CAPÍTULO III. Diseño y plan estratégico
3. Estudio de mercado
Appendix 3
Glossary of Terms and List of Abbreviations
ADS - Atmospheric Diving Suit, enabling diver access to depths greater than w450m
Centre of Rotation-The reference spot within the vessel
AoD - Age of Data. The latency of the corrections within the DGPS system
c.p. - Controllable pitch (propeller)
Cycloconverter - A variable-speed a.c. drive system
Artemis - A microwave position reference system using one shore and one shipboard transceiver, giving range and bearing information
CyScan - A laser-based position reference system manufactured by GCS
Autotrack - A DP function allowing the vessel to
follow a predetermined track DARPS - Differential Absolute and Relative Positioning System, a DGPS- related PRS used by shuttle tankers and FPSOs
AUV - Autonomous Underwater Vehicle Depthtransponder - An acoustic transpomder giving depth data
BOP - Blow-out preventer. A component of the wellhead "stack"
DGPS - Differential GPS (see GPS)
C/A Code -The Coarse Acquisition code used with the GPS system
C/R - Centre of Rotation
DNV - det Norske Veritas, the Norwegian Classification Society
DoD-The US Department of Defence
DOP - Dilution of precision Central Meridian - The datum meridian for
measurement of Easting in a Transverse Mercator projection
DP - Dynamic Positioning
DP OPERATOR'S HANDBOOK
Appendix 3 111 Glossary
Appendix 3
Glossary of Terms and List of Abbreviations
ADS - Atmospheric Diving Suit, enabling diver access to depths greater than w450m
AoD - Age of Data. The latency of the corrections within the DGPS system Artemis - A microwave position reference system using one shore and one shipboard transceiver, giving range and bearing information
Autotrack - A DP function allowing the vessel to follow a predetermined track
AUV - Autonomous Underwater Vehicle BOP - Blow-out preventer. A component of the wellhead "stack"
C/A Code - The Coarse Acquisition code used with the GPS system
C/R - Centre of Rotation
Central Meridian -The datum meridian for measurement of Easting in a Transverse Mercator projection
Centre of Rotation-The reference spot within the vessel
c.p. - Controllable pitch (propeller)
Cycloconverter - A variable-speed a.c. drive system
CyScan - A laser-based position reference system manufactured by GCS
DARPS - Differential Absolute and Relative Positioning System, a DGPS- related PRS used by shuttle tankers and FPSOs
Depthtransponder - An acoustic transpomder giving depth data
DGPS - Differential GPS (see GPS) DNV - det Norske Veritas, the Norwegian Classification Society
DoD - The US Department of Defence DOP - Dilution of precision
112 Appendix 3
DP Operator's Handbook
DP(AA) - The Lloyd's Classification for DP vessels of Equipment Class 2
DP(AAA) - The Lloyd's Classification for DP vessels of equipment Class 3
DP(AM) - The Lloyd's Classification for DP vessels of Equipment Class 1 ESD - Emergency Shutdown and Disconnection
procedure for offshore loading shuttle tankers ETO - Electrical and Technical Officer
Fanbeam - An optical Laser radar position reference system
FMEA - Failure Modes and Effects Analysis FOC - Full Operational Capability of the GPS system, declared on 17th July 1995
fp - Fixed pitch (propeller)
FPSO - Floating Production, Storage and Offtake Vessel
FSVAD - Flag State Verification and Acceptance Document
Galileo - The proposed European satellite navigation system
GNSS - Global Navigation Satellite System GPS - The Global Positioning system of satellite navigation
G-Vec - A Relative GPS position reference system manufactured by MDL
HAIN - Hydroacoustic-aided Inertial Navigation
HDOP - Horizontal Dilution of Precision, a measure of accuracy in the GPS and DGPS systems
HiPAP -The Kongsberg Maritime High Precision acoustic positioning system HPR - Hydroacoustic Position Reference HSE OD - The Health and Safety Executive Offshore Division
Appendix 3 113
transference of data in marine navigational equipment
OIM - Offshore Installation Manager
OLT-Offshore Loading Terminal. A buoy, articulated tower or rigid tower used by shuttle tankers for loading crude oil for export
PLEM - Pipeline end manifold
PME - Position Monitoring Equipment (synonymous with PRS, see below)
PPS -The Precise Positioning Service from the GPS system, only available to approved military users
PRC - Pseudo-Range Corrections provided within the DGPS system
PRS - Position Reference System Pseudo-range - The basic navigation measurable of GPS. Also referred to asPSR Relative GPS - A position reference used by shuttle tankers (see DARPS)
Responder - A form of transponder where the interrogating signal is conducted by hard-wire rather than through water
Riser Angle mode - The mode by which DP control is exercised in deep water drilling applications
RMS - Riser Management System
ROV - Remotely Operated Vehicle, usually an unmanned submersible
SA - Selective Availability
SD - Standard Deviation, or Variance in data from a position-reference system
Simplex - A non-redundant DP system, single computer
SPS - The Standard Positioning Service from the GPS system
114 Appendix 3
DP Operator's Handbook
THE NAUTICAL INSTITUTE
Stinger - A heavy gantry deployed at the stern of a pipelay vessel, supporting the pipe as it is laid.
Used in the S-lay method STL - Submerged Turret Loading.
Surge - Vessel movement if the fore-and-aft direction
SV - Space vehicle or satellite (GPS etc) Sway - Vessel movement in the transverse direction
Taut Wire - A position reference system consisting of sensors detecting the length and angles of a tensioned wire leading to a weight on the sea bed
TMR -Triple Modular Redundancy; the Voting concept of redundancy
TMS - ROV tether management system Tp -Transponder, used as part of an HPR system
Transducer - The acoustic probe on the vessel's bottom used as part of the HPR system
Transponder - A sea bed beacon used with HPR (seeTp)
Trencher - A sea bed crawler vehicle intended to trench and bury a previously laid pipeline Trimcube - A specialist taut wire sensor used in trenching applications
Triplex - A DP system having three
computers providing redundancy through voting logic
Variance - A measure of the spread of successive positions derived from a PRS
Voting - A system of redundancy using triplicated systems and a "two- out-of-three"
vote on all critical values
UPS - Uninterruptible Power Supply
USBL - Ultra Short Baseline, a principle used with HPR
UTM - The Universal Transverse Mercator projection and co-ordinate system VRS - Vertical Reference Sensor, a device giving accurate values for vessel Roll and Pitch values
VRU-Vertical Reference Unit - see VRS VSD - Variable Speed Drive
WGS 84 - The World Geodetic Spheroid upon which the GPS system is based
Yaw - Vessel rotation about the vertical axis;
Change of heading
Index 115
Assessment 15,19,20, 23,36,98, 100, 103, 107
ADS (atmospheric diving suit) 38 Auto-Approach function 13,38,111
Azimuth thrusters 16, 87,88, 89, 90,91 Azipod 89
Cable repair 43 Capability plot 15,16 Central meridian 60,111 Checklists 51, 54
Common-mode failure 27,81,86,102
Communications 3, 51, 53, 54, 65 Consequence analysis 28, 29 Construction vessel 15, 38,45
Contingency planning 48 positioning system) 35, 68, 70,111.113 Datum 10,55,60,69, 74, 111
Dead reckoning mode 61 Degraded status 15,47,48,108 DGPS 6,10,19, 27, 32, 39, 50, 52, 55, 58, 59, 60, 63, 64, 65, 66, 67, 69, 83, 86.102.111.112.113
Diesel electric 6,28, 29, 87, 93,94,95, 97 Differential GPS 58, 61, 63,111
Dive control 36
Dive support 36, 53,91,112
Diving bell 37, 53,91 Diving operations 53, 91,109
Diving umbilical 36, 38, 53, 75, 76 DP Induction Course 99
DP Operator's Certificate 3,99,100, 101,108 DQI (differential quality index) 55, 59, 67,112 Dredging 10,40
Drift-off calculation 16
Drilling rig 12, 39, 74, 79,88,112 Drillship 1,12,18, 31,39, 46,71,74,75 DSV (dive support vessel) 53, 91,112
116 Index
Equipment class 6,21, 22,23,24, 25, 26, 27, 29, 38, 48, 58, 80, 86, 90, 95, 96,
100, 101,112
Escape routes 48,49, 50, 51, 55 ESD (emergency shutdown and offtake unit) 10, 13,14,18, 31, 33, 35, 36, 67, 68, 70, 80, 82,111,112 FSVAD 23,112
G
Generator 26, 28, 29, 48, 55,82,91, 94, 95, 96
GPS 6, 10, 35, 58,61,62, 63, 64, 65, 66, 67, 68, 69, 78,111,112,113,114
Guidance Ltd iv, 69, 80 G-vec 68, 112 Gyro 25, 26, 55, 56, 68, 70, 72, 81, 97 Gyro compass 5,6, 24,25, 27, 28,107
H
HAIN (hydroacoustic aided inertial navigation) 78,112
HDOP (horizontal dilution of precision) 55, 59, 63, 65, 67, 69, 112
Association) 23, 55, 67,101,102, 103, 105,109,110, 111 Organization) 22, 23, 24, 26, 29,101, 109
Index 117
M
Mathematical model 4,15,17, 51,61 MCR (machinery control room) 48, 50, 113 MDL iv, 68, 69, 112
MRU (motion reference unit) 17, 24, 25, 30,55, 72, 84,107,113
Multifix 68
Multipath 63, 66,68 Mobile transponder 75 Multi-user acoustic system 78-79 Moonpool taut wire 84
Pipe tensioner 18,41,95 Platform supply vessel 31,38,80
Position dropout 61 Power distribution 29, 94,96
Power management 26, 30,96-97, 108 Power systems 23,30,93
Riser angle mode 12-13,46,113 Riser management system 13,113 Rockdumping 10
ROV (remotely operated vehicle) 9,10, 19, 36-38,40,43, 55, 75, 76, 79, 83, 85,113,114
Rudders 6,87-88,89
S
SA (selective availability) 66, 67,113 Saturation diving 37,38
Sea force 18 Seatex 68
Set point 3,4,6,8,14, 27, 33, 36, 61, 86, 90, 92
118 Index
SPS (standard positioning service) 63, 113 SSBL (super short baseline) 72-73 Standard deviation 58,113
Standing orders 56 Stinger 15,41,42,114 STL (submerged turret loading) 31, 34, 35,114 Sunspot activity 67
SV (space vehicle) 62, 63,64,65, 66, 67, 69, 114
Taut wire 6,17,18,27,43, 51, 55,60, 81,82-85,86, 97,114
Thruster failure modes 92
Thrusters 23, 24, 25, 26, 87-92, 93, 95 Training 98-106
Transducer 74, 76, 77,114 Transponder 74-75, 80 Trenching 40,41-42,114
Triple modular redundancy 5, 24,114 Triplex 24,25, 114
Tunnel thrusters 32, 87,89, 91
u
UPS (uninterruptible power supply) 30, 97, 114 USBL (ultra short baseline) 71, 72-73, 78, 79, 114
UTM (universal transverse mercator) 8, 12, 60-61,78, 114
V
Variance 58, 59,113,114 Variance based weighting 58-59 Voith-Schneider propeller 87 Voting 5, 24, 27, 58, 86,102,114 VRS (vertical reference sensor) 17, 23, 97, 114
VSD (variable speed drive) 5, 87,114
w
Watchkeeping 3,47-56,98, 99,100, 101,107,108
WGS 84 60, 69, 114 Wind feed-forward 17
Windsensor 17,18,19, 24, 25, 30, 55, 97,107
Work approach 47, 51