DP / PM awareness courses have been created in response to the increasing concern by drilling operators and oil majors, that there is a shortage of experience and a diluted competency with regard to Dynamic Positioning, and the specific aspects of drilling.

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Dynamic Positioning &
Power Management
Awareness Training

2. Dynamic Positioning Training
 DP / PM awareness courses have been created in response to the
increasing concern by drilling operators and oil majors, that there is a
shortage of experience and a diluted competency with regard to Dynamic
Positioning, and the specific aspects of drilling.
 This is due to the very rapid expansion of the drilling market and the
global fleet of floating drilling assets.

3. OSV – Gulf of Mexico

4. Deepwater Drillship (MODU)

5. Semi Submersible MODU

6. History of DP in Drilling
Drillship Eureka – 1961
Multiple locations 9 – 1372 m (30-4,500 ft)

7. A Dynamic Positioning (DP) system is: (Section 2)
1. computer-based control system
2. automatically controls rig position and heading
3. calculated thruster forces
4. input from position reference systems and DP sensors
5. complex modelling and filtering techniques
DP capability applies to:
• fixed position
• follow track
• follow target
• pipelay, etc.

8. DP Axis’, Environmentals, & Thrusters

9. DP Thrust Allocation

10. 7 Elements of a Dynamic Positioning System
DP Operator
DP Controller
- Process stations
- I/O system
Thrusters Power System
- Power Generation
- Power distribution
- Power management
- Backup Power (UPS’)
Sensors
- Compass (Heading)
- Wind
- Vertical or Motion Reference Units
- Draft
- Current Sensor (if fitted)
Position Reference Systems
- GNSS – satellite systems
- Hydroacoustics
- Laser
- Microwave
- Tautwire
Operator Console
(Human-Machine Interface)
- HMI Computer
- Operator panel
- Display screen

11. GPS – Global Positioning System (USA)

12. Hydroacoustic Positioning
• USBL – only 1 transducer of rig hull –
baseline is between transducer head
elements.
• SBL – multiple transducers on rig hull –
baseline between transducers.
• LBL – array of transponders (aka beacons)
on seabed – baseline between
transponders

13. DP Sensors – Wind

14. DP Sensors - Gyrocompasses

15. DP Equipment Classes – IMO 645 (Section 5)

16. WSOG – Well Specific Operating Guidelines
Well Specific Operating Guidelines – Outline
Definition
GREEN ADVISORY YELLOW RED
Normal operations – all
systems fully functional
and operating within
acceptable performance
limits.
Advisory status –
approaching performance
limits or reportable alarm
status. Operations may
continue whilst risks are
being assessed. A failure
has occurred that does not
affect DP redundancy.
Actionable status – pre
defined performance limits
reached, component or
system failure resulting in
loss of redundancy.
The rig / vessel maintain
position although the
vessel has lost its
redundancy.
Emergency status – pre
defined operational or
performance limits
exceeded, component or
system failure resulting in
loss of control or position.
No.of
DGseach
Bus
As per FMEA and CAMO
Watch
Circle
Limits
Defined for each well and
location.

17. Driller’s Console – System Interfaces

18. PMS Display – DG Status

23. Dynamic Positioning &
Power Management Awareness Training
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