Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 1 of 10

PIPING FLEXIBILITY ANALYSIS

PIPING SYSTEM

SK-035

PREPARED FOR

By:Iv-Oil & Gas b.v

Rev. Description Date By Checked Appr’d by

R1 For Comments / Approval 20-07-2005 H.v.d.Weele R. Tjin M. van Neck

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 2 of 10

Rev. Description Date By Checked Appr’d by

R1 For Comments / Approval 20-07-2005 H.v.d.Weele R. Tjin M. van Neck

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 3 of 10

TABLE OF CONTENTS Page

APPENDIX 6 NOZZLE LOADS...................................................................................................................... 2

APPENDIX 7 relief LOADS............................................................................................................................ 2

INTRODUCTION................................................................................................................................................. 31.1 SCOPE OF WORK.............................................................................................................................. 31.2 APPLICABLE CODES......................................................................................................................... 31.3 REFERENCE DOCUMENTS..............................................................................................................3

2. SYSTEM DESIGN.......................................................................................................................................... 42.1 LINE DATA........................................................................................................................................... 42.2 CII CALCULATIONS............................................................................................................................ 42.3 LOAD CASES...................................................................................................................................... 52.4 ALLOWABLE STRESSES ASME B31.3..............................................................................................62.5 BLAST CALCULATIONS..................................................................................................................... 62.6 PIPE SUPPORTS................................................................................................................................ 72.7 FLANGE CONNECTIONS...................................................................................................................72.8 NOZZLE LOADS.................................................................................................................................. 7

3. STRESS ANALYSIS...................................................................................................................................... 83.1 COMPUTER MODEL........................................................................................................................... 8

4. ANALYSIS RESULTS................................................................................................................................... 94.1 STRESSES.......................................................................................................................................... 94.2 FLANGES............................................................................................................................................ 94.3 NOZZLE LOADS................................................................................................................................ 10

APPENDICES

APPENDIX 1 STRESS SKETCHES

APPENDIX 2 PIPE SUPPORT DETAILED DRAWINGS

APPENDIX 3 CONSTRUCTION ISOMETRICS

APPENDIX 4 MISCELLANEOUS CALCULATIONS

APPENDIX 5 CAESAR II PRINTOUT

APPENDIX 6 NOZZLE LOADS

APPENDIX 7 RELIEF LOADS

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 4 of 10

INTRODUCTION

1.1 SCOPE OF WORK

The purpose of this report is to demonstrate that piping system SK-035, part of De Ruyter topside piping, has inherent flexibility to accommodate displacements due to design conditions, without imposing any excessive loads on pipe supports and equipment nozzles. Furthermore the piping stress level has to satisfy the designated code.

1.2 APPLICABLE CODES

The governing code for piping design is:

ASME B31.3 Process Piping

For items not covered by the above-mentioned document, reference is made to the following codes and standards:

ASME VIII Rules for construction of pressure vessels, Division 1 and 2

ASME III Rules for Construction of Nuclear Facility Components, Division 1

ASME B16.5 Pipe Flanges and Flanged Fittings

WRC-107 Local stresses in Spherical and Cylindrical Shells due to External loadings

1.3 REFERENCE DOCUMENTS

144-002-PI-SPE-0002 Piping Classes Specifications

144-002-PI-SPE-0007 Plant Department Pipe Stress Design Criteria

144-111-PI-LST-0001 Plant Department Critical Line List

144-000-PR-LST-0001 Process Line List

144-000-ME-SPE-0004 Nozzle Loads on Equipment

144-002-HE-TNS-0007 Blast Design Strategy and Overpressures

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 5 of 10 2. SYSTEM DESIGN

2.1 LINE DATA

Functional design data, used for analysis, is summarised below:

Item/ Line No.

Pipe

Cla

ss

Cor

rosi

on

Allo

wan

ce

Des

ign

Pres

sure

Hyd

rote

st P

ress

ure

Max

imum

Des

ign

Tem

pera

ture

Min

imum

Des

ign

Tem

pera

ture

Ope

ratin

g Te

mp.

Med

ium

Den

sity

Flan

ge R

atin

g

Drawing Number

- mm barg barg °C °C °C Kg/m3 # -

8”-MG-200-006-B43-V B43 0 25 37.5 60 -25 50 0 300 200006-0501

12”-BD-410-007-A41-V A41 3 15 22.5 100 -11 60 0 150 410007-0501

12”-BD-410-010-A41-V A41 3 15 22.5 100 -11 60 0 150410010-0201/

0501

4”-MG-200-007-B43-V B43 0 25 37.5 60 -25 50 0 300 200007-0501

4”-MG-200-008-B42-V B42 3 25 37.5 75 -25 60 0 300 200008-0501

4”-MG-410-006-A41-V A41 3 15 22.5 100 -11 60 0 300 410006-0501

6”-BD-410-003-B42-V B42 3 15 22.5 100 -46 60 0 300 410003-0501

6”-BD-410-005-A41-V A41 3 15 22.5 100 -11 60 0 300 410003-0501

8”-BD-410-009-A41-V A41 3 15 22.5 100 -11 60 0 300 410009-0501

Note: Installation temperature assumed as -11°C throughout.

2.2 CII CALCULATIONS

The following CII calculations have been performed:

SK-035A-R1 : Design conditions

SK-035B-R1 : Blast conditions above deck at EL+26000

SK-035B2-R1 : Blast conditions below deck at EL+26000

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 6 of 10

2.3 LOAD CASES

The Functional Loads, used to generate the design load cases, comprise the following:

(W) Gravity load, due to self-weight of steel, contents and insulation.

(P1) Pressure load, due to design pressure.

(P2) Pressure load, due to operating pressure.

(T1) Thermal load due to maximum design temperature.

(T2) Thermal load due to minimum design temperature.

(T3) Thermal load due to operating temperature.

(T4) Thermal load due to cold pipework and vessel at operating temperature.

(D1) Displacements due to thermal expansion at design temperature.

(D2) Displacements due to thermal expansion at operating temperature (not used).

(WIN1..4) Wind loads based on 42m/s velocity at 10m (100 year - 3 sec’s gust). Loads are applied in +X for Case 1, -X for Case2, +Z for Case 3 and –Z for Case 4.

(F1) Relief force (see appendix 7)

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

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Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 7 of 10

2.4 ALLOWABLE STRESSES ASME B31.3

The allowable stresses are in compliance with the criteria specified in ASME B31.3.

Material Max temp [ºC ]

Material Properties [N/ mm²]

Allowable stresses [N/mm²]

SMTS SMYS Sh Sa (EXP) Socc (OCC)

A312 TP316 60 515 207138 207 183

Sustained Stress range Occasional

A333 GR.6 100 415 241138 207 183

Sustained Stress range Occasional

Note : Stress range is based on a stress reduction factor (f) of 1.

2.5 BLAST CALCULATIONS

The blast critical piping has been identified as per doc. no 144-002-HE-TNS-0007. All lines are blast critical.

Blast Load: 20 KN/m2

Shape factor: 0.9 (conservative approach resulting in approximately 20% safety margin).

The blast loads are generated using CII wind modeler. The loads are applied in four (4) directions as described in section 2.3, above. The environmental loads are not considered in blast calculations.

Blast loads are applied in two separate calculations: above deck at EL. +26000 (calc. SK-035B) and below deck EL+26000 (calc.SK-035B2).

Blast load cases used in calculation SK-035B are listed below. Definition of loads is as per paragraph 2.3 with exception of : (WIN1…4) Blast loads

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 8 of 10

2.6 PIPE SUPPORTS

All loads on supports are summarised in the Pipe Stress Analysis Output.

The loads include the friction forces. In general a friction coefficient of 0.4 is taken into account for friction between steel surfaces. In special cases where PTFE-sliding pads may be applied a friction coefficient of 0.1 shall be taken into account. The pipe support detail drawings are included in Appendix 2.

2.7 FLANGE CONNECTIONS

Flange connections are modelled in CAESAR II by anchoring together the rigid elements through a CNODE. This enables an easy check of the external loads using CII restraint output summary.

For B16.5 flange analysis, either of the following two methods has been used:

1. External loads acting on these connections are assessed using the ASME BPVC, Section VIII, Division 1, Appendix 2 in combination with Section III, subsection NC. Actual hub length is used.

2. External loads acting on these connections are assessed using the ASME Section III, Division 1, subsection NC-3658.3, ASME B16.5a Flanged Joints with High Strength Bolting, with yield stress at temperature, SY, substituted with B31.3 allowable stress, Sh.

Flange analysis is performed for maximum acting loads and calculations are performed for each flange size in the calculation.

2.8 NOZZLE LOADS

External loads acting on pressure vessel nozzles are compared against the allowable load sheet. In the event that the allowable loads are exceeded, manufacturer’s acceptance is obtained for the higher loads or WRC-107 calculations are carried out.

For pump nozzle loads, vendor allowable values have been used for assessment.

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 9 of 10 3. STRESS ANALYSIS

3.1 COMPUTER MODELFinite element computer models are developed based on the stress isometric included in Appendix 1.

Pipe stress program CAESAR II version 4.50, developed and marketed by COADE Engineering Software has been used for the analysis of the piping systems. This software package is a widely accepted tool to perform comprehensive stress analysis of complex piping systems.

The global co-ordinate system used in the computer model is indicated on the stress isometrics. Small differences in dimensions between the piping isometrics and the calculations may occur, but have no significant effect on the analysis.

The pipe routing of this system is shown below:

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 10 of 10 4. ANALYSIS RESULTS

4.1 STRESSES

The maximum calculated code stresses are summarized below and compared against B31.3 code allowable values. For blast case the calculation method set in document no144-002-PI-SPE-0007 was used. The calculated 3D stress intensities are compared with yield at operating temperature multiplied by 4/. Stress intensification factors for branches are set to “1” due to the fact that blast is not a cycling load.

All stresses are found to be within the allowable limits.

Table 5.1.1 Maximum Sustained Stress (SK-035A)

Case No. Node MaterialCode Stress

N/mm²

Allowable Stress

N/mm²

Ratio

11 1200 A333 GR.6 55.8 138 0.40

Table 5.1.2 Maximum Stress Range (SK-035A)

Case No. Node MaterialCode Stress

N/mm²

Allowable Stress

N/mm²

Ratio

27 1200 A333 GR.6 128.6 207 0.62

Table 5.1.3 Maximum Occasional Stress – Wind effects (SK-035A)

Case No. Node MaterialCode Stress

N/mm²

Allowable Stress

N/mm²

Ratio

26 1200 A333 GR.6 72.3 183 0.39

Table 5.1.4 3D Stresses – Blast effects (SK-035A)

Case No. Node Material3D Stress

N/mm²

Allowable Stress

N/mm²

Ratio

13 410 A333 GR.6 241.8 290 0.83

4.2 FLANGES

The integrity of the ASME B16.5 flanges, under the maximum external loads, has been checked as outlined in section 2.7. The external loads are found to be acceptable. Detailed flange calculations and the summary have been included in Appendix 4 where required.

Project No : 040176

PIPING FLEXIBILITY ANALYSIS

Client : Petro Canada

Project : De Ruyter Production Platform

Location : P11-b

Document number: 144-111-PI-CAL-035 Rev. no : R1 Page : 11 of 10

4.3 NOZZLE LOADS

The maximum external nozzle loads are listed below and compared with the allowable values. In case nozzle loads exceed the allowable values, the applicable cases are listed separate, showing only the maximum combinations for bending and / or torsion. In case nozzle orientations are different from the CII global axis, local axis are used and indicated on the isometric.

Note: Forces in [N] and moments in [Nm]

Table 4.3.1 HP Separator 200-VS- 01 / N5

Design Case (6)

Size Calc. No. Node No.

Fx Fy Fz Mx My Mz

10”-300# SK-035A-R1 101 -11423 -5724 -2205 -1569 -2775 -9588

Allowable values 6000 5500 6000 5500 10500 5000

Blast Case (8)

Size Calc. No. Node No.

Fx Fy Fz Mx My Mz

10”-300# SK-035B-R1 101 10295 -5478 -19268 -24180 -12477 -8737

Allowable values 12000 11000 12000 11000 21000 10000

Nozzle loads in both the design - and blast case for 200-VS- 01 / N5 are exceeding the allowable values. These nozzle loads are issued to vendor for approval (refer Appendix 6).

.

Project no : 040176

Client : Petro Canada

Project title : De Ruyter Production Platform

Location : P11-b

PIPING FLEXIBILITY ANALYSIS

Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 1

STRESS SKETCHES

Project no : 040176

Client : Petro Canada

Project title : De Ruyter Production Platform

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PIPING FLEXIBILITY ANALYSIS

Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 2

PIPE SUPPORT DETAILED DRAWINGS

HOLD FOR NODE:1029;1105;1120;1150;1205;1210;1240;1250;1280;2085;3000;3090

Project no : 040176

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PIPING FLEXIBILITY ANALYSIS

Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 3

CONSTRUCTION ISOMETRICS

Hold for: 200007-0501200008-0501410006-0501410003-0501410005-0501410009-0501

Project no : 040176

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Project title : De Ruyter Production Platform

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Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 4

MISCELLANEOUS CALCULATIONS

Project no : 040176

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Project title : De Ruyter Production Platform

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Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 5

CAESAR II PRINTOUT

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PIPING FLEXIBILITY ANALYSIS

Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 6

NOZZLE LOADS

Project no : 040176

Client : Petro Canada

Project title : De Ruyter Production Platform

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PIPING FLEXIBILITY ANALYSIS

Document number : 144-111-PI-CAL-035 Rev. no : R1

APPENDIX 7

RELIEF LOADS