Robustness Scoring

Platform
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Score
Scores
150
99
83
27
0

A

B

C

D

E

RSR
0.5
0.8
1.2
1.6
2.0
Downgraded by Significant Damage Install Date older than 1963 and Number Legs < 3
Date Installed:
Legs:
Transverse Bracing:
Longitudinal Bracing:
Grouted:

Time in service: year

FPH POF: 1 / (using green line)

Mooring line failure PoF is based on “system failure”, i.e. failure of 2 mooring lines. Methodology is agreed upon with BSEE and can be described by the following three equations:

CBL = c1 x [ 1.58 x vw-100 ]2

(8-line system failure, 2 per quadrant)

CBL = c1 x [ 1.37 x vw-100 ]2

(12-line system failure, 3 per quadrant)

CBL = c1 x [ 1.29 x vw-100 ]2

(16-line system failure, 4 per quadrant)

CBL = Catelogue Break Load

vw-100 = Wind speed for 100-yr event

c1 = Constant relating wind speed to load

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Characteristic Data

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Hazard Curve Data: Not Complete
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Hazard Curve

Platform
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MLLW:
Metocean data is used

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    Default factors
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Chart
Normalized Total Force FPH
Normalized Total Force SH
Normalized Wave in Jacket FPH
Normalized Wave in Jacket SH
Lower and Upper Bound Points
Wave in Deck Point
Selected Final Point
Actual RSR
Points


Chart
FPH by Wind Speed
Output
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Hurricane Period Max Shear Force (kips) Normalized Shear Force (kips) Air Gap (ft) Crest Elevation (ft) Standard Error Inundation (ft) BOCD (ft) Current (ft/s) Water Velocity (ft/s) Total Load (kips) Normalized Total Load (kips) Normalized WIJ (kips)
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Risk Matrix


Full Population Hurricane

Consequence of Failure
 High
Medium
Low
6
< 1/2500		 5
> 1/2500		 4
> 1/1000		 3
> 1/300 		 2
> 1/100 		 1
> 1/25  
Probability Of Failure

Sudden Hurricane

Consequence of Failure
 High
Medium
Low
6
< 1/2500		 5
> 1/2500		 4
> 1/1000		 3
> 1/300 		 2
> 1/100 		 1
> 1/25  
Probability Of Failure
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Metocean Criteria

Platform
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Used Grid Point:
Metocean Full Population Hurricane
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Metocean Sudden Hurricane
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Characteristics
Platform
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is a(n) installed in of water. It is a permanently moored system with mooring lines per quadrant, with a deck height of . This structure falls in the Exposure Category (Consequence) and has an estimated POF of 1/ .
OSTS Wells Production Pipelines
Robustness
Score
Scores
150
99
83
27
0

A

B

C

D

E

RSR
0.5
0.8
1.2
1.6
2.0
Downgraded by Significant Damage Install Date older than 1963 and Number Legs < 3

Time in service: year

FPH POF: 1 / (using green line)

Mooring line failure PoF is based on “system failure”, i.e. failure of 2 mooring lines. Methodology is agreed upon with BSEE and can be described by the following three equations:

CBL = c1 x [ 1.58 x vw-100 ]2

(8-line system failure, 2 per quadrant)

CBL = c1 x [ 1.37 x vw-100 ]2

(12-line system failure, 3 per quadrant)

CBL = c1 x [ 1.29 x vw-100 ]2

(16-line system failure, 4 per quadrant)

CBL = Catalogue Break Load

vw-100 = Wind speed for 100-yr event

c1 = Constant relating wind speed to load

Hazard Curve
    Final Point FPH (RSR/POF): /     Final Point SH (RSR/POF): /
Wind Speed, 1-min average (mph)
     Point FPH (POF):      Override POF:
 
Risk

COF as Reported by Operator

Consequence
 High FPH SH FPH SH FPH SH FPH SH FPH SH FPH SH
Medium FPH SH FPH SH FPH SH FPH SH FPH SH FPH SH
Low FPH SH FPH SH FPH SH FPH SH FPH SH FPH SH
6
< 1
2500
 5
> 1
2500
 4
> 1
1000
 3
> 1
300
 2
> 1
100
 1
> 1
25
Probability Of Failure
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Example: 2641.jpg for platform with CPXID 264 and STN 1.



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Origin Platform
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Pipeline

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Production

Platform
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Upload files

See an example here: ExampleTemplate.xlsx

Download Format Conversion Tool here: Conversion_Tool.xlsm


Upload file MUST have one of the following SHEETNAME :

  • Operators
  • Platforms
  • Platform Characteristics
  • Pipelines
  • Production
  • OSTS Inspection Data
  • Wells

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Pipelines Origin/Destination Change Logs      Null Origin/Destination Platforms Logs

Last Pipeline upload :

Consequence of Failure


Exposure Category Matrix

Consequence Category
Life Safety Category
 C-1 C-2 C-3
S-1 Manned-nonevacuated - - - H = L1
S-2 Manned-evacuated - - - M = L2
S-3 Unmanned - - - L = L3
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CoF Data

Environmental
Sour Gas (ppm of H2S)
NO DATA
Liquid Hydrocarbon Production (BOPD)
Liquid Hydrocarbon Throughput (BOPD)
NO DATA
Gas Production (MMCFD)
Gas Throughput (MMCFD)
NO DATA
Storage Tank (BBLs)
<= 10 miles from coastline
API
Completions
Pieces of Production Equipment
Water Depth (ft)
Maximum Pipeline Size
Gas (in)
Oil (in)
Condensate (in)
Total Fleet Production
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Hazard Curves Recalculation

Recalculate curves older than (leave it empty to run not processed or updated platform only):

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  • Calculation results
    CPXID
    Status
    Message