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1、Specification for Subsea Wellhead and Tree EquipmentAPI SPECIFICATION 17D THIRD EDITION, XXXX 2021Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed.Neither API no
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4、desiring to do so. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibili
5、ty for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict.API publications are published to facilitate the broad availability of proven, sound engineering and operating practices. These publications are not inten
6、ded to obviate the need for applying sound engineering judgment regarding when and where these publications should be used. The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials
7、in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard. API does not represent, warrant, or guarantee that such products do in fact conform to the applicable API standard.All rights reserved. No part o
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9、 DC 20001.copyright 2020 American Petroleum InstituteForewordNothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything conta
10、ined in the publication be construed as insuring anyone against liability for infringement of letters patent.The verbal forms used to express the provisions in this document are as follows.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the standard.Should:
11、 As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the standard.May: As used in a standard, “may” denotes a course of action permissible within the limits of a standard. Can: As used in a standard, “can” denotes a statement of p
12、ossibility or capability.This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments an
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14、hed herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years may be added to this review cycle. Status of the publication can be ascertained from the API Standards De
15、partment, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 200 Massachusetts Ave, Washington, DC 20001, standardsapi.or
16、g.ContentsPage1 Scope42 Normative References53 Terms, Definitions, Abbreviated Terms, and Symbols63.1 Terms and Definitions63.2 Abbreviated Terms and Symbols134 Application, Service Conditions, and Production Specification Levels154.1 Application154.2 Service Conditions184.3 Product Specification Le
17、vels185 Common System Requirements195.1 Design and Performance Requirements195.2 Materials305.3 Welding315.4 Quality Control315.5 Equipment Marking355.6 Storing and Shipping366 General Design Requirements for Subsea Tree Systems376.1 General376.2 Tubing Head and Tree Valving386.3 Thermally Induced P
18、ressure Changes466.4 Testing of Subsea Tree Assemblies466.5 Marking476.6 Storing and Shipping477 Specific RequirementsSubsea Tree-Related Equipment and Subassemblies517.1 Flanged End and Outlet Connections517.2 API Clamp Hub-type Connections747.3 Threaded Connections747.4 Other End Connectors747.5 S
19、tuds, Nuts and Bolting747.6 Crosses, Tees, and Elbows757.7 Completion Guidebase757.8 Tree and Tubing Head Connectors767.9 Tree stab/seal Subs for Vertical Tree797.10 Valves, Valve Blocks and Actuators/Operators807.11 Re-entry Interface927.12 Subsea Tree Cap937.13 Tree Cap Running Tool967.14 Tree and
20、 Tubing Head Guide Frames987.15 Tree Running Tool1017.16 Tree, Tubing Head, and Completion Guide Base Piping1047.17 Flowline Connections1057.18 Ancillary Equipment Running Tools1087.19 Tree-mounted Hydraulic/electric/optical Control Interfaces1097.20 Subsea Chokes and Actuators/operators1137.21 Misc
21、ellaneous Equipment1248 Specific RequirementsSubsea Wellhead1258.1 General1258.2 Temporary Guidebase1268.3 Permanent Guidebase1278.4 Conductor (low pressure) Housing1328.5 Wellhead (high-pressure) Housing1348.6 Casing Hangers1378.7 Annulus Seal Assemblies1408.8 Casing Hanger Lockdown Bushing1418.9 B
22、ore Protectors and Wear Bushings1428.10 Corrosion Cap1438.11 Running, Retrieving and Testing Tools1438.12 Over-Trawlable Protection Structure1438.13 Wellhead Inclination and Orientation1438.14 Submudline Casing Hanger and Submudline Annulus Seal Assemblies1439 Specific RequirementsSubsea Tubing Hang
23、er System1449.1 Design1449.2 Materials1479.3 Testing14710 Specific RequirementsMudline Suspension Equipment14810.1 General14810.2 Mudline Suspension-landing/elevation Ring15110.3 Casing Hangers15210.4 Casing Hanger Running Tools and Tieback Adapters15310.5 Abandonment Caps15310.6 Mudline Conversion
24、Equipment for Subsea Completions15410.7 Tubing Hanger SystemMudline Conversion Equipment for Subsea Completions15411 Specific RequirementsDrill-through Mudline Suspension Equipment15511.1 General15511.2 External Drill-through Casing Hangers (Outside of the drill-through Casing Hanger Housing)15511.3
25、 Drill-through Casing Hanger Housing15511.4 Internal Drill-through Mudline Casing Hangers15711.5 Internal Drill-through Annulus Seal Assemblies15811.6 Internal Drill-through Bore Protectors and Wear Bushings15811.7 Tubing Hanger SystemDrill-through Mudline Equipment for Subsea Completions159. 160. 1
26、62B.1 General162B.2 Typical Wellhead and Tree Configurations162B.3 Product Specification Levels162B.4 Material Class163B.5 Data Sheets164. 181C.1 Scope181C.2 Selection of Steel Forging Classes (SFC)181. 183D.1 Scope183D.2 Functional Specifications184D.3 Load Descriptions185D.4 Risk Analysis185D.5 De
27、sign Verification185D.6 Materials Selection, Characterization, and Qualification186D.7 Design Validation188D.8 Quality Assurance and Product Specification Level189. 191E.1 General191E.2 Calculation of Pressure Ratings for Mudline Suspension Equipment191. 198F.1 Scope198F.2 Guidelines for Assembly202
28、. 207G.1 General207G.2 Design208G.3 Design Calculations and Loading Criteria213G.4 Factory Testing of Equipment Lift Points and Primary Load Path Members218G.5 Maintenance219G.6 Marking Requirements219. 220H.1 General220H.2 Design220H.3 Materials221H.4 Testing221. 222I.1 General222I.2 Purpose222I.3
29、Surface Preparation222I.4 Priming223I.5 Coating Systems223I.6 Touch-up of Coating System223I.7 Inspection224. 225J.1 Scope225J.2 General Requirements225J.3 Validation of Actuated Valves225J.4 Validation of Hydraulic Actuators226J.5 Validation of Valves with Manual Operator (ROV/Diver Operated)227J.6
30、 Other Valves228J.7 Documentation228. 229K.1 General229K.2 Level 1 Screening Tests229K.3 Level 2 Screening Tests231K.4 Level 3 Screening Tests232. 234. 238. 240. 242. 245Specification for Subsea Wellhead and Tree Equipment1 ScopeThis document provides specifications for subsea wellheads, mudline wel
31、lheads, drill-through mudline wellheads and both vertical and horizontal subsea trees. It specifies the associated tooling necessary tohandle, test and install the equipment. It also specifies the areas of design, material, welding, quality control (including factory acceptance testing), marking, st
32、oring and shipping for individual equipment, sub-assemblies, and subsea tree assemblies.The user/purchaser is responsible for ensuring subsea equipment meets any additional requirements of governmental regulations for the country in which it is installed. This is outside the scope of this specificat
33、ion.This specification is not applicable to the rework and repair of used equipment. In-situ testing is beyond the scope of this specification.SIT is beyond the scope of this specification.2 Normative ReferencesThe following referenced documents are indispensable for the application of this document
34、. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies, except that new editions may be used on issue and shall become mandatory upon the effective date specified by the publisher or 6 months fr
35、om the date of the revision (where no effective date is specified).API Specification 5B, Specification for Threading, Gauging, and Thread Inspection of Casing, Tubing, and Line Pipe Threads (US Customary Units)API Specification 5DP, Drill PipeAPI Specification 6A, Specification for Wellhead and Tree
36、 Equipment, 21st EditionAPI Specification 6AV1, Specification for Validation of Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore ServiceAPI Specification 16A, Specification for Drill-Through EquipmentAPI Recommended Practice 17A, Design and Operation of Subsea Production Syst
37、emsGeneral Requirements and RecommendationsAPI Standard 17F, Standard for Subsea Production Control SystemsAPI Standard 17G, Recommended Practice for Completion/Workover RiserAPI Recommended Practice 17H, Remotely Operated Tools and Interfaces on Subsea Production SystemsAPI Recommended Practice 17R
38、, Recommended Practice for Flowline Connectors and JumpersAPI TR 17TR7, Verification and Validation of Subsea ConnectorsAPI TR 17TR8, High-pressure High-temperature Design GuidelinesAPI Specification 20E, Alloy and Carbon Steel Bolting for use in the Petroleum and Natural Gas Industries API Specific
39、ation 20F, Corrosion-resistant Bolting for use in the Petroleum and Natural Gas Industries ASME B16.11 1, Forged Fittings, Socket-Welding and Threaded1 American Society of Mechanical Engineers, Two Park Avenue, New York, New York 10016, www.asme.org.ASME B31.3, Process PipingASME Boiler and Pressure Vessel Code (BPVC), Section VIII: Pressure Vessels; Division 2: Alternative RulesASME Boiler and Pressure Vessel Code (BPVC), Section VIII: Pressure Vessels; Division 3: Alternative