ASME-ARPEL 2019 International Pipeline Geotechnical Conference最新文献

{"title":"Watercourse Crossing Program: 10 Years Performance","authors":"G. Ferris, S. Newton, M. Ho","doi":"10.1115/ipg2019-5314","DOIUrl":"https://doi.org/10.1115/ipg2019-5314","url":null,"abstract":"\u0000 Plains Midstream Canada (PMC) completes a watercourse crossing program as part of its overall integrity management program. The approximately 9,900 kilometers of operating and discontinued pipelines are evaluated within the watercourse crossing program. The pipelines are located throughout the Canadian Provinces of Alberta, Saskatchewan, Manitoba and Ontario. The terrain traversed ranges from relatively steep near the Rocky Mountains to extremely flat in northern Alberta and Southern Ontario. Since 2008, PMC’s systematic watercourse crossing program has evolved and now consists of approximately 5,000 individual watercourse crossings. The bankfull width of the watercourses ranges from less than 1 m for intermittent streams to more than 700 m at major rivers.\u0000 The watercourse crossing program is subjected to a continuous improvement process, with a focus on key learnings from pipeline failures, free spans and exposure. This paper describes the results from the program over the last 10 years and highlights program improvements. In addition, data from a failure and three free spans on the pipelines now owned by PMC, but where the exposure, free span or failure occurred prior to PMC purchasing the pipelines were added to expand the available data for the key learnings.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126045205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing and Managing Geologic Hazards in the Appalachian Region of the United States","authors":"Martin P. Derby, Bailey Theriault","doi":"10.1115/ipg2019-5328","DOIUrl":"https://doi.org/10.1115/ipg2019-5328","url":null,"abstract":"\u0000 Geohazards have the potential to adversely affect the operation or integrity of an existing pipeline, or the routing, design, and construction of a proposed pipeline. Identifying, characterizing, evaluating, and if necessary, mitigating and monitoring geologic hazards have become critical steps to successfully and safely building and operating pipelines in the Appalachian Basin region of the United States. The recent, rapid expansion of pipeline construction and operation in the region, along with natural geologic and geographic conditions which are conducive to landsliding and ground subsidence, have resulted in a recent increase in geohazard-related incidences both during and post-construction of pipelines. As such, there is an increasing need to recognize, understand, and closely manage geohazards in this region, prior to, during, and post-construction of pipelines. This paper will provide an overview of essential tools that have proven most useful in this region, to identify, characterize, and ultimately mitigate and monitor potential geohazards. This paper will also provide insight on how to evaluate specific project needs and best-fit approaches and solutions for the project at hand, to reduce the operator’s risk. A case study will be presented from the Appalachian Basin region, including how a phased approach was used to assess and manage geohazards. The phased approach includes (1) Phase I Assessments, which consist of a regional-scale desktop assessment to identify, initially characterize, and qualitatively classify (e.g., low, moderate, high hazards) geohazards; (2) Phase II Assessments, which consist of a non-intrusive ground reconnaissance completed at targeted sites; and (3) Phase III Assessments, which consist of subsurface investigations such as drilling, test pitting, or geophysical surveys to further characterize specific hazards.\u0000 The information obtained from the phased approach can be used for the design of mitigation and/or monitoring, if deemed necessary. Overall approaches to selecting and utilizing best-fit mitigation and monitoring options, both during and post-construction, fit for the regional conditions and to the individual project, will also be discussed.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117307437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Learnings About Geohazards in Cenit Pipeline Integrity Management","authors":"Carlos Motta Tierradentro, Jaime Hernán Aristizábal Ceballos, Julián Fernando Chaves Agudelo, C. E. T. Castro","doi":"10.1115/ipg2019-5344","DOIUrl":"https://doi.org/10.1115/ipg2019-5344","url":null,"abstract":"\u0000 About 20% of Cenit’s hydrocarbon transport infrastructure are located on mountainous terrain susceptible to effect of geohazards. There is an integrity management plan based on inspection, monitoring and mitigation activities; however, the occurrence of accidents triggered by geohazards has caused emergencies with effects on environment receiver and on operation of transport systems This paper presents, through management some of these accidents, good practices identified, learning in terms of prevention, preparation and response to emergencies and identification of priorities and gaps, in order to strengthen continuous improvement of the geohazards integrity management strategy.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116486330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilisation of Sheet Piles in the OCENSA’s Right of Way for Slope Stabilisation and Bioengineering Works","authors":"Hugo García","doi":"10.1115/ipg2019-5336","DOIUrl":"https://doi.org/10.1115/ipg2019-5336","url":null,"abstract":"\u0000 On the maintenance carried out by OCENSA for slope stabilization in areas with geotechnical issues, protection of lateral streams’ banks, maintenance of the Right of Way (RoW) embankment or access roads, sheet piles have been successfully used. The paper describes the different alternatives and their uses. Among them are: terraces to facilitate drainage and plant recovery, PVC sheet piles for protection of stream banks, sheet piles made of carbon steel pipe and steel deck in which the piles can be driven by percussion or previously excavated with drilling machine.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122582441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Natech Risk Management on Pipelines of Cenit","authors":"Jaime Hernán Aristizábal Ceballos, Julián Fernando Chaves Agudelo, Carlos Motta Tierradentro, M. I. Rodríguez","doi":"10.1115/ipg2019-5342","DOIUrl":"https://doi.org/10.1115/ipg2019-5342","url":null,"abstract":"\u0000 In recent years, the Colombian government has strengthened its legislation moving towards a disaster risk management system (Law 1523 in 2012) and has established guidelines on the role of public and private entities (decree 2157 in 2017) when defining the structure of disaster risk management plans. This paper presents the advancements on Natech risk management implementation in Cenit (major Colombian pipeline operator of hydrocarbons transport), to identify areas of potential disaster based on the application of its geohazards assessment model that considers prevention specific elements and consequence analysis.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131161081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Approach for the Geotechnical Zoning of the Rights of Way","authors":"Julián Fernando Chaves Agudelo, Jaime Hernán Aristizábal Ceballos, Carlos Motta Tierradentro, J. P. Franco","doi":"10.1115/ipg2019-5343","DOIUrl":"https://doi.org/10.1115/ipg2019-5343","url":null,"abstract":"\u0000 Usually, the definition of geotechnically homogeneous zones is established through the analysis of information on a regional (and even national) scale of those characteristics that define the topographic, geological, climatic, and land use conditions by categorizing them and applying algorithms of interaction between these variables. However, in technical literature and in technical reports of state entities that manage natural hazards, new advances are being made in the determination of other aspects or variables that detail the condition of geotechnical susceptibility; at the same time, nowadays there are technological tools for the massive analysis of information and its spatialization. This article presents a new approach to the definition of geotechnically homogeneous zones using these technological tools. A comparison is made against the conventional definition.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121816831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk Management of Pipeline Breakage at River Crossings Through Quantitative Analysis of the Threat, Vulnerability and Consequences","authors":"Carlos Debandi, Fernando Martearena, N. Roth","doi":"10.1115/ipg2019-5327","DOIUrl":"https://doi.org/10.1115/ipg2019-5327","url":null,"abstract":"\u0000 The floods of rivers and streams are among the threats that most frequently cause technological accidents. A quantitative analysis of the risk of breakage of pipelines in crossings with channels is presented.\u0000 The proposed methodology evaluates the risk of rupture of the pipeline quantifying both the threat of being discovered and its vulnerability to hydrodynamic forces and those due to vortex shedding.\u0000 Decision-making for risk mitigation is complemented by the evaluation of the consequences that breakage can produce in the environment and in the activity of the operator, that is, the assessment of the severity of the risk. To this end, the impact is quantified in terms of the extent of the damage caused and the economic losses due to the stoppage of production and the remediation costs.\u0000 Finally, risk management is developed, which includes actions to mitigate the hazard and vulnerability, the priority of each of them and the implementation and monitoring plans.\u0000 The application of the proposed methodology achieves the early identification and reduction of risk of breakage, knowledge of the state of the crosses, objectivity and reliability in the assignment of risk levels and the correct allocation of resources for mitigation.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134238197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oil Pipeline Geohazard Risk Mitigation via On-Line Optical Fiber Strain Monitoring","authors":"A. Mendez, Andrés Salazar Ferro","doi":"10.1115/ipg2019-5303","DOIUrl":"https://doi.org/10.1115/ipg2019-5303","url":null,"abstract":"\u0000 Pipelines are naturally vulnerable to operational, environmental and man-made effects such as internal erosion and corrosion; mechanical deformation due to geophysical risks and ground movements. This paper describes the on-line monitoring ofmultiple critical sections ofburied oil pipelines, part of Ecopetrol’s transportation network across the country, which were experiencing mechanical deformations due to local soil and geohazard effects using fiber optic strain sensors. Over 1,000 individual fiber optic Bragg grating (FBG) strain sensors were installed across 72 different sectors dispersed across the Colombian pipeline network. The system has been in service since 2013 and has helped provide early warning on several severe pipeline accumulated strain deformations and imminent ruptures, as well as to understand the mechanical behavior on buried pipelines under diverse soil geohazard conditions.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123730529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retroerosion in a TBG Gas Pipeline Crossing and its Rehabilitation","authors":"Cesar A. Costa, Walter Schultz Neto, Thiago Wichrestink Zozula","doi":"10.1115/ipg2019-5301","DOIUrl":"https://doi.org/10.1115/ipg2019-5301","url":null,"abstract":"\u0000 This Paper presents a case study of the Jardim Novo Maracanã stream situated in Campinas, São Paulo, in which recent streambed modifications were characterized, aiming to define the rates and the potential erosions along the channel alignment of which have Bolivia-Brazil Gas Pipeline crossing.\u0000 Its presents the erosion process analysis and mitigation concepts aimed at the pipeline and fiber optic cables facilities integrity, as well as to indicate the design issues, considering the streambed deepening in this watershed. For this, satellite images and aerial photographs were collected in different periods, soil and subsoil surveys were performed, information on rainfall and watershed characteristics was analyzed, as well as hydrological and hydrotechnical studies were developed. These studies included geotechnical channel and banks analyzes, the spatial and temporal trends of the fluvial geomorphology evolution and the infrastructures safety conditions analysis.\u0000 It was concluded that a new channel erosion process occurred after the streambed was filled by recent sediments. This process is associated with an increase floods magnitude, the slopes occupation intensification with the county urbanization and the streambed conditions changes, from an alignment sinuous to rectilinear and from a shallow to deeper channel. Once initiated, the channel erosion process maintained its retroerosion, i.e. its “headcutting” trend, deepening its equilibrium profile to its stratigraphic base level, located about 5.0 m below the 2014 stream bottom, in the pipeline cross section. Alternative concepts for the infrastructure integrity rehabilitation in these new morphological-fluvial conditions were also developed and dimensioned. Among these, the rectangular culverts alternative was adopted. They support a landfill at the crossing with the buried pipe and have to 100-year return period peak flows capacity.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126260961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring and Screening of Pipelines for Movement: A Fast and Cost-Effective Alternative for Pipeline Operators to Measure Drift in Pipelines","authors":"M. Schorr, Klaas Kole, Ferdinand Foessing","doi":"10.1115/ipg2019-5324","DOIUrl":"https://doi.org/10.1115/ipg2019-5324","url":null,"abstract":"For pipelines in the oil, gas, and mining industry, movement of pipelines is one of the main integrity hazards. This movement in most cases is caused by landslides instigated by heavy rain, earthquakes or volcanic activities. If the pipeline movement remains undetected at an early stage, it can lead to the need for costly repairs to prevent, remove, or repair potential or actual damage. Moreover, if the movements stay undetected for too long, these lines may fail and lead to catastrophic events.\u0000 This paper will illustrate what a fast and cost-effective solution to avoid these threats at an early stage looks like and how it works. It will explain the process and demonstrate the full power of this technology on the basis of a case study.\u0000 The standard solution for pipelines without a permanent position monitoring system at the time of installation includes the use of intelligent tools that are able to detect even the slightest changes in the trajectory. These inspection tools are quite expensive to run, especially when multiple screening runs are required throughout a year, e.g. before and after the rainy season or after a seismic event. Other monitoring solutions are either limited to only a specific area where the movement has already been detected at an earlier stage or lack the precision required to serve as an early warning system, such as LIDAR or satellite image comparison.\u0000 Over the years, ROSEN has developed a technology that can bridge the gap between frequent measurements and cost-effective service. It is based on an electronic gyroscope that is commonly used in Inline Inspection tools but can also be installed in readily available cleaning tools. When first run in a pipeline, it records the whole pipeline trajectory, leaving no segment undocumented. The next step is to compare these recorded pipeline routing measurements with already existing trajectory baseline data, recorded earlier by any ILI tool with an optical gyro or similar. This comparison will reveal any deviation between both trajectories and precisely determine any pipeline movement. A case study will demonstrate how the comparison is achieved.\u0000 When performing repetitive inspections, this screening comparison enables the operators to detect the onset of movements and monitor the progress of any known pipeline movement. It allows them to distinguish between stable areas from dynamic ground movements and keeps close track of changes in the pipe course. Through regular repetitions, any further development of the movement is tracked, and appropriate reactive measures can be scheduled in a timely manner. This new service provides a cost-effective and powerful early warning tool for geological pipeline integrity threats that can lead to loss of integrity, the asset, or — worst-case scenario — loss of life or environmental contamination, while at the same time, it reduces the necessity of pipeline intervention that will affect production.","PeriodicalId":325632,"journal":{"name":"ASME-ARPEL 2019 International Pipeline Geotechnical Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132325783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}