.... The results of the study provide valuable scientific basis for the design, maintenance and risk assessment of conductors, and are of great significance for improving the practical application performance and extending the service life of conductors. INTRODUCTION The eastern part of the South China Sea...

... losses over the entire service life of a structure must be determined and included in the design when following a mechanically maintenance-free approach. An analytical determination is already state of the art for uncoated parts (VDI 2230 - Part 1:2015-11). Since parts in steel construction must often...

... and low fabrication and installation cost, is the most installed riser configuration for deepwater oil and gas production worldwide in the last 3 decades. SCRs have been facing more challenging environment (e.g., large OD gas export SCRs, and HPHT applications SCRs) and requests for longer service life...

... ABSTRACT This paper presents a low capital expenditure (CAPEX) monitoring solution for flexible pipeline fatigue integrity assessment. This approach focusses on the processing of floating unit (FU) motion information available in field, to predict remaining service life of operating flexible...

... of the pipeline is below −790 mV, the design of cathodic protection system is reasonable and meet the safety requirements in the service life; (3) the results of numerical calculation is conservative according to the standard, actual service life of sacrificial anode can be longer than the design life...

... incorporating a time hardening creep model based on the Maxwell viscoelastic model to investigate the influence of gap span creep behavior of the polymer barrier on the performance and service life of HPHT deepwater unbonded flexible risers. The analysis results show that this validated gap span creep model...

... the structural integrity. This paper presents an experimental test to evaluate the rate of such neutralization process and the resultant service life of reinforced concrete storage tank. KEY WORDS: Concrete degradation, Neutralization, Acid hydrocarbon/crude oil product INTRODUCTION Conventional hydrocarbon...

... it can be most effective. Introduction The current industry practice requires the fatigue lives of inspectable joints (due to the environmental loads) to be twice the structure's service life; and those of non-inspectable joints to be ten times the service life (e.g. ABS 2003 Table 1). Some...

... and the factors influencing them, allows to estimate the service life of reinforced concrete structures. One of the main degradation processes along with the chloride ingress is carbonation (Leonovich, 2012). In this, the nature of the mechanism is a stochastic process that goes along with large uncertainties...

... reliability random variable statistical analysis well integrity flowline corrosion diameter subsurface corrosion steel pipeline service life pipeline corrosion artificial intelligence statistics assessment materials and corrosion chave probability melcher Proceedings of the Twenty-third...

... Effect of Variation of Cover Depths on the Service Life of Marine Structures Zongquan Ying, Huang Lv, Chaojun Ren CCCC Fourth Harbor Engineering Institute Co., Ltd. Guangzhou, Guangdong, China ABSTRACT A statistical treatment has been applied to cover depths from field test for three existing...

... Extension of Service Life and Considerations on Corrosion Problems of Offshore Wind Energy Converters Stefan Herion1), Torsten Faber2), Jennifer Hrabowski1) 1)Research Centre for Steel, Timber and Masonry, University of Karlsruhe Karlsruhe, Germany 2)Germanischer Lloyd Industrial Services GmbH...

... reliability assessment assessment convex model reliability analysis artificial intelligence information sea state modeling error probability non-probabilistic reliability crack length hybrid model random variable uncertainty parameter offshore structure service life probabilistic model...

... load histogram histogram history peak hawser load simulation fatigue damage fraction anchorage system nw anchorage system service life Fatigue Damage Assessment Techniques for SPM Anchorages Akshay Gupta, Robert D. Caligiuri, Piotr D. Moncarz, and Robert A. Sire Exponent Failure Analysis...

... conditions and throughout the required service time. However, there are systems with a rather short service life and stringent operating limits. Examples of such riser systems are special purpose drill and workover risers which are exposed to high bending stress typically in the drill deck area or when...

... ABSTRACT FPSO vessels are designed to be moored on station for the duration of their service life and it is impractical to return them periodically to dry dock for inspection and maintenance. Reliability Based Inspection (RBI) planning methods are used to focus inspection effort...

... and some man-induced factors. In order to fulfill the safety and normal operating requirements, it is needed to perform periodic maintenance to extend the service life and to keep its function. The full-life cycle optimization design considering the deterioration of bearing capacity during service life has...

... of the structure. These features able to reduce total cost of ownership especially when the service life of a particular eservoir is short and the structure may be easily relocated and reused at the new site. All necessary attachments ormechanisms may be properly designed to suit the structure type in order...

... have high investment costs and are normally not accessible for in-service inspection. Normal fatigue design of chain segments is based on constant amplitude tension data. reliability service life correspond miner rule assumption probability chain segment equation fatigue damage life...

... 1.0 Abstract: This paper describes in detail the methodology used for the reassessment of offshore installations on the Dutch Continental Shelf. The service life extension of four platforms, operated by Elf Petroland b.v., has formed the basis for the development and implementation...