2,000 to more
than 10,000 feet (610 to 3,048 meters).
 Drillships are differentiated from other offshore drilling
units by their easy mobility. While semisubmersible rigs
can also drill in deep waters, drillships are able to propel
themselves from well to well and location to location,
unlike semisubs, which must rely on an outside transport
vessel to transfer them from place to place.

72.  Transocean, Pride, Seadrill, Frontier Drilling and
Noble are a few of the companies that own and operate
drillships globally

73. VIDEO

74. thankyou