نتایج جستجو برای: subsea pipeline
تعداد نتایج: 30273 فیلتر نتایج به سال:
Offshore oil spills may pose a severe threat to marine ecological environment. In this paper, new methodology based on Bayesian network (BN) and Influence Diagram (ID) is developed for risk management emergency decision-making of spill accidents. The integrates before accident response after accident, which can balance cost, render an optimal decision-making. Marine scenarios including root cau...
background economic consequence analysis is vital for recognizing pipeline comprehensive risk analysis and emergency response planning. objectives the purpose of this study was to estimate economic loss due to fire and explosion in petrochemical feed and product pipelines. materials and methods the present study which performed on 47 pipelines of a petrochemical special zone, pertinent pipeline...
In-band full-duplex communication offers significant potential to enhance network performance. This paper presents the linear transmit delay allocation MAC (FD-LTDA-MAC) protocol for based underwater acoustic chain networks (FD-UACNs) subsea pipeline monitoring. incorporates a number of extensions LTDA-MAC in order fully exploit advantages efficiency facility The uses greedy optimisation algori...
Original scientific paper The multiplex (MUX) control system of subsea blowout preventer (BOP) plays a vital role in providing safe working conditions for the subsea drilling activities. According to the working states and critical failure modes of the MUX control system, this paper presents its stochastic Petri nets (SPN) model, taking into account the imperfect fault detection capacity. The n...
Nowadays the urbanization is developing rapidly, and it leads to growing demand for gas; which resulted in denser pipeline network, by the following increase in the pipeline network congestion, accidents will become inevitable. So Pipelines are a remarkable source of hazard for their adjacent society. Usually Indexing system method is used for pipe line risk assessment. This method assesses ri...
The deployment of offshore platforms for the extraction oil and gas from subsea reservoirs presents unique challenges, particularly when multiple are connected by a network. In Santos basin, aim is to maximize production while maintaining safe sustainable levels CO2 content pressure in stream. To address these novel methodology has been proposed that uses boundary conditions coordinate use shar...
The objective of this work is to allow subsea teleop-erative tasks to be performed eeciently even when all communication between human operator and remote robot is via an acoustic link. This paper describes the integration of remote site cameras into the telepro-gramming system. Images from these cameras may be used for calibrating and maintaining the world model as well as for aiding the opera...
Oil and Gas offshore pipelines, often pass through large geographical areas, from the supply point to the end-user, crossing seismic-active areas. For unburied pipelines, both seismic ground wave and permanent ground deformation can cause severe damage to pipelines, depending on the pipeline geometry and connected structures. Due to the largely non-linear nature of the problem, a finite element...
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