Hydrostatic Test Report - Regulatory Document Index

Hydrostatic Test Report

CH2M Project Document No. 680046-PL-RPT-0014

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© 2017 CH2M HILL ALWAYS REFER TO CH2M HILL VO SITE FOR CURRENT VERSION

Westover Segment Replacement (Line 10)

DETAILED DESIGN - PIPELINE

Prepared for:

Enbridge Pipelines Inc. Edmonton, AB

AFE Number: 1442022A90 Document Number: 680046-PL-RPT-0014

CH2M Project Number: 680046

Issued For Revision Date By Checked Approved Client Notes

Review A Dec 13, 2016 ATK DP/NA CS

Construction 0 April 12, 2017 DP CW/NA CS

Construction 1 July 13, 2017 DP NA CS c/l v3.2

Construction 2 Oct 3, 2017 NA CS CS

Enbridge Pipelines Inc. Line 10 Westover Segment Replacement Program

Order XO-E101-001-2017 Condition 22 - Pressure Testing Program

Filed October 6, 2017

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Table of Contents

1. Introduction ............................................................................................................................. 3 2. Design Philosophy .................................................................................................................... 3 3. Definitions ................................................................................................................................ 3 4. Design Input / Basis .................................................................................................................. 4 5. Testing Criteria ......................................................................................................................... 6

5.1 Mainline...................................................................................................................................6 5.2 Horizontal Direction Drill (HDD) Segment Pre-Test ................................................................6 5.3 Mainline Fabricated Assemblies .............................................................................................7 5.4 Station Piping ..........................................................................................................................8 5.5 Mainline Concrete Coated Sections ........................................................................................8

6. Mainline Hydrostatic Testing Plan Development ........................................................................ 8 6.1 Mainline Hydrostatic Test Contractor Requirements .............................................................8 6.2 Installation Strategy and Test Section Selection .....................................................................8 6.3 Mainline Hydrostatic Testing Pressure Calculations ...............................................................8 6.4 Hydrostatic Test Heads ...........................................................................................................9 6.5 Valve Section Pipe, Final Tie-in Pipe and Security Pipe ...........................................................9 6.6 Test Media Sourcing and Disposal ..........................................................................................9

6.6.1 Mainline Test Water................................................................................................ 10 6.6.2 Pre-Test Water ........................................................................................................ 10

7. Hydrostatic Test Acceptance and Documentation .................................................................... 10 8. Post-Hydrostatic Test Activities ............................................................................................... 10

8.1 De-Watering ......................................................................................................................... 10 8.2 Drying ................................................................................................................................... 11 8.3 Corrosion Inhibitor/Biocide .................................................................................................. 11

9. Safety and Protection of Property and the Environment .......................................................... 11 Appendixes ........................................................................................................................................ 12

Appendix 1 – V3.2 Westover Segment Replacement Pipeline Hydrotest Schematics ..................... 12 Appendix 2 – 680046-PL-CAL-0008 Hydrostatic Test Calculations ................................................... 12




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1. Introduction

Enbridge Pipelines Inc. (Enbridge) is currently undertaking detailed design activities on the Westover Segment Replacement Project (the Project). The Project includes 35 km of NPS 20 pipeline for the transport of low vapour pressure (LVP) product between Enbridge’s existing Westover Terminal and Nanticoke Junction. The Project also includes the installation of four mainline block valve (MLBV) sites.

This report describes the Project’s hydrostatic testing plan. This report establishes Intended Maximum Operating Pressure (Intended MOP) and associated qualifications pressures along the length of the pipeline in accordance with CSA, NEB, and Enbridge requirements with supporting calculations and a proposed Hydrostatic Test Diagram. Target test pressures are calculated to ensure the Project receives regulatory approval to operate at the Intended MOP. Test media sources, filling, dewatering, and disposal locations are also discussed.

2. Design Philosophy

The following standards, specifications, and reports were used in designing the hydrostatic testing plan for the Project:

• CSA-Z662-15, Oil and Gas Pipeline Systems; • Enbridge Construction Specification PCS-005 (2015), Pipeline Hydrostatic Testing; • Enbridge Construction Specification FCS-014 (2016), Pressure Testing – Facility Piping; • Enbridge Engineering Standard D06-101 (2015), Piping Design and Construction Mainline; • Enbridge Engineering Standard D06-103 (2016), Crossing Design, Mainline; • Technical Specification Deviation Record TSDR-127 (2017), MLBV assemblies test pressure • National Energy Board Act, Current to October 26, 2016; • National Energy Board Onshore Pipeline Regulations, Current to October 26, 2016; and • Department of Fisheries and Oceans Canada, Fisheries Act, Current to October 26, 2016.

3. Definitions

A brief review of terminology used in this report is provided below for clarity.

Qualification Pressure (QP): As defined in CSA Z662-15, Section 8.7.6.4, in reference to the point specific profile, the minimum pressure achieved over the duration of the strength test at each point in the test section.

Maximum Operating Pressure (MOP): As defined in CSA Z662-15, the maximum pressure at which the pipe is qualified to be operated, established through hydrostatic testing as the lesser of the qualification pressure divided by 1.25 and the Design Pressure.




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Design Pressure / Intended MOP: As defined within CSA Z662-15, Section 4.2.1.1. The pressure which Enbridge intends to submit for regulatory licensing as the MOP for a segment of pipeline. For the Project, the Intended MOP is a point specific pressure along the pipeline route set by a discharge pressure of 9,930 kPa at Westover Terminal.

Theoretical Design Pressure: The limiting pressure for a segment of pipeline as calculated according to CSA Z662-15, Section 4.3.5.1 to which that segment can be operated. Note that the Design Pressure can be set to be less than the Theoretical Design Pressure by the designer.

Maximum Test Pressure: The upper limit on the test pressure range for a segment of pipeline, established to safely set the boundary on stress imposed on the pipe and limit the potential for damage.

Minimum Test Pressure: The lower limit of the test pressure range for a segment of pipeline, established to impose sufficient stress on the pipe to adequately prove the integrity of the segment.

Target Test Pressure: The target hydrostatic testing pressures along a test section, within the maximum and minimum bounds as defined above.

Critical Low Point: The point on a pipe section that will produce the highest hoop stress, taking into account elevation, diameter, wall thickness, and SMYS of the pipe.

4. Design Input / Basis

This report was developed to establish, for regulatory licensing, the hydrostatic test plan for the Project pipeline in consideration of the Project design parameters and applicable specifications and standards. The input parameters for this report are listed below in Table 1.

Table 1: Input Parameters for the Hydrostatic Testing Report

Variable Value Data Source Other/Comments

Outside Diameter of Pipe (mm) 508 Design Basis Memorandum

Pipe Grade (MPa) 483 Design Basis Memorandum

Design Temperature (°C) 65 Design Basis Memorandum

Minimum Restraint Temperature (°C)

-5 Design Basis Memorandum

Discharge Pressure at Westover Terminal (kPa)

9,930 Design Basis Memorandum

Design Factor, F 0.8 Clause 4.3.6, CSA Z662-15




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Variable Value Data Source Other/Comments

Location Factor, L 1.0 Clause 4.3.7, CSA Z662-15 (Table 4.2)

Product is LVP

Joint Factor, J 1.0 Clause 4.3.8, CSA Z662-15 (Table 4.3)

ERW pipe

Temperature Factor, T 1.0

Clause 4.3.9, CSA Z662-15 (Table 4.4)

Design temperature is less than 120°C

Mainline Pipe Wall Thickness (WT) (mm)

7.23 Wall Thickness Design Report

Mainline Pipe WT to be used in all mainline calculations for most conservative results.

HDD and Valve Assembly Heavy Wall Pipe WT (mm)

11.13 Wall Thickness Design Report

Elevation Profile - Version 3.2 Centerline Profile

Flange Rating PN150 Design Basis Memorandum

Tie-in spool at Nanticoke Junction is PN100

Density of Test Media (kg/m3) 1000 Density of water

Minimum Strength Test % SMYS

(at highest point in test section)

100% SMYS PCS-005 – 10.1.2/10.1.3

Target Strength Test % SMYS

(at critical low point in test section)

107% SMYS PCS-005 – 10.1.2/10.1.3

Maximum Strength Test % SMYS 110% SMYS Clause 8.7.4.2, CSA Z662-15

Enbridge provided CH2M with the elevation profile for Version 3.2 of the Project centerline. The profile was used to develop a zero flow Intended MOP profile based on changes in elevation along the route, using a discharge pressure of 9,930 kPa at Westover Terminal and a conservative fluid density of 1000 kg/m3. This scenario was chosen to ensure all points in the pipeline were qualified to a pressure greater than they would experience in the highest pressure scenario, which is a full lock-in scenario.

The Intended MOP profile and the pipeline parameters were then used to calculate Minimum, Maximum, and Target Test Pressures for each test section, based on ensuring the hydrostatic test achieved qualification pressures high enough for the Project to meet regulatory requirements for approval to operate at the Intended MOP and to meet the requirements of CSA Z662-15.

The following sections discuss the Project specific details and requirements for this report.




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5. Testing Criteria

5.1 Mainline

The mainline hydrostatic strength and leak tests shall meet the requirements of CSA Z662-15, Enbridge Specification PCS-005, and all other documents referenced in Section 2. Where conflicts exist between documents, the more stringent requirement shall take precedence. A summary of the testing criteria for a mainline test section is shown below in Table 2.

Table 2: PCS-005 Mainline Testing Criteria

Strength Test Leak Test Minimum Test

Pressure Maximum Test

Pressure Minimum Duration

Minimum Test Pressure

Maximum Test Pressure

Minimum Duration

Lesser of: • Pressure

corresponding to a pipe stress of 100% SMYS

• 150% of the rating of any valve or flange

• 125% of the intended MOP at the highest point

Lesser of: • Pressure

corresponding to a pipe stress of 110% SMYS

• Pressure that produces a deviation of 0.2% from straight line proportionality on a pressure-volume (PV) plot

• 156% of the lowest rating of any valve or flange

4.25 hrs 110% of the Intended MOP at the highest point

Lesser of the qualification pressure and the pressure corresponding to 100% SMYS

4.25 hrs

Target Test Pressures for the project are selected between Minimum and Maximum Test Pressures to give an upper and lower test window in the field.

The V3.2 mainline testing requirements are provided for the Contractor on the Pipeline Hydrotest Schematic drawings provided with the Pipeline Construction package.

5.2 Horizontal Direction Drill (HDD) Segment Pre-Test

The drag sections for the Project’s two HDDs will be hydrostatically pre-tested above-ground as required by Enbridge Standard D06-103. The pre-test shall be conducted as follows:




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a. The decision has been made to set the Minimum Strength Test Pressure for the pre-test to the Maximum Test Pressure the pipe will experience during the mainline test for the corresponding mainline test section. The Minimum Strength Test pressure for the pre-test shall correspond to 110% SMYS of the mainline pipe (maximum mainline test pressure), plus the maximum static head between the critical low point and the HDD low points. The Maximum Strength Test pressure for the pre-test shall correspond to 80% SMYS of the HDD pipe, for safety of site personnel.

b. Care must be taken to adequately support and restrain the pipe during the test to ensure it is not strained beyond acceptable limits.

c. The pipe will be fully exposed, therefore the strength test duration shall be a minimum of one hour. d. Following the strength test, a visual leak test shall be performed to verify there are no leaks. e. The pre-test shall be conducted in accordance with the requirements of CSA Z662-15 and PCS-005.

A summary of the HDD details is shown below in Table 3.

Table 3: HDD Pre-Test Details

HDD Name Location (KP)

Minimum Pre-test Strength Pressure

(kPa) *

Maximum Pre-test Strength Pressure

(kPa) *

Section Length (m)

Westover 0+233 15,200 16,900 701.84

Copetown Woods 8+091 15,200 16,900 870.20

* Pressures Rounded to nearest 100 kPa

The HDD pre-testing requirements are provided for the Contractor on the HDD Construction Notes drawings provided with the Pipeline Construction package.

5.3 Mainline Fabricated Assemblies

Mainline fabricated assemblies such as MLBV and the sending trap assemblies will be tested in the shop. Assemblies shall not be tested with the mainline test and shall be cut-in to the line after drying is complete.

Test pressures shall comply with the requirements of CSA Z662-15, Enbridge Specifications FCS-014, and TSDR-127-2017.

The Maximum Test Pressure shall be limited to a pressure corresponding to 80% SMYS of the 11.13 mm heavy wall pipe for personnel safety during the shop test. The Target Test Pressure shall be the Minimum Test Pressure plus a 500 kPa buffer with the exception of the PN100 tie-in spool at Nanticoke which will be tested in accordance with the test pressure requirements for a PN100 assembly.

The shop testing requirements are provided for the Fabricator on the Piping Isometric drawings provided with the MLBV Fabrication package, and Barrel and Westover General fabrication packages.




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Hydrotest records for the Mainline fabricated assemblies form a part of the final hydrotest documentation for the Project.

5.4 Station Piping

All station piping shall be hydrostatically tested the requirements per Enbridge Specification FCS-014 by the facility’s piping contractor.

The testing requirements are provided for the Contractor on the Piping Isometric drawings provided with the Westover General package.

5.5 Mainline Concrete Coated Sections

If any sections of pipe are coated with continuous concrete coating (CCC), they shall be pre-tested prior to installation; however, at this time, the Project has no sections with CCC.

6. Mainline Hydrostatic Testing Plan Development

6.1 Mainline Hydrostatic Test Contractor Requirements

The hydrostatic test contractor shall prepare a detailed hydrostatic test plan in accordance with this document, CSA Z662-15, PCS-005 and the EPP, using the as-built profile for reference, for approval by Enbridge prior to testing.

6.2 Installation Strategy and Test Section Selection

The Project will be constructed in one spread from Westover Terminal to Nanticoke Junction. The water source location requires the pipeline to be tested in two test sections with the test break at KP 19+200. The Project’s MLBV assemblies will be cut-in after the pressure test is complete and therefore do not affect the test section selection.

6.3 Mainline Hydrostatic Testing Pressure Calculations

The point specific Intended MOP was established along the pipeline utilizing the Version 3.2 elevation profile and a discharge pressure of 9,930 kPa at the Westover Terminal (KP 0+000). The low-point intended MOP for the pipeline is 10, 383 kPa south of Book Rd West (~KP 20+029); refer to the hydrotest schematics in the appendix for site specific intended MOP profile.

In addition to the requirements detailed in section 5.1 the following project decisions by Enbridge are applied to the mainline test pressure selection: the Minimum Strength Test Pressure shall be the pressure corresponding to 100% SMYS at the high point in the test section; the Target Strength Test Pressure shall be the pressure corresponding to 107% SMYS at the critical low point in the test section.




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Using the elevation profile, point-specific Minimum, Maximum, and Target Strength Test Pressures along each test section were set. Point-specific checks were then carried out to ensure the point-specific minimum test pressure was greater than 125% of the Intended MOP. This confirmed the strength tests will serve to set a Qualification Pressure that will establish a satisfactory point specific MOP.

The maximum leak test pressure at the critical low point of the test section is set at the lesser of a pressure corresponding to 100% SMYS and the qualification Pressure. The Target Leak Test Pressure is set at 110% of the intended MOP (Minimum Leak Test Pressure) at the high point of the test section plus a 250 kPa buffer. Point specific Target Leak Test Pressures are then established according to the elevation profile.

Test section details are as shown on the Pipeline Hydrotest Schematic drawings provided in Appendix 1. Refer to calculation sheet PL-CAL-0008 provided in Appendix 2 for detailed calculations of all pressures.

6.4 Hydrostatic Test Heads

The Project will require at least four test heads to complete the hydrostatic test plan as detailed in this document. In accordance with CSA Z662-15, all components of the test head assemblies must have a pressure rating such that at the expected test pressures for the maximum hoop stress does not exceed 75% SMYS of any component. Test heads shall be installed with at least one joint (4 m minimum) of 11.13 mm heavy wall pipe between the test head and the mainline pipe to result in a hoop stress of no more than 90% SMYS of the exposed pipe during testing.

6.5 Valve Section Pipe, Final Tie-in Pipe and Security Pipe

Pipe used for final tie-in sections must be tested in accordance with the Project testing requirements. The Project is designed with segments of 11.13 mm heavy wall pipe to be installed through the MLBV sites and tested with the mainline. Tested sections removed at the MLBV sites for MLBV assembly install and cut-back sections from the pre-tested HDD segments at the tie-ins to the HDDs are sources of tested pipe to be used for final tie-ins.

The Project includes a requirement for a specified amount of Security Pipe. The Contractor will be responsible to include sufficient pipe in the mainline tests and HDD pre-tests to provide the required amount of Security Pipe.

6.6 Test Media Sourcing and Disposal

The test media for all project pressure testing will be fresh water. Additives shall not be used due to disposal restrictions. Gas testing is not accepted. The hydrostatic test contractor shall determine if additional equipment is required to establish a stable test temperature.




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6.6.1 Mainline Test Water

Water used for the mainline test will be sourced from the City of Hamilton and stored at approximately KP 19+200 in a large portable tank (proposed volume is 79 cubic meters). This will be the location of the pumps and testing equipment. The test media can be transferred between the test sections and discharged to the tank from this location. The used test media will be discharged to the city sewer at a maximum rate of 67L/s per acceptable to the city. Final water source and discharge locations will be finalized by Enbridge prior to construction activities. City water from Hamilton shall be withdrawn, stored and disposed of per the water fill and discharge plan in accordance with the permit from the City of Hamilton.

6.6.2 Pre-Test Water

Water used for the pre-testing of the two HDD drag sections will be taken from the City of Hamilton. The water for each pre-test will then be transported in a tank truck to the HDD locations. Once pre-testing is complete, the water will be transported by tank truck and disposed of at an appropriate facility.

7. Hydrostatic Test Acceptance and Documentation

Acceptance criteria for each test will be as described in CSA Z662-15 and Enbridge Specification PCS-005. Mainline and HDD pre-test hydrostatic test records and documentation in accordance with CSA-Z662-15 must be prepared to provide evidence the piping has been qualified for service and in a manner satisfactory for submission to the appropriate regulatory body. Documentation shall include calibration and certification documentation for of instruments used during the hydrostatic test.

The Contractor shall maintain a Pressure-Volume (PV) plot for the pressure tests in accordance with CSA Z662-15 and PSC-005.

8. Post-Hydrostatic Test Activities 8.1 De-Watering

De-watering shall be completed as soon as possible following the hydrostatic test, in accordance with PCS-005 Section 15, CSA Z662-15 and all applicable disposal agreements.

When testing of Section 1 is complete, test water will be transferred to Section 2 via a tank stored in temporary workspace (TWS) at KP 19+200. When testing of Section 2 is complete, the pipeline will be de-watered and the test water will be disposed of as described above.




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8.2 Drying

Once the pipeline is de-watered, it will be dried using foam pigs in accordance with PCS-005 Section 16 and CSA Z662-15. The Contractor shall complete foam pig runs until the Inspector is satisfied that the line is dry.

8.3 Corrosion Inhibitor/Biocide

Corrosion inhibitor shall be applied to the pipeline in accordance with PCS-005 Section 17, as soon as possible after drying is complete. The corrosion inhibitor and biocide shall be applied in three steps:

1. De-watering as per Section 8.1 and drying as per Section 8.2. 2. Rinsing the pipeline with a batch inhibitor between two purge pigs 3. Final drying as per PCS-005 Section 16b

For more details on the corrosion inhibitor and biocide application, refer to Enbridge’s Corrosion Inhibitor and Biocide Scope of Works.

9. Safety and Protection of Property and the Environment

Hydrostatic testing will be done in accordance with the safety requirements as outlined in CSA-Z662-15, Enbridge construction procedures and safety manuals, and a Project specific hydrostatic testing procedure to be developed by the Contractor.

Although the test media is water and the majority of the pipeline is Class 1 indicating sparse population, there is some inherent risk to public safety during hydrostatic testing activities. Adequate signage, patrols, and barricades will be in place to restrict public access to the ROW in areas close to populated municipalities and Class 2 and 3 designated areas, as per section 10 in PCS-005.

Adherence to the media sourcing and disposal requirements and regulations set by the government of Ontario and the City of Hamilton will mitigate environmental risk from hydrostatic testing activities. Although the test media is water, the Contractor’s hydrostatic testing procedure shall contain a detailed plan for spill control and cleanup inclusive of remediation.

As per the Construction Alignment Sheets, a joint of heavy-wall pipe shall be installed at the beginning and end of each test section (including pre-test sections).

The Contractor shall prepare a spill contingency plan to deal with water release in the event of a test failure. This plan will be in accordance with Enbridge’s Pipeline Environmental Protection Plan (EPP).




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Appendixes

Appendix 1 – V3.2 Westover Segment Replacement Pipeline Hydrotest Schematics Appendix 2 – 680046-PL-CAL-0008 Hydrostatic Test Calculations




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Appendix 1 – V3.2 Westover Segment Replacement Pipeline Hydrotest Schematics

• D-10-5.73-HS001-1-400LWP

• D-10-5.73-HS002-1-400LWP




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10201 JASPER AVENUE

ENBRIDGE PIPELINES INC.

EDMONTON ALBERTA CANADA




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10201 JASPER AVENUE

ENBRIDGE PIPELINES INC.

EDMONTON ALBERTA CANADA




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Appendix 2 – 680046-PL-CAL-0008 Hydrostatic Test Calculations




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680046-PL-CAL-0008.xlsx (C) CH2M HILL 2013

CALCULATION COVER SHEET PL-CAL-0008

CH2M HILL Energy Canada Ltd. Discipline: PL

Refer to calculation sheets for test section specific pressures`

OWNER:

RESULTS:

REFERENCES:CSA Z662-15 Oil and gas pipeline systems

INPUT / ASSUMPTIONS:Pipe Dia: NPS 20 (508mm), Pipe Cl./Gr.: ERW / X70 (483MPa), Pipe WT: 7.23 mmPressures: 9,930 kPa discharge at Westover Station- Centerline Version 3.2Test medium will be water (1,000 kg/m3 density)Please refer to calculation sheets for balance of input parameters

OBJECTIVE:Determine the minimum and maximum strength and leak test pressures at the start, low, high, and endpoints of a test section. As well, to determine the target test pressures at those points.

METHOD:Excel Calculation Sheet based on CSA Z662-15 and Enbridge Specifications

CS C/L V3.20 03/21/17 DP CS C/L V3.1

REVISION HISTORY:Rev. No. Date By Approved Notes

A 12/13/16 ATK CS

1 07/07/17 DP

SUBJECT: Hydro Test Pressure Profile CHECKED BY: NADOC. NO. 680046-PL-CAL-0008

JOB NAME: Line 10 - Westover Segment Replacement Project COMPUTED BY: DP

JOB NO.: 680046

CALC NO.:DATE: 7/7/2017




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TEST SECTION 1

Line 10 0.8 (FxLxJxT)

20 0.8

508 mm 1

7.23 mm 1

900 ANSI 1

9930 kPa

SMYS, S 483 MPa PARAMETER DESCRIPTION

Test Section Length 19 km

Aim Pressure Tolerance 250 kPa Test Fluid Water

1000 kg/m3

Location Class 1, 2, 3

Category ( I, II, or III) I

Service LVP

Station Elevation Intended MOP

km m kPa

Section Start 260.412 9,930

Critical Low Point 18.521 215.579 10,370

Critical High Point 0.922 262.522 9,909

Section End 19.195 219.076 10,336

OWNER: PIPE SIZE mm 100% SMYS kPa 107% SMYS kPa 110% SMYS kPa

NPS 20 508.0

Target 107%

+ 250

Westover Discharge Pressure

HYDROTEST DESIGN LIMITS

(Section 4.3) - Pressure Design Wall Thickness

Strength Test Pressure Design - Minimum 4.25 Hours

Leak Test Pressure Design - Minimum 4.25 Hours

OVERALL DESIGN FACTOR

General Design Factor, F

Location Factor, L

Joint Factor, J

Temperature Factor, T

Test Fluid Density

TEST FLUID PROPERTIES

Pipeline Name

Nominal Pipe Size

Nominal Pipe Diameter, D

Wall Thickness

Material Standard

14683 107% 148%

148%

146%

13749

14176

107%

110%

High PointSection End

Elevations

m

Minimum Pressure

260.412

215.579

262.522

219.076

100% 139%

103%

100%

103%

137%

139%

137%

14210 15123

14662

15088

OD

14711 15123

Section Volume

m3

Pressure At

3673

Pressure At

13748

Profile Data

kPa %SMYS %Intended MOP kPa %SMYS

Critical Low Point

Section Start (Test Point)

Maximum Pressure

%Intended MOP

13770

146%110%

SUBJECT Hydro Test Pressure Profile CHECKED BY: NA

TEST SECTION CHARACTERISTICS DESIGN FACTORSPARAMETER DESCRIPTION PARAMETER DESCRIPTION

JOB NO.: 680046

CALC NO.: PL-CAL-0008-1

DATE: 7-Jul-17

JOB NAME Line 10 - Westover Segment Replacement Project COMPUTED BY: DP

Target Strength Test Pressure Determination

lowpoint

Section Start

Critical Low Point

High Point

Section End

260.412

215.579

262.522

219.076 142%

kPa %SMYS %Intended MOP

104%

14271

14711

14251

14677

104%

107%

Section Start (Test Point) 260.412 10921 79% 110% 13308 97% 134%

m kPa %SMYS %Intended MOP kPa %SMYS %Intended MOP

262.522 10900 79% 110% 13287 97% 134%

Critical Low Point 215.579 11361 83% 110% 13748 100% 133%

Elevations Minimum Pressure Maximum Pressure

Section End 219.076 11576 84% 112%

High Point 262.522 11150 81% 113%

133%

Target Leak Test Pressure Determination

Tolerance kPa

Section End 219.076 11326 82% 110%

High Point

m

Elevations

Elevations

m

144%

142%

144%

Critical Low Point 215.579 11611 84% 112%

kPa %SMYS %Intended MOP

Section Start (Test Point) 260.412 11171 81% 112%

13713 100%

107%

Profile Data

DStP 2

=




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TEST SECTION 2

Line 10 0.8 (FxLxJxT)

20 0.8

508 mm 1

7.23 mm 1

900 ANSI 1

9930 kPa

SMYS, S 483 MPa PARAMETER DESCRIPTION

Test Section Length 16.0 km

Aim Pressure Tolerance 250 kPa Test Fluid Water

1000 kg/m3



Service LVP

Station Elevation ntended MOP

km m kPa

Section Start 19.195 219.08 10,336

Critical Low Point 20.029 214.27 10,383

Critical High Point 32.298 229.54 10,233

Section End 35.150 221.44 10,312

OWNER: PIPE SIZE mm 100% SMYS kPa 107% SMYS kPa 110% SMYS kPa

NPS 20 508.0

Target 107%

+ 250

Target Leak Test Pressure Determination

Tolerance kPa

kPa %SMYS %MOP

99%

Elevations

m

High Point 229.535 11506 84% 112%

Section Start (Test Point) 219.076 11609 84% 112%


84%Section End 221.436 11586 112%

Section End 221.436 11336 82% 110% 13677 99% 133%

High Point 229.535 11256 82% 110% 13598 133%

Critical Low Point 214.269

%SMYS %MOP

Section Start (Test P 219.076 11359 83% 110% 13700 100% 133%

11406 83% 110% 13748 100% 132%

Leak Test Pressure Design - Minimum 4.25 Hours

Profile Data

Minimum Pressure Maximum Pressure

kPa %SMYS %MOP kPa

Elevations

m

High Point 229.535 14562 106% 142%

Section End 221.436 14641 106% 142%


kPa %SMYS %MOP

Section Start 219.076 14664 107% 142%

m

109% 146%

Target Strength Test Pressure Determination

lowpoint

Section End 221.436 13829 101% 134% 15052

Elevations

High Point 229.535 13749 100% 134% 14973 109% 146%

110% 146%

Critical Low Point 214.269 13899 101% 134% 15123 110% 146%

Section Start (Test P 219.076 13852 101% 134% 15075

Minimum Pressure Maximum Pressure

kPa %SMYS %MOP kPa %SMYS %MOP

Elevations

m

Strength Test Pressure Design - Minimum 4.25 Hours

Profile Data

Pressure At

m3

3053 13748 14711 15123

Test Fluid Density



OD Section Volume Pressure At

Wall Thickness Joint Factor, J

Material Standard Temperature Factor, T

Intended Maximum Operating Pressure (MOP), P TEST FLUID PROPERTIES

Pipeline Name OVERALL DESIGN FACTOR

Nominal Pipe Size General Design Factor, F

Nominal Pipe Diameter, D Location Factor, L

PARAMETER DESCRIPTION PARAMETER DESCRIPTION

JOB NAME Line 10 - Westover Segment Replacement Project COMPUTED BY: DP

SUBJECT Hydro Test Pressure Profile CHECKED BY: NA

JOB NO.: 680046


DATE: 7-Jul-17

TEST SECTION CHARACTERISTICS DESIGN FACTORS

DStP 2

=DStP 2

=




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TEST SECTION

Line 10 HDD Low Point (Sheffield Rockton) 236.9 m

20 HDD Low point (Copetown) 215.2 m

508 mm Test Section 1 Critical Low 215.6 m

Wall Thickness (line pipe) 7.23 mm Test Section 2 Critical Low 214.3 m

Wall Thickness (HDD pipe) 11.13

900 ANSI

9930 kPa Test Fluid Water

1000 kg/m3

SMYS, S 483 MPa

Aim Pressure Tolerance 250 kPa



Service LVP

PIPE SIZE mm 110% SMYS* -21 m 0** kPa 80% SMYS***

NPS 508.0 kPa kPa 16932 kPa

PIPE SIZE mm 110% SMYS* 0.4 m 3.7 kPa 80% SMYS**

NPS 20 508.0 kPa kPa 16932 kPa

JOB NO.: 680046


DATE: 7-Jul-17

JOB NAME Line 10 - Westover Segment Replacement Project COMPUTED BY: NA

SUBJECT Hydro Test Pressure Profile CHECKED BY: CS

TEST SECTION CHARACTERISTICSPARAMETER DESCRIPTION

HDD Pretest

PARAMETER DESCRIPTION

Material Standard

Intended Maximum Operating Pressure (MOP), P

Pipeline Name

Nominal Pipe Size

Nominal Pipe Diameter, D

Elevation Difference



OD Pressure At

15123*Calculated for Line pipe

Pressure At

Sheffield HDD - Location: Test Section 1

Copetown HDD - Location: Test Section 1 110% SMYS of line pipe Static Head Between Mainline low and HDD

low

Pressure AtStatic HeadElevation Difference

Test Fluid Density

OD

110% SMYS of line pipe Static Head Between Mainline low and HDD low

Minimum Pre-Test Pressure

*Calculated for Line pipe **Calculated for HDD pipe15127

Minimum Pre-Test Pressure Maximum Pre-Test Pressure

Maximum Pre-Test Pressure

Static Head

110% Pressure + Static Head

Pressure At

15123

***Calculated for HDD pipe

110% Pressure + Static Head

15123** Negative static head not additive to minimum test pressure

DStP 2

=DStP 2

=




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