Interview Powerpoint Presentation

8/10/2019 Interview Powerpoint Presentation

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To complement the theoretical principle studied in theclassroom and be able to apply the understandinggained in the design and analysis of subsea risers usingindustry-based software like FLEXCOM.

API 17J: Specification for Unbonded Flexible Pipe

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Get an approximate riser configuration

Using the values gotten from the approximate riserconfiguration, the static model is setup, analyzed andoptimized.

Offsets and environmental conditions such as currentare applied to the static model so as to run the dynamicanalysis.

The materials inherent damaging pull, burst pressure,

contact pressure and bending strain is verified againstthe operational conditions.

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Point No.

Section 1 Section 2 Section 3 Hang off Angle

Start End Start End Start End Vessel Contact

X (m)

0.00

91.899

91.899

125.949

125.949

200

9.64o

Y (m) 0.00 61.194 61.194 77.55 77.55 140.00

Length (m)

130

60

150

5.12

5.12

5.12

5.12

5.12

5.12

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Parameters Obtained Unit

Riser

10

Static Envelope of Curvature

Sagbend

(/m)

0.163

Hogbend 0.063

Hang off angle at vessel contact (Degrees) 9.66

Sagbend Elevation (m) 49.36

Hogbend Elevation (m) 91.72

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Parameters

Risers

10"

Far Near

Hogbend (/m) 0.163 0.169

Sagbend (/m) 0.0625 0.065

Hang-off Angle At Vessel Contact (Degrees)

6.95

6.95

Hogbend Elevation (m)

119.5

111.6

Sagbend Elevation (m)

46.2

42.1

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Parameters

10 Riser

Inherent Operation

Damaging Pull (KN) 2959.27 2803.87

Burst Pressure (MPa)

42.796

40

Contact Pressure (MPa) 9.756

4

Minimum Bend Radius of Internal Sheath (m)

1.82

2.22

Minimum Bend Radius of External Sheath (m) 2.21 2.22

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10

Static Offset Offset + Current

Near offset analysis

Effective Tension (kN)

59.66

62.63

62.07

Maximum Curvature

(/m)

0.168

0.16

0.113

Far offset analysis

Effective Tension (kN)

58.04

55.65

56.36

Maximum Curvature

(/m)

0.163

0.238

0.23

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Licensed To:

University of Aberdeen.

Flexcom

Version 7.7

Project Title

10-Inch Far DynamicFigure Title

Snapshot Of Effective TensionFigure N

1

Date

09/05/2013

Document N Revision

0 50 100 150 200 250 300 350

Curved Distance along Structure

0

10000

20000

30000

4000

0

50000

60000

Effective

Tensiona

t3.200

secs

Element set 1; Effective tension

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