Download or read book Water Pipeline Condition Assessment written by Utility Engineering and Surveying Institute (American Society of Civil Engineers). Task Committee on Water Pipeline Condition Assessment and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOP 134 provides water utilities with an appropriate path for adequately determining the structural status of an individual transmission pipeline or pipeline system.

Download or read book EcoWater Solutions Ltd Pipeline Condition Assessment Report written by City Design (Firm) and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pipeline Condition Assessment written by City Design (Firm) and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Workshop on Condition Assessment Inspection Devices for Water Transmission Mains written by K. Lillie and published by American Water Works Association. This book was released on 2005-05-31 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many water utilities have only a limited knowledge of the structural condition of their underground assests. In order to maintain optimum serviceability, it is increasingly important that utilities gain a better understanding of the current condition and performance of these buried assets. Regular inspection and condition assessment of pipelines can greatly assist utilities with developing robust and cost-effective operational maintenance programs, which will optimize capital expenditure whilst minimizing risk. The aim of the project was to conduct a state-of-the-art literature review of non-interruptive condition assessment inspection devices for large diameter transmission mains (greater than 12 inches). In addition, an expert panel workshop was to be held to review business needs and drivers, the performance of existing technologies, and future underground asset condition assessment research needs. Originally published by AwwaRF for its subscribers in 2004.

Download or read book Concrete Pressure Pipe 3rd Ed written by American Water Works Association and published by American Water Works Association. This book was released on 2008 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concrete pressure pipes in potable water service.

Download or read book Pipelines 2011 written by American Society of Civil Engineers and published by Amer Society of Civil Engineers. This book was released on 2011-07-22 with total page 1500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Pipelines 2011 Conference, held in Seattle, Washington, July 23-27, 2011. Sponsored by the Pipeline Division of ASCE. This collection contains 135 peer-reviewed technical papers that discuss new solutions to some of the most critical infrastructure issues involving pipelines. The U.S. water and wastewater infrastructure systems are continuing to deteriorate. The recent economic downturn has increased the gap between current and required levels of funding. These serious financial constraints highlight the urgent need for creative and innovative solutions to improve our water and wastewater infrastructure systems. From the technical perspective, cost effective materials, proper planning, new design methods, innovative construction technologies, and advanced condition assessment technologies must be more aggressively developed, tested, and introduced to the industry. From the management perspective, optimal use of financial resources, smart and carefully crafted decision making processes on maintenance, rehabilitation and replacement activities must be made available, applied by and used by water and wastewater infrastructure agencies.

Download or read book Leak Detection and Condition Assessment for Water Distribution Pipelines Using Fluid Transient Waves written by Jinzhe Gong and published by . This book was released on 2013 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The focus of this PhD research is to develop non-invasive and cost-effective techniques for assessing the structural condition of pressurised pipelines using fluid transient pressure waves. The specific objectives include the detection of leaks and localised deterioration that is distributed along a pipeline, such as extended sections of corrosion or the spalling of cement lining. The latter is described by pipeline condition assessment in this thesis. The transient behaviour of a leak is studied in the frequency domain. Numerical studies conducted in this research demonstrate that two leak-induced patterns (on the resonant and the anti-resonant responses) can exist in a frequency response diagram (FRD). The amplitudes of the responses are related to the impedance of the valve in a reservoir-pipeline-valve (RPV) system. A new leak detection technique has been developed in this research based on the further understanding of the leak-induced patterns. This technique uses the relative sizes of the first three resonant responses to determine the location and size of a single leak in RPV systems. In reservoir-pipeline-dead end systems, the information required for single event leak detection is further reduced to the first two resonant responses. A new measurement strategy for the extraction of the FRD of single pipelines is proposed in this research. The boundary valve loss is used to adjust the amplitude of the leak-induced pattern on the resonant responses and also the sharpness of the resonant peaks. A specific type of pseudo-random binary sequence (PRBS) termed the inverse repeat sequence (IRS), is used as the excitation signal. The antisymmetric property of IRS enables part of the nonlinear responses of the system under excitation to be cancelled out, yielding a measured FRD close to the theoretical linear system response. A side-discharge valve based transient generator is designed and fabricated in this research to implement the new FRD measurement strategy. Laboratory experiments are conducted on an intact pipeline and a pipeline with a leak. This research also conducts analysis of the characteristics of distributed pipe wall deterioration and develops new detection techniques. In a measured pressure trace, the size of the reflection resulting from a section of pipeline with a change in wall thickness is indicative of the characteristic impedance of this section. Once the impedance of this section is determined, the wave speed and wall thickness can be estimated. A technique for the detection of a single deteriorated section in pipelines is developed based on the above analysis. Two other condition assessment techniques are developed to deal with the complexities induced by multiple deteriorated sections. The first technique is termed reconstructive MOC (method of characteristics) analysis, which uses the pressure trace measured at the upstream face of the valve in a RPV system to determine the distribution of the impedance along the pipeline. The algorithm reconstructs a MOC grid by calculating the MOC compatibility equations backwards in time, estimating the properties of the pipeline (impedance, wave speed) and the length of each pipe reach as discretised by the MOC grid from the valve towards the reservoir. Preliminary experimental verification is conducted to verify the applicability of the new technique. The second technique is reconstructive transient analysis (RTA), which can be conducted at any interior accessible points along a pipeline, and does not require a RPV boundary condition. The RTA uses two pressure transducers in close proximity to measure two transient pressure traces in one test. A signal processing algorithm is developed to extract the directional transient waves (traveling upstream and downstream). The use of the directional transient waves enables the step response function (SRF) of the section of pipe upstream or downstream of the paired pressure transducers to be obtained. The reconstructive MOC analysis is then adapted to interpret the SRF to yield the distribution of the impedance, from which the location and severity of distributed deterioration can be identified." -- abstract, pages v-vi.

Download or read book Water and Wastewater Pipeline Assessment Technologies written by Justin Starr and published by CRC Press. This book was released on 2021-05-31 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water and wastewater infrastructure are a somewhat invisible, yet critical, part of modern life. Incredibly, many buried assets have been in service for 50-100 years and are still in good condition. Conversely, other systems fail well before their predicted design lives, causing property damage, injury, and even loss of life. In many cases, early detection could have prevented catastrophic failure, and understanding the state of underground infrastructure has become a key priority for many municipalities. Industry has responded with a number of new and innovative technologies for condition assessment, however, understanding these tools can be difficult, as many vendors treat their proprietary systems as trade secrets. Water and Wastewater Pipeline Assessment Technologies: Classification Systems, Sensors, and Results Interpretation provides a thorough guide to the technical workings of some of the most popular water and wastewater assessment technologies available, including CCTV crawlers, acoustic listening devices, laser sensors, 360 ̊ video cameras, pipe penetrating radar, and more. Features: Presents an overview of current technologies in CCTV inspection, including next generation video formats, high-definition resolution, and fisheye/sidescan technology. Provides helpful tips and tricks to cut through technical jargon and identify the technological specifications to compare between multiple vendors. Examines the pros and cons of competing technologies including laser and lidar, and provides an overview of unique approaches such as Pipe Penetrating Radar, Focused Electrode Leak Location, and more. Highlights the importance of coding standards, data management, and software tools that can be leveraged to create a successful asset management program. Water and Wastewater Pipeline Assessment Technologies: Classification Systems, Sensors, and Results Interpretation provides a mixture of theory and real-world, practical considerations ranging from deployment tips and data exchange formats to the technical limitations of different technologies. The book is a valuable resource for municipal employees, project engineers, and others involved in designing and implementing major inspection programs.

Download or read book Pipelines 2020 written by J. Felipe Pulido and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Selected papers from Pipelines 2020, held in San Antonio, Texas, August 9-12, 2020. Sponsored by the Utility Engineering and Surveying Institute of ASCE.This collection contains 65 peer-reviewed papers on the condition assessment, construction, rehabilitation, and trenchless installation of pipelines.Topics include: trenchless rehabilitation; condition assessment; siphons; tunneling; horizontal directional drilling (HDD); and construction project case studies.This valuable resource for practitioners and researchers covers the most current state-of-the-art engineering technologies for pipeline and utilities infrastructure and engineering surveying

Download or read book Fuzzy based Condition Assessment Model for Offshore Gas Pipelines written by Mosleh Fadi and published by LAP Lambert Academic Publishing. This book was released on 2015-08-04 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Condition assessment of oil and gas pipelines is a significant component in pipeline operations and maintenance. Such assessments are used to ensure better decisions for repair and/or replacement to reduce pipelines' failure possibilities. Therefore, it is essential to have an effective condition assessment model for pipelines as their failure incidents may lead to catastrophic economical and environmental consequences. Current practices of assessing gas pipelines condition can be considered simplified for the intended purpose. They mainly depend on experts' opinions in interpreting inspection data. This process is influenced by the human subjectivity and reasoning uncertainty. To address the weaknesses of the current practices, this book proposes a new fuzzy-based methodology that utilizes integrated analytic network process (ANP) and hierarchical evidential reasoning (HER) to develop a meticulous condition assessment model for offshore gas pipelines. The proposed model is validated using historical inspection reports that are obtained from a local pipeline operator in Qatar. After validation, the model is found to deliver satisfactory outcomes in assessing pipelines condition.

Download or read book Pipeline Risk Assessment written by W. Kent Muhlbauer and published by . This book was released on 2015-02-01 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: The optimum management of risks emerges from the best understanding of risks. Risk understanding is now available to all, via efficient and intuitive risk assessment. This book presents the definitive approach to assessing risks from pipelines?an approach that overcomes the limitations of previous methodologies.As the definitive approach, the methodology must:*Provide clarity?generating immediately useful information to decision-makers*Be comprehensive and complete*Capture and integrate real world processes*Dispel myths arising from risk assessment past practice*Remove unnecessary complexity that interferes with understanding risk*Be cost-effective to create, apply, and manage.As with the author?s previous works, the recommended methodology detailed here is a practical, easy-to-apply approach to measuring risks associated with operating any type of pipeline in any environment. Risk assessment need not be a complex academic exercise. It should be a straightforward practice, used by ? and useful to ? any and all stakeholders in a pipeline?s operation.Some specific features of the definitive approach include:*The three critical determinants of failure probability?exposure, mitigation, resistance.*Using inspection information directly, intuitively, and efficiently in a risk assessment.*Measuring damage potential separately from failure potential.*Automatic and intuitive incorporation of interacting threats?weaknesses overlapping failure mechanisms.*The role of time-to-failure estimation in modeling corrosion and cracking.*Using hazard zones to understand potential consequence scenarios.*Representing all possible consequence scenarios with a manageable set.*The best use?not the most common use?of historical incident statistics*The essential role of the risk profile?proper risk management cannot occur without it.*Conservatism?both P50 and P90+ risk assessments are needed.*Making the risk assessment readily expandable?it should ?get smarter? as new knowledge becomes available.Herein lies essential guidance for keeping pipelines safe: Improving risk knowledge, leading to superior risk management, leading to safer pipelines.

Download or read book Pipelines 2019 written by Jeffrey W. Heidrick and published by . This book was released on 2019 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains 75 peer-reviewed papers on condition assessment, construction and rehabilitation of pipelines. Topics include: condition assessment and trenchless rehabilitation; construction case studies; corrosion control; and tunneling and horizontal directional drilling. This collection will be of interest to utility and pipeline owners, design and consulting engineers, contractors, manufacturers, suppliers, researchers, and pipeline professionals.

Download or read book Reliability and Maintainability of In Service Pipelines written by Mojtaba Mahmoodian and published by Gulf Professional Publishing. This book was released on 2018-06-13 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliability and Maintainability of In-Service Pipelines helps engineers understand the best structural analysis methods and more accurately predict the life of their pipeline assets. Expanded to cover real case studies from oil and gas, sewer and water pipes, this reference also explains inline inspection and how the practice influences reliability analysis, along with various reliability models beyond the well-known Monte Carlo method. Encompassing both numerical and analytical methods in structural reliability analysis, this book gives engineers a stronger point of reference covering both pipeline maintenance and monitoring techniques in a single resource. Provides tactics on cost-effective pipeline integrity management decisions and strategy for a variety of different pipes Presents readers with rational tools for strengthening and rehabing existing pipelines Teaches how to optimize materials selection and design parameters for designing future pipelines with a longer service life

Download or read book Degradation Assessment and Failure Prevention of Pipeline Systems written by Gabriella Bolzon and published by Springer Nature. This book was released on 2020-09-10 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the results of the research project G5055 'Development of novel methods for the prevention of pipeline failures with security implications,' carried out in the framework of the NATO Science for Peace and Security program, and explores the lifecycle assessment of gas infrastructures. Throughout their service lives, pipelines transporting hydrocarbons are exposed to demanding working conditions and aggressive media. In long-term service, material aging increases the risk of damage and failure, which can be accompanied by significant economic losses and severe environmental consequences. This book presents a selection of complementary contributions written by experts operating in the wider fields of pipeline integrity; taken together, they offer a comprehensive portrait of the latest developments in this technological area.

Download or read book Primer on Condition Curves for Water Mains written by U S Environmental Protection Agency and published by CreateSpace. This book was released on 2014-08-01 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of economical tools to prioritize pipe renewal based upon structural condition and remaining asset life is essential to effectively manage water infrastructure assets for both large and small diameter pipes. One tool that may facilitate asset management is a condition curve. A condition curve is a graphical representation of the condition of a pipeline versus time. This report provides a review of the state-of-the-technology for structural/physical condition curves for water mains. Various models are summarized such as break frequency curves, deterioration/decay/survival curves, condition rating curves and condition rating indices, and serviceability/performance curves. This report also provides new case study information on how condition curves are used by utilities for managing their water infrastructure based upon a survey of nine utilities. The utilities that were surveyed for these case studies used methods that ranged from very detailed asset management programs that combine inspection, monitoring, and test data with their pipeline condition assessment program to simple analyses of pipe break history to prioritize pipeline renewal activities. The review also discusses short-term and long-term research needs for further development of a performance-based buried infrastructure asset management approach to improve the quality and quantity of data used by all utilities.

Download or read book Fuzzy based Condition Assessment Model for Offshore Gas Pipelines in Qatar written by Fadi Mosleh and published by . This book was released on 2015 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Condition assessment of offshore gas pipelines is a key player in pipeline operations and maintenance. They are used to ensure better decisions for repair and/or replacement and reduce failure possibilities. Information obtained from pipelines assessments are regularly used for scheduling upcoming maintenance and inspection activities. Therefore, it is valuable to have effective condition assessment of pipelines because failure incidents could lead to catastrophic economical and environmental consequences. Furthermore, current practices of assessing gas pipelines condition are considered too primitive and simplified. They mainly depend on experts' opinions in interpreting inspection data where the process is influenced by the human subjectivity and reasoning uncertainty. In another way, they need the detailed knowledge on translation of raw inspection data into valuable information. This will surely lead to decisions lacking thorough and extensive review of the most influential aspects on pipelines condition. To redress the weaknesses of the current practices and promote the performance of assessing offshore gas pipelines condition, this research proposes a new fuzzy-based methodology that utilizes hierarchical evidential reasoning (HER) for meticulous condition evaluation under subjectivity and uncertainty. The principle behind the posed structure is to establish an enhanced mechanism for the aggregation of different evidence bodies at multiple hierarchical levels in order to attain a reliable and exhaustive pipeline condition assessment. The essential characteristics of the proposed methodology are recapped in the following points. Firstly, the new approach suggests a more comprehensive hierarchy of the most influential factors affecting pipeline condition under three categories: physical, external, and operational. Secondly, this methodology is designed to consider the relative importance weights of all assessment factors in the hierarchy and to account for interdependencies among compared attributes. Thirdly, a hierarchical belief structure that utilizes evidential reasoning and fuzzy set theory is applied to grasp the uncertainty in pipeline evaluation. A model that utilizes HER can help combine different bodies of evidence at different hierarchical levels using Dempster-Shafer (D-S) rule of combination to obtain a detailed pipeline assessment. Fourthly, a condition assessment scale associated with rehabilitation actions is introduced as a framework for professionals to plan for future inspection and rehabilitation works. Finally, an automated, user-friendly, tool is developed for the propounded model to assess pipeline condition. Multiple sources of data were reached to provide a reliable assessment of pipe condition through the use of a structured questionnaire distributed among professionals in oil and gas industry in the studied region. This proposed model is compared and validated with historical inspection reports that were obtained from a local pipeline operator in Qatar. It is found that this model delivers satisfactory outcomes and forecasts offshore gas pipeline condition with an Average Validity Percent (AVP) of 97.6%. The developed fuzzy-based methodology is believed to offer a reliable condition assessment that optimizes data interpretation and usage of structured algorithms. Additionally, the introduced model and tool are compatible to researchers and practitioners such as pipeline engineers and consultants in order to prioritize inspection and rehabilitation for existing offshore gas pipelines. This immensely pictures the essence of infrastructure management to ameliorate cost and time optimization.

Download or read book Pipelines 2018 written by Christopher C. Macey and published by . This book was released on 2018 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This collection contains 87 peer-review papers on construction, condition assessment, and rehabilitation of pipelines. Topics include: risk-based asset management; pipeline coatings, linings, and corrosion; assessment and inspection techniques; failure evaluation and emergency repairs; rehabilitation techniques; and international case studies."--