Safety Management in Nfld Offshore - Memorial University · PPT file · Web...
Transcript of Safety Management in Nfld Offshore - Memorial University · PPT file · Web...
Offshore Drilling Operations
Jeff BugdenCanada-Newfoundland Offshore Petroleum Board
Outline Project Management & EngineeringProject Management & Engineering Equipment and SystemsEquipment and Systems Typical Offshore Drilling ProgramTypical Offshore Drilling Program Operational ConsiderationsOperational Considerations
Atlantic Basins
TERRA NOVA FACILITIESCONCEPTUAL LAYOUT
Source: Petro-Canada, 1997
Ice Bergs
Glory Holes
Glory Holes - Dredging
Terra Nova FPSO
HIBERNIA PRODUCTION SYSTEM
Drilling Installations
Nomenclature
BHABHA
MudloggingMudlogging
SCSSVSCSSV
BOPBOP
LWDLWD
CTCT
KOPKOP
MWDMWD
FishingFishing
TopdriveTopdrive
Xmas treeXmas tree
SidetrackingSidetracking
LoggingLogging
MDTMDT
KickKick WellheadWellhead
Part 1 - Project Management & Engineering Considerations Drilling InstallationDrilling Installation Well DesignWell Design Contracting and ProcurementContracting and Procurement Casing, Cementing, Drilling FluidsCasing, Cementing, Drilling Fluids
Drilling Installation
Drilling Installation
Geological Prospect (well depth, pressures)
Environmental Factors (weather, ice, water depth, station keeping)
Regulatory Requirements
Solids Control
Pipe Handling Eqpt
Well Control Equipment
Rated Drilling Depth
Power Requirements (hoisting equipment, mud pumps, rotary system)
Conceptual Well Design
Well Design
Geological Objectives
Evaluation Objectives
Drilling Hazards
Formation Pressures
“Problem” Zones
Offset Well Data
Time Estimate
Cost Estimate
$$ BUDGET $$
Casing Program
Casing Design
Geological Objectives
Evaluation Objectives
Testing Program
Overpressure Zones
Fracture Pressures
Lost Circulation Zones
Detailed Design
(Burst, Collapse, Tensile, Wear, H2S)
Grade, Weight, Connectors, Setting Depth
Regulatory Requirements
Cementing Program
Cementing
Temperatures
Fracture Pressures
Lost Circulation Zones
Zone Isolation
Well Abandonment
Well Control
Detailed Design
Cement tops, recipes, slurry properties, additives, displacement rates, centralization, equipment &
procedures
Regulatory Requirements
Drilling Fluids Program
Drilling Fluids
Wellbore Stability
Formation Protection
Formation Evaluation
Equipment Compatibility
Lost Circulation Zones
Well Control
Recommendations
Type, desired physical and chemical properties, solids control requirements
Torque and Drag
Directional Drilling Program
Directional Program
Current Targets
Future Targets
Formations
Faults
Dip
Torque and Drag
Recommendations
Type of Curve, KOP, BUR, DOR, BHA, Directional Drilling Assembly, MWD Equipment
Bit Program
Bit Program
Lithology (well logs)
Compressive Strength
Abrasiveness
Stickiness
Offset Bit Records
Economics
Recommendations
Bit Types (Roller Cone or PDC), Hydraulics (Nozzles), Motor/Turbine Drilling, WOB, RPM
PDC/Roller Cone Bits
Part 2 - Equipment & Systems
Circulating SystemCirculating System Motion Compensation EquipmentMotion Compensation Equipment Drilling AssemblyDrilling Assembly Hoisting SystemHoisting System Well Control SystemWell Control System
Motion Compensators
Marine Riser
Drilling Assembly
Drawworks
Crown Block
Top Drive
Drill Floor
Iron Roughneck
Mud Pumps
Drillers Cabin
Well Control System - BOP Stack
BOP Control System
Part 3 - Typical Drilling Program
Assumptions: Semisubmersible Anchored 100 metre water depth
Typical Drilling Program
Position rig.Position rig. Run Anchors.Run Anchors. Pretension mooring lines.Pretension mooring lines. Survey seafloor with ROV.Survey seafloor with ROV.
Typical Drilling Program
Run TGB.Run TGB. Spud well.Spud well. Drill 36” (914mm) hole to 200 metres.Drill 36” (914mm) hole to 200 metres. Run and cement 30” (762mm) Run and cement 30” (762mm)
conductor pipe with PGB and low conductor pipe with PGB and low pressure wellhead housing.pressure wellhead housing.
Typical Drilling Program
Drill 26” (660mm) hole to 500 Drill 26” (660mm) hole to 500 metres.metres.
Run and cement 20” (508mm) Run and cement 20” (508mm) surface casing with high pressure surface casing with high pressure wellhead housing.wellhead housing.
Run BOP stack and marine riser.Run BOP stack and marine riser.
Typical Drilling Program
Drill 17 1/2” (445mm) hole to Drill 17 1/2” (445mm) hole to 1,500 metres.1,500 metres.
Run wireline logs.Run wireline logs. Run and cement 13 3/8” Run and cement 13 3/8”
(340mm) casing.(340mm) casing.
Typical Drilling Program
Drill 12 1/4” (311mm) hole to 3,000 Drill 12 1/4” (311mm) hole to 3,000 metres.metres.
Core any hydrocarbon intervalsCore any hydrocarbon intervals Run wireline logs.Run wireline logs. Run and cement 9 5/8” (244mm) Run and cement 9 5/8” (244mm)
casing.casing.
Typical Drilling Program
Drill 8 1/2” (216mm) hole to 3,500 Drill 8 1/2” (216mm) hole to 3,500 metres.metres.
Core any hydrocarbon intervalsCore any hydrocarbon intervals Run wireline logs.Run wireline logs. Run and cement 7” (178mm) liner (if Run and cement 7” (178mm) liner (if
well is to be tested).well is to be tested).
Part 4 - Operational Considerations Heavy WeatherHeavy Weather
Marine ForecastsMarine Forecasts Operational LimitsOperational Limits
Ice BergsIce Bergs T-TimeT-Time Ice ManagementIce Management
Forecasts
Wind SpeedsWind Speeds WavesWaves HeaveHeave Pitch and RollPitch and Roll
A low pressure trough that passed the forecast waters last night will continue moving eastward into the North Atlantic this morning. Following it, a ridge extending northward from a high centre currently near Sable Island will track eastward and pass through thearea this evening. Winds will diminish to variable light as the high centre nears and change to moderate southerlies behind it. A newfrontal trough developing over western Ontario is expected to work eastward across Newfoundland late Friday or early Saturday andwill pass through the site near noon on Saturday. Strong SSE to SSW winds will prevail over the forecast waters as this frontaltrough approaches. To the south, a weak wave will develop and move northeastward pushing an associated warm front towards thearea. Mist and fog are expected to develop late on Friday under these systems.
MARINE WEATHER SITE FORECAST
SCT/BKN SCT/BKN FEW/SCT FEW/SCT SCT/BKN BKN/OVC BKN/OVCOVC
OCNLOBSC
OVCOCNLOBSC
6+ 6+ 6+ 6+ 6+6+
OCNL2 - 5
6+VRBL1 - 5
1 - 5OCNL
1/4 - 1/2
1 - 5OCNL
1/4 - 1/2
NIL NIL NIL NIL NIL OCNLMIST
VRBLMIST
MISTOCNL R-OCNL F
MISTOCNL R-OCNL F
SKY COVER
WEATHER
VISIBILITY (nm)
WARNINGS IN EFFECT: NONESYNOPSIS
with a long range forecast for the following 3 days.
Forecast for the Glomar Grand Banks at Hebron M-04 near 46 34 N 48 31 W issued by OCEANS Ltd., St. John'sat 0600Thursday May 4 2000 Saturday , valid until 0930 NDTNDT
VALID DATE / TIME
0930/12Z 1530/18Z 2130/00Z 0330/06Z 0930/12Z 1530/18Z 2130/00Z 0330/06Z 0930/12ZTIME (NDT/UTC)
THU MAY 04
THU MAY 04
THU MAY 04
FRI MAY 05
FRI MAY 05
FRI MAY 05
FRI MAY 05
SAT MAY 06
SAT MAY 06DAY / DATE
WIND WAVES
PRIMARY / SECONDARY SWELL
COMBINED SEA
NIL NIL NIL NIL NIL NIL NIL NIL NIL
2 2 1 1 2 4 5 4 4
10 METRE MEAN (kt)Anemometer MEAN (kt)Anemometer MAX (kt)
14 11 7 13 14 22 23 22 2020 17 13 19 20 28 28 28 26
SIG HEIGHT (m)PERIOD (s)
1.2 1.0 0.3 0.5 0.6 0.9 1.2 1.0 1.04 4 2 3 3 3 4 4 4
DIRECTION (true)HEIGHT (m)
PERIOD (s)
240/270 240/270 340/240 340/300 330/290 320/290 310 310/150 150/200
1.5/1.2 1.5/1.2 2.0/1.0 1.8/1.2 1.5/1.2 1.5/0.8 1.3 1.0/1.0 1.0/1.08/7 8/7 9/7 9/8 8/8 8/8 8 7/7 7/7
SIG HEIGHT (m)MAX HEIGHT (m)
2.3 2.2 2.3 2.2 2.0 1.9 1.8 1.7 1.74.0 3.5 4.0 4.0 3.5 3.0 3.0 3.0 3.0
TEMPERATURE (C)PRESSURE (mb)
FREEZING SPRAY
11 9 5 11 12 15 15 15 13WIND SPEED
330 310 VRBL 190 170 150 150 200 230WIND DIRECTION (t)
1030 1031 1031 1030 1028 1024 1018 1016 1014
LONG RANGE FORECAST
Phone: (709) 753 2482 / (709) 753 5788; Fax: (709) 753 5972 / (709) 753 5211 (from offshore); Email: [email protected]
1.5 - 2.0 1.5 - 2.5 2.0 - 2.5 2.5 - 3.5 2.0 - 3.0 1.5 - 2.5BCMG GOOD GOOD OCNL FAIR FAIR OCNL POOR BCMG GOOD GOOD GOOD
VALID DAY / DATE
VALID PERIODWIND DIRECTION (t)10 m WIND SPEED (kt)COMB WAVE HGT(m)VISIBILITY
SAT MAY 06 SUN MAY 07 SUN MAY 07 MON MAY 08 MON MAY 08 TUE MAY 09PM AM PM AM PM AM
W - SW BCMG NLY N TO NE NE NLY N TO NW NW TO SW10 - 15 10 - 20 10 - 20 20 - 30 15 -25 10- 25
J BNext Regular Forecast issued: Forecast number . 06040500Prepared by: AO.1800 NDT TODAY
48 HOUR FORECAST WIND SPEEDS
0
10
20
30
40
50
60
70
80
0930/12ZTHU
MAY 04
1530/18ZTHU
MAY 04
2130/00ZTHU
MAY 04
0330/06ZFRI
MAY 05
0930/12ZFRI
MAY 05
1530/18ZFRI
MAY 05
2130/00ZFRI
MAY 05
0330/06ZSAT
MAY 06
0930/12ZSAT
MAY 06
SPEE
D (K
TS)
10m Flag
STORM
GALE
Max Wind
Anemo
10m Wind
Wind Speeds
SPECTRAL HEAVE PREDICTION FOR DAYS 1 AND 2;LINEAR REGRESSION HEAVE FORECAST FOR DAYS 3, 4, & 5
at Standard Operating Draft; Rig heading 290oT
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
0930/12ZTHU
MAY 04
2130/00ZTHU
0930/12ZFRI
2130/00ZFRI
0930/12ZSAT
2130/00ZSAT
0930/12ZSUN
2130/00ZSUN
0930/12ZMON
2130/00ZMON
0930/12ZTUE
Date / Time
HEA
VE
(m)
Maximum Predicted HeaveForecast HeaveMinimum Predicted heave
Heave
OPERATION
TotalHeave
m
Pitch & RollSingle Amplitude
deg,
Offset BallJoint Angle
deg.Drilling/Tripping 5.0 5.0 4.0
Casing/Cementing 3.0 4.0 3.0
Running BOP 1.5 2.0 N/A
Hang-Off 5.0 5.0 4.0
Disconnect Riser 6.0 N/A 8.0
Logging 4.0 N/A 4.0
Well Testing 3.0 4.0 3.0
Survival Conditionincluding 1/3 anchor chaintension
De-ballast to survival draft of 17m to increase airgap
Evacuation when 90% of vessels design criteria is expected to bereached
Jeanne d’Arc Basin Operations - Floating Operations Manual
Safe Operational Limits
T-Time
Ice Management
Concluding Comments
THE END