The document discusses different types of oil rigs used on land and offshore. It describes four main types of offshore rigs: jack-up rigs which can operate in shallow waters up to 400 feet; semi-submersibles which can operate in waters up to 2,000 feet but require marine risers and have limited cargo capacity; drilling ships which can operate in ultra-deep waters over 2,000 feet but are less stable; and platform rigs which are installed on fixed marine platforms and can support multiple rigs. It also provides details on key components of land rigs, including the derrick, crown, rotary table, and slips.

1. RiGsAhmed Zakaria Ali

2. Rig Types
LAND RIGS
OFF SHORE RIGS
1.Jack - up Rigs.
Those rigs drill in water
depths up to 400 ft
1- Provide a fixed
platform.
2- does not need a marine
riser or subsea stack.

3. OFF SHORE RIGS)
2. SEMI
SUBMERSIBLES.
1- can work in water up to
2000 ft.
2- has a god safety
records.
Disadvantages:
1- need marine risers and
subseastack.
2- has limited cargo
capacity.
3. Drilling Ships.
1- can work in ultra
deep water; more than
2000 ft.
2- self propelled.
Disadvantages:
1- need marine risers
and subseastack.
2- not as stable as
jackups and semisub.

4. 4. Platform Rigs.
A rig installed on a fixed
marine plate
Can support
rigs.
form.
several
kelly
This is the topmost joint in
the drill string and is 40-45
feet in length. It is commonly
square or hexagonal. The
kelly passes through the
rotary table and transmits the
table rotation to the drill
string via the kelly bushing.

5. Land Rig Components
1- Mast or Derrick.
((is the framework-tower type
of support usually associated
with oil well drilling)).

6. Land Rig Components
1.1- Monkey Board.
((the platform which support
he stands)).
1.1- V-Door.
((a triangular opening on the
front of the derrick to allow
drill pipes to be
the cat walk)).
pick up from
2- Crown.
2.1-
2.2-
2.3-
2.4-
Crown Sheaves.
Drilling Line.
Travelling Block.
Hook.

7. Land Rig Components
3- Elevators.
Two elevators are used
in pipe lifting and not
used while drilling
4- Substructure.
This is the support on
which the derrick rest

8. Land Rig Components
5- Rotary Table.
1. Transmits the rotation
to the drill string.
2. Suspend the drill
string during
connections & trips
•
•
Slips
These devices are
used to hold the
weight of the drill
string when it is not
supported by the
hook (during
connections or
tripping time).