1、BSI Standards Publication BS EN ISO 19901-1:2015 Petroleum and natural gas industries Specific r e q u i r e m e n t s f o r o f f s h o r e structures Part 1: Metocean design and operating considerationsBS EN ISO 19901-1:2015 BRITISH STANDARD National foreword This British Standard is the UK implem
2、entation of EN ISO 19901-1:2015. It supersedes BS EN ISO 19901-1:2005 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/525/12, Design of offshore structures. A list of organizations represented on this committee can be obtained on request to its secr
3、etary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 83482 0 ICS 75.180.10 Compliance with a British Standard c
4、annot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2015. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS
5、O 19901-1 November 2015 ICS 75.180.10 Supersedes EN ISO 19901-1:2005 English Version Petroleum and natural gas industries - Specific requirements for offshore structures - Part 1: Metocean design and operating considerations (ISO 19901-1:2015) Industries du ptrole et du gaz naturel - Exigences spcif
6、iques relatives aux structures en mer - Partie 1: Dispositions ocano-mtorologiques pour la conception et lexploitation (ISO 19901-1:2015) Erdl- und Erdgasindustrie - Erdl- und Erdgasindustrie - Spezielle Anforderungen fr Offshore-Anlagen - Teil 1: Grundstze fr die Auslegung und den Betrieb auf dem o
7、ffenen Meer (ISO 19901-1:2015) This European Standard was approved by CEN on 17 July 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date l
8、ists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation und
9、er the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former
10、Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
11、OPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 19901-1:2015 EBS EN ISO 19901-1:2015 EN ISO 19901-1:2015
12、 (E) 3 European Foreword This document (EN ISO 19901-1:2015) has been prepared by Technical Committee ISO/TC 67 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries“ in collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshor
13、e structures for petroleum, petrochemical and natural gas industries” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2016, and conflicting national
14、standards shall be withdrawn at the latest by May 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN IS
15、O 19901-1:2005. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedo
16、nia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 19901-1:2015 has been approved by CE
17、N as EN ISO 19901-1:2015 without any modification. BS EN ISO 19901-1:2015ISO 19901-1:2015(E)Foreword v Introduction vii 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 2 4 Symbols and abbreviated terms . 9 4.1 Symbols . 9 4.2 Abbreviated terms 12 5 Determining the relevant metocean pa
18、rameters 12 5.1 General 12 5.2 Expert development of metocean criteria 13 5.3 Selecting appropriate parameters for determining design actions and action effects 13 5.4 The metocean database 14 5.5 Storm types in a region .14 5.6 Directionality .14 5.7 Extrapolation to extreme and abnormal conditions
19、 .15 5.8 Metocean parameters for fatigue assessments 15 5.9 Metocean parameters for short-term activities.16 5.10 Metocean parameters for medium-term activities .17 6 Water depth, tides and storm surges .17 6.1 General 17 6.2 Tides 17 6.3 Storm surges 18 6.4 Extreme water level .18 7 Wind .19 7.1 Ge
20、neral 19 7.2 Wind actions and action effects .20 7.3 Wind profile and time-averaged wind speed.21 7.4 Wind spectra 21 8 Waves .21 8.1 General 21 8.2 Wave actions and action effects .22 8.3 Sea states Spectral waves 23 8.3.1 Wave spectrum .23 8.3.2 Directional spreading .23 8.3.3 Wave periods 23 8.3.
21、4 Wave kinematics Velocities and accelerations .23 8.4 Regular (periodic) waves 24 8.4.1 General.24 8.4.2 Wave period 24 8.4.3 Wave kinematics Velocities and accelerations .24 8.4.4 Intrinsic, apparent and encounter wave periods 24 8.5 Maximum height of an individual wave for long return periods 25
22、8.6 Linear wave models .25 8.7 Wave crest elevation .25 9 Currents 26 9.1 General 26 9.2 Current velocities .26 9.3 Current profile 27 9.4 Current profile stretching .27 9.5 Current blockage 27 ISO 2015 All rights reserved iii Contents PageBS EN ISO 19901-1:2015ISO 19901-1:2015(E)10 Other environmen
23、tal factors 27 10.1 Marine growth 27 10.2 Tsunamis .28 10.3 Seiches .28 10.4 Sea ice and icebergs .28 10.5 Snow and ice accretion .28 10.6 Miscellaneous 29 11 Collection of metocean data .29 11.1 General 29 11.2 Common requirements .30 11.2.1 General.30 11.2.2 Instrumentation 30 11.3 Meteorology 30
24、11.3.1 General.30 11.3.2 Weather observation and reporting for helicopter operations 30 11.3.3 Weather observation and reporting for weather forecasting services 31 11.3.4 Weather observation and reporting for climatological purposes 31 11.4 Oceanography .31 11.4.1 General.31 11.4.2 Measurements and
25、 observations 32 11.5 Data quality control .32 12 Information concerning the annexes .32 12.1 Information concerning Annex A .32 12.2 Information concerning the regional annexes 32 Annex A (informative) Additional information and guidance 33 Annex B (informative) Northwest Europe 82 Annex C (informa
26、tive) West coast of Africa 92 Annex D (informative) Offshore Canada 103 Annex E (informative) Sakhalin/Sea of Okhotsk 131 Annex F (informative) Caspian Sea 155 Annex G (informative) Southern East Asian Sea 173 Bibliography .195 iv ISO 2015 All rights reservedBS EN ISO 19901-1:2015ISO 19901-1:2015(E)
27、 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a
28、technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matter
29、s of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This docu
30、ment was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all s
31、uch patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and d
32、oes not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary info
33、rmation The committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 7, Offshore structures. This second edition cancels and replaces the first edition (ISO 19901-1:2005), which has bee
34、n technically revised. ISO 19901 consists of the following parts, under the general title Petroleum and natural gas industries Specific requirements for offshore structures: Part 1: Metocean design and operating considerations Part 2: Seismic design procedures and criteria Part 3: Topsides structure
35、 Part 4: Geotechnical and foundation design considerations Part 5: Weight control during engineering and construction Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units Part 8: Marine soil investigations The following parts are under preparation: Part 6: Marine
36、 operations Part 9: Structural integrity management ISO 19901 is one of a series of standards for offshore structures. The full series consists of the following International Standards: ISO 19900, Petroleum and natural gas industries General requirements for offshore structures ISO 2015 All rights r
37、eserved vBS EN ISO 19901-1:2015ISO 19901-1:2015(E) ISO 19901 (all parts), Petroleum and natural gas industries Specific requirements for offshore structures ISO 19902, Petroleum and natural gas industries Fixed steel offshore structures ISO 19903, Petroleum and natural gas industries Fixed concrete
38、offshore structures ISO 19904-1, Petroleum and natural gas industries Floating offshore structures Part 1: Monohulls, semi-submersibles and spars ISO 19905-1, Petroleum and natural gas industries Site-specific assessment of mobile offshore units Part 1: Jack-ups ISO/TR 19905-2, Petroleum and natural
39、 gas industries Site-specific assessment of mobile offshore units Part 2: Jack-ups commentary ISO 19905-3 1) , Petroleum and natural gas industries Site-specific assessment of mobile offshore units Part 3: Floating unit ISO 19906, Petroleum and natural gas industries Arctic offshore structures 1) In
40、 preparation.vi ISO 2015 All rights reservedBS EN ISO 19901-1:2015ISO 19901-1:2015(E) Introduction The series of International Standards applicable to types of offshore structure, ISO 19900 to ISO 19906, constitutes a common basis covering those aspects that address design requirements and assessmen
41、ts of all offshore structures used by the petroleum and natural gas industries worldwide. Through their application the intention is to achieve reliability levels appropriate for manned and unmanned offshore structures, whatever the type of structure and the nature or combination of the materials us
42、ed. It is important to recognize that structural integrity is an overall concept comprising models for describing actions, structural analyses, design rules, safety elements, workmanship, quality control procedures and national requirements, all of which are mutually dependent. The modification of o
43、ne aspect of design in isolation can disturb the balance of reliability inherent in the overall concept or structural system. The implications involved in modifications, therefore, need to be considered in relation to the overall reliability of all offshore structural systems. The series of Internat
44、ional Standards applicable to types of offshore structure is intended to provide a wide latitude in the choice of structural configurations, materials and techniques without hindering innovation. Sound engineering judgement is therefore necessary in the use of these International Standards. The over
45、all concept of structural integrity is described above. Some additional considerations apply for metocean design and operating conditions. The term “metocean” is short for “meteorological and oceanographic” and refers to the discipline concerned with the establishment of relevant environmental condi
46、tions for the design and operation of offshore structures. A major consideration in the design and operation of such a structure is the determination of actions on, and the behaviour of, the structure as a result of winds, waves and currents. Environmental conditions vary widely around the world. Fo
47、r the majority of offshore locations there are little numerical data from historic conditions; comprehensive data often only start being collected when there is a specific need, for example, when exploration for hydrocarbons is being considered. Despite the usually short duration for which data are
48、available, designers of offshore structures need estimates of extreme and abnormal environmental conditions (with an individual or joint probability of the order of 1 10 2 /year and 1 10 3to 1 10 4 /year, respectively). Even for areas like the Gulf of Mexico, offshore Indonesia and the North Sea, wh
49、ere there are up to 30 years of fairly reliable measurements available, the data are insufficient for rigorous statistical determination of appropriate extreme and abnormal environmental conditions. The determination of relevant design parameters has therefore to rely on the interpretation of the available data by experts, together with an assessment of any other information, such as prevailing weather systems, ocean wave creation and regional and local bathymetry, coupled wi
