Solicitation Amendment W912P826BA0230002 SF 30.pdf

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

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12. ACCOUNTING AND APPROPRIATION DATA (If required)

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IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

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B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

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Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

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9B. DATED (SEE ITEM 11)

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CODE FACILITY CODE

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

W912P826BA0230002

DRAWINGS

SHEET IDENTIFICATION C-40. Delete the drawing in its entirety and substitute with the attached revised drawing SHEET IDENTIFICATION C-40.

REFERENCE DOCUMENT

Include the Preliminary Inspection Report, Sabine National Wildlife 30” Permanent Dredge Pipeline, Project ID 01841MCI, Rev. 0, dated August 20, 2026 for reference. The Government has reviewed the preliminary inspection findings, and no repairs to the identified anomalies are required prior to use of the permanent pipeline under this contract. Revised Sheet C-40 identifies the approximate anomaly locations for Contractor awareness and monitoring. The Contractor shall comply with the existing inspection, monitoring, reporting, and applicable repair requirements of Specification Section 01 10 00, paragraph 36, PERMANENT PIPELINE USACE REQUIREMENTS. The inspection report is provided for information and does not modify or supersede the requirements of the contract plans and specifications.

Preliminary Inspection Report

In-Line Inspection DEF standalone and MFL Standalone

Customer: CPRA (State of Louisiana) / DEAN Project:

Sabine National Wildlife 30” Permanent Dredge Pipeline

Length: 3.525 Miles (mi.)

Diameter: 30 Inches (in.)

Project ID: 01841MCI Inspection Date: July 26, 2026 Report Date (Rev 0): August 20, 2026 Field Technician(s): Khallum Hall & Tien Tran Data Analyst(s): Alex Ruiz & Yen Nhi Nguyen Reviewed by: Yen Nhi Nguyen

L3 Data Analyst, Data Analysis Manager

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Project Name Sabine National Wildlife 30” Permanent Dredge Pipeline Project ID 01841MCI Inspection

July 26, 2026

Contents 1 Executive Summary

1.1 Severity Condition based on response requirements

2 MFL

2.1 MFL Run Profiles

3 Geometry

3.1 CAL Run Profile

4 XYZ Mapping 5 Pipeline Information 6 Revision History Appendix A Technology Description

A.1.1. Caliper Tool Description A.1.2. MFL Tool Description

Appendix B Definitions and Abbreviations B.1. Definitions B.2. Abbreviations B.3. Nomenclature of Features B.4. Definition of Clock Position B.5. Deformation + Ovality Calculation B.6. Classification of Metal Loss B.7. Interaction Rule B.8. Remaining Strength Calculation B.9. Inertial Mapping Measurement B.10. AGM location requirements and specifications

Appendix C Tool Data Sheet and Technology Specification C.1. Tool Data Sheet C.2. MFL Accuracy Specification Data Sheet C.3. MFL Accuracy Specification for incomplete and degraded data in pipe body C.4. MFL Accuracy Specification for overspeed C.5. GEOMETRY Accuracy Specification Data Sheet C.6. 3D & Inertial Mapping Specification Data Sheet

Appendix D Preliminary pipeline listing Appendix E Detailed Feature Sheet Legend

Detailed feature sheet: Anomaly 2448 Detailed feature sheet: Anomaly 2579 Detailed feature sheet: Anomaly 2987 Detailed feature sheet: Anomaly 2989

Appendix F Certifications

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1 Executive Summary

A DEF standalone and MFL Standalone with IMU inspection was conducted on the 30 inches Sabine National Wildlife 30” Permanent Dredge Pipeline on July 26, 2026.

The amount of data captured is described below:

• Caliper = 100%

• MFL = 98.55%

• IDOD = 98.86%

• IMU = 100%

42.1% of the data recorded by the MFL tool exceeds the operational speed limit of the tool which is 13.2 fps (9.0 mph), and 24.1% of the data recorded by the CAL tool exceeds the operational speed limit of the tool which is also 13.2 fps (9.0 mph).

Based on that, sizing specification for any metal loss or dent in these areas with overspeed will be on best endeavour.

Overall, the captured data and its quality were within the acceptance criteria, allowing for analysis and reporting.

Clustering rule applied for data analysis:

• 3t axial x 3t circumferential

Remaining Strength Assessment (RSA) on all metal loss anomalies utilized:

• ASME B31G Level 1 Modified

Pipeline-based values for calculation(s):

• MOP 740 psi

• Safety Factor 1.39

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1.1 Severity Condition based on response requirements

According to the information provided by costumer, the product transported by this pipeline is sea water. Based on this, there is not a current regulation to determine a severity condition based on the product transported to specify a response requirement on the anomalies reported after completing an integrity assessment.

Considering the above, severity conditions have been considered according to e-CFR 1 Part 195.452 (h)(4) for inspected hazardous liquid pipelines.

Table 1-1 presents a summary of the number of anomalies meeting response requirements to be reported in this preliminary report.

Table 1-1 Anomaly Summary

Condition Immediate repair conditions:

Metal loss > 80% of nominal wall (with tool tolerance) 2

Predicted burst pressure ≤ 1.1 MOP at the location of the anomaly 0

Dent located on the TOP 2 of the pipeline that has metal loss, cracking, or a stress riser 1 A dent located on the TOP 2 of the pipeline with a depth > 6% of the pipeline diameter Other indication or anomaly requiring immediate action. 0

60-day conditions:

A dent located on the TOP 2 of the pipeline with a depth > 3% of the pipeline diameter. N/A

A dent located on the BOTTOM 3 of the pipeline that has metal loss, cracking, or a stress riser

N/A

180-day conditions:

A dent with a depth > 2% of the pipeline diameter that affects pipe curvature at a girth weld or a longitudinal seam weld.

N/A

A dent located on the TOP 2 of the pipeline with a depth greater than 2% of the pipeline diameter.

N/A

A dent located on the BOTTOM 3 of the pipeline with a depth > 6% of the pipeline diameter

N/A

Predicted safe operating pressure < MOP at the location of the anomaly N/A An area of general corrosion with a predicted metal loss greater than 50% of nominal wall

N/A

Predicted metal loss greater than 50% of nominal wall that is located at a crossing of another pipeline, or is in an area with widespread circumferential corrosion, or is in an area that could affect a girth weld

N/A

A potential crack indication that when excavated is determined to be a crack. N/A Corrosion of or along a longitudinal seam weld. N/A A gouge or groove greater than 12.5% of nominal wall. N/A

1 e-CFR Part 195. TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE. https://www.ecfr.gov/current/title-49/subtitle-

B/chapter-I/subchapter-D/part-195. Retrieved in August 2026.

2 From 08:00 to 04:00 3 From 04:00 to 08:00 https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-D/part-195 https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-D/part-195

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The number of dig sheets generated, meeting immediate repair conditions, is shown in Table 1-2 below.

Descriptive dig sheets, if any, are presented in Appendix D.

Table 1-2 Dig sheets

Description

Dig sheets 4 4

4 It has been included the dig sheet of the metal loss interacting with the dent.

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2 MFL

2.1 MFL Run Profiles

The run profiles give insight into tool dynamics and behaviour of the tools during the inspection run. The tool velocity and the MFL tool magnetization level versus distance plots are displayed below.

Figure 2-1 Velocity MFL tool

Figure 2-2 Magnetization level

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3 Geometry

3.1 CAL Run Profile

The run profiles give insight into tool dynamics and behaviour during the inspection run. The velocity profile plot of the CAL tool is shown in Figure 3-1.

Figure 3-1 Velocity CAL tool

The detected wall thickness plot is displayed below. Variation between minimum, maximum velocity is caused by and drive pressure/flow variation.

Figure 3-2 Wall Thickness

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4 XYZ Mapping High resolution XYZ mapping was included in the scope of work for this project. Above Ground Markers (AGMs) were used to spatially map the data produced by the run. Coordinates are reported in WGS84 data reference system with altitude geoid in EGM96.

GPS measurements of the marker locations were provided to PipeSurvey USA, to integrate with the IMU data and complete the IMU processing.

However, due to excessive speed excursions and stoppages (which give an accumulated of time of about 3 hours) during the MFL inspection, the IMU system installed in this tool restarted and resected multiple times. As a result, the data recorded by the MU device is degraded and considered inappropriate for any IMU data process.

Based on the above, and for getting a XYZ mapping of this pipeline, it was used the inertial data recorded by the MEMs device installed in the CAL tool, which recorded 100% of inertial data during the CAL run. In addition, and for improving the IMU accuracy, several reference markers were used from the pipeline alignment drawing provided by customer.

The table below lists the reference markers used for the inertial data process and the accuracy obtained after processing the IMU data.

Label Comment

Station Latitude

Longitude

Altitude (ft)

IMU

Accuracy

(ft)

SP01 East Side Launch 0+00 29.96111569 -93.34746361 -87.46

SP02 East Side Launch Riser 0+19 29.96114257 -93.34751240 -92.34 0.33

RM-01 Point 35 1+378 29.96301944 -93.35120278 -95.55 2.62

RM-02 Point 48 1+924 29.96375000 -93.35265833 -95.15 2.62

RM-03 Point 73 2+994 29.96426111 -93.35593611 -90.08 6.23

RM-04 Point 103 4+355 29.96422778 -93.36023333 -94.61 4.27

RM-05 Point 150 6+301 29.96420556 -93.36665278 -96.01 3.94

RM-06 Point 155 6+755 29.96437500 -93.36803056 -85.31 5.58

RM-07 Point 195 8+516 29.96440556 -93.37358889 -94.85 4.27

RM-08 Point 270 11+538 29.96435278 -93.38313056 -93.85 1.64

RM-09 Point 301 12+863 29.96436667 -93.38731389 -95.55 0.98

RM-10 Point 320 13+618 29.96436667 -93.38956944 -91.81 0.98

RM-11 Point 331 14+060 29.96436667 -93.39109167 -88.15 1.31

RM-12 Point 345 14+604 29.96436111 -93.39281111 -83.15 5.25

RM-13 Point 351 14+802 29.96437222 -93.39343611 -94.85 2.95

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Label Comment

Station Latitude

Longitude

Altitude (ft)

IMU

Accuracy

(ft)

RM-14 Point 356 15+135 29.96436111 -93.39448889 -97.74 0.98

RM-15 Point 367 15+958 29.96430556 -93.39708611 -96.05 2.95

RM-16 Point 385 17+115 29.96421944 -93.40073889 -96.87 1.31

RM-17 Point 391 17+661 29.96418333 -93.40246389 -96.77 1.97

SP03 West Side Receiver Riser 187+29 29.96387543 -93.40540847 -93.26 4.92

SP04 West Side Receiver 187+46 29.96385042 -93.40545891 -87.40 0.33

Mapping is digitally available as KML export for Google Earth with GPS coordinates for each reported feature in the Pipe Tally.

Figure 4-1 Google Earth: Pipeline routing map

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5 Pipeline Information The following pipeline information was provided by the client in the Pipeline Questionnaire.

Pipeline Information Pipeline description Sabine National Wildlife 30” Permanent Dredge

Pipeline Launch site East Side Launch Receive site West Side Receiver Diameter 30 inches Length 3.525 miles Minimal Bend radius TBD Maximum Bend degree TBD Inspection Medium Compressed Air Operating Temperature Ambient MOP 740 psi Safety Factor 1.39

Table 5-1 Pipeline Properties

Pipeline Material Pipeline Type Diameter

[in] Wall Thickness

[in]

SMYS

[psi]

X60 Longitudinal Seam 30 0.500 60000

Table 5-2 Wall Thickness Summary

Wall Thickness [in] Pipe Spools Total Length [ft]

0.500 512 18622.17

Installations 0 0 All 512 18622.17

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6 Revision History

Rev 0 (August 20, 2026) Released for comments

Approved for release

Yen Nguyen Data Analysis Operations Manager

Signature:

Yen Nguyen

Date: August 20, 2026

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Appendix A Technology Description

A.1.1. Caliper Tool Description Pipesurvey International’s Caliper is an advanced pipeline geometry pig with multi-channel high resolution that incorporates numerous extra devices which register the dynamic behaviour of the tool. The complete set of data offers valuable information about the pipeline geometry, such as deformations, curvatures, misalignments, bend radii. The Caliper sensors are in direct contact with the pipe wall and give a complete coverage of the circumference of the pipe. The sensors are of an extremely rugged design which makes the Caliper suitable for the hostile environment of even old and difficult to inspect pipelines. Further, the Caliper incorporates:

- Three odometers of a low-slip design for accurate location

- A time-based bench marking system linked with GPS coordinates (optional)

- Rotational and linear inertial sensors, to register the dynamic behaviour of the pig and provide information about the pipeline profile, bend radii and angles.

- High frequency linear inertial measurements to reveal data about friction, weld penetrations sediments and other pipe wall characteristics.

- Temperature and pressure sensors offer additional data which help to analyse the operational and pipeline conditions.

The Caliper is a versatile tool that can be applied for the assessment of pipeline features, conditions, and events, such as:

- Dents, buckles, wrinkles, ovalities, weld penetration

- Bends and bend radii, misalignment, slope instability, inclinations, landslides, river crossings

- Risers, valves, tees, and other pipeline installation features

- Sedimentations, wax growth zones, liquid slugs, erosion

DATsurvey ® Software is an extremely powerful and highly user-friendly diagnostic tool. It allows the user to visualize the detected features, view the pipeline on variable scale, select length sections, view cross sections, curved sections, and zoom in on anomalies and generate 3-D plots. Each spot can be printed on a data sheet with log distance, weld distance, the length of affected pipe, clock orientation and characteristics of the deformation. One can scroll through the complete inspection data, assess, and quantify deformations, correlate Caliper data with pig dynamics and pressure differential data, plot a velocity profile, monitor pipeline profiles and the operating conditions. The software can be installed on the user’s PC together with the data and is a helpful instrument to interpret measurements. It enables the pipeline operator to prioritize pipeline remediation activities.

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A.1.2. MFL Tool Description

The Pipesurvey International MFL tool is designed with high density of Hall sensors, which measure the magnetic flux field in three orthogonal directions (radial, axial, and circumferential) for accurate measurement of metal loss volume. The sensors are stacked in a true, gap-less, sensor arrangement to cover the complete circumference of the pipe wall. Each sensor pad is of integrated rugged design, incorporating ID/OD sensors - based on high frequency Eddy Current technology - and quality sensors for lift-off and magnetization level. At the same time, the design of the measuring system offers sufficient flexibility to scan the near weld zone as accurate as possible. The sensor pads are combined on low friction wheel-supported magnetic yokes, which are arranged in such a way that the tool is able to pass through 1.5D radius bends and maximum 25% diameter reductions.

Due to the application of leading edge micro technology and power-friendly design, the tool is of short length, which offers advantages in areas where space is limited, such as offshore services.

Magnetization of the pipe wall is achieved by direct magnetic contact without the usage of brushes. Thus, there is no risk of losing bristles and the bristles cannot interfere with pipeline components such as flexible pipe, valves and instrumentation. The magnetic yoke is of smooth design, using soft materials and round edges on all extremities, to eliminate any danger of damage to the tool or to the pipeline components.

The Pipesurvey International MFL tool distinguishes itself from other tools in the market in that it is a versatile tool. The tool can be equipped with cups for long distance operation in transmission lines; it can also be equipped with special design discs for reverse flow operation, which opens new frontiers in MFL inspection. In-line inspection of sub-sea pipelines ending in wellheads or subsea manifolds, jetty lines, tank-farm lines, flow lines and other ‘unpiggable’ lines is now possible.

The MFL tool is equipped with three odometers for the determination of distance in the pipeline. Above Ground Markers, which incorporate GPS technology, can be used in onshore applications to detect and record the pig passage.

The design and engineering of the MFL pig is in accordance with prevailing standards of workmanship, expertise, national and international standards. This covers, but is not limited to, the following issues:

1. mechanical components are designed, and pressure tested with respect of the applicable safety factors

2. all electronics are shock and vibration resistant up to 50 g forces.

3. batteries are triple fused, battery compartment is temperature and pressure monitored.

4. disc and cup rubbers are designed to a safe blow-over pressure.

5. lifting and handling lugs are in accordance with international standard.

DATsurvey® Software is a powerful and user-friendly diagnostic tool. It allows the user to visualize the detected features, view the pipeline on variable scale, select length sections, view cross sections, curved sections, zoom in on anomalies and generate 3-D plots.

Each feature can be printed on a data sheet with log distance, weld distance, the length of affected pipe, clock orientation and characteristics of the anomaly. One can scroll through the complete inspection data, correlate inspection data with pig dynamics and pressure differential data, plot a velocity profile, monitor pipeline profiles and the operating conditions. The software does not require installation on the user's PC and is a helpful instrument to interpret measurements. It enables the pipeline operator to prioritize pipeline-remediating activities.

The measurements performed to determine metal loss in the pipeline are based on the Magnetic Flux Leakage (MFL) principle. The MFL tool induces an axially oriented magnetic field in the pipe wall between the two poles of two magnets.

Figure A-6-1 MFL Technology

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A homogeneous steel wall without metal loss creates an undisturbed and uniform distribution of magnetic flux. Metal loss associated with the steel wall causes a change in the distribution of the flux, which in case of a near-saturated pipe wall, leaks out of the steel.

The degree of magnetic field strength induced in the pipe wall, determines the saturation of the pipe wall. Higher saturation leads to stronger leakage signals from the metal loss while reducing effects variation in material properties.

Sensors detect and measure the leakage of magnetic flux. The magnitude and shape of the leakage field is used to determine the size and shape of the metal loss area. Since the magnetic field is a vector field, the flux leakage is best measured by means of tri-axial hall sensors.

The measurement is a relative wall thickness measurement, calculating the metal loss in a percentage of the known local wall thickness. Calibration of the tool is performed by pull tests, measuring the leakage signals of defects with a variety of sizes and wall thicknesses.

The leakage signals are collected by the latest technology microprocessors and data analysis programs in order to determine the metal loss feature length, width and depth. These data act as a basis for defect severity ranking, using assessment methods such as ASME B31 G, in order to determine the safe working pressure of a pipeline. Additional fit-for-purpose analysis and repair strategies can also be provided.

Additional sensors are used in order to determine whether a feature is on the internal or external surface of the pipeline. The technology used is based on eddy currents, using an alternating electromagnetic field to determine the distance to the pipe wall. If metal loss is present on the inside of the pipe wall the change in signal will indicate the surface location of the defect.

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Appendix B Definitions and Abbreviations

B.1. Definitions

Above Ground Marker A portable device placed on the ground above a pipeline that both detects and records the passage of an in-line inspection tool.

Anomaly An indication of deviation from the norm pipe material.

Arc Strike Localized points of surface melting caused by an electric arc (also referred to as hot spot).

Bend A physical pipe configuration that changes pipeline direction.

Buckle A local geometric instability causing ovality and flattening of the pipe as a result of excessive bending or compression with possibly abrupt changes in the local curvature.

Caliper Tool An in-line inspection tool that is designed to detect, locate and size deformations by measuring the internal pipe radius, also called geometry inspection tool

Casing A larger diameter pipe surrounding the pipeline, installed for the purpose of protecting the pipeline from external loads and damage.

Certainty Statistical probability that a reported anomaly characteristic is within stated tolerance.

Circumferential Orientation Location of a feature around the circumference of the pipe, expressed as a clock position. The reported circumferential orientation is the middle of the feature.

Cluster Two or more adjacent metal loss features that may interact to weaken the pipe more than either would individually.

Confidence Level Statistical term used to describe the mathematical confidence with which a statement is made.

Corrosion An electrochemical reaction of the steel pipe wall with its environment resulting in metal loss.

Crack A planar, two-dimensional anomaly feature with a sharp radius and possible displacement of the fracture surfaces.

Defect An anomaly exceeding the acceptable criteria Deformation A change in shape, such as a buckle, dent, ovality or any other change which affects the roundness of the pipe’s cross section or straightness of the pipe.

Dent A local change in the pipeline surface contour caused by an external force such as mechanical impact or rock impact.

Dent, Kinked Dent with an abrupt change in the curvature of the pipe wall if any radius of curvature in the dent is ≤ 5 times the wall thickness. This type of dent might also be associated with wall thickness reduction or crack.

Dent, Plain A dent which causes a smooth change in curvature of the pipe wall that contains no wall thickness reduction and is not associated with an adjacent girth, spiral or seam weld.

Dent, Smooth A dent which causes a smooth change in curvature of the pipe wall that contains wall thickness reduction(s) (such as e.g. a gouge, crack, corrosion) and/or is associated with an adjacent girth, spiral or seam weld.

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Detection Threshold Dimension(s) of an anomaly that must be exceeded to achieve a stated probability of detection.

Estimated Repair Factor The ratio of the pipeline maximum (allowable) operating pressure to the safe operating pressure as determined by the remaining strength assessment.

Feature Any physical object detected by an in-line inspection tool e.g. anomalies, valves, bends, supports, etc.

Gauge Plate Aluminium plate with diameter specified at a certain percentage of nominal pipe bore, used to indicate major pipe bore restrictions.

Girth Weld Circumferential weld, joining two pipe joints.

Gouge Surface damage with elongated grooves or cavities, usually created by mechanical displacement or removal of material.

Grinding Reduction in pipe wall thickness by removal of material by hand filing or by power disk grinding.

Heat Affected Zone The area around the weld where the metallurgy of the steel is altered by the rise in temperature caused by the welding process.

Inertial Measuring Unit A gyroscopic device incorporated in an in-line inspection tool used to determine XYZ location of the pipe and its features.

In-Line Inspection The inspection of a pipeline from the interior of the pipe.

In-Line Inspection Tool A device that is equipped with instrumentation to conduct a non-destructive inspection technique from the inside of the pipe.

Interaction Rules Specifications that establish spacing criteria between anomalies.

Lamination A planar discontinuity lying parallel to the pipe wall.

Lap A metal protrusion that is folded and rolled into the hot metal surface during rolling of the plate from which the pipe is made.

Launcher A pipeline facility used for inserting a tool into a pressurized pipeline, may also be referred to as a pig trap.

Log Distance Distance from the starting point of the pipeline to the middle of the described feature, as measured by the inspection tool. The starting point of the inspection run is generally specified as the middle of the pig trap isolation valve.

Longitudinal weld Seam in a pipe joint, axially orientated.

Magnetic Field Strength The intensity of the magnetic field as produced by an electrical current or permanent magnet, expressed in Ampere per meter.

Magnetic Flux Density The amount of magnetic flux through an area, as induced by the magnetic field, expressed in Tesla or Gauss.

Magnetic Flux Leakage A type of non-destructive inspection technology, see Appendix A.

Magnetic Flux Leakage Tool In-line inspection tool based on the Magnetic Flux Leakage inspection technique to detect and characterize metal loss anomalies.

Metal Loss A reduction in wall thickness.

Mill Scale The oxide layer formed during hot fabrication of steel pipe.

Ovality Out of roundness of the pipe, defined in terms of the difference between minimum and maximum internal pipe diameter.

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Pipeline A system of pipe joints and other components used for transportation of products.

A pipeline extents from pig trap to pig trap, including the pig traps, or the first isolation valve.

Pipe Mill Anomaly Flaw or imperfection in the pipe that arises during production of a pipe joint or component.

Probability of Detection Probability that a feature will be detected by the in-line inspection tool.

Probability of Identification Probability that a feature, once being detected, will be correctly identified.

Receiver A pipeline facility used for removing an in-line tool from a pressurized pipeline; may also be referred to as trap or pig trap.

Reporting Threshold A parameter that defines whether an anomaly will be reported. The parameter may be a limiting value on the depth, diameter reduction, width or length of the anomaly. This is normally taken at the parameter threshold at 90% Probability of Detection.

Remaining Strength Assessment Assessment method of the metal loss to predict the pipeline failure pressure. For example, commonly used methods are ASME B31G (Modified) and DNV RP-F101.

Roll Mark Markings on the pipe surface resulting from the plate or pipe rolling process.

Seam Weld A weld is a longitudinal or spiral weld in a pipe, which is made in the pipe mill Seamless Pipe without a seam weld Sizing Accuracy The accuracy with which an anomaly dimension or characteristic is reported.

Accuracy is expressed by a tolerance and a certainty.

Specified Minimum Yield Strength The minimum yield strength prescribed by the specification under which pipe is purchased from manufacturer.

Spiral Weld A longitudinal weld that traverses helically around the pipe. A welding process used in the manufacture of pipe.

Joint Single section of pipe.

Strain Measure of deformation in a material due to applied stress, usually expressed as a ratio of the original length.

Stress The force intensity that a material is subject to, the force per unit area.

Sliver A thin elongated piece of metal rolled into the surface of the pipe. Sometimes reported as lap or lamination.

Tolerance The permissible limits of variation in a measured value or property.

Wrinkle A smooth, local, plastic deformation, mainly circumferentially orientated, on the out and/or inside of the pipe wall caused by bending stresses.

Weld Affected Area Area on both sides of the weld where ILI measurements are affected by the weld.

Weld Anomaly Anomaly in the body or the heat affected zone of a weld.

Yield strength The stress that a material can withstand before it is permanently deformed.

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B.2. Abbreviations

The following abbreviations may occur in the report:

𝐴𝐴 Geometric Parameter

AGM Above Ground Marker 𝑑𝑑 Feature Depth

𝐷𝐷 Pipeline Diameter

𝐸𝐸𝐸𝐸𝐸𝐸 Estimated Repair Factor

GPS Global Positioning System

ILI In-line Inspection

IMU Inertial Measurement Unit

𝐿𝐿 Length of Feature Dimension or Anomaly in Axial Direction

MFL Magnetic Flux Leakage

MOP Maximum Operating Pressure

MAOP Maximum Allowable Operating Pressure

NDE/NDT Non-Destructive Examination / Non-Destructive Testing

𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 Calculated Failure Pressure According to the Defect Assessment Norm

𝑃𝑃𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠 Calculated Safe Operating Pressure According to the Defect Assessment Norm

POD Probability of Detection

POI Probability of Identification

𝑆𝑆𝑆𝑆 Safety Factor

SMYS Specified Minimum Yield Strength

SMTS Specified Minimum Tensile Strength 𝑡𝑡 Nominal Wall Thickness

𝑊𝑊 Feature Width in Circumferential Direction

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 19 of 41

B.3. Nomenclature of Features Events or pipeline features are identified according to the POF [1] specification. A feature may have one of the following definitions followed by the feature identification if applicable.

Table B-1 Type definition Table B-2 Anomaly identification

Abbreviation Definition ADME Additional metal/material AGM Above ground marker ANCH Ground anchor ANOD Anode ANOM Anomaly BEND Bend CASB Casing begin CASE Casing end CPCO Cathodic protection connection CRAB Crack arrestor begin CRAE Crack arrestor end ESUP External support MGNT Reference magnet OFFT Offtake OTHE Other PFIX Pipeline fixture REPA Repair SEAM Seam TEE Tee UNID Unidentified VALV Valve WELD Girth weld

ARCS Arc strike ARTD Artificial defect BUCK Buckle COBA Corrosion band COCL Corrosion cluster CORR Corrosion CRAC Crack DEML Dent with metal loss DENT Dent GOUG Gouging GRIN Grinding GWAN Girth weld anomaly GWCR Girth weld crack HIC Hydrogen induced cracking LAMI Lamination LWAN Longitudinal weld anomaly LWCR Longitudinal weld crack MIAC Pipe mill anomaly cluster MIAN Pipe mill anomaly OTHE Other OVAL Ovality SCC Stress corrosion cracking SPAL Spalling SWAN Spiral weld anomaly SWCR Spiral weld crack WRIN Wrinkle

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Table B-3 Anomaly surface location Table B-4 Anomaly class Abbreviation Definition

EXT External INT Internal MID Mid-wall UNK Unknown

AXGR Axial grooving AXSL Axial slotting CIGR Circumferential grooving CISL Circumferential slotting GENE General PINH Pinhole PITT Pitting

Table B-5 Additional metal/material identification Table B-6 Repair identification

DEBR Debris OTHE Other TMTM Touching metal to metal

COTB Coating begin COTE Coating end CSLB Composite sleeve begin CSLE Composite sleeve end OTHB Other begin OTHE Other end WDPB Weld deposit begin WDPE Weld deposit end WSLB Welded sleeve begin WSLE Welded sleeve end

Table B-7 Seam weld identification Table B-8 Bend identification

LOSE Longitudinal seam NISE Not identifiable seam SMLS Seamless SPSE Spiral seam

FIEL Field FORG Forged MITE Miter OTHE Other

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 21 of 41

B.4. Definition of Clock Position The location of a feature on the circumference of the pipe body is described by its clock position. This defines 12:00 being the top of the pipeline and 6:00 the bottom. The clock position describes the location of the centre of the boxed area holding the anomaly. The clock position is not defined for vertical sections in the pipeline and for features that are fully circumferential.

Figure B-1 Definition of clock position

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 22 of 41

B.5. Deformation + Ovality Calculation All deformations and ovalities are calculated in accordance with the POF 2016 standard [1].

A deformation, or reduction in the cross section of a pipe, is expressed as the reduction in outside diameter. This reduction is calculated using the following equation:

𝐼𝐼𝐼𝐼𝑟𝑟𝑟𝑟𝑟𝑟 − 𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚

𝑂𝑂𝑂𝑂𝑛𝑛𝑛𝑛𝑛𝑛

� × 100%

With:

𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 minimum measured inner radius in the dent

𝐼𝐼𝐼𝐼𝑟𝑟𝑟𝑟𝑟𝑟 local reference measured inner radius

𝑂𝑂𝑂𝑂𝑛𝑛𝑛𝑛𝑛𝑛 nominal outside diameter

The ovality ratio is calculated as follows:

𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂𝑂 = �

𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 − 𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚

𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 + 𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚

�× 100%

With:

𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 minimum measured inner diameter

𝐼𝐼𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 maximum measured inner diameter with the restriction that IDmin and IDmax must be perpendicular to each other.

IDmin

IDmax

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 23 of 41

B.6. Classification of Metal Loss The POF [1] dictates the classification definition for defect geometry as shown in Table .

The geometrical parameters of a metal loss feature are length L, width W and depth d. The reference wall thickness 𝑡𝑡 is the nominal thickness in which the metal loss is present.

The geometrical parameter A is defined as follows:

If 𝑡𝑡 < 10 𝑚𝑚𝑚𝑚 then 𝐴𝐴 = 10

If 𝑡𝑡 ≥ 10 𝑚𝑚𝑚𝑚 then 𝐴𝐴 = 𝑡𝑡

Geometrical metal loss feature classes are defined as shown in Table B-9 and Figure B-2.

Table B-9 Anomaly dimension class definition

Anomaly dimension class Abbreviation Definition General GENE 𝑊𝑊 ≥ 3𝐴𝐴 and 𝐿𝐿 ≥ 3𝐴𝐴 Pitting PITT 1𝐴𝐴 ≤ 𝑊𝑊 < 6𝐴𝐴 and 1𝐴𝐴 ≤ 𝐿𝐿 < 6𝐴𝐴 and 0,5 < 𝐿𝐿 𝑊𝑊⁄ < 2 and not 𝑊𝑊, 𝐿𝐿 ≥ 3𝐴𝐴

Axial grooving AXGR 1𝐴𝐴 ≤ 𝑊𝑊 < 3𝐴𝐴 and 𝐿𝐿/𝑊𝑊 ≥ 2 Circumferential grooving CIGR 1𝐴𝐴 ≤ 𝐿𝐿 < 3𝐴𝐴 and 𝐿𝐿/𝑊𝑊 ≤ 0.5 Pinhole PINH 0 < 𝑊𝑊 < 1𝐴𝐴 and 0 < 𝐿𝐿 < 1𝐴𝐴 Axial slotting AXSL 0 < 𝑊𝑊 < 1𝐴𝐴 and 𝐿𝐿 ≥ 1𝐴𝐴 Circumferential slotting CISL 0 < 𝐿𝐿 < 1𝐴𝐴 and 𝑊𝑊 ≥ 1𝐴𝐴

Figure B-2 Graphical presentation of metal loss anomalies per dimension class

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 24 of 41

B.7. Interaction Rule

Interaction rule for clustering of anomalies is supplied by the customer.

5Interaction Rule with reference to Figure B-3:

a) Flaws are considered interacting if spaced from each other circumferentially (C) and/or longitudinally/Axially (A).

b) Flaws are considered non-interacting if spaced outside of the above dimensions.

Figure B-3 Interacting defect dimensions

A cluster may hold several anomalies, which are indexed individually and can be referred to in the list of clusters. Cluster defect peak depth is dictated by the deepest defect found in the clustered events.

B.8. Remaining Strength Calculation The significance of each metal loss feature is calculated by using the ASME B31G Level 2 RSTRENG, ASME B31G Level 1 Modified and ASME B31G Level 1 Original evaluations [2] for the remaining strength. For an in-depth explanation and limitations of these methods please refer to the norm. The result of the remaining strength calculation is a failure pressure (𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓) and the Failure Pressure Ratio (𝐹𝐹𝐹𝐹𝐹𝐹), or it can be a safe operating pressure (𝑃𝑃𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠) and the Estimated Repair Factor (𝐸𝐸𝐸𝐸𝐸𝐸) [1].

The Failure Pressure Ratio defines the ratio between a calculated 𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 and the current maximum allowable operating pressure

(𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀).

𝐹𝐹𝐹𝐹𝐹𝐹 =

𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓

𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀

The Estimated Repair Factor defines the ratio between the current maximum allowable operating pressure (𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀) and a calculated 𝑃𝑃𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠 .

5 Interaction Rule is listed within the Executive Summary.

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 25 of 41

𝐸𝐸𝐸𝐸𝐸𝐸 =

𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀

𝑃𝑃𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠

The remaining strength calculations are not applied when the defect depth exceeds the 80% of the nominal wall thickness. When defects of this type are found, the FPR value is set to <1.1, and the ERF value is set to >1.0.

For the remaining strength calculation, the following values are required:

𝐿𝐿 Effective length of metal loss 𝑑𝑑 Effective depth of metal loss in mm (or inches) 𝑡𝑡 Pipeline nominal wall thickness in mm (or inches) 𝐷𝐷 Pipeline diameter in mm (or inches)

𝑆𝑆𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 For ASME B31G Level 2 RSTRENG and ASME B31G Level 1 Modified:

Pipeline material flow stress = 𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 + 68.94 𝑀𝑀𝑀𝑀𝑀𝑀 (10000 𝑝𝑝𝑝𝑝𝑝𝑝)

SF Safety factor, also 1/"𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷 𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹𝐹"

The 𝑃𝑃𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠 of each metal loss instance is calculated as follows:

𝑃𝑃𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠 =

𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓

𝑆𝑆𝑆𝑆

Where 𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 is the failure pressure:

𝑃𝑃𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 =

𝑆𝑆𝐹𝐹2𝑡𝑡

𝐷𝐷

Wherein 𝑆𝑆𝐹𝐹 is the estimated failure stress:

1. ASME B31G Level 2 RSTRENG:

𝑆𝑆𝐹𝐹 = 𝑆𝑆𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 �

1 − 𝐴𝐴

𝐴𝐴0

1 − 𝐴𝐴

𝐴𝐴0

∙ 1

𝑀𝑀

2. ASME B31G Level 1 Modified:

𝑆𝑆𝐹𝐹 = 𝑆𝑆𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 �

1 − 0.85 �𝑑𝑑𝑡𝑡�

1 − 0.85 �𝑑𝑑𝑡𝑡� ∙

𝑀𝑀

Wherein 𝑀𝑀 is the Folias or Bulging Factor:

For 𝑧𝑧 ≤ 50, short metal loss features 𝑀𝑀 = (1 + 0.6275 𝑧𝑧 − 0.003375 𝑧𝑧2)1 2�

For 𝑧𝑧 > 50, longer metal loss features 𝑀𝑀 = 0.032 𝑧𝑧 + 3.3

Using: 𝑧𝑧 = 𝐿𝐿2 𝐷𝐷𝐷𝐷⁄

𝐴𝐴0 = 𝐿𝐿 ∙ 𝑡𝑡

𝐴𝐴 = 𝐿𝐿 ∙ 𝑑𝑑

3. ASME B31G Level 1 Original:

For 𝑧𝑧 ≤ 20, short metal loss features 𝑀𝑀 = (1 + 0.8 𝑧𝑧)1 2�

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𝑆𝑆𝐹𝐹 = 𝑆𝑆𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓 �

1 − 2

3 � 𝑑𝑑 𝑡𝑡�

1 − 2 3 � 𝑑𝑑 𝑡𝑡� ∙

𝑀𝑀

For 𝑧𝑧 > 20, longer metal loss features 𝑆𝑆𝐹𝐹 = 𝑆𝑆𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓(1 − 𝑑𝑑/𝑡𝑡)

Using: 𝑧𝑧 = 𝐿𝐿2 𝐷𝐷𝐷𝐷⁄

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 27 of 41

B.9. Inertial Mapping Measurement

Triple axis gyroscopic measurement

Sampling frequency 450 Hz

Dynamic range ± 450 º/sec

Bias stability 0.75 º/hr

Angular random walk 0.1 º/√hr

Triple axis acceleration and gravity measurement

Sampling frequency 450 Hz

Acceleration range ± 5 g

Accuracy 2 mg

Mapping

Velocity range 1.0−5.0 m/s

Maximum distance between AGMs 6 2 km

Maximum total bend angle between AGMs6 300 º

Minimum required DGPS accuracy at AGMs 0.1 m

Horizontal accuracy at 80% certainty 7 < 3 m

Vertical accuracy at 80% certainty 8 < 2 m

6 AGM locations must be agreed upon prior to the inspection run 7 Depending on tool velocity 8 Requires depth of cover at AGMs

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 28 of 41

B.10. AGM location requirements and specifications

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Appendix C Tool Data Sheet and Technology Specification

C.1. Tool Data Sheet

Tool Serial Number MFL 0030 BB 03

Date 2024-10-03

Technical Data Sheet

Magnetic Flux Leakage Inspection Tool 30’’ + IMU

General

One-directional design

Tool length 63.1 in

Weight 1560 lbs

Number of bodies 1

Inertial unit type 3D & Inertial mapping

Max. operating time at 60 °F 52 hrs

Max. pipeline length 465 mi

Max. standard pressure 1450 psi

Data storage capacity 1024 GB

Transmitter time 250 hrs

Battery Type Li-SOCI2 D-cell

Pipeline specifications

Pipeline size 30 in

Max. bore in straight pipe 30 in

Min. bore in straight pipe 23.5 in

Min. bend radius 1.5 D

Min. bore in min. bend 28.35 in

Min. bend to bend distance Back-to-back

Min. center distance between full bore tees 47.25 in

Max. tee diameter barred 30 in

Max. tee diameter unbarred 0.5 D

Measurement specifications

Magnet Type Wheel-supported magnetic yokes

Direction of magnetisation Axial

Max. axial sampling frequency 1666 Hz

Primary sensor measurement type Tri-axis Hall

Number of Hall sensors 1056

Nominal circumferential Hall sensor spacing 0.20 in

Wall thickness range for specified accuracy 0.35-0.846 in

Min. magnetic field strength at inner pipe surface for specified POD and accuracy 10 kA/m

Internal/External (ID/OD) discrimination Eddy current based

Number of ID/OD sensors 88

Max. circumferential ID/OD sensor spacing 0.79 in

Pressure measurement accuracy ± 14.5 psi

Temperature measurement accuracy ± 3.6 °F

Location accuracy (at 90% certainty)

Odometers 3 channels

Accuracy of distance 0.1 %

Accuracy to girth weld 0.33 ft

Accuracy of circumferential position ± 5 °

Recommended Tool operating conditions

Velocity range for specified accuracy 0.2 – 9 mph

Min. back pressure fluid 90 psi

Min. back pressure gas 220 psi

Required differential launch pressure 20 psi

Temperature range 32 - 150 °F

Min. Trap Dimensions

Ref Description Launch [inch] Receive [inch] A Trap door to reducer 64 75 B Trap door to kicker line 15 15 C Reducer length 15 15 D Length of reducer to valve 10 64

E Minimum internal diameter

31 31

W Work area 100 100 L Work area 100 100

Tool Serial Number CAL 0030 BA 00

Date 2024-10-03

Technical Data Sheet

Caliper Inspection Tool 30’’

One-directional design

Tool length 58 in

Weight 770 lbs

Number of bodies 1

Inertial unit type 3D & Inertial standard

Max. operating time at 60 °F 60 hrs

Max. pipeline length 300 mi

Max. standard pressure 1450 psi

Data storage capacity 64 GB

Transmitter time 250 hrs

Battery Type Li-SOCI2 D-cell

Pipeline specifications

Pipeline size 30 in

Max. bore in straight pipe 30 in

Min. bore in straight pipe 22.8 in

Min. bend radius 1.5 D

Min. bore in min. bend 26.4 in

Min. bend to bend distance Back-to-back

Min. center distance between full bore tees 70 in

Max. tee diameter barred 30 in

Max. tee diameter unbarred 0.5 D

Measurement specifications

Number of channels 36

Max. axial sampling frequency 1666 Hz

Center to center distance of primary sensors 2.62 in

Sensor width 1.65 in

Pressure measurement accuracy ± 14.5 psi

Temperature measurement accuracy ± 3.6 °F

Location accuracy (at 90% certainty)

Odometers 3 channels

Accuracy of distance 0.1 %

Accuracy to girth weld 0.33 ft

Accuracy of circumferential position ± 5 °

Recommended tool operating conditions

Velocity range for specified accuracy 0.2 - 9 mph

Min. back pressure fluid 85 psi

Min. back pressure gas 220 psi

Required differential launch pressure 15 psi

Temperature range 32 - 150 °F

Min. Trap Dimensions

Ref Description Launch [inch] Receive [inch] A Trap door to reducer 59 70 B Trap door to kicker line 15 15 C Reducer length 15 15 D Length of reducer to valve 10 59

E Minimum internal diameter

30.5 30.5

W Work area 75 75 L Work area 75 75

14000 Rev00 Final Inspection Report UNCONTROLLED IF PRINTED 30 of 41

C.2. MFL Accuracy Specification Data Sheet www.pipesurveyinternational.com / info@pipesurveyinternational.com / +31 (0)78 610 1428 Pipesurvey International CV reserves the right to change specifications without prior notice.

Axial MFL Sizing Accuracy and

Detection Data Sheet

Version 1.8

May 2024

The following specifications are given for the recommended operating conditions in line pipe as stated in the Tool Technical Data sheets. Results for any inspection performed outside the stated recommended operating conditions are to be considered advisory.

Reporting threshold is taken at 90% POD.

Table A Identification of features

Feature or Characteristic

POI

Applicable Sizing Accuracy tables Yes

POI >90%

Possibly

50%<POI<90%

No

POI <50%

Internal / External discrimination ◼ Table D

Additional metal / Material

− Debris ◼

− Touching metal to metal ◼

− Close metal object ◼

Anomaly

− Arc strike ◼ Tables B-1, B-2, B-3

− Artificial defect ◼ Tables B-1, B-2, B-3

− Blister ◼ -

− Buckle global ◼

− Buckle local ◼

− Bulge ◼

− Coating disbondment ◼

− Corrosion ◼ Tables B-1, B-2, B-3

− Corrosion cluster ◼ Tables B-1, B-2, B-3

− Corrosion related to CRA ◼

− Crack ◼

Table C

− Crack-like ◼

− Crack cluster ◼

− Dent complex ◼ http://www.pipesurveyinternational.com/ mailto:info@pipesurveyinternational.com

Axial MFL Sizing Accuracy and

Detection Data Sheet

Version 1.8

May 2024

Feature or Characteristic

POI

Applicable Sizing Accuracy tables Yes

POI >90%

Possibly

50%<POI<90%

No

POI <50%

− Dent cycled ◼

− Dent kinked ◼

− Dent plain ◼

− Dent re-rounded ◼

− Dent with metal loss ◼

− Gouge ◼ Tables B-1, B-2, B-3

− Gouge cluster ◼ Tables B-1, B-2, B-3

− Grinding ◼ Tables B-1, B-2, B-3

− Girth weld crack ◼

− Girth weld anomaly ◼ Table B-3

− Hard spot ◼

− Lamination ◼

− Lamination surface breaking ◼

− Longitudinal weld crack ◼

− Longitudinal weld anomaly ◼ Table B-3

− Mill anomaly ◼ Tables B-1, B-2, B-3

− Mill anomaly cluster ◼ Tables B-1, B-2, B-3

− Ovality ◼

− Ripple/Wrinkle ◼

− Roof topping ◼

− Selective Seam Weld Corrosion ◼ Table B-3

− SCC (Stress Corrosion Cracking) ◼

− Spalling ◼

− Spiral weld crack ◼

− Spiral weld anomaly ◼ Table B-3

Component

Axial MFL Sizing Accuracy and

Detection Data Sheet

Version 1.8

May 2024

Feature or Characteristic

POI

Applicable Sizing Accuracy tables Yes

POI >90%

Possibly

50%<POI<90%

No

POI <50%

− Anode ◼

− Casing ◼

− Eccentric casing ◼

− CP connection ◼

− External support ◼

− Flange ◼

− Ground anchor ◼

− Off take ◼

− Pipeline fixture ◼

− Tee ◼

− Valve ◼

Markers ◼

− Above Ground Marker ◼

− Reference magnet ◼

Repair

− Welded sleeve ◼

− Composite sleeve ◼

− Weld deposit ◼

− Coating ◼

− Crack arrestor ◼

Weld ◼

− Bend ◼

− Buckle arrestor ◼

− Change in diameter ◼

− Change in wall thickness ◼

− Adjacent tapering ◼

− Longitudinal seam weld ◼ Table G

Axial MFL Sizing Accuracy and

Detection Data Sheet

Version 1.8

May 2024

Feature or Characteristic

POI

Applicable Sizing Accuracy tables Yes

POI >90%

Possibly

50%<POI<90%

No

POI <50%

− Spiral seam ◼ Table G

− Seamless ◼ Table G

Axial MFL Sizing Accuracy and

Detection Data Sheet

Version 1.8

May 2024

Table B-1 Sizing Accuracy in Longitudinally Welded pipe at 80% certainty

Sizing accuracy in Longitudinally Welded pipe at 80% certainty metal loss Pitting Axial Grooving

Circumferential Grooving

Pinhole Axial Slotting Circumferential

Slotting

Depth at POD=90% 5% t 10% t 15% t 5% t 20% t * 20% t 10% t

Depth sizing accuracy ±10% ±10% ±15% ±10% ±15% ±20% ±15%

Length sizing accuracy ±0.394” ±0.276” ±0.394” ±0.276” ±0.276” ±0.394” ±0.276”

Width sizing accuracy ±0.591” ±0.472” ±0.472” ±0.591” ±0.472” ±0.472” ±0.591”

Minimum pinhole diameter at POD if depth >50%t 0.276”

*Minimum pinhole diameter at POD if depth >20%t 0.394”

Table B-2 Sizing Accuracy in Seamless Pipe at 80% certainty

Sizing Accuracy in Seamless pipe at 80% certainty

General metal loss Pitting

Axial Grooving

Circumferential Grooving

Pinhole Axial Slotting Circumferential

Slotting

Depth at POD=90% 10% t 15% t 20% t 10% t 25% t* 25% t 15% t

Depth sizing accuracy ±12% ±12% ±20% ±10% ±20% ±20% ±15%

Length sizing accuracy ±0.394” ±0.394” ±0.394” ±0.394” ±0.276” ±0.394” ±0.394”

Width sizing accuracy ±0.591” ±0.591” ±0.591” ±0.591” ±0.591” ±0.591” ±0.591”

*Minimum pinhole diameter at POD if depth >25%t 0.394”

Axial MFL Sizing Accuracy and

Detection Data Sheet

Version 1.8

May 2024

Table B-3 Detection and Sizing Accuracy for metal loss anomalies in Weld, Heat affected Zone) and Weld affected area at 80% certainty

Sizing accuracy in Weld, HAZ and Weld affected area at 80% certainty

General metal loss Pitting Axial Grooving

Circumferential Grooving

Pinhole Axial Slotting Circumferential

Slotting

Depth at POD=90% 15% t 20% t 25% t 15% t 30% t* 30% t 20% t

Depth sizing accuracy ±12% ±12% ±20% ±10% ±20% ±20% ±15%

Length sizing accuracy ±0.394” ±0.394” ±0.394” ±0.394” ±0.276” ±0.394” ±0.276”

Width sizing accuracy ±0.591” ±0.591” ±0.591” ±0.591” ±0.591” ±0.591” ±0.591”

*Minimum pinhole diameter at POD if depth >30%t 0.394”

Table C Crack detection and detection of crack like features at 80% certainty

Crack detection and detection of crack like features at 80% certainty

Axial crack Crack colony Circumferential…