This program is subject to change without notice
Professional Institute of
Pipeline Engineers - PIPE
In the Foyer
Doug Batzel, Galaxy Brushes, Moosic, PA, USA
This paper contrasts the different types of brushes used in utility pipeline pigging, and in ILI on MFL pigs. The various brush constructions will be presented along with their advantages and disadvantages. While there are many pig designs, in the end it is the brush that produces the desired result, a clean and inspectable pipeline. Thus, understanding how brushes work and their relative effectiveness is important, particularly in treating black powder, MIC, and pipeline pits.
Andrew P Strong et al., Schlumberger, Southampton, UK, and
Dr Norman Sanderson, BP Exploration, Sunbury, UK
The paper describes an innovative pipeline integrity monitoring system. The system uses novel optical fiber distributed sensors to provide simultaneous distributed measurements of temperature, strain and vibration for the detection, monitoring, and location of events including:
Pipeline Engineering, Catterick, UK
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C Lyons and Dr Jane HAaswell,
Pipeline Integrity Engineers,
Dr Phil Hopkins, Penspen Integrity, Newcastle, UK
R Ellis, Shell UK, Stanlow, UK
N Jackson, National Grid, Warwick, UK
The United Kingdom Onshore Pipeline Operators Association (UKOPA) is developing supplements to the UK pipeline codes BSI PD 8010 and IGE/TD/1. These supplements will provide a standardized approach for the application of quantified risk assessment to pipelines. UKOPA has evaluated and recommended a methodology: this paper covers the background to, and justification of, this methodology.
The most relevant damage mechanism in pipeline failure is external interference. Interference produces a gouge, dent or a dent-gouge. This paper describes the fracture mechanics model used to predict the failure probability of pipelines containing dent and gouge damage. It contains predictions of failure frequency obtained using the gas industry failure frequency prediction methodologies FFREQ and operational failure data from the UKOPA fault database. The failure model and prediction methodology are explained, and typical results are presented and discussed.
Eric Freeman, Robert Strong and Colin Drysdale, TD Williamson, Houston, TX, USA
This paper outlines performance characteristics and field testing results for a new Speed Reducing Pig which utilizes high bypass flow through the pig body to reduce travel speed while incorporating an inertia/flow actuated valve to minimize stalling and surging. Many common cleaning elements can be installed on the pig, while the high bypass flow improves the effectiveness of cleaning operations by suspending large amounts of debris in the flow well out in front of the pig. The tool provides highly efficient maintenance pigging without the need to reduce product flow rates.
Enbridge, Edmonton, AB, Canada
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Luis Sánchez Graciano, Gerente de Transporte por Ducto,
Subdirección de Distribución de Petróleos Mexicanos (Pemex), Mexico
Todd Porter and Mark Smith, Geospatial Corp, Houston, TX, USA
Pipeline Integrity Management for gas distribution pipelines will soon become an extension of the PHMSA-DOT regulations. The threats are similar but the consequences high due to population density of end users. Therefore, as was required through the National Pipeline Mapping System, the need for accurate location of the lines and a management framework will be required. This presentation will cover relevant technologies such as ILI mapping tools, ground penetrating radar (GPR), oblique aerial imagery, and horizontal directional drilling.
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Dr Chris Alexander, Stress Engineering Services, and Arthur Prayther, Rosen Inspection, Houston, TX, USA
The paper outlines a systematic approach for evaluating damaged pipeline using ILI data. The authors offer a case study that used data collected during an ILI run of a damaged subsea pipeline. The assessment included development of finite element models using geometric ILI data. The assessment integrated actual pressure history data in conjunction with a cumulative damage assessment model to determine the remaining life of the selected anomalies. It also utilized prior full-scale experimental data to confirm the accuracy of the models.
Michael McGee, Rosen, Houston, TX USA
Joe Campos, BP, Anchorage, AK USA
High-resolution MFL and UTWM ILI tools have been around for a long time. Most of us understand that the technologies have complementary strengths and weaknesses in detection and sizing capabilities. For example, MFL offers better detection capabilities for small pitting anomalies while UTWM is better at measuring general wall thinning. The inherent imperfections of the approaches can sometimes leave you guessing about what might be missing from your data.
BP Alaska and Rosen partnered in 2008 to identify a candidate pipeline to test a combination MFL-UTWM tool, RoCorr-UT. This paper discusses the successful run of the tool through BP's 28-mile crude line from Endicott Island to Pump Station #1.
Andrew Bain, Mauricio Palomino, and Chris Pollard, GE Oil & Gas PII Pipeline Solutions, Houston, TX, USA
The paper will focus on the next generation of single-run multi-mission inline inspection tools and analysis techniques - from design, to laboratory testing through to field application, and analysis of real pipeline data. This should give pipeline operators a better understanding of how new technology can help exceed comfortably the 90% confidence threshold set by 20th century ILI tools.
This paper will look at:
Held in the exhibition area.
BJ Systems & Services
Self Excited Eddy Currents (SEEC) present a unique and novel method for internal in-line inspection of natural gas transmission pipelines for the presence of features aligned with the main pipe axis such as Stress Corrosion Cracking (SCC). This paper outlines the theory, methodology and basic design principles of an SEEC based tool. Initial field trials and results are presented
Dr V Kanaykin, Dr B Patramanskiy,
and Dr V Loskutov,
Spetsneftegaz, Moscow, Russia
Chris Paul, Joyce Paul, Tulsa, OK, USA
The presentation will review the legal issues and the demands that pipeline integrity programs place upon operators including data integration and records retention, and a discussion of how these issues and demands may result in misinterpretation and misuse of data and documents. The bases for management and company exposure will be discussed, as will the criteria used by the government for determining whether or not information within the knowledge of the company might result not only in simple liability, but also the possibility of criminal exposure. The presentation will review solutions to the legal issues, including how to deal with improved ILI tools which provide tremendous amounts of data that must be captured and integrated with other information involving the operator's pipeline systems.
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Dr. John Beavers and Patrick Vieth, CC Technologies/DNV, Dublin, OH, USA and
The pipeline industry is undertaking considerable research to determine the best approach to manage the potential for internal stress corrosion cracking (SCC) to occur while transporting ethanol and fuel grade ethanol. The parameters that affect the potential for SCC (e.g., oxygen, water, etc.) are understood, and the research is now focused on methods to reduce the likelihood of SCC. The current state of the research and testing will be presented
Edmonton, AB, Canada
This paper provides an overview of an ongoing research project, sponsored by the Pipeline Research Council International (PRCI), which is developing a reliability-based process that will form the basis for an industry-accepted approach to assessing and managing pipeline integrity with respect to corrosion. It also discusses the sources of uncertainty inherent in the in-line inspection process and their significance in the context of corrosion reliability analysis.
The panel will discuss benefits of standardizing procurement contracts to allow more focus on correct tool selection and performance criteria.
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Dr. Slava Timashev, Russian Academy of Sciences Ekaterinburg, Russia
Real ILI data was analyzed with a sophisticated and rigorous algorithm developed using Monte Carlo simulation. The data was gathered from ILI runs on three continents. The research results point the way toward a new generation of ILI and DA/Verification tools combining sophisticated statistical analysis of the data obtained using these tools and suggested improvements to API RP1163.
Ziad A Saad, Kim J McCaig, and Brenda Kenny, CEPA, Calgary, AB, Canada
In 2007, the Canadian Energy Pipeline Association (CEPA) published a report titled ‘Integrity First'. This document strives to achieve two goals: (1) for the pipeline industry to communicate performance with its stakeholders and regulators in the areas of pipeline integrity, health and safety, and environmental performance; and (2) to define performance success quantitatively with appropriate metrics and statistics. This paper will focus on discussing the second goal – most specifically, on how voluntary reporting of performance metrics is a necessity in an era of goal-based regulations.
Rafael G Mora, Dr. Alan Murray, Joe Paviglianiti, and Sara Abdollahi, NEB, Calgary, AB, Canada
Many pipeline standards and regulations refer to fitness for service assessments without providing much detail as to their expected extent or proof of adequacy. This paper discusses measurement, modeling, and interpretation errors that could affect the validity of integrity assessments. A case study identifies the uncertainty effects of in-line inspection accuracies during the criticality assessment of reported metal loss anomalies that could fail by leak or rupture. Technical approaches are proposed on how to deal with uncertainty in the development of integrity verification and rehabilitation programs when using in line inspection data.
Mears Group, San Ramon, CA, USA
Dr Kimberly Cameron and Dr Alfred Pettinger, Exponent Failure Analysis, Menlo Park, CA, USA
Some pipeline systems are subjected not only to internal pressure but also to significant external loads. These loads can well exceed the axial pressure load and present a much greater risk for circumferential welds and cracks. This paper addresses the appropriate fracture mechanics needed to assess circumferential cracks under axial loads and summarizes current inspection capabilities for circumferential defects. Specific examples from a pipeline buried in an active landslide region are given as well as a general review of the available inspection tools and appropriate fracture mechanics.
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