Academic literature on the topic 'Analysis pipeline'

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Journal articles on the topic "Analysis pipeline"

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Wang, Li Li, Xiao Qing Zhang, and Liang Liang Xu. "Seismic Performance Analysis of Oil Pipeline with Crack Defects." Advanced Materials Research 721 (July 2013): 710–13. http://dx.doi.org/10.4028/www.scientific.net/amr.721.710.

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The pipelines distribute extensively in China, but pipelines cracks caused pipeline damaged frequently. Once the pipeline’s cracks are considered in the seismic condition, the performance of pipelines will face many problems. The finite element method was used to analyze the seismic responses of pipeline’s cracks. According to fracture mechanics [1], the time-history responses of displacement, acceleration and stress of pipeline with crack defects and seamless pipeline were obtained, and the results were also compared and analyzed. The results indicate that cracks will cause the stress concentration of the pipeline, the pipeline cracks should be considered in seismic responses of pipelines to make the pipelines in safety and economy, and more attention should be paid to the design and study of pipelines with crack defects.
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Lu, Qun, Hui Xia Li, and Jian Bo Yuan. "3D FEM Analysis of Effects on Adjacent Pipelines by Pit Excavation." Applied Mechanics and Materials 90-93 (September 2011): 165–71. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.165.

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Pit excavation influences the stress and deformation of adjacent underground pipelines seriously. On the base of former study, the project was analyzed with the aid of general finite element soft ABAQUS, in which the interactive action of soil with pipeline and pit protection structure were taken into account. Wall-soil friction and pipeline-soil friction contact were used. The influence on adjacent pipelines of pit excavation was analyzed. The laws of deformation and the stress were gained. The results showed that the horizontal displacement was much bigger than the vertical displacement, and the pipeline would lift at the end close to the symmetric plane and fall at the other end. The displacement would decrease with the increment of the distance between pit and pipelines. The laws of influence of the pipeline’s embedment and wall-soil friction were similar, while the latter’s influence was greater than the former’s. The influence on horizontal displacement aroused by wall-soil friction was greater. The principle tensile stress mainly aroused by the pipeline’s horizontal displacement would cause tension fracture. The sections of the pipeline around the area of the end and the middle of the pit were dangerous, which should be particularly protected.
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Shao, Bing, Xiang Zhen Yan, and Xiu Juan Yang. "Reliability Analysis of Locally Thinned Submarine Pipelines in ChengDao Oil Field." Applied Mechanics and Materials 94-96 (September 2011): 1527–30. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.1527.

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Local thinning of submarine pipeline always exists due to the complexity and dynamic of marine environment loads. However, the location and extent of thinning areas are random. Mechanical research on the randomness of local thinning of submarine pipelines is significant for pipeline’s stress analysis and failure evaluation. In this paper, finite element model of locally thinned submarine pipeline is established and based on the Monte-Carlo method, the effect of input random variables on the submarine pipeline’s reliability is analyzed. Probability distribution ranges of equivalent stresses are got and further, relationship equation between confidence level and stress limit has been obtained. The result more accurately reveals the relationships of locally thinned pipeline and its elastic modulus with equivalent stress, which can provide foundation for safety analysis of locally thinned submarine pipeline with internal pressure.
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Zhang, Peng, Wei Liu, Siming Liu, Tian Xu, Yimiao Li, and Yunfei Huang. "Safety Analysis and Condition Assessment of Corroded Energy Pipelines under Landslide Disasters." Applied Sciences 13, no. 23 (November 30, 2023): 12880. http://dx.doi.org/10.3390/app132312880.

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Corrosion poses a significant risk to the safety of energy pipelines, while landslide disasters emerge as the primary threat responsible for triggering pipeline failures across mountainous areas. To date, there is limited research focused on the safety of energy pipelines considering the synergistic effect of corrosion and landslides. The present study proposes a finite element (FE)-based model to assess the condition of corroded pipelines under landslides. The effects of corrosion dimensions (length and depth) and location are determined. A novel equation is finally developed to predict the maximum stress and determine the most disadvantageous position for corroded pipelines under various landslide displacements. The results demonstrate that (1) as the landslide progresses, the pipeline’s stress significantly increases; (2) corrosion depth has a more significant impact on the pipeline condition than the corrosion length, and it is positively correlated with the pipe’s stress; (3) the maximum stress exhibits a nonlinear relationship with the landslide-facing position and the corrosion circumferential location; and (4) when the axial position of the corrosion is more than 6.5 m away from the center of the landslide, the location of maximum stress shifts from the corrosion region to the central section of the pipeline within the landslide. This work contributes to helping pipeline owners to understand the applicability of energy pipelines subjected to the combined effects of corrosion and landslides and provides support for future risk assessment efforts in pipeline integrity management.
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Ren, Zhi Ping, Chang Hua Liu, and Feng Feng Bie. "Dynamic Analysis of Suspended River Crossing Pipeline." Applied Mechanics and Materials 638-640 (September 2014): 51–57. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.51.

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When the long-distance oil pipeline under rivers (referred to as river-crossing pipelines) are damaged by the third-party, they are prone to nudity or left vacant, and the oil pipelines under the action of water flow will cause pipeline failure; and the distance of suspended pipeline is longer than the allowed length will cause the pipeline resonance. In order to avoid pipelines fatigue or broken, suspended pipelines are considered as part of the arc shape, and non-suspended pipelines are considered as the linear shape of the mechanical model with the two ends of the fixed pier synchronous. The study will consider the impact of water flow, buoyancy, the gravity of pipelines and its annexes, bending deformation and bending moment, do the tense calculation for suspended pipelines with external load and the vibration analysis for suspended pipelines under different water flow speeds. The results showed that: the design of river-crossing suspended pipelines not only needs to consider the impact of water flow, buoyancy, the gravity of pipelines and its annexes, bending deformation and bending moment, but also to consider the floating vortex-induced vibration of the suspended pipeline, which should cause pipeline designers, constructors and maintainers’ attention.
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Liu, Jieying, Lingxiao Li, Tianjiao Hou, Xinguo Wu, and Qiao Zhou. "Study on Security Angle of Gas Pipeline Elbow Based on Stress Analysis Method." Open Civil Engineering Journal 10, no. 1 (March 31, 2016): 133–40. http://dx.doi.org/10.2174/1874149501610010133.

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The gas pipelines usually undergo complicated and changeable regional environment. As the level of the potential difference or pipeline’s route changes in the space and therefore elastic bending cannot meet the needs when pipe changes its direction, we generally use pipe bend to connect two pipelines with different spatial extend direction during the pipe laying period, and it can reduce the temperature stress. Unreasonable design of elbow will lead to pipeline damage. We established mountain area pipeline model, and conducted analysis on pipeline stress under different elbow angles. Research shows that different angles of the bends suffer different operation stress, and we have come to the conclusion that the angle of pipe bends should not be within the range of 15 degrees to 35 degrees.
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Cong, Shen, Ke Tong, Dong Feng Li, Zhi Xin Chen, and Ke Cai. "Leakage Failure Analysis of the ERW Steel Pipeline." Materials Science Forum 993 (May 2020): 1224–29. http://dx.doi.org/10.4028/www.scientific.net/msf.993.1224.

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This paper provides a thorough investigation on the leakage reason of the ERW steel pipeline in an oil field. Through appearance inspection, physicochemical inspection, metallographic inspection and scanning electron microscope (SEM), it was found that the main reason of corrosions was caused by residual liquid at the bottom of the pipeline and O2 and CO2 in the air pressure test. The corrosion medium was large volume of O2 and CO2 forming continuously saturated corrosive aqueous solution in small volume of residual liquid, and the corrosion type was the under-deposit corrosion. It is recommended to conduct hot air purging on the pipelined before pressure test for building pipelines in the future, and if the pipeline is not put into use in time, it is recommended to use nitrogen to maintain pressure.
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Grafberger, Stefan, Paul Groth, and Sebastian Schelter. "Automating and Optimizing Data-Centric What-If Analyses on Native Machine Learning Pipelines." Proceedings of the ACM on Management of Data 1, no. 2 (June 13, 2023): 1–26. http://dx.doi.org/10.1145/3589273.

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Software systems that learn from data with machine learning (ML) are used in critical decision-making processes. Unfortunately, real-world experience shows that the pipelines for data preparation, feature encoding and model training in ML systems are often brittle with respect to their input data. As a consequence, data scientists have to run different kinds of data centric what-if analyses to evaluate the robustness and reliability of such pipelines, e.g., with respect to data errors or preprocessing techniques. These what-if analyses follow a common pattern: they take an existing ML pipeline, create a pipeline variant by introducing a small change, and execute this pipeline variant to see how the change impacts the pipeline's output score. The application of existing analysis techniques to ML pipelines is technically challenging as they are hard to integrate into existing pipeline code and their execution introduces large overheads due to repeated work. We propose mlwhatif to address these integration and efficiency challenges for data-centric what-if analyses on ML pipelines. mlwhatif enables data scientists to declaratively specify what-if analyses for an ML pipeline, and to automatically generate, optimize and execute the required pipeline variants. Our approach employs pipeline patches to specify changes to the data, operators and models of a pipeline. Based on these patches, we define a multi-query optimizer for efficiently executing the resulting pipeline variants jointly, with four subsumption-based optimization rules. Subsequently, we detail how to implement the pipeline variant generation and optimizer of mlwhatif. For that, we instrument native ML pipelines written in Python to extract dataflow plans with re-executable operators. We experimentally evaluate mlwhatif, and find that its speedup scales linearly with the number of pipeline variants in applicable cases, and is invariant to the input data size. In end-to-end experiments with four analyses on more than 60 pipelines, we show speedups of up to 13x compared to sequential execution, and find that the speedup is invariant to the model and featurization in the pipeline. Furthermore, we confirm the low instrumentation overhead of mlwhatif.
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Ismail, Mohd Fadly Hisham, Zazilah May, Vijanth Sagayan Asirvadam, and Nazrul Anuar Nayan. "Machine-Learning-Based Classification for Pipeline Corrosion with Monte Carlo Probabilistic Analysis." Energies 16, no. 8 (April 21, 2023): 3589. http://dx.doi.org/10.3390/en16083589.

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Pipeline corrosion is one of the leading causes of failures in the transmission of gas and hazardous liquids in the oil and gas industry. In-line inspection is a non-destructive inspection for detecting corrosion defects in pipelines. Defects are measured in terms of their width, length and depth. Consecutive in-line inspection data are used to determine the pipeline’s corrosion growth rate and its remnant life, which set the operational and maintenance activities of the pipeline. The traditional approach of manually processing in-line inspection data has various weaknesses, including being time consuming due to huge data volume and complexity, prone to error, subject to biased judgement by experts and challenging for matching of in-line inspection datasets. This paper aimed to contribute to the adoption of machine learning approaches in classifying pipeline defects as per Pipeline Operator Forum requirements and matching in-line inspection data for determining the corrosion growth rate and remnant life of pipelines. Machine learning techniques, namely, decision tree, random forest, support vector machines and logistic regression, were applied in the classification of pipeline defects using Phyton programming. The performance of each technique in terms of the accuracy of results was compared. The results showed that the decision tree classifier model was the most accurate (99.9%) compared with the other classifiers.
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Ye, Jihong, Yiyang Fang, and Xinxiang Yang. "Vulnerability Analysis of Harbor Oil Pipeline Affected by Typhoon." Energies 15, no. 18 (September 15, 2022): 6752. http://dx.doi.org/10.3390/en15186752.

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The integrity of oil pipelines has received considerable attention. Pipeline leakage accidents cause environmental pollution and casualties. Analysis of accident data in recent years shows that the harbor oil pipeline is prone to natural disasters such as typhoons. The vulnerability analysis of the pipeline was conducted from three perspectives: typhoon grades, windward angles, and operating conditions. The analytic hierarchy is used to build the vulnerability evaluation index system. The vulnerability evaluation score of the pipeline can be calculated by the semi-quantitative method. The results show that the probability of pipeline vulnerability failure increases with the increase of typhoon level, while the change of wind angle has no obvious effect on the pipeline. The full load of the pipeline has a higher evaluation score than that of the empty load, which means the full load is safer. The vulnerability analysis of oil pipelines can effectively improve the safety of pipeline transportation under the influence of typhoons.
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Dissertations / Theses on the topic "Analysis pipeline"

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Vervik, Stian. "Pipeline Accidental Load Analysis." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15453.

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Ship interaction in terms of anchor hooking on a subsea pipeline has been investigated in this thesis. An attempt has been made to predict the most probable anchor interaction loads on the Kvitebjørn gas pipeline in the North Sea if anchor hooking were to occur, and evaluate the structural consequences of an anchor hooking incident. By utilization of AIS ship data provided by the Norwegian Coastal Administration it has been found that 7160 cargo, tanker and tug ships passed the Kvitebjørn gas pipeline from March 2010 to March 2011. These ships have been evaluated with respect to anchor equipment, ship mass and velocity by use of a developed computer script in the computer code MATLAB. It has been found from geometrical evaluations of anchor hooking that anchors above 3780 kg will have large enough dimensions to hook pipeline. Anchor tow depth analyses predict that stabilization depth of a towed anchor arrangement is about 1/3 of the chain length for velocities around 15 knots. The geometrical evaluations and the tow depth analyses have been included in the computer script, and ships not able to hook pipeline have been separated out. Results predict that 237 of the total 7160 evaluated cargo ships, tankers and tugboats possess the necessary hooking parameters. These ships have large enough anchor for the pipeline to get stuck, and ship velocity low enough that the anchor will touch seabed if dropped. Ship traffic has been found to be largest over pipeline sections with a water depth of around 300 meters. Due to this large water depth only ships with large anchors sizes around 10 tons and above will be able to touch down on the seabed. The most frequently observed anchor equipment and velocities of the ships found to be able to hook the pipeline have been determined. In order to predict the structural consequences of anchor hooking a model in the computer code SIMLA has been developed. The most frequently observed anchor equipment and ship velocities from the AIS studies performed have been included in the SIMLA analyses. Results from the analysis predict that very large strain levels will be observed as a result of anchor hooking. Strains have been found to exceed design strains for interaction by the most frequently observed anchor systems and the pipeline would need extensive reparations due to utilization of the plastic capacity of the cross section beyond capacity corresponding to Specified Minimum Tensile Strength (SMTS).
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Chamorro, Alexander. "The analysis of pipeline leak tests using DEGADIS model." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=913.

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Thesis (M.S.)--West Virginia University, 1999.
Title from document title page. Document formatted into pages; contains ix, 123 p. : ill. (some col.), maps. Includes abstract. Includes bibliographical references (p. 64-65).
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Mozere, M. "High-throughput sequencing analysis pipeline." Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1528797/.

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High-throughput sequencing methods were developed to increase the productivity of processing data from genomic DNA. Sequencing platforms are generating massive amounts of genetic variation data which makes it difficult to pinpoint a small subset of functionally important variants. The focus has now shifted from generating sequences to searching for the critical differences that separate normal variants from disease ones. Our High-throughput Sequencing Analysis Pipeline (HSAP) is a multistep analysis software designed to annotate and filter variants in a top-down fashion from Variant Calling Format (VCF) files in order to find disease causing variants in the patients. It is designed in Linux medium and is composed of a collection of interacting task-specific modules written in different programming languages (such as Python, C++) and shell scripts. Each module is designed to perform a specific task, such as: annotate variants with their functional characterisation, zygosity status, allele frequencies within population; filter variants depending on the inherited disease model, read depth, call quality, physical location and other criteria. The output is added to the universal VCF format file, which contains annotated and filtered genomic variants. The pipeline was verified by identifying/confirming a specific disease-causing mutation for a single-gene disorder. HSAP is designed as an open-source locally self-contained bootable software that uses only information from publicly available databases. It has a user-friendly offline web-interface that allows to select different modules and chain them together to create unique filtering arrangements in order to adapt the pipeline as needed.
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Donaldson, Val. "Asynchronous pipeline analysis and scheduling /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9804026.

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Salahifar, Raydin. "Analysis of Pipeline Systems Under Harmonic Forces." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19820.

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Starting with tensor calculus and the variational form of the Hamiltonian functional, a generalized theory is formulated for doubly curved thin shells. The formulation avoids geometric approximations commonly adopted in other formulations. The theory is then specialized for cylindrical and toroidal shells as special cases, both of interest in the modeling of straight and elbow segments of pipeline systems. Since the treatment avoids geometric approximations, the cylindrical shell theory is believed to be more accurate than others reported in the literature. By adopting a set of consistent geometric approximations, the present theory is shown to revert to the well known Flugge shell theory. Another set of consistent geometric approximations is shown to lead to the Donnell-Mushtari-Vlasov (DMV) theory. A general closed form solution of the theory is developed for cylinders under general harmonic loads. The solution is then used to formulate a family of exact shape functions which are subsequently used to formulate a super-convergent finite element. The formulation efficiently and accurately captures ovalization, warping, radial expansion, and other shell behavioural modes under general static or harmonic forces either in-phase or out-of-phase. Comparisons with shell solutions available in Abaqus demonstrate the validity of the formulation and the accuracy of its predictions. The generalized thin shell theory is then specialized for toroidal shells. Consistent sets of approximations lead to three simplified theories for toroidal shells. The first set of approximations has lead to a theory comparable to that of Sanders while the second set of approximation has lead to a theory nearly identical to the DMV theory for toroidal shells. A closed form solution is then obtained for the governing equation. Exact shape functions are then developed and subsequently used to formulate a finite element. Comparisons with Abaqus solutions show the validity of the formulation for short elbow segments under a variety of loading conditions. Because of their efficiency, the finite elements developed are particularly suited for the analysis of long pipeline systems.
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Hwisu, Shin. "Stochastic Analysis For Water Pipeline System Management." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/202696.

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Sheblee, Jafer Sadeg. "A hierarchical pipeline processor for image analysis." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239614.

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Wang, Yunxiao. "One-way buckling analysis of pipeline liners." Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404888.

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Jittamai, Phongchai. "Analysis of oil-pipeline distribution of multiple products subject to delivery time-windows." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3112.

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This dissertation defines the operational problems of, and develops solution methodologies for, a distribution of multiple products into oil pipeline subject to delivery time-windows constraints. A multiple-product oil pipeline is a pipeline system composing of pipes, pumps, valves and storage facilities used to transport different types of liquids. Typically, products delivered by pipelines are petroleum of different grades moving either from production facilities to refineries or from refineries to distributors. Time-windows, which are generally used in logistics and scheduling areas, are incorporated in this study. The distribution of multiple products into oil pipeline subject to delivery time-windows is modeled as multicommodity network flow structure and mathematically formulated. The main focus of this dissertation is the investigation of operating issues and problem complexity of single-source pipeline problems and also providing solution methodology to compute input schedule that yields minimum total time violation from due delivery time-windows. The problem is proved to be NP-complete. The heuristic approach, a reversed-flow algorithm, is developed based on pipeline flow reversibility to compute input schedule for the pipeline problem. This algorithm is implemented in no longer than O(T*E) time. This dissertation also extends the study to examine some operating attributes and problem complexity of multiple-source pipelines. The multiple-source pipeline problem is also NP-complete. A heuristic algorithm modified from the one used in single-source pipeline problems is introduced. This algorithm can also be implemented in no longer than O(T*E) time. Computational results are presented for both methodologies on randomly generated problem sets. The computational experience indicates that reversed-flow algorithms provide good solutions in comparison with the optimal solutions. Only 25% of the problems tested were more than 30% greater than optimal values and approximately 40% of the tested problems were solved optimally by the algorithms.
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Tinston, S. F. "Fracture toughness of mechanised pipeline girth welds." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381698.

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Books on the topic "Analysis pipeline"

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B, Day Nicholas, and American Society of Civil Engineers. Committee on Pipeline Installation and Location., eds. Pipeline route selection for rural and cross-country pipelines. Reston, Va: ASCE, 1998.

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Engineering, ENSR Consulting and, ARCO Western Gas Pipeline Company., and Williams Brothers Process Services, eds. Environmental report for the Ferndale Pipeline. [Fort Collins, Colo: ENSR Consulting and Engineering, 1988.

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Griffin, Brian J. Risk analysis basis for pipeline life cycle safety. Calgary: National Energy Board, 1994.

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Murphy, Jason. Energy analysis of the pneumatic capsule pipeline system. Sudbury, Ont: Laurentian University, School of Engineering, 2000.

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Board, Canada National Energy. Focus on safety and environment: A comparative analysis of pipeline performance, 2000-2003. Calgary: National Energy Board, 2005.

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Division, Montana Energy, ed. Express crude oil pipeline final environmental impact statement. Worland?, WY]: The Bureau, 1996.

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Division, Montana Energy. Express crude oil pipeline draft environmental impact statement. [Worland?, WY: The Bureau, 1995.

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Division, Montana Energy, ed. Express crude oil pipeline draft environmental impact statement. Worland?, WY]: [The Bureau], 1995.

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Division, Montana Energy. Express crude oil pipeline final environmental impact statement. Worland?, WY]: The Bureau, 1996.

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Lands, Montana Department of State. Front Range Pipeline, Cenex, Inc: State of Montana environmental assessment. Helena, MT: The Dept., 1995.

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Book chapters on the topic "Analysis pipeline"

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Jönsson, Lennart, and Magnus Larson. "Leak Detection through Hydraulic Transient Analysis." In Pipeline Systems, 273–86. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2677-1_22.

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Malmström, Lars, Andreas Quandt, and Ela Pustulka-Hunt. "Proteome Analysis Pipeline." In Encyclopedia of Systems Biology, 1792–94. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4419-9863-7_1002.

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Kono, Yukio, Takahiro Sugano, and Yukihito Sugai. "Analysis of Penstock Fracture by Water Hammer." In Pipeline Systems, 165–70. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2677-1_14.

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Xiao, Jun, and Maofei Geng. "Analysis and Treatment of Gas Pulsation in the Pipeline of a Hydrogen Diaphragm Compressor." In Proceedings of the 10th Hydrogen Technology Convention, Volume 1, 1–14. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8631-6_1.

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AbstractBased on the plane wave theory and the transfer matrix method, the modeling, calculation and analysis of gas pulsation in a complex pipeline system of a hydrogen diaphragm compressor were carried out. The calculations show that the gas pulsations of the intake and exhaust pipelines of the cylinder gradually attenuate along the pipeline upstream and downstream, and the gas pulsation of the exhaust pipeline of the second stage cylinder is larger. The gas pulsations of the exhaust pipelines of the first and second stage cylinders are significantly higher than the limit values of API 618. From the perspective of pulsation control, an attempt was made to add orifice plates at appropriate positions of the pipeline to reduce the pulsation amplitude. The trial calculations show that the added orifice plate can effectively reduce the maximum gas pulsation of the pipeline, and can provide a useful reference for the treatment of gas pulsation.
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Langenbach, Marc, Stephan Thesing, and Reinhold Heckmann. "Pipeline Modeling for Timing Analysis." In Static Analysis, 294–309. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45789-5_22.

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Larichev, Oleg I., and David L. Olson. "Pipeline Location Decisions." In Multiple Criteria Analysis in Strategic Siting Problems, 141–72. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4757-3245-0_7.

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Pedrioli, Patrick G. A. "Trans-Proteomic Pipeline: A Pipeline for Proteomic Analysis." In Methods in Molecular Biology, 213–38. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60761-444-9_15.

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Freire, José Luiz F. "Stress Analysis with Applications to Pipelines." In Handbook of Pipeline Engineering, 1–32. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-05735-9_7-2.

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Freire, José Luiz F. "Stress Analysis with Applications to Pipelines." In Handbook of Pipeline Engineering, 1–32. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-05735-9_7-1.

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Thomas, Jean-Baptiste, Pierre-Jean Lapray, and Pierre Gouton. "HDR Imaging Pipeline for Spectral Filter Array Cameras." In Image Analysis, 401–12. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59129-2_34.

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Conference papers on the topic "Analysis pipeline"

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Lapin, D. V., V. V. Klychnikov, and M. E. Khubbatulin. "Predictive pipeline analysis: Systematic analysis of pipeline monitoring." In XLIV ACADEMIC SPACE CONFERENCE: dedicated to the memory of academician S.P. Korolev and other outstanding Russian scientists – Pioneers of space exploration. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0035940.

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Jiang, Jinxu, Hong Zhang, Jianping Liu, Pengchao Chen, and Xiaoben Liu. "Stress Analysis of Buried Pipelines Under Thaw Settlement of Permafrost Zone Based on Moisture-Heat-Stress Coupled Analysis." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9546.

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Abstract Permafrost thawing caused by the hot crude pipeline is a major threat to the safe operation of buried pipelines in permafrost zone. In this paper, the process of thawing and consolidation of frozen soil is considered, and a three-dimensional (3D) finite element model of buried pipelines in permafrost zone is established using ABAQUS. The calculation of thaw settlement displacement of frozen soil based on moisture-heat-stress coupled was carried out, and the deformation and stress of buried pipelines were analyzed. The effects of ground temperature, oil temperature, thermal conductivity of insulation material and soil distribution along the pipeline on the vertical displacement and longitudinal stress of buried pipelines in frozen soil were studied. Research results show that in thaw-unstable soil, the vertical displacement and stress of the pipeline increase significantly with the increase of the average ground temperature, and change on ground temperature amplitude has a little effect on the vertical displacement and longitudinal stress of the pipeline in thaw settlement zone. It is 1/3 of the vertical displacement of the pipeline without a heat insulating layer. When the thermal conductivity of the insulation material is less than 0.4 W/m °C, the vertical displacement of the pipeline in the thawing zone can be further reduced by reducing the thermal conductivity of the insulation material. When clay and sand appear alternately along the pipeline, the vertical displacement and longitudinal stress of the pipeline can be reduced by reducing the length of clay section. This study has certain reference value for optimizing the design parameters of buried pipelines in permafrost zone and reducing the impact of differential thaw settlement of frozen soils on the safe operation of pipelines.
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Han, Bing, Jianbin Hao, Hongyuan Jing, Jianping Liu, and Zhangzhong Wu. "Analysis of Stresses on Buried Pipeline Subjected to Landslide Based on Numerical Simulation and Regression Analysis." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31043.

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The integrity of oil and gas pipelines is seriously impacted by landslides in tough terrain in western China. The quantitative assessment technology is an effective method for pipelines risk management under threat of geohazard. In order to establish the vulnerability assessment indexes system of pipelines subjected to landslides, the numerical simulation based on the finite element method is adopted to study the pipeline axial stresses. There are five kinds of calculation schemes considered by changing the geometrical sizes and inclination angles of landslide, the pipeline length passing through landslide and buried depth of pipeline, and the axial stresses and bending moments of pipeline can be obtained by means of numerical simulation for different calculation conditions under the every kind of scheme. In the study, regression analysis method is used to derive the axial stress equation of pipeline from calculation results of numerical simulation by taking into consideration the above five indexes. The feasibility and practicality of this equation are verified by the given example of a pipeline passing through a certain landslide in southwest China. The comparison analysis between the monitoring data and calculation results shows that the calculation values agree well with the monitoring data of pipeline axial stresses.
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Arifin, Rosman B., Wan M. Shafrizal B. Wan M. Yusof, Pengfei Zhao, and Yong Bai. "Seismic Analysis for the Subsea Pipeline System." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20671.

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Seismic activity in Malaysia is very low as earthquakes are infrequent in this region. The strongest measured earthquake magnitude record in this region since 1978 was 4, which had a very low impact on the integrity of pipelines system in Malaysia. Although this is the case, there exists seismic events in the neighbouring regions and such events may impact the operability, stability and safety of Malaysia submarine pipeline systems. Based on this, a pipeline integrity analysis has been carried out to check the pipeline integrity under the seismic influence. The purpose of the analysis includes: • To calculate earthquake response for three PCSB PMO main export pipelines — for each pipeline both buried and unburied conditions will be taken into account. • To understand the characteristics of buried and unburied pipelines under strong earthquakes affecting Malaysia waters. • To determine the peak ground acceleration (PGA) the pipelines can withstand. • To determine the largest permanent ground deformation (PGD) the pipeline can withstand. • To estimate the impact of the metal loss on the pipeline integrity. • To assist PETRONAS to prepare for such severe earthquakes. Two typical methods have been employed to make the analysis: • Time history method is used to calculate both buried and unburied pipeline response. Two typical seismic wave records have been used in the analysis, which will give a better estimation of the pipeline response under the seismic wave impact. • Soil-pipe element method is used to simulate the behavior between the soil and buried pipeline system. Based on choosing the suitable experimental equations, this method can simulate the soil behaviour accurately. This paper discusses results of the seismic analysis. Based on the analysis results, the pipeline system will be safe under the seismic wave impact. More attention should be given to fault hazard, as the pipeline system will been failed under the fault impact. Finally, the metal loss will be taken into consideration, for the pipeline stress will be much higher due to great metal loss. All those analysis results will be further utilised to estimate the pipeline response in the case of the earthquake.
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Putra, I. W. Eka, M. N. A. M. Adnan, and T. Chin Chien. "Mechanical Interference Fit Connection (MIFC) for Offshore Pipeline Application: A Case Study of Dynamic On-Bottom Stability Analysis." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/217079-ms.

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Abstract The offshore oil and gas industry requires pipelines to transport hydrocarbons from wells to processing facilities. Application of Mechanical Interference Fit Connection (MIFC) has been considered one of the optimization solutions in jointing of line pipes for pipeline installation, especially for offshore application. This method allows faster or less duration in pipe joining, which subsequently contributed to significant cost reduction in offshore pipeline installation. These pipelines are often subjected to harsh environmental conditions, including strong currents, waves, and seabed scouring. To ensure stability of pipeline on seabed, normally concrete coating is applied to provide sufficient weight for the pipeline. However, with concrete coated pipe, the faster joining rate by MIFC may be offset by longer duration to perform field joint coating due to longer field joint length required for MIFC to cater for clamping equipment to joint both-end of the pipes. This paper presents a case study of the dynamic on-bottom stability analysis of an offshore MIFC pipeline. The pipeline is a 12-inch diameter pipeline with a total length of 60 km. The pipeline is located in an offshore field with a water depth of ninety meters and 150 km away from shore. The dynamic on-bottom stability analysis is carried out to investigate the pipeline's response to environmental loads, including waves and currents. The dynamic on-bottom stability analysis is performed using a finite element analysis software package. The analysis considers the pipeline's structural behavior, seabed soil properties, and environmental loads. The results show that the MIFC joined pipeline is stable on seabed within the design envelope of the environmental loads without requirement of concrete weight coating. The maximum displacement and stress in the pipeline are well within the allowable limits, indicating that the pipeline's integrity is maintained. In addition, the study evaluates the effects of different parameters, such as seabed soil properties, current velocities, and wave heights, on the pipeline's dynamic response. In conclusion, this case study demonstrates that MIFC supported by dynamic on bottom stability analysis can be an effective solution for offshore pipeline jointing, providing stability and integrity on the seabed under the environmental design limit. The dynamic on-bottom stability analysis is an essential tool to investigate the pipeline's response to environmental loads and optimize the design and operation. Based on the findings of this study, we recommend that offshore pipeline engineers and designers may consider MIFC as a viable option for pipeline jointing. In overall, this case study contributes to the industry's knowledge and understanding of MIFC jointing for offshore pipelines, improving safety and efficiency in the offshore oil and gas industry.
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Shuai, Jian, and Wenping Bu. "Full Scale Experimental Analysis of Stress State in Welding Repairs of Drilled Pipelines." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10225.

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Recently, drilling holes in petroleum transmission pipelines is becoming of major concern for pipeline companies. These drilled pipelines must be repaired through welding ways. There are two ways to repair these pipelines in fields. One is welding a short tube with a cap. Another is welding a patch. In this paper, full scale experiments were conducted to assess the stresses state and the loading capability of the repaired pipelines. The φ711×10 pipelines repaired by welding a tube cap or a patch were pressured to burst failure. Strain gages have been used extensively to monitor stress state in full scale pipeline tests. It was showed that welding a tube cap or a patch resulted in the non-uniform stresses distribution and the stress concentration in the extent. These two kinds of the repaired pipeline has almost the similar yield limit pressure which are approximately equal to 85% of that of pipelines that were not damaged. Patching repair has more restriction to the deformation around a hole than tube capping repair, therefore it may have a little better loading capacity than tube capping repair. The burst pressures in these tests are close to that of pipeline which has not been damaged, whereas the location of burst failure is far from where a short tube or a patch is welded. The burst is a ductile fracture by maximum shear stress.
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Kariyawasam, Shahani, Mark Stephens, and Wytze Sloterdijk. "Probabilistic Fracture Analysis of Pipelines." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27272.

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Many pipelines were built before the industry developed material specifications for fracture control. For these older pipelines an essential first step in fracture control is to estimate the existing likelihood of fracture initiation and propagation. It is also desirable for operators to know the size of defects the pipeline can tolerate without causing pipeline fracture. This paper describes a methodology developed for the probabilistic characterization of the fracture initiation and propagation susceptibility of older pipeline segments, made from line pipe exhibiting (by today’s standards) low to moderate strength and low notch toughness. It is applicable to ductile, brittle and mixed-mode fracture behaviour. A probabilistic analysis approach is ideally suited to the problem since it offers a way to quantitatively address both the inherent variability in the mechanical properties of line pipe and the uncertainties associated with the various models currently available to determine the conditions necessary to cause crack initiation or to force crack arrest. The method described addresses both of these forms of uncertainty, and also reflects the added uncertainty inherent in trying to estimate material properties for existing lines from small samples of data.
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Zeitoun, Hammam O., Knut To̸rnes, John Li, Simon Wong, Ralph Brevet, and John Willcocks. "Advanced Dynamic Stability Analysis." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79778.

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Several design approaches can be used to analyse the stability of subsea pipelines [1]. These design approaches vary in complexity and range between simple force-balance calculations to more comprehensive dynamic finite element simulations. The latter may be used to more accurately simulate the dynamic response of subsea pipelines exposed to waves and steady current kinematics, and can be applied to optimise pipeline stabilisation requirements. This paper describes the use of state-of-the-art transient dynamic finite elements analysis techniques to analyse pipeline dynamic response. The described techniques cover the various aspects of dynamic stability analysis, including: • Generation of hydrodynamic forces on subsea pipelines resulting from surface waves or internal waves. • Modelling of pipe-soil interaction. • Modelling of pipeline structural response. The paper discusses the advantages of using dynamic stability analysis for assessing the pipeline response, presents advanced analysis and modelling capabilities which have been applied and compares this to previously published knowledge. Further potential FE applications are also described which extends the applicability of the described model to analyse the pipeline response to a combined buckling and stability problem or to assess the dynamic response of a pipeline on a rough seabed.
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Deng, Kam, David J. Queen, Andreas Felber, and Don W. Bergman. "Stress Analysis of Surface Pipelines Located in Regions of Differential Ground Movements." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10499.

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Buried pipelines running through areas of large differential ground movements, such as active landslides, can be subject to severe overstress conditions. Moving these pipelines to the surface (i.e. surfacing) and resting them on timber skids reduces the impact of ground movements because slippage can occur between the pipe and the skids. This approach has been used successfully on several pipelines. Surfacing was recently considered for a 4.5 km section of a buried pipeline situated in northern British Columbia. The surfaced pipeline is supported by timber skids every 2 m and winds through mountainous terrain containing twenty different movement zones in which differential displacements range from 0 m to 3 m. Along the route, the direction of the ground movement varied with the terrain. The alignment also crossed a creek with a 45 m clear span. This paper describes the methodology used in completing the stress analysis for the surfaced pipeline. To capture various load effects, an existing construction stage analysis program was modified to facilitate the modelling of the surface pipeline under the various load paths. The evolution of the displacement and stress state of the pipeline was determined and tracked for several different load paths. For each state, a single plot that summarized the ground movement, slip distances, skid reactions and pipe stresses was produced. The results from this analysis are used to discuss the response of surface pipelines under thermal and ground movement loads.
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Natarajan, Karthik, Heather Hanson, Stephen W. Keckler, Charles R. Moore, and Doug Burger. "Microprocessor pipeline energy analysis." In the 2003 international symposium. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/871506.871577.

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Reports on the topic "Analysis pipeline"

1

Bever. L52075 Analysis of Pipeline Data Standards. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), February 2003. http://dx.doi.org/10.55274/r0010633.

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Three standards were evaluated to assess the the potential for a unified standard: ISPDM (Industry Standard Pipeline Data Management), ISAT (Integrated Spatial Analysis Techniques), and PODS (Pipeline Open Data Standard). The scope of the analysis included: establishing the basic information modeled in each standard, information modeling techniques employed in each standard, exclusive/overlapping information in each standard, and evaluation of a potential integrated standard. This analysis has been performed using information publicly available from each standard owner.
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2

Liu and Nixon. L52305 Probabilistic Analysis of Pipeline Uplift Resistance. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), June 2010. http://dx.doi.org/10.55274/r0000002.

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To investigate the feasibility of probabilistic analyses of the peak uplift resistance in frozen soils by varying parameters that are known to be important for the development of the uplift resistance under the upward movement of a pipe. A buried pipeline will be subjected to a variety of forces, both internal and external, including the interaction of the pipe with the surrounding soil. The soil-pipe interaction in permafrost regions have to account for the behavior of frozen and unfrozen soil, and transitions between the two as the pipeline traverses in a discontinuous permafrost zone. The variations in the properties and behavior of frozen soils are expected to be substantial in three dimensions of the Right-of-Way (ROW) and with time (seasonal fluctuations and changes with the history of pipeline operation). Given the uncertainties with frozen soil properties and the changes in behavior with time and location, a large variation in soil-pipe interaction characteristics can exist. The uplift resistance of a pipeline is one of these soil-pipe interactions that can be impacted by a variation in soil condition and state. A need was identified to outline the use of a probabilistic analysis of pipe uplift resistance in an attempt to capture the magnitude of these variations and uncertainties of frozen soil and the impact on the soil-pipe interaction. The probabilistic analysis allows the designer of a pipeline to consider a range of uplift resistance to a certain confidence level that would represent the likely values that a pipe may be subjected to. The work presented in this report is more focused on the methodology of the probabilistic approach, rather than the analysis itself for a specific design case, even though an example is provided for illustration purposes. A series of numerical simulations using Fast Lagrangian Analysis of Continua (FLAC) were completed varying one parameter with each run to develop a library of peak uplift resistances for a variety of different temperatures, soil properties and pipe parameters. The FLAC model was previously developed for PRC, a summary of this report is provided here to outline important parameters that were used to complete this analysis. The simulations were used to develop a correlation of peak uplift resistance as a function of soil tensile strain limit, modulus of deformation, and creep of frozen soils. Each of these parameters is dependent of the pipeline conditions such as temperature, displacement rate, and effective frozen cover depth. It is noted that the scope of the work was to develop a probabilistic method of estimating peak uplift resistance in frozen soils. Even though some sensitivity analysis were carried out, as outlined later in this report, to assess the impacts of the variable, detailed uncertainty analysis or risk assessment were not performed.
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Kolovitch, Haines, and Trench. L52317 Pipeline Facility Incident Data Review and Statistical Analysis. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), December 2008. http://dx.doi.org/10.55274/r0010675.

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There is a need to improve the industry understanding of leak sources, failure mechanisms and causes within pipeline facilities through statistical analysis, and to use the findings of this effort to develop a PRCI Facilities Integrity Management Program, if appropriate, by developing processes and/or procedures for reducing/preventing leaks that could affect safety, the environment, and operations. This document presents an analysis of reportable incidents and releases from facilities for hazardous liquid and gas transmission pipeline systems in the U.S. For liquid pipelines, facilities� includes facilities releases studied from the Pipeline Performance Tracking System (PPTS) database for the 8-year period from 1999-2006. Gas transmission facilities releases were studied from the Pipeline and Hazardous Materials Safety Administration (PHMSA) gas transmission database for the 5-year period from 2002-2006 and some additional data obtained from PRCI members that operate gas transmission pipelines. The detailed analysis and examinations presented are directed at providing pipeline operators with the appropriate information to understand the key elements for developing a management system that addresses each type of failure on each type of equipment.
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Riseborough, D. W., D. E. Patterson, and M. W. Smith. Computer Analysis of Norman Wells Pipeline Thermal Data. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/130434.

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Riseborough, D. W. Computer Analysis of Norman Wells Pipeline Thermal Data. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/130758.

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Gauthier, John Henry. Preliminary analysis of the International Data Centre pipeline. Office of Scientific and Technical Information (OSTI), July 2009. http://dx.doi.org/10.2172/972899.

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Chandra, Charu, Anthony Nastasi, Dennis R. Powell, and James K. Ostic. Enterprise simulation analysis of the nylon jacket pipeline. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/10119207.

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Lazor and Glover. L51490 Experimental Stress Analysis of Pipeline Girth Welds. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), August 1985. http://dx.doi.org/10.55274/r0011214.

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Also PR-164-170. Examines the effect of welding procedures on the contraction behavior of linepipe due to girth welding using a range of standard field conditions and the resulting residual stress distribution.
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Greenfeld, Joshua, Eugene Golub, Robert Dresnack, F. H. (Bud) Griffis, and Louis J. Pignataro. DTRS-56-94-C-0006 Pipeline Accident Effects for Hazardous Liquid Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), August 1996. http://dx.doi.org/10.55274/r0012146.

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Identified the factors that cause pipeline failures and the factors that affect accidents on hazardous liquid pipelines. Since the normalizing of the data was not possible, the authors of this report used indirect and inferential approaches in the analysis. The databases used for this analysis are LIQUID (accident data for 1968-1985) and L1QLCK (accident data for 1985-present). The main finding of this report is that better and more complete data on hazardous liquid accidents should be collected. Other conclusions are that prevention programs should be more effective, and pipe components such as valves, O-rings, gaskets, and nipples are a significant source of potentially reducible accidents.
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Michalopoulos, C. D. PR-175-420-R01 Submarine Pipeline Analysis - Theoretical Manual. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), December 1985. http://dx.doi.org/10.55274/r0012171.

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Describes the computer program SPAN which computes the nonlinear transient response of a submarine pipeline, in contact with the ocean floor, to wave and current excitation. The dynamic response of a pipeline to impact loads, such as loads from trawl gear of fishing vessels, may also be computed. In addition, thermal expansion problems for submarine pipelines may be solved using SPAN. Beam finite element theory is used for spatial discretization of the partial differential equations governing the motion of a submarine pipeline. Large-deflection, small-strain theory is employed. The formulation involves a consistent basis and added mass matrix. Quadratic drag is computed using a nonconventional approach that involves the beam shape functions. Soil-resistance loads are computed using unique pipeline-soil interaction models which take into account coupling of axial and lateral soil forces. The nonlinear governing equations are solved numerically using the Newmark Method. This manual presents the discretized equations of motion, the methods used in determining hydrodynamic and soil-resistance forces, and the solution method.
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