DIN EN 1918-2-2016 Gas infrastructure - Underground gas storage - Part 2 Functional recommendations for storage in oil and gas fields German version EN 1918-2 2016《供气系统 气体的地下存储 第2部.pdf

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1、November 2016 English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 75.200This standard has been in

2、cluded in the body of DVGW Technical Rules.!%uW“2588252www.din.deDIN EN 1918-2Gas infrastructure Underground gas storage Part 2: Functional recommendations for storage in oil and gas fields;English version EN 19182:2016,English translation of DIN EN 1918-2:2016-11Gasinfrastruktur Untertagespeicherun

3、g von Gas Teil 2: Funktionale Empfehlungen fr die Speicherung in l und Gasfeldern;Englische Fassung EN 19182:2016,Englische bersetzung von DIN EN 1918-2:2016-11Infrastructures gazires Stockage souterrain de gaz Partie 2: Recommandations fonctionnelles pour le stockage en gisements de ptrole et de ga

4、z;Version anglaise EN 19182:2016,Traduction anglaise de DIN EN 1918-2:2016-11SupersedesDIN EN 19182:199807www.beuth.deDocument comprises 32 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN 1918-2:2016-11 2 A comma i

5、s used as the decimal marker. National foreword This document (EN 1918-2:2016) has been prepared by Technical Committee CEN/TC 234 “Gas infrastructure” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Gastechnik (DIN Standards Committee Gas

6、 Technology), Working Committee NA 032-02-07 AA Untertagegasspeicher. This standard constitutes Part 2 of the series DIN EN 1918 Gas infrastructure Underground gas storage, which comprises the following five parts: Part 1: Functional recommendations for storage in aquifers Part 2: Functional recomme

7、ndations for storage in oil and gas fields Part 3: Functional recommendations for storage in solution-mined salt caverns Part 4: Functional recommendations for storage in rock caverns Part 5: Functional recommendations for surface facilities Part 2 of the series covers the functional requirements fo

8、r design, construction, testing, commissioning, operation, maintenance and abandonment of underground gas storage (UGS) facilities in oil and gas fields up to and including the wellhead. It is intended to include this standard in the body of technical rules and standards for gas issued by the DVGW D

9、eutscher Verein des Gas- und Wasserfaches e.V. (German Technical and Scientific Association for Gas and Water). Amendments This standard differs from DIN EN 1918-2:1998-07 as follows: a) Clause 2 “Normative references has been added; b) further terms and definitions have been included; c) activities

10、 and reviews related to safety have been included in Subclause 5.1; d) further aspects to be taken into account in the design of wells have been included in Subclause 5.4.1; e) Subclause 8.5 “HSE” has been added; f) Clause 9 “Abandonment” has been added. Previous editions DIN EN 1918-2: 1998-07 EURO

11、PEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1918-2 March 2016 ICS 75.200 Supersedes EN 1918-2:1998English Version Gas infrastructure - Underground gas storage - Part 2: Functional recommendations for storage in oil and gas fields Infrastructures gazires - Stockage souterrain de gaz - Partie 2:

12、Recommandations fonctionnelles pour le stockage en gisements de ptrole et de gaz Gasinfrastruktur - Untertagespeicherung von Gas -Teil 2: Funktionale Empfehlungen frdie Speicherung inl- und Gasfeldern This European Standard was approved by CEN on 10 January 2016. CEN members are bound to comply with

13、 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 lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Manage

14、ment 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 under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same stat

15、us as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta

16、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN

17、All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1918-2:2016 E2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 3.1 Terms and definitions common to parts 1 to 4 of EN 1918 5 3.2 Terms a

18、nd definitions not common to parts 1 to 4 of EN 1918 9 4 Requirements for underground gas storage 10 4.1 General . 10 4.2 Underground gas storage 11 4.3 Long-term containment of stored gas . 14 4.4 Environmental conservation . 15 4.5 Safety 15 4.6 Monitoring 15 5 Design . 15 5.1 Design principles 15

19、 5.2 Field description and storage behaviour 16 5.3 Determination of the maximum operating pressure 17 5.4 Wells . 18 5.5 Monitoring systems . 22 5.6 Neighbouring subsurface activities . 23 6 Construction . 23 6.1 General . 23 6.2 Wells . 23 6.3 Completions . 23 6.4 Wellheads 24 7 Testing and commis

20、sioning 24 8 Operation, monitoring and maintenance 24 8.1 Operating principles . 24 8.2 Monitoring 24 8.3 Injection and withdrawal operations . 25 8.4 Maintenance of wells 25 8.5 HSE . 25 9 Abandonment 26 9.1 General . 26 9.2 Withdrawal of the gas . 27 9.3 Plugging and abandonment of wells . 27 9.4

21、Surface facilities . 27 9.5 Monitoring 27 Annex A (informative) Non-exhaustive list of relevant standards 28 Annex B (informative) Significant technical changes between this European Standard and the previous version EN 1918-2:1998 . 30 EN 1918-2:2016 (E)DIN EN 1918-2:2016-11 3 European foreword Thi

22、s document (EN 1918-2:2016) has been prepared by Technical Committee CEN/TC 234 “Gas infrastructure”, the secretariat of which is held by DIN. 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 Septe

23、mber 2016 and conflicting national standards shall be withdrawn at the latest by September 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 pate

24、nt rights. This document supersedes EN 1918-2:1998. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. For a list of significant technical changes between this European Standard and EN 1918-2:1998, see Annex B. This docume

25、nt is Part 2 of a European Standard on “Gas infrastructure - Underground gas storage” which includes the five following parts: Part 1: Functional recommendations for storage in aquifers; Part 2: Functional recommendations for storage in oil and gas fields; Part 3: Functional recommendations for stor

26、age in solution-mined salt caverns; Part 4: Functional recommendations for storage in rock caverns; Part 5: Functional recommendations for surface facilities. Directive 2009/73/EC concerning common rules for the internal market in natural gas and the related Regulation (EC) No 715/2009 on conditions

27、 for access to the natural gas transmission networks also aim at technical safety including technical reliability of the European gas system. These aspects are also in the scope of CEN/TC 234 standardization. In this respect CEN/TC 234 evaluated the indicated EU legislation and amended this technica

28、l standard accordingly, where required and appropriate. 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, Fin

29、land, Former 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 the United Kingdom. EN 1918-2:2016 (E)DIN EN 1918-2

30、:2016-11 4 1 Scope This European Standard covers the functional recommendations for design, construction, testing, commissioning, operation, maintenance and abandonment of underground gas storage (UGS) facilities in oil and gas fields up to and including the wellhead. It specifies practices which ar

31、e safe and environmentally acceptable. For necessary surface facilities for underground gas storage, EN 1918-5 applies. In this context “gas“ is any hydrocarbon fuel: which is in a gaseous state at a temperature of 15 C and under a pressure of 0,1 MPa (this includes natural gas, compressed natural g

32、as (CNG) and liquefied petroleum gas (LPG). The stored product is also named fluid); which meets specific quality requirements in order to maintain underground storage integrity, performance, environmental compatibility and fulfils contractual requirements. This European Standard specifies common ba

33、sic principles for underground gas storage facilities. Users of this European Standard should be aware that more detailed standards and/or codes of practice exist. A non-exhaustive list of relevant standards can be found in Annex A. This European Standard is intended to be applied in association wit

34、h these national standards and/or codes of practice and does not replace them. In the event of conflicts in terms of more restrictive requirements in the national legislation/regulation with the requirements of this European Standard, the national legislation/regulation takes precedence as illustrat

35、ed in CEN/TR 13737 (all parts). NOTE CEN/TR 13737 (all parts) contains: clarification of relevant legislation/regulations applicable in a country; if appropriate, more restrictive national requirements; national contact point for the latest information. This European Standard is not intended to be a

36、pplied retrospectively to existing facilities. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition

37、of the referenced document (including any amendments) applies. EN 1918-5, Gas infrastructure - Underground gas storage - Part 5: Functional recommendations for surface facilities EN 1918-2:2016 (E)DIN EN 1918-2:2016-11 5 3 Terms and definitions 3.1 Terms and definitions common to parts 1 to 4 of EN

38、1918 For the purposes of this document, the following terms and definitions apply. They are common to parts 1 to 4 of EN 1918. 3.1.1 abandoned well well permanently out of operation and permanently plugged including removed surface facilities 3.1.2 annulus space between two strings of pipes or betwe

39、en the casing and the borehole 3.1.3 aquifer reservoir, group of reservoirs or a part thereof that is fully water-bearing and displaying differing permeability/porosity 3.1.4 auxiliary well well completed for other purposes than gas injection/withdrawal, e.g. water disposal 3.1.5 casing pipe or set

40、of pipes that are screwed or welded together to form a string, which is placed in the borehole for the purpose of supporting the borehole and to act as a barrier preventing subsurface migration of fluids when the annulus between it and the borehole has been cemented and to connect the storage reserv

41、oir respectively cavern to surface 3.1.6 casing shoe bottom end of a casing 3.1.7 cementing operation whereby usually a cement slurry is pumped and circulated down a cementation string within the casing and then upwards into the annulus between the casing and the open or cased hole 3.1.8 completion

42、technical equipment inside the last cemented casing of a well 3.1.9 containment capability of the storage reservoir or cavern and the storage wells to resist leakage or migration of the fluids contained therein Note 1 to entry: This is also known as the integrity of a storage facility. EN 1918-2:201

43、6 (E)DIN EN 1918-2:2016-11 6 3.1.10 core sample sample of rock taken during coring operation in order e.g. to determine various parameters by laboratory testing and/or for a geological description 3.1.11 cushion gas volume gas volume required in a storage for reservoir management purpose and to main

44、tain an adequate minimum storage pressure for meeting working gas volume delivery with a required withdrawal profile and in addition in caverns also for stability reasons Note 1 to entry: The cushion gas volume of storages in oil and gas fields may consist of recoverable and non-recoverable in-situ

45、gas volumes and/or injected gas volumes. 3.1.12 drilling all technical activities connected with the construction of a well 3.1.13 exploration all technical activities connected with the investigation of potential storage locations for the assessment of storage feasibility and derivation of design p

46、arameters 3.1.14 formation body of rock mass characterized by a degree of homogeneous lithology which forms an identifiable geologic unit 3.1.15 gas injection gas delivery from gas transport system into the reservoir/cavern through surface facilities and wells 3.1.16 gas inventory total of working a

47、nd cushion gas volumes contained in UGS 3.1.17 gas withdrawal gas delivery from the reservoir or cavern through wells and surface facilities to a gas transport system 3.1.18 geological modelling generating the image of a structure from the information gathered 3.1.19 indicator horizon horizon overly

48、ing the caprock in the storage area and used for monitoring 3.1.20 landing nipple device in a tubing string with an internal profile to provide for latching and sealing various types of plugs or valves EN 1918-2:2016 (E)DIN EN 1918-2:2016-11 7 3.1.21 liner casing installed within last cemented casin

49、g in the lowermost section of the well without extension to surface 3.1.22 lithology characteristics of rocks based on description of colour, rock fabrics, mineral composition, grain characteristics, and crystallization 3.1.23 logging measurement of physical parameters versus depth in a well 3.1.24 master valve valve at the wellhead designed to close off the well for operational reasons and in case of emergency or maintenance 3.1.25 maximum operati