Development of an Integrated Approach to the Risk Analysis of a Blow-out 
Accident

Blotto, Paola; Bonuccelli, Michele; Morale, Gianni; Dellarole, E.; Falcitelli, M.; Podenzani, F.

doi:10.2523/86704-ms

Cited by 3 publications

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“…"Blow-out 1" and "Blow-out 2" phases allowed to obtain two PC softwares (for the "Short-Cut" and "Standard" Approaches) for an exhaustive simulation of the consequences of a blow-out. The software has just been presented in other Conferences 1,5,6,7 .…”

Section: "Blow-out Project" Objectives E Work Phasesmentioning

confidence: 99%

The CFD Approach for the Risk Analysis of a Blow-Out Event

Borello¹,

Bonuccelli²,

Morale³

2007

Proceedings of SPE Asia Pacific Health, Safety, and Security Environment Conference and Exhibition

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Section: "Blow-out Project" Objectives E Work Phasesmentioning

confidence: 99%

The CFD Approach for the Risk Analysis of a Blow-Out Event

Borello¹,

Bonuccelli²,

Morale³

2007

Proceedings of SPE Asia Pacific Health, Safety, and Security Environment Conference and Exhibition

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“…As the governing equations are the same for the reactive dispersion, the model used in street canyons could be transferred to complex terrains. And this method has been used by ENI Exploration and Production to do a complete risk analysis of the ignited jet associated with the blowout, in which a series of combustion simulations is carried out and the far-field impact about soot is assessed [13,14].…”

Section: Introductionmentioning

confidence: 99%

Simulation and assessment of SO2 toxic environment after ignition of uncontrolled sour gas flow of well blowout in hills

Zhu

Chen

2010

Journal of Hazardous Materials

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An Innovative Approach for Stochastic Analysis of Blowout Inventories and Impacts

Dellarole¹,

Bonuccelli²,

Frattini³

et al. 2016

SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility

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The uncontrolled eruption of a well is one of the most critical accidents that could happen in the oil and gas industry. Thanks to challenging R&D activities and collaborations, eni Upstream and Technical Services has developed and implemented Rainbow, an integrated methodology for blow-out risk analyses. As the Methodology has been applied in a wide range of HSE studies, the database of the analyzed blowout scenarios has been increasing for about 15 years, including for example release rates, total oil spill volumes and impact parameters (e.g. beached volumes for offshore scenarios and rainout area extension for onshore blowouts).Considering, for example, oil rates (BOPD), they could extend in a range as wide as 5 orders of magnitude, therefore a probabilistic analysis has been performed in order to evaluate the stochastic distribution of the above mentioned impact parameters.Applying short-cut models included in the Rainbow Methodology, the database of the analyzed blowout events has been integrated in order to include all potential scenarios. Moreover, in order to take into account both the local parameters affecting the well blowout frequency and the different flow paths (i.e. in-well geometry) distribution, a complete frequency assessment has been carried out.The stochastic distributions of the following parameters have been obtained as results:• total spill volume (all the scenarios).• extension of impacted areas involved in the oil fallout (for onshore wells).• length of impacted shoreline, oil volumes beached and open sea impacted area extension (for offshore wells, considering both underwater and atmospheric releases).The distribution curves have been clustered distinguishing among:• HPHT and normal wells.• Subsea and atmospheric.• Crude oil and gas condensate wells.The above information can be useful for several purposes, e.g.:• To categorize wells and potential blowouts in a rational risk ranking.• To support the Company clustering procedure focused on the cost evaluation of the blowout events. • To compare the blowout impact distribution with other accidents associated to hydrocarbon releases in the environment (e.g. tanker/ship, pipeline, storage, etc.)The comparison between the stochastic distribution curves and some real accidents (including Macondo blowout) occurred in the oil and gas industry is also presented in the Paper.

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Development of an Integrated Approach to the Risk Analysis of a Blow-out Accident

Cited by 3 publications

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The CFD Approach for the Risk Analysis of a Blow-Out Event

The CFD Approach for the Risk Analysis of a Blow-Out Event

Simulation and assessment of SO2 toxic environment after ignition of uncontrolled sour gas flow of well blowout in hills

An Innovative Approach for Stochastic Analysis of Blowout Inventories and Impacts

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