A NEW TOOL FOR LARGE-SCALE OIL COMBAT

1995 ◽  
Vol 1995 (1) ◽  
pp. 855B-857
Author(s):  
M. R. Ouwerkerk ◽  
P. R. H. Verbeek ◽  
T. Schut
Keyword(s):  
Oil Spill ◽  
Large Scale ◽  
The World ◽  
Different Types ◽  
Recent Developments ◽  
Oil Spill Response ◽  
Response Systems ◽  
Oil Spill Cleanup

ABSTRACT Trailing suction hopper dredges maintain ports and their entrance channels around the world. Several of these dredges have already operated as oil spill cleanup vessels as a secondary assignment. Different types of available oil spill response systems were applied. Recent developments allow these dredges to use their own dredge pumps, making these vessels by far the largest capacity oil spill cleanup vessels available in the world. The add-on system requires no modifications of the vessel and a relatively low investment. Tests have documented very good performance.

JUST MAKE IT HAPPEN: LOGISTICS CONCEPTS, PROCESSES, AND INFRASTRUCTURE IN MAJOR OIL SPILL RESPONSE

1995 ◽  
Vol 1995 (1) ◽  
pp. 645-650 ◽  
Author(s):  
John R. Ives
Keyword(s):  
Puerto Rico ◽  
Oil Spill ◽  
Large Scale ◽  
Contingency Planning ◽  
Support Strategies ◽  
Major Response ◽  
Comprehensive Examination ◽  
Oil Spill Response ◽  
And Control ◽  
Oil Spill Cleanup

ABSTRACT A comprehensive examination of the major logistics elements of a large-scale oil spill removal organization (OSRO) has been completed, focusing on the contingency support aspects of the organization—the development of oil spill logistics concepts, processes, and infrastructure. The key principles associated with command and control, contingency planning, and resource management were considered in the context of the most recent major response—the barge Morris J. Berman spill at San Juan, Puerto Rico. The manner in which sound logistics support strategies quickly injected organization into response processes, shaped available options, and influenced the success of a major oil spill cleanup operation was observed and examined.

scholarly journals Google matrix analysis of worldwide football mercato

2018 ◽  
Author(s):  
José Lages ◽  
Justin Loye ◽  
Célestin Coquidé ◽  
Guillaume Rollin
Keyword(s):  
Large Scale ◽  
World Wide ◽  
Matrix Analysis ◽  
Two Dimensional ◽  
Network Nodes ◽  
Pagerank Algorithm ◽  
Google Matrix ◽  
Football Clubs ◽  
The World ◽  
Different Types

The worldwide football transfer market is analyzed as a directed complex network: the football clubs are the network nodes and the directed edges are weighted by the total amount of money transferred from a club to another. The Google matrix description allows to treat every club independently of their richness and allows to measure for a given club the efficiency of player sales and player acquisitions. The PageRank algorithm, developed initially for the World Wide Web, naturally characterizes the ability of a club to import players. The CheiRank algorithm, also developed to analyze large scale directed complex networks, characterizes the ability of a club to export players. The analysis in the two-dimensional PageRank-CheiRank plan permits to determine the transfer balance of the clubs in a more subtle manner than the traditional import-export scheme. We investigate the 2017-2018 mercato concerning 2296 clubs, 6698 player transfers, and 147 player nationalities. The transfer balance is determined globally for different types of player trades (defender, midfielder, forward, …) and for different national football leagues. Although, on average, the network transfer flows from and to clubs are balanced, the discrimination by player type draws a specific portrait of each football club.

scholarly journals Adaptive Provisioning of Heterogeneous Cloud Resources for Big Data Processing

2018 ◽  
Vol 2 (3) ◽  
pp. 15 ◽  
Author(s):  
Maarten Kollenstart ◽  
Edwin Harmsma ◽  
Erik Langius ◽  
Vasilios Andrikopoulos ◽  
Alexander Lazovik
Keyword(s):  
Large Scale ◽  
A Priori ◽  
Lead Times ◽  
Cloud Infrastructure ◽  
Good Utilization ◽  
Different Types ◽  
Recent Developments ◽  
Task Processing ◽  
Heterogeneous Cloud ◽  
Pipeline Failures

Efficient utilization of resources plays an important role in the performance of large scale task processing. In cases where heterogeneous types of resources are used within the same application, it is hard to achieve good utilization of all of the different types of resources. By taking advantage of recent developments in cloud infrastructure that enable the use of dynamic clusters of resources, and by dynamically altering the size of the available resources for all the different resource types, the overall utilization of resources, however, can be improved. Starting from this premise, this paper discusses a solution that aims to provide a generic algorithm to estimate the desired ratios of instance processing tasks as well as ratios of the resources that are used by these instances, without the necessity for trial runs or a priori knowledge of the execution steps. These ratios are then used as part of an adaptive system that is able to reconfigure itself to maximize utilization. To verify the solution, a reference framework which adaptively manages clusters of functionally different VMs to host a calculation scenario is implemented. Experiments are conducted based on a compute-heavy use case in which the probability of underground pipeline failures is determined based on the settlement of soils. These experiments show that the solution is capable of eliminating large amounts of under-utilization, resulting in increased throughput and lower lead times.

THE EFFICIENCY OF ELASTOMERS IN OIL SPILL CLEANUP

1987 ◽  
Vol 1987 (1) ◽  
pp. 231-233
Author(s):  
Paul Waters ◽  
Albert F. Hadermann
Keyword(s):  
Molecular Weight ◽  
Tensile Stress ◽  
Oil Spill ◽  
Ultrahigh Molecular Weight ◽  
Oil Spill Response ◽  
Oil Spill Cleanup

ABSTRACT When ultrahigh molecular weight elastomers are dissolved in hydrocarbon liquids the resulting solutions become highly cohesive under tensile stress. The effect increases with increasing molecular weight and concentration of the polymer, decreasing temperature, and increasing viscosity of the liquid. The benefits derived from using ultrahigh molecular weight elastomers in oil spill response and removal activities are: increased resistance to spreading, automatic separation of oil and water at the skimmer, and increased capacity of skimmer devices. In general, these benefits translate into reduced labor, transportation, storage or disposal costs.

EFFECTIVELY MANAGING LEVEL OF EFFORT IN OIL SPILL CLEANUP: RESOLVING THE “HOW CLEAN IS CLEAN” ISSUE

1995 ◽  
Vol 1995 (1) ◽  
pp. 663-666
Author(s):  
Peter A. Tebeau
Keyword(s):  
Oil Spill ◽  
Effective Management ◽  
Response Effort ◽  
Environmental Benefit ◽  
Exxon Valdez ◽  
Management Decisions ◽  
Oil Spill Response ◽  
Oil Spill Cleanup ◽  
Level Of Effort

ABSTRACT Successful oil spill response requires effectively managing the level of effort devoted to response operations. This includes choosing appropriate technologies and implementing them to achieve optimal environmental benefit, while controlling costs. At the end of the response, effective management requires resolving the “how clean is clean” issue to ensure a smooth termination of the response effort. Various approaches to making these management decisions are reviewed, based on experience in the Exxon Valdez, American Trader, and Morris J. Berman spills. The advantages and constraints of these approaches are summarized, along with suggestions about how the process might be facilitated.

PREVENTIVE SALVAGE: THE GAP IN OPA POLLUTION DEFENSES

1993 ◽  
Vol 1993 (1) ◽  
pp. 659-661
Author(s):  
John Arnold Witte
Keyword(s):  
United States ◽  
Oil Spill ◽  
Oil Pollution ◽  
The United States ◽  
Strong Emphasis ◽  
The World ◽  
Oil Spill Cleanup ◽  
Marine Environmental

ABSTRACT Despite the strong emphasis on oil spill cleanup in the Oil Pollution Act of 1990, the United States still faces a major gap in its defenses against oil pollution: the lack of adequate professional ship salvage capability. Availability of preventive salvage capability would contribute to the most effective way of preventing a marine environmental catastrophe: keeping the oil, or chemicals, in the ship. This is especially important in view of the increasing age of the world tanker fleet.

Advances from Arctic Oil Spill Response Research

2017 ◽  
Vol 2017 (1) ◽  
pp. 1487-1506 ◽  
Author(s):  
Joseph V. Mullin
Keyword(s):  
Oil Spill ◽  
Large Scale ◽  
Oil And Gas ◽  
Field Tests ◽  
Field Research ◽  
Oil And Gas Industry ◽  
The Arctic ◽  
Research Projects ◽  
Effective Response ◽  
Oil Spill Response

Abstract 2017-161 Over the past four decades, the oil and gas industry has made significant advances in being able to detect, contain and clean up spills and mitigate the residual consequences in Arctic environments. Many of these advances were achieved through collaborative research programs involving industry, academic and government partners. The Arctic Oil Spill Response Technology - Joint Industry Programme (JIP), was launched in 2012 and completed in early 2017 with the objectives of building on an already extensive knowledge base to further improve Arctic spill response capabilities and better understand the environmental issues involved in selecting and implementing the most effective response strategies. The JIP was a collaboration of nine oil and gas companies (BP, Chevron, ConocoPhillips, Eni, ExxonMobil, North Caspian Operating Company, Shell, Statoil, and Total) and focused on six key areas of oil spill response: dispersants; environmental effects; trajectory modeling; remote sensing; mechanical recovery and in-situ burning. The JIP provided a vehicle for sharing knowledge among the participants and international research institutions and disseminating information to regulators, the public and stakeholders. The network of engaged scientists and government agencies increased opportunities to develop and test oil spill response technologies while raising awareness of industry efforts to advance the existing capabilities in Arctic oil spill response. The JIP consisted of two phases, the first included technical assessments and state of knowledge reviews resulting in a library of sixteen documents available on the JIP website. The majority of the JIP efforts focused on Phase 2, actual experiments, and included laboratory, small and medium scale tank tests, and field research experiments. Three large-scale field tests were conducted in the winter and spring months of 2014–2016 including recent participation of the JIP in the 2016 NOFO oil on water exercise off Norway. The JIP was the largest pan-industry programme dedicated to oil spill response in the Arctic, ever carried out. Twenty seven research projects were successfully and safely conducted by the world’s foremost experts on oil spill response from across industry, academia, and independent scientific institutions in ten countries. The overarching goal of the research was to address the differing aspects involved in oil spill response, including the methods used, and their applicability to the Arctic’s unique conditions. All research projects were conducted using established protocols and proven scientific technologies, some of which were especially adjusted for ice conditions. This paper describes the scope of the research conducted, results, and key findings. The JIP is committed to full transparency in disseminating the results through peer reviewed journal articles, and all JIP research reports are available free of charge at www.arcticresponsetechnology.org.

NOFO Oil spill response “The way we train”

2017 ◽  
Vol 2017 (1) ◽  
pp. 431-446
Keyword(s):  
Oil Spill ◽  
Large Scale ◽  
Performance Requirement ◽  
Incident Command ◽  
Large Scale Field ◽  
Oil Spill Response ◽  
Cost Efficient ◽  
The Individual ◽  
Different Response ◽  
Norwegian Continental Shelf

ABSTRACT In a situation where oil is spilled on the Norwegian Continental Shelf (NCS) the operator is responsible for the oil spill response. To do this in a robust and efficient way Norwegian Clean Seas Association for Operating Companies (NOFO) handles the oil spill response on behalf of all member companies. Handling an oil spill response situation in all its forms from offshore incident to beach restoration involves many different resources, skills and people. Introducing Incident Command System (ICS) as the command system for this task even increases the amount of training we need to do. How can NOFO achieve the optimal training of our common and shared response resources in a time where focus is on an effective and robust response? Having an overview of the different response needs and response plans NOFO coordinates activity, training and exercises in an efficient way. This is done with the aid of NOFO’s operative plan. The plan describes every resource with a performance requirement and puts it in to a response context. This gives NOFO a foundation to build a response that is structured and cost efficient for our members. Furthermore, this enables NOFO to tailor our training and exercises from the individual responder/resource to the complex large-scale field exercise which involves typically 250–350 people from numerous different operating companies, municipalities, governmental and private responders. This paper will describe how we plan, train and exercise on the NCS in order to be prepared for response in an efficient and robust way.

scholarly journals Subsea Mechanical Dispersion (SSMD) a Possible New Option for the Oil Spill Response Toolbox?

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Per Johan Brandvik ◽  
Daniel F. Krause ◽  
Frode Leirvik ◽  
Per S. Daling ◽  
Zach Owens ◽  
...  
Keyword(s):  
Oil Spill ◽  
Large Scale ◽  
Oil And Gas ◽  
Strong Impact ◽  
Oil Droplet ◽  
Mechanical Dispersion ◽  
Large Scale Testing ◽  
Droplet Sizes ◽  
Oil Spill Response ◽  
Close Cooperation

Abstract The size distribution of oil droplets formed in subsea oil and gas blowouts is known to have a strong impact on their subsequent fate in the environment. Small droplets have low rising velocities, are more influenced by oceanographic turbulence and have larger potential for natural biodegradation. Subsea Dispersant Injection (SSDI) is an established method for achieving this goal, lowering the interfacial tension between the oil and water and significantly reducing oil droplet size. However, despite its many advantages, the use of SSDI could be limited both by logistical constraints and legislative restrictions. Adding to the toolkit a method to achieve subsea dispersion, without the use of chemicals, would therefore enhance oil spill response capability. This option is called Subsea Mechanical Dispersion (SSMD). An extensive feasibility study on SSMD has been performed and the main findings are reported in this paper. The work was initiated by BP in 2015 and later followed up by a consortium of Equinor, Total Norge, Aker BP and Lundin. The first phase explored multiple principles of generating subsea dispersions (ultrasonic, mechanical shear forces and water jetting) through both laboratory experiments and modelling. These studies clearly indicate that SSMD has an operational potential to significantly reduce oil droplet sizes from a subsea release and influence the fate and behaviour of the released oil volume. The recent work reported in this paper on operationalisation, upscaling and large-scale testing of subsea water jetting. This work is performed by SINTEF in close cooperation with Exponent (computational fluid dynamics and shear stress modelling) and Oceaneering (operationalisation and full-scale prototyping).

A Survey of Classical and New Response Methods for Marine Oil Spill Cleanup

1994 ◽  
Vol 31 (02) ◽  
pp. 79-93
Author(s):  
Emilio A. Tsocalis ◽  
Thomas W. Kowenhoven ◽  
Anastassios N. Perakis
Keyword(s):  
Oil Spill ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Heavy Oil Recovery ◽  
New Materials ◽  
Marine Oil ◽  
Methods And Techniques ◽  
Oil Spill Response ◽  
Oil Spill Cleanup

Both classical and new marine oil spill cleanup response methods and techniques are discussed. The intention is mainly to answer the fundamental questions of when, where, and how to apply the different methods. A brief review of the stages of the oil spill response problem is first presented, followed by the factors that influence the different methods. This is followed by an analysis of some new cleanup methods and improvements to existing methods, specifically: bioremediation, the use of more efficient ships for skimming, the use of fishing nets for heavy oil recovery, and new materials and designs of sorbents. Some cases are also analyzed to evaluate the performance of some methods under real conditions.

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