DNVGL-RP-E307: Dynamic positioning systems - operation ...

1 RECOMMENDED PRACTICEDNV GL ASThe electronic pdf version of this document found through is the officially binding version. The documents are available free of charge in PDF July 2015 Dynamic positioning systems - operation guidance DNV GL AS July 2015 Any comments may be sent by e-mail to service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document. The use of thisdocument 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 ofthis GL recommended practices contain sound engineering practice and practice DNVGL-RP-E307 Edition July 2015 Page 3 DNV GL AS Changes currentCHANGES CURRENT GeneralThis document supersedes DNV RP-E307, January affected by the main changes in this edition is highlighted in red colour.

2 However, if the changes On 12 September 2013, DNV and GL merged to form DNV GL Group. On 25 November 2013 Det NorskeVeritas 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 itsname to DNV GL AS. For further information, see Any reference in this document to DetNorske Veritas AS , Det Norske Veritas , DNV , GL , Germanischer Lloyd SE , GL Group or any otherlegal entity name or trading name presently owned by the DNV GL Group shall therefore also be considereda reference to DNV GL AS .On 12 September 2013, DNV and GL merged to form DNV GL Group. On 25 November 2013 Det NorskeVeritas 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 itsname to DNV GL AS.

3 For further information, see Any reference in this document to DetNorske Veritas AS , Det Norske Veritas , DNV , GL , Germanischer Lloyd SE , GL Group or any otherlegal entity name or trading name presently owned by the DNV GL Group shall therefore also be considereda reference to DNV GL AS .involve a whole chapter, section or sub-section, normally only the title will be in red addition to the above stated main changes, editorial corrections may have been correctionsRecommended practice DNVGL-RP-E307 Edition July 2015 Page 4 DNV GL AS ContentsCONTENTSCHANGES CURRENT .. Introduction .. Objective .. Scope .. Application .. Document structure .. References .. Reference to MTS Other normative Definitions and Definitions .. Abbreviations .. guidance .. Introduction.

4 Dynamic positioning related documentation .. General .. Recommended documentation .. Dynamic positioning class .. Dynamic positioning failure modes and effects Dynamic positioning capability plots .. Dynamic positioning footprint Position reference systems and Recommended Dynamic positioning control modes for Dynamic positioning activities .. Trials and checklists .. Dynamic positioning operations manuals .. Activity operational Dynamic positioning planned maintenance .. Dynamic positioning Reporting and record keeping .. Competence .. Manning .. guidance modus .. Introduction .. Dynamic positioning operational General .. Recommended documentation .. Dynamic positioning class .. Dynamic positioning failure modes and effects Dynamic positioning capability plots.

5 Dynamic positioning footprint Position reference systems and practice DNVGL-RP-E307 Edition July 2015 Page 5 DNV GL AS Recommended Dynamic positioning control modes for Dynamic positioning activities .. Trials and checklists .. Dynamic positioning operations manuals .. Activity operational Dynamic positioning planned maintenance .. Dynamic positioning Reporting and record keeping .. Competence .. Manning .. Intervention role of the Dynamic positioning operator and engineer . Dynamic positioning footprint plots - worked examples .. Annual Dynamic positioning trials test table blank Dynamic positioning Example of safest mode of operation and well specific operating guidance project/construction Introduction .. Dynamic positioning operational General .. Recommended documentation.

6 Dynamic positioning - class .. Dynamic positioning failure modes and effects Dynamic positioning capability plots .. Dynamic positioning footprint Position reference systems and Recommended Dynamic positioning control modes for Dynamic positioning activities .. Trials and checklists .. Dynamic positioning operations manuals .. Activity operational Dynamic positioning planned maintenance .. Dynamic positioning Reporting and record keeping .. Competence .. Manning .. Intervention role of the Dynamic positioning operator and engineer . Dynamic positioning footprint plots - worked examples .. Annual Dynamic positioning trials test table blank Dynamic positioning project / construction vessel .. Example of safest mode of operation and activity specific operating guidance logistic Introduction.

7 Dynamic positioning operational practice DNVGL-RP-E307 Edition July 2015 Page 6 DNV GL AS General .. Recommended documentation .. Dynamic positioning class .. Dynamic positioning failure modes and effects Dynamic positioning capability plots .. Dynamic positioning footprint Position reference systems and Recommended Dynamic positioning control modes for Dynamic positioning activities .. Trials and checklists .. Dynamic positioning operations manuals .. Activity operational Dynamic positioning planned maintenance .. Dynamic positioning Reporting and record keeping .. Competence .. Manning .. Intervention role of the Dynamic positioning operator and engineer .. Dynamic positioning footprint plots worked examples .. Annual Dynamic positioning trials test table blank Dynamic positioning logistics Example of safest mode of operation and activity specific operating practice DNVGL-RP-E307 Edition July 2015 Page 7 DNV GL AS SECTION 1 IntroductionThis recommended practice (RP) is based on the Dynamic positioning (DP) operation guidance of the Marine Technology Society's DP Technical Committee.

8 ObjectiveThe objective of this RP is to provide a guidance for the safe and effective conduct and management of DP operations, including the following: manage, mitigate and reduce the exposure to, and potential of, DP related incidents identify themes that need to be managed provide a list of reference documents that address themes, whilst acknowledging that existing referenced documents do not identify all elements adequately when viewed in isolation. ScopeThe themes that have been identified and addressed in this document are: DP class FMEA/ FMECA DP capability position reference systems and sensors required modes trials and checklists operation manuals activity and operational planning communications DP planned maintenance DP incidents reporting and record keeping competency manning operator intervention DPOs and Application This document is not meant to replace any rules, regulations or owners operational manuals.

9 It is a compilation of existing guidance and practices gleaned from various sources in industry. It refers to standards and guidance used within the industry and draws attention to them. It also incorporates additional information gleaned from experience and documents/ standards not in the public is not intended to be an all encompassing document covering all aspects of DP operations. It focuses on a number of important DP operational themes, which, if effectively managed, will result in safer DP operations and a reduction in exposure to DP related guidance provided in this document is not directed at any particular category of DP operation or DP vessel. It is intended to apply to any DP operation undertaken by any type and class of DP vessel operating in support of offshore oil and gas activities, Examples include mobile offshore units (MOUs), ships, construction and logistics vessels where Dynamic positioning is used for, or aiding, station Document structureThis document consists of five sections of which the first contains general information and the others the relevant guidance on Dynamic positioning .

10 This guidance is started with a focus on the general management Recommended practice DNVGL-RP-E307 Edition July 2015 Page 8 DNV GL AS of DP operations in This section is followed by specific operational guidance of DP operations of different vessel types as follows: DP MODUs DP Project/ construction vessels and barges DP Logistics :Examples for the vessels covered in are pipelay, heavy lift, dive support, ROV and accommodation support vessels. The logistic vessels of are typically OSVs or crew boats). When logistics vessels are used as platforms to carry out project/ construction activities they should follow the guidelines for project/ construction vessel/ To fully appreciate the context of to without the need to refer back and forth, the specific operational guidance of these sections is completed with the general information of For distinction, the general information is printed in regular text, and the specific operational guidance is in italics and/or grouped under Guidance Reference to MTS documentsAs stated in the introduction is this recommended practice based on MTS DP Technical Committee s DP operation guidance.