IMCA's Work Programme Continues
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Side Scan Sonar and the Management of Underwater Cultural Heritage Timmy Gambin
259 CHAPTER 15 View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by OAR@UM Side Scan Sonar and the Management of Underwater Cultural Heritage Timmy Gambin Introduction Th is chapter deals with side scan sonar, not because I believe it is superior to other available technologies but rather because it is the tool that I have used in the context of a number of off shore surveys. It is therefore opportune to share an approach that I have developed and utilised in a number of projects around the Mediterranean. Th ese projects were conceptualised together with local partners that had a wealth of local experience in the countries of operation. Over time it became clear that before starting to plan a project it is always important to ask oneself the obvious question – but one that is oft en overlooked: “what is it that we are setting out to achieve”? All too oft en, researchers and scientists approach a potential research project with blinkers. Such an approach may prove to be a hindrance to cross-fertilisation of ideas as well as to inter-disciplinary cooperation. Th erefore, the aforementioned question should be followed up by a second query: “and who else can benefi t from this project?” Benefi ciaries may vary from individual researchers of the same fi eld such as archaeologists interested in other more clearly defi ned historic periods (World War II, Early Modern shipping etc) to other researchers who may be interested in specifi c studies (African amphora production for example). -
IMCA D033 Limitations in the Use of Scuba Offshore
AB The International Marine Contractors Association Limitations in the Use of SCUBA Offshore IMCA D 033 www.imca-int.com October 2003 AB The International Marine Contractors Association (IMCA) is the international trade association representing offshore, marine and underwater engineering companies. IMCA promotes improvements in quality, health, safety, environmental and technical standards through the publication of information notes, codes of practice and by other appropriate means. Members are self-regulating through the adoption of IMCA guidelines as appropriate. They commit to act as responsible members by following relevant guidelines and being willing to be audited against compliance with them by their clients. There are two core committees that relate to all members: Safety, Environment & Legislation Training, Certification & Personnel Competence The Association is organised through four distinct divisions, each covering a specific area of members’ interests: Diving, Marine, Offshore Survey, Remote Systems & ROV. There are also four regional sections which facilitate work on issues affecting members in their local geographic area – Americas Deepwater, Asia-Pacific, Europe & Africa and Middle East & India. IMCA D 033 This guidance document was prepared for IMCA under the direction of its Diving Division Management Committee, enhancing and extending guidance formerly available via guidance note AODC 065, which is now withdrawn. www.imca-int.com/diving The information contained herein is given for guidance only and endeavours to reflect best industry practice. For the avoidance of doubt no legal liability shall attach to any guidance and/or recommendation and/or statement herein contained. Limitations in the Use of SCUBA Offshore 1 BACKGROUND SCUBA – self-contained underwater breathing apparatus – was first developed in the 1940s and has since become widely used for recreational and amateur diving. -
Information Synthesis on the Potential for Bat Interactions with Offshore Wind Facilities
_______________ OCS Study BOEM 2013-01163 Information Synthesis on the Potential for Bat Interactions with Offshore Wind Facilities Final Report U.S. Department of the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs www.boem.gov OCS Study BOEM 2013-01163 Information Synthesis on the Potential for Bat Interactions with Offshore Wind Facilities Final Report Authors Steven K. Pelletier Kristian S. Omland Kristen S. Watrous Trevor S. Peterson Prepared under BOEM Contract M11PD00212 by Stantec Consulting Services Inc. 30 Park Drive Topsham, ME 04086 Published by U.S. Department of the Interior Bureau of Ocean Energy Management Herndon, VA Office of Renewable Energy Programs June 2013 DISCLAIMER This report was prepared under contract between the Bureau of Ocean Energy Management (BOEM) and Stantec Consulting Services Inc. This report has been technically reviewed by BOEM, and it has been approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of BOEM, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. It is, however, exempt from review and compliance with BOEM editorial standards. REPORT AVAILABILITY The report may be downloaded from the boem.gov website through the Environmental Studies Program Information System (ESPIS). You will be able to obtain this report from BOEM or the National Technical Information Service. U.S. Department of the Interior U.S. Department of Commerce Bureau of Ocean Energy Management National Technical Information Service Office of Renewable Energy Programs 5285 Port Royal Road 381 Elden Street, HM-1328 Springfield, Virginia 22161 Herndon, VA 20170 Phone: (703) 605-6040 Fax: (703) 605-6900 Email: [email protected] CITATION Pelletier, S.K., K. -
Problems of Handling Ships Equipped with Azipod Propulsion Systems
PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ z. 95 Transport 2013 Lech Kobyliski Foundation for Safety of Navigation and Environment Protection PROBLEMS OF HANDLING SHIPS EQUIPPED WITH AZIPOD PROPULSION SYSTEMS The manuscript delivered, March 2013 Abstract: Large ships, mainly large cruise vessels, built during last two decades are quite often equipped with revolutionary propulsion devices known under the name AZIPODs. There are many reasons for choosing AZIPODs as main propulsion units, the main reason being excellent manoeuvring characteristics achieved. However in case of large propulsion units, having power of 15-25 MW, used for propulsion there are also some disadvantages and limitations, the last mainly related to operational factors. Handling of ships equipped with AZIPODS is different from handling conventional ships and in certain manoeuvring situations safety of the ship and of the propulsion units might be endangered.. Therefore some limitations imposed on handling procedures are necessary and it is essential that pilots and masters of ships fitted with AZIPODs must be specially trained. Keywords: ship manoeuvrability, podded propulsion, handling of ships with Azipods 1. INTRODUCTION During recent times the new type of vessel has been introduced to the world shipping fleet in large numbers. This type is passenger cruise vessel. Statistics of ships in operation and on order reveals that more than 750 ships of different size that could be defined as cruise ships are recently in operation, more than about 50 of them are large ships of more than 250 metres in length and carrying sometimes as much as 6000 passengers. According to the definition cruise ship is usually a very large passenger ship that makes a roundtrip with several en route stops and takes passengers only at the port where trip begins and ends. -
Optimal Thrust Allocation Methods for Dynamic Positioning of Ships
Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science Delft Institute of Applied Mathematics Optimal Thrust Allocation Methods for Dynamic Positioning of Ships A thesis submitted to the Delft Institute of Applied Mathematics in partial fulfillment of the requirements for the degree MASTER OF SCIENCE in APPLIED MATHEMATICS by CHRISTIAAN DE WIT Delft, the Netherlands July 2009 Copyright © 2009 by Christiaan de Wit. All rights reserved. MSc THESIS APPLIED MATHEMATICS “Optimal Thrust Allocation Methods for Dynamic Positioning of Ships” CHRISTIAAN DE WIT Delft University of Technology Daily supervisor Responsible professor Dr. J.W. van der Woude Prof. dr. K.I. Aardal Other thesis committee members M. Gachet, Ingenieur ENSTA Dr. R.J. Fokkink July 2009 Delft, the Netherlands Optimal Thrust Allocation Methods for Dynamic Positioning of Ships Christiaan de Wit July 2009 Environment from Abstract The first Dynamic Positioning (DP) systems emerged in the 1960’s from the need for deep water drilling by the offshore oil and gas industry, as conventional mooring systems, like a jack-up barge or an anchored rig, can only be used in shallow waters. GustoMSC has been developing DP drill ships since the early 1970’s and it is still one of their core businesses. DP systems automatically control the position and heading of a ship subjected to environmental and external forces, using its own actuators. The thrust allocator of a DP system is responsible for the thrust distribution over the actuators of the ship. Apart from minimizing the power consumption an ideal thrust allocator can also take other aspects into account, such as forbidden/spoil zones and thruster relations. -
Integrating INS and GNSS Sensors to Provide Reliable Surface Positioning
Author’s Name Name of the Paper Session DYNAMIC POSITIONING CONFERENCE October 9-10, 2012 SENSORS I SESSION Integrating INS and GNSS Sensors to Provide Reliable Surface Positioning By David Russell VERIPOS David Russell, VERIPOS Integrating INS and GNSS Sensors to Provide Reliable Surface Positioning ABSTRACT The ideal surface positioning system will provide a constant, stable, accurate and repeatable position in real-time which is essential to safe and productive operations. In perfect conditions, GNSS along with augmentation data can deliver this performance and with the modernization of existing constellations and the imminent arrival of new satellite constellations the performance and availability of GNSS should improve. However, while additional observations will be available, the satellite signals are still susceptible to effects of ionosphere scintillation and interference whether intentional or un-intentional plus signal blockage can occur when working close to platforms and this will result in degraded positioning. Inertial Navigation involves determining a position through dead reckoning using gyros and accelerometers to calculate changes in position, velocity and attitude. Inertial Navigation Systems (INS) are completely self contained and inherently robust providing output with exceptional good short term accuracy but the position accuracy will drift with time. INS and GNSS are complementary sensors and when combined can deliver constant, stable, accurate and repeatable positioning. The integration of GNSS and inertial technologies exploits the long term accuracy and precision characteristics of GNSS positioning with the continuous availability and fast update rate of inertial sensors. The resulting integrated system can bridge GNSS disruptions (e.g. ionospheric scintillation, physical obstructions, etc.) as well as detecting position outliers due to common mode failures which can affect vessel GNSS systems simultaneously which is particularly advantageous for DP operations. -
Environmental, Health, and Safety Guidelines for Offshore Oil and Gas Development
ENVIRONMENTAL, HEALTH, AND SAFETY GUIDELINES OFFSHORE OIL AND GAS DEVELOPMENT June 5, 2015 ENVIRONMENTAL, HEALTH, AND SAFETY GUIDELINES FOR OFFSHORE OIL AND GAS DEVELOPMENT INTRODUCTION 1. The Environmental, Health, and Safety (EHS) Guidelines are technical reference documents with general and industry-specific examples of Good International Industry Practice (GIIP).1 When one or more members of the World Bank Group are involved in a project, these EHS Guidelines are applied as required by their respective policies and standards. These industry sector EHS guidelines are designed to be used together with the General EHS Guidelines document, which provides guidance to users on common EHS issues potentially applicable to all industry sectors. For complex projects, use of multiple industry sector guidelines may be necessary. A complete list of industry sector guidelines can be found at: www.ifc.org/ehsguidelines. 2. The EHS Guidelines contain the performance levels and measures that are generally considered to be achievable in new facilities by existing technology at reasonable costs. Application of the EHS Guidelines to existing facilities may involve the establishment of site-specific targets, with an appropriate timetable for achieving them. 3. The applicability of the EHS Guidelines should be tailored to the hazards and risks established for each project on the basis of the results of an environmental assessment in which site-specific variables, such as host country context, assimilative capacity of the environment, and other project factors, are taken into account. The applicability of specific technical recommendations should be based on the professional opinion of qualified and experienced persons. 4. When host country regulations differ from the levels and measures presented in the EHS Guidelines, projects are expected to achieve whichever are more stringent. -
Overview of Geophysical and Geotechnical Marine Surveys for Offshore Wind Transmission Cables in the UK September 2015
Overview of geophysical and geotechnical marine surveys for offshore wind transmission cables in the UK September 2015 Overview of geophysical and geotechnical marine surveys for offshore wind transmission cables in the UK Disclaimer Whilst the information contained in this report has been prepared and collated in good faith, the Offshore Wind Programme Board (OWPB) makes no representation or warranty (express or implied) as to the accuracy or completeness of the information contained in this report (including any enclosures and attachments) nor shall be liable for any loss or damage, whether direct or consequential, arising from reliance on this report by any person. In particular, but without limitation, the OWPB accepts no responsibility for accuracy and completeness for any comments on, or opinions regarding the functional and technical capabilities of any software, equipment or other products mentioned in the report. The OWPB is not responsible in any way in connection with erroneous information or data contained or referred to in this document. It is up to those who use the information in this report to satisfy themselves as to its accuracy. This report and its contents do not constitute professional advice. Specific advice should be sought about your specific circumstances. The information contained in this report has been produced by a working group of industry professionals and has not been subject to independent verification. The OWPB has not sought to independently corroborate this information. The OWPB accepts no responsibility for accuracy and completeness for any comments on, or opinions regarding the functional and technical capabilities of any software, equipment or other products mentioned. -
DYNAMIC POSITIONING ACCREDITATION and CERTIFICATION SCHEME STANDARD January 2017
DYNAMIC POSITIONING ACCREDITATION AND CERTIFICATION SCHEME STANDARD Effective Date 1st January 2017 DISCLAIMER While every effort has been made to ensure that all the information in this document is updated and correct, The Nautical Institute cannot be held responsible for any loss, financial or otherwise, direct or indirect, resulting from use of this information. Likewise, The Nautical Institute cannot be held responsible for any damage to property, trainers or operators while following these guidelines. This information is produced in good faith, but we cannot guarantee the accuracy and/or completeness of the information which is produced for guidance purposes only. DYNAMIC POSITIONING ACCREDITATION AND CERTIFICATION SCHEME STANDARD January 2017 © The Nautical Institute 2016 202 Lambeth Road, London, SE1 7LQ - United Kingdom Tel: +44 (0) 207 928 1351 Fax: (0) 207 401 2817 www.nautinst.org www.nialexisplatform.org DPACCSTD-v1.1-Jan 2017 CONTENTS 1. INTRODUCTION TO THE DYNAMIC POSITIONING OPERATOR TRAINING STANDARD ........................... 2 2. OFFSHORE TRAINING SCHEME ............................................................................................................ 6 3. SHUTTLE TANKER TRAINING SCHEME ................................................................................................ 10 4. ACCREDITATION ................................................................................................................................ 13 APPENDIX A - MINIMUM QUALIFICATION REQUIREMENT ............................................................................ -
Rules for Building and Classing Mobile Offshore Units 2021
Rules for Building and Classing Mobile Offshore Units Part 8 Specific Unit Types July 2021 RULES FOR BUILDING AND CLASSING MOBILE OFFSHORE UNITS JULY 2021 PART 8 SPECIFIC UNIT TYPES American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 © 2021 American Bureau of Shipping. All rights reserved. ABS Plaza 1701 City Plaza Drive Spring, TX 77389 USA PART 8 Specific Unit Types CONTENTS CHAPTER 1 Mobile Offshore Units..........................................................................1 Section 1 General..............................................................................2 CHAPTER 2 Drilling Units.........................................................................................5 Section 1 General..............................................................................7 CHAPTER 3 Accommodation Units.......................................................................19 Section 1 General............................................................................20 CHAPTER 4 Crane Units.........................................................................................24 Section 1 General............................................................................25 CHAPTER 5 Construction and Maintenance Units.............................................. 27 Section 1 General............................................................................28 CHAPTER 6 Drilling Tenders..................................................................................30 Section 1 General............................................................................31 -
Offshore Wind Turbine Foundation Installation Vessel
Off shore Reliable partner for effi cient off shore soluti ons Royal IHC – Off shore Smitweg 6, 2961 AW Kinderdijk P.O. Box 1, 2960 AA Kinderdijk The Netherlands T +31 78 691 09 11 off [email protected] www.ihcmerwede.com Contents Royal IHC – Off shore 4 Reliable partner for effi cient off shore soluti ons Market segments 6 Oil and gas 7 Renewable energy Product groups 8 Pipelaying 4 12 2524 12 Cablelaying 16 Module handling and well interventi on 18 Off shore support 20 Diving support 24 Off shore wind farm installati on 26 Pile-driving 28 FPSO installati on and offl oading 30 Handling, lift ing and deep-water lowering 32 Hydraulic systems 33 Electrical power and automati on systems 6 17 26 34 IHC Life-cycle support 7 18 32 8 20 34 2 Royal IHC | Off shore Off shore | Royal IHC 3 Royal IHC – Off shore SAPURA DIAMANTE Royal IHC’s off shore division strives to deliver the best value to its customers. It is a partner of choice for innovati ve, Reliable partner for sustainable and integrated off shore vessels and equipment. IHC’s off shore soluti ons are reliable, effi cient and fl exible to the demands of challenging seabed-to-surface oil and gas projects, and the renewable energy market. With its extensive effi cient off shore soluti ons knowledge and in-house design capabiliti es, IHC ensures compliance with the latest technological developments, strictest safety regulati ons and most stringent environmental standards. Reliable IHC excels at managing the complexity inherent within the development of vessels. -
Norway/UK Regulatory Guidance for Offshore Diving
AB The International Marine Contractors Association Norway/UK Regulatory Guidance for Offshore Diving (NURGOD) IMCA D 034 www.imca-int.com December 2003 AB The International Marine Contractors Association (IMCA) is the international trade association representing offshore, marine and underwater engineering companies. IMCA promotes improvements in quality, health, safety, environmental and technical standards through the publication of information notes, codes of practice and by other appropriate means. Members are self-regulating through the adoption of IMCA guidelines as appropriate. They commit to act as responsible members by following relevant guidelines and being willing to be audited against compliance with them by their clients. There are two core activities that relate to all members: Safety, Environment & Legislation Training, Certification & Personnel Competence The Association is organised through four distinct divisions, each covering a specific area of members’ interests: Diving, Marine, Offshore Survey, Remote Systems & ROV. There are also four regional sections which facilitate work on issues affecting members in their local geographic area – Americas Deepwater, Asia-Pacific, Europe & Africa and Middle East & India. IMCA D 034 The Norway/UK Regulatory Guidance for Offshore Diving (NURGOD) has been developed jointly by IMCA, under the direction of its Diving Division Management Committee, and OLF (Oljeindustriens Landsforening – The Norwegian Oil Industry Association). www.imca-int.com/diving The information contained herein is given for guidance only and endeavours to reflect best industry practice. For the avoidance of doubt no legal liability shall attach to any guidance and/or recommendation and/or statement herein contained. Norway/UK Regulatory Guidance for Offshore Diving IMCA D 034 – December 2003 1 Introduction and Scope...................................................................................................