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Cadelano G.,CNR Construction Technologies Institute | Bortolin A.,CNR Construction Technologies Institute | Ferrarini G.,DII UNIPD | Molinas B.,Tecnomare S.p.A. | And 3 more authors.
Journal of Nondestructive Evaluation | Year: 2016

This article summarizes the main results of an investigation about the corrosion detection in pipelines by infrared thermography, a non-destructive testing and evaluation technique that allows a reliable and fast analysis of large surfaces. The experimental work has been carried out in laboratory on a specimen that has been manufactured using a piece of a real pipeline system for oil transportation. Defects of different kinds have been artificially introduced in such a system to be tested by thermography. The objective is the detection and analysis of the presence of water in the pipeline jacketing system, that is the cause of the corrosion under insulation. Standards indicate thermography as a technique for the detection of this last phenomena, even though a precise procedure is not defined up today. This work aims at contributing in the specification of such a procedure. © 2016, Springer Science+Business Media New York.


Biondini F.,Polytechnic of Milan | Nero A.,Tecnomare S.p.A
Journal of Structural Engineering | Year: 2011

A novel approach to nonlinear finite-element analysis of concrete structures exposed to fire is presented. The proposed formulation refers to frame systems, but it can be extended to other types of structures. The main novelty of this formulation is the use of a special class of evolutionary algorithms, known as cellular automata, to describe the heat transfer process induced by fire and to create an effective link between the simulation of the thermal process and the structural analysis. The heat transfer process is reproduced by considering heat conduction, heat convection, and thermal radiation. The temperature effects on the structural performance are taken into account by means of temperature-dependent thermal and mechanical properties of concrete and steel. In this way, the general criteria for nonlinear finite-element analysis of concrete structures are applied to formulate a cellular reinforced concrete beam element with temperature-dependent characteristics. The effectiveness and applicability in engineering practice of the proposed formulation is demonstrated through applications. The results prove the accuracy of the proposed procedure and show that, for statically indeterminate structures, fire safety needs to be evaluated at the global level by taking into account the actual role played by the structural scheme. © 2011 American Society of Civil Engineers.


Chierici F.,National institute for astrophysics | Chierici F.,CNR Marine Science Institute | Chierici F.,Italian National Institute of Geophysics and Volcanology | Favali P.,Italian National Institute of Geophysics and Volcanology | And 10 more authors.
Proceedings of the International Offshore and Polar Engineering Conference | Year: 2012

The NEMO-SN1 (NEutrino Mediterranean Observatory - Submarine Network 1) seafloor observatory is located in the central Mediterranean, Western Ionian Sea, off Eastern Sicily Island (Southern Italy) at 2100 m water depth, 25 km from the harbour of the city of Catania. It is a prototype of cabled deep-sea multiparameter observatory, and the first operating with real-time data transmission in Europe since 2005. NEMO-SN1 is also the first-established node of EMSO (European Multidisciplinary Seafloor Observatory, http://emso-eu.org), one of the European large-scale research infrastructures. EMSO will address long-term monitoring of environmental processes related to marine ecosystems, climate change and geo-hazards. NEMO-SN1 will perform geophysical and environmental long-term monitoring by acquiring seismological, geomagnetic, gravimetric, accelerometric, physico-oceanographic, hydro-acoustic, bio-acoustic measurements to study earthquake and tsunami generation, and to characterize ambient noise which includes marine mammal sounds, and environmental and anthropogenic sources. NEMO-SN1 is also equipped with a prototype tsunami detector, based on the simultaneous measurement of the seismic and bottom pressure signals and a new high performance tsunami detection algorithm. NEMO-SN1 will be a permanent tsunami early warning node in Western Ionian Sea, an area where very destructive earthquakes have occurred in the past, some of them tsunamigenic (e.g., 1693, M=7.5; 1908, M=7.4). Another important feature of NEMO-SN1 is the installation of a low frequency-high sensibility hydrophone and two (scalar and vector, respectively) magnetometers. The objective is to improve the tsunami detection capability of SN1 through the recognition of tsunami-induced hydro-acoustic and electro-magnetic precursors. Copyright © 2012 by the International Society of Offshore and Polar Engineers (ISOPE).


Vincenzi L.,Tecnomare SpA | Suzuki S.,Toshiba Corporation | Outcalt D.,General Electric | Heberlein J.,University of Minnesota
Journal of Thermal Spray Technology | Year: 2010

In order to identity means to improve plasma spray consistency, various modifications to the design of a commercial plasma torch nozzle have been investigated. The modifications consist of preparing anode inserts with grooves in the axial direction (spline insert), and introducing a fraction of the plasma gas through a ring of micro-nozzles surrounding the anode nozzle (micro-jet ring). Different designs for each modification have been investigated, and these modifications have also been paired with a modified upstream gas injector. For each of the modified designs, a wide range of characteristics have been measured for the arc, the plasma jet, the in-flight particles, and the coating. The results show that most nozzle modifications lead to higher particle temperatures and velocities. The plasma jet is significantly elongated by using some of the modified nozzles, and the cold gas entrainment somewhat reduced. Each of the nozzle modifications can be easily implemented offering an economical way to enhance process reliability. © ASM International.


Cherubin P.,Tecnomare SpA | Pellino S.,Sviluppo Tecnologie Industriali | Petrone A.,ENI S.p.A
Process Safety Progress | Year: 2011

Large losses are typically the result of the failure of multiple safety barriers, often within complex scenarios. An innovative methodology accompanied by a dedicated software baseline risk assessment tool (BART) has been set up to cover all types of onshore and offshore installations and to allow any exploration and production organization to monitor all of its assets' status with a common and standardized approach. The BART tool combines a simplified quantitative risk assessment methodology with a bow-tie model approach to identify and assess potential hazards and associated risks, that may arise from a process or activity carried out in an upstream onshore/offshore installation. The event sequence of any major incident is analyzed from the identification of primary root causes up to the determination of potential effects and associated impacts. Therefore, all existent safety barriers are identified and their prevention and mitigation risk reduction contributions are included in the analysis. The BART tool allows for a systematic monitoring of all major incident risks through the selection of effective control measures able to reduce the likelihood and/or to limit the potential effects of current risks. The BART methodology has been tested on some existing onshore and offshore oil and gas installations, and the main findings have been positively compared with alternative approaches. © 2011 American Institute of Chemical Engineers (AIChE).


Petrone A.,ENI S.p.A | La Rosa L.,ENI S.p.A | Sordini E.,ENI S.p.A | Scataglini L.,ENI S.p.A | And 6 more authors.
Proceedings - SPE Annual Technical Conference and Exhibition | Year: 2013

The Cost of producing a barrel of oil depends on a variety of factors related to the inherent costs (direct and indirect) associated with oil field exploration, development, exploitation and lifecycle extension up to oil field decommissioning. Yet there are also other variables that enter this already complex equation and contribute to determine the final oil price. Like any other industry, in the oil and gas business, accidents, have negative impacts on operational and financial performances, since they can adversely affect the production process and require proper restoring interventions. Whenever people are injured, assets damaged, the environment polluted and business interrupted, money is unavoidably lost and company image and reputation is compromised. It is not easy to estimate the nature and extent of such losses and translate this estimate in a defined algorithm. However, different components can be evaluated through quantitative and qualitative methodologies. Moving from these considerations, this paper presents a methodology aimed at evaluating the so called "Cost of the risk" of a Barrel of oil that takes into account the following elements: • Process Safety Risk Costs: to face the impact on people due to process Major accidents • Occupational Risk Costs: to face occupational safety hazardous events • Environmental Risk Costs: to address the impact on the environment due to a Blow out event or pipeline ruptures • Asset Risk Costs: to manage the financial impact on the Asset due to process Major accidents • Reputational risks costs: to manage potential impacts on reputation and negative perception of the public of the company. Copyright 2013, Society of Petroleum Engineers.


Cherubin P.,Tecnomare SpA | Pellino S.,Sviluppo Tecnologie Industriali | Carnevale P.,Tecnomare SpA | Bandini R.,Karachaganak Petroleum Operating BV | Cerruti C.,ENI S.p.A
AIChE Annual Meeting, Conference Proceedings | Year: 2010

Large losses are typically the result of the failure of multiple safety barriers, often within complex scenarios. An innovative methodology accompanied by a dedicated software BART (BAseline Risk assessment Tool) has been set up to cover all types of onshore and offshore installations, and to allow any E&P organization to monitor all its asset status with a common and standardized approach. The BART tool combines a simplified quantitative risk assessment methodology with a bow-tie model approach to identify and assess potential hazards and associated risks, arisen from a process or activity carried out in an upstream onshore/offshore installation. The sequence of any major incident is analyzed from the identification of primary root causes up to the determination of potential effects and associated impacts. Therefore, all existent safety barriers are identified and their prevention and mitigation risk reduction contributes included in the analysis. The BART tool allows for a systematic monitoring of all major incident risks through the selection of effective control measures able to reduce the likelihood and/or to limit the potential effects of current risks. The BART methodology has been tested on some existing onshore and offshore Oil & Gas installations and the main findings have been positively compared with alternative approaches.


Petrone A.,ENI S.p.A | Salvador C.,ENI S.p.A | La Rosa L.,ENI S.p.A | Scataglini L.,ENI S.p.A | And 2 more authors.
World Petroleum Congress Proceedings | Year: 2014

The Macondo aftermath proved the need to have a proactive instead of reactive approach Oil Spill preparedness and Emergency Response. The need to have expeditive methodologies is also driven by the new set of international and local regulations that has been established soon after Macondo. The development of an expeditive semiquantitative methodology used to assess the risk of Blow Out and the release from pipeline combined with a Bow tie approach for the identification of preventive and recovery barriers is discussed. This is an abstract of a paper presented at the 21st World Petroleum Congress (Moscow, Russia 6/15/14-6/19/14).


Grasso T.,Tecnomare SpA | Bruni F.,Tecnomare SpA | Filippini M.,Tecnomare SpA | Gasparoni F.,Tecnomare SpA | And 7 more authors.
Proceedings of the International Offshore and Polar Engineering Conference | Year: 2016

Clean Sea is an underwater robot developed by Eni and Tecnomare for Asset Integrity and Environmental Monitoring in oil&gas offshore plants. It is composed of a commercial hybrid ROV/AUV (Sabertooth DH by SAAB Underwater Systems) and a set of interchangeable payloads (e-pods by Tecnomare) that feature a common power&data interface for data logging and intelligent autonomous mission online reprogramming according to payload measurements or other external events. The innovative modular architecture, along with a comprehensive environment and asset integrity sensing system and the on-board intelligence, allow implementing very advanced capabilities. During summer 2015, Clean Sea was adopted for the execution of two pipeline network surveys (Sicily Channel and Ionian Sea) and the activities were carried out both in AUV and ROV mode. Technical results are very encouraging, fulfilling Company specifications and Authorities requirements, and proving to be comparable or better than those collected by classical ROV-based methods. Due to the dimensions and easy maneuverability of the system, light ships of opportunity have been used to support operations, resulting in significant cost reduction with respect to traditional methods. © Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE).


Cimino R.,S.p.A. Development | Brocco V.,S.p.A. Development | Castaldo F.,S.p.A. Development | De Ghetto G.,S.p.A. Development | And 2 more authors.
Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy | Year: 2015

The paper illustrates a project carried out - between 2012 and 2013 - during which the first eni solar/fossil hybrid power plant - without any grid connection and energy storage systems - has been designed, built, started up and successfully operated - in Egyptian Western Desert - over more than 8000 hours. The purpose of the project was to enhance the efficiency of oil production operation by integrating solar with diesel fuelled power production. A patented Power Management Module (PMS) optimizes power flows among the components of the plant, namely Photovoltaic (PV) panels, Diesel Generator (DG) and sucker rods electric engines. The plant has demonstrated reliability in hostile conditions and capability to save diesel fuel and reduce CO2 emissions up to 12 %. Further optimizations have also been identified, in order to enhance the performance of the whole system.

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