Pipeline Repair of Corrosion and Dents: A Comparison of Composite Repairs and Steel Sleeves

ABSTRACT: When pipeline repairs are made on high pressure onshore transmission pipelines, in modern times repairs typically involve steel sleeves or composite repair systems. A comprehensive testing program was conducted to evaluate the repair of severe corrosion and dents using...

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Brittle Fracture Assessments of Offshore PSVs

ABSTRACT: Pressure safety relief valve needs to be designed and operated to assure metal temperatures are not lower than the Minimum Allowable Temperature (MAT) to prevent brittle fractures. Design and fitness for service codes include general procedures to prevent brittle...

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Intentional Destructive Testing: Establishing Mechanical Integrity in Plants, Facilities, and Pipelines

ABSTRACT: Operators of plants, facilities, and pipelines have at their disposal multiple resources for evaluating the integrity of identified features and anomalies. With advances in inspection technology, industry is being called upon to evaluate an ever-increasing number of...

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Assessment of Ultra Deepwater Riser Concepts for High-Motion Vessels

ABSTRACT: The paper presents the results of the second half of a study funded by Research Partnership to Secure Energy for America (RPSEA) under project 10121-4401-02 Ultra-Deepwater Riser Concepts for High Motion Vessels. In the first half of the study, candidate riser systems...

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Subsea Wellhead and Riser Fatigue Monitoring in a Strong Surface and Submerged Current Environment

ABSTRACT: A drilling campaign was recently undertaken by Shell Oil Company in a region with high surface and submerged currents.  The water depth ranged from 5500-7000 ft at the various well sites in the region.  Strong surface currents with maximum speeds of 4.5-5.0 knots were...

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Predictive Analysis of Flexible Pouch Performance

ABSTRACT:   The importance of flexible packaging is growing in the consumer products industry.  This evolution in packaging is readily observable when walking down the food or cleaning products isle of the grocery store.  As a packaging structure, however, flexibles pose...

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Tutorial on Auto-Refrigeration/Brittle Fracture Preventions

ABSTRACT:   This tutorial will describe the major steps for the evaluation of a process unit for auto-refrigeration and brittle fracture.  Major topics include: Auto-Refrigeration and Brittle Fracture basics Vessel identification – potential for...

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Brittle Fracture Assessments on Offshore Piping Systems

ABSTRACT:   Offshore piping systems may be subject to low temperatures due to operation related scenarios and are cause for brittle fracture concern. The analyses included in this work consider probable events leading to low temperature conditions such as...

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Real-Time Fatigue Monitoring Routine: Architecture, Data and Results

ABSTRACT:   Recently, the Modal Decomposition and Reconstruction (MDR) algorithm was developed to accurately estimate fatigue damage in marine risers based on measured acceleration and angular rates at several locations. The greatest benefit for drilling risers can be...

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