RECOMMENDED PRACTICE DNVGL-RP-E307 Edition July 2015 Dynamic positioning systems - operation guidance The electronic pdf version of this document found through http://www.dnvgl.com is the officially binding version. The documents are available free of charge in PDF format. DNV GL AS FOREWORD DNV GL recommended practices contain sound engineering practice and guidance. © DNV GL AS July 2015 Any comments may be sent by e-mail to [email protected] This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document. The use of this document by others than DNV GL is at the user's sole risk. DNV GL does not accept any liability or responsibility for loss or damages resulting from any use of this document. CHANGES – CURRENT General This document supersedes DNV RP-E307, January 2011. Text affected by the main changes in this edition is highlighted in red colour. However, if the changes involve a whole chapter, section or sub-section, normally only the title will be in red colour. On 12 September 2013, DNV and GL merged to form DNV GL Group. On 25 November 2013 Det Norske Veritas AS became the 100% shareholder of Germanischer Lloyd SE, the parent company of the GL Group, and on 27 November 2013 Det Norske Veritas AS, company registration number 945 748 931, changed its name to DNV GL AS. For further information, see www.dnvgl.com. Any reference in this document to “Det Norske Veritas AS”, “Det Norske Veritas”, “DNV”, “GL”, “Germanischer Lloyd SE”, “GL Group” or any other legal entity name or trading name presently owned by the DNV GL Group shall therefore also be considered a reference to “DNV GL AS”. Changes – current Editorial corrections In addition to the above stated main changes, editorial corrections may have been made. Recommended practice DNVGL-RP-E307 – Edition July 2015 Page 3 DNV GL AS CONTENTS CHANGES – CURRENT .................................................................................................. 3 Sec.1 General ......................................................................................................... 7 1.1 Introduction ...........................................................................................7 1.2 Objective................................................................................................7 1.3 Scope .....................................................................................................7 1.4 Application ............................................................................................7 Contents 1.5 Document structure ...............................................................................7 1.6 References .............................................................................................8 1.6.1 Reference to MTS documents...........................................................8 1.6.2 Other normative references.............................................................9 1.7 Definitions and abbreviations...............................................................10 1.7.1 Definitions ..................................................................................10 1.7.2 Abbreviations ..............................................................................11 Sec.2 Management guidance ................................................................................ 13 2.1 Introduction .........................................................................................13 2.2 Dynamic positioning related documentation ........................................13 2.2.1 General ......................................................................................13 2.2.2 Recommended documentation .......................................................13 2.3 Dynamic positioning class ....................................................................14 2.4 Dynamic positioning failure modes and effects analysis.......................15 2.5 Dynamic positioning capability plots ....................................................16 2.6 Dynamic positioning footprint plots......................................................16 2.7 Position reference systems and sensors...............................................17 2.8 Recommended dynamic positioning control modes for dynamic positioning activities ............................................................................18 2.9 Trials and checklists .............................................................................18 2.10 Dynamic positioning operations manuals .............................................19 2.11 Activity operational planning................................................................20 2.12 Communications...................................................................................20 2.13 Dynamic positioning planned maintenance ..........................................21 2.14 Dynamic positioning incidents..............................................................22 2.15 Reporting and record keeping ..............................................................22 2.16 Competence .........................................................................................22 2.17 Manning ...............................................................................................23 Sec.3 Operational guidance modus....................................................................... 25 3.1 Introduction .........................................................................................25 3.2 Dynamic positioning operational documentation..................................25 3.2.1 General ......................................................................................25 3.2.2 Recommended documentation .......................................................25 3.3 Dynamic positioning class ....................................................................28 3.4 Dynamic positioning failure modes and effects analysis.......................29 3.5 Dynamic positioning capability plots ....................................................31 3.6 Dynamic positioning footprint plots......................................................32 3.7 Position reference systems and sensors...............................................33 Recommended practice DNVGL-RP-E307 – Edition July 2015 Page 4 DNV GL AS 3.8 Recommended dynamic positioning control modes for dynamic positioning activities ............................................................................39 3.9 Trials and checklists .............................................................................40 3.10 Dynamic positioning operations manuals .............................................41 3.11 Activity operational planning................................................................43 3.12 Communications...................................................................................46 3.13 Dynamic positioning planned maintenance ..........................................47 3.14 Dynamic positioning incidents..............................................................48 Contents 3.15 Reporting and record keeping ..............................................................49 3.16 Competence .........................................................................................49 3.17 Manning ...............................................................................................50 3.18 Intervention – role of the dynamic positioning operator and engineer.51 3.19 Dynamic positioning footprint plots - worked examples ......................54 3.20 Annual dynamic positioning trials test table blank – dynamic positioning MODU.................................................................................55 3.21 Example of safest mode of operation and well specific operating guidelines.............................................................................................56 Sec.4 Operations guidance project/construction vessels...................................... 64 4.1 Introduction .........................................................................................64 4.2 Dynamic positioning operational documentation..................................64 4.2.1 General ......................................................................................64 4.2.2 Recommended documentation ......................................................64 4.3 Dynamic positioning - class ..................................................................67 4.4 Dynamic positioning failure modes and effects analysis.......................68 4.5 Dynamic positioning capability plots ....................................................70 4.6 Dynamic positioning footprint plots......................................................71 4.7 Position reference systems and sensors...............................................72 4.8 Recommended dynamic positioning control modes for dynamic positioning activities ............................................................................77 4.9 Trials and checklists .............................................................................78 4.10 Dynamic positioning operations manuals .............................................81 4.11 Activity operational planning................................................................82 4.12 Communications...................................................................................85 4.13 Dynamic positioning planned maintenance ..........................................86 4.14 Dynamic positioning