Subsea Equipment Qualification— Standardized Process for Documentation

API RECOMMENDED PRACTICE 17Q FIRST EDITION, JUNE 2010

Subsea Equipment Qualification— Standardized Process for Documentation

Upstream Segment

API RECOMMENDED PRACTICE 17Q FIRST EDITION, JUNE 2010

Special Notes

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Users of this recommended practice should not rely exclusively on the information contained in this document. Sound business, scientific, engineering, and safety judgment should be used in employing the information contained herein.

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Work sites and equipment operations may differ. Users are solely responsible for assessing their specific equipment and premises in determining the appropriateness of applying the Recommended Practice. At all times, users should employ sound business, scientific, engineering, and safety judgment when using this Recommended Practice.

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Copyright © 2010 American Petroleum Institute

Foreword

Standards referenced herein may be replaced by other international or national standards that can be shown to meet or exceed the requirements of the referenced standard.

This American National Standard is under the jurisdiction of the API Sub-committee on Subsea Production Systems.

Nothing 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 contained in the publication be construed as insuring anyone against liability for infringement of letters patent.

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 and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any part of the material published 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Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years.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 Department, 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, 1220 L Street, NW, Washington, DC 20005, standards@api.org.

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Contents

Page

1. Scope 1

2. Normative References 1

3. Terms, Definitions, Acronyms, and Abbreviations 1

   1. Terms and Definitions 1

   2. Acronyms and Abbreviations. 4

4. Application 4

   1. General 4

   2. Component Classification 5

   3. Failure Mode Assessment 5

   4. Product Qualification Sheet 5

5. General Sections of Qualification Documents 5

   1. Information Structure of Failure Mode Assessments 5

   2. Information Structure of Product Qualification Sheets 6

6. Requirements 8

   1. How to Use the Failure Mode Assessment Templates 8

   2. How to Use the Product Qualification Sheets 9

Annex A (informative) Subsea Component and Category Index 11

Annex B (informative) FMA Template 13

Annex C (informative) PQS Templates 14

Non Component Specific Template 15

Subsea Ball Valve 16

Subsea Gate Valve 17

Needle Valve 18

Check Valve 19

Subsea Diverter Valve 20

Choke 21

Tree 22

Collet Connector 23

Clamp Connector 24

Pressure Cap 25

Flooding Cap 26

Hydraulic Coupler 27

Hydraulic Flying Leads (HFL) 28

Subsea Control Module (SCM) 29

SCM Directional Control Valve – HP 30

SCM Directional Control Valve – LP Choke 31

SCM Directional Control Valve – LP 32

Shuttle Valve 33

SCM Selector Valve – HP 34

SCM Selector Valve – LP 35

SCM Solenoid Valve 36

SCM Dump Valve 37

Accumulator 38

Chemical Injection Metering Valve 39

Hydraulic Fluid 40

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Contents

Page

Electric Flying Lead (EFL) 41

Electrical Wet Mate Connector 42

Flow Meter 43

Process Transmitter 44

Sand Detector 45

Pig Detector 46

SCM – Subsea Electronics Module (SEM) 47

SCM – Valve Electronics Module (VEM) 48

Anti-Corrosion Coating 49

Wet Thermal Insulation 50

Sacrificial Anode 51

Installation and Workover Control System (IWOCS) Assembly 52

IWOCS Emergency Quick Disconnect (EQD) Assembly 53

IWOCS Umbilical and Surface Jumper(s) 54

Wellhead Annulus Seal Assembly (Packoffs) 55

Wellhead Casing Hanger 56

HP Wellhead 57

LP Wellhead 58

Wear Bushings/Bore Protector 59

Wellhead Ring Gasket 60

Lockdown Bushing 61

Bibliography 62

Figure

1 Application of FMA and PQS Documents 10

Table

A.1 Subsea Component and Category Index 11

vi

Introduction

This recommended practice stated herein applies specifically to the qualification of subsea components and is based on established industry standards or supplemental practices as discussed below. It can also be adapted by others in the industry to aid in standardizing and streamlining their qualification processes.

The component categories presented in this recommended practice are based on those listed in API Recommended Practice 17A. These component categories allow for component-specific forms, such as failure mode assessment (FMA) and product qualification sheet (PQS), which are described in this recommended practice to be used as a means of identifying any qualification gaps and documenting the qualification limits of the project subsea components, respectively.

The FMA approach is based on a simplified version of a Failure Mode Effects and Criticality Analysis, which is often used as a design tool within the industry. This tool applies specifically to components and equipment for offshore developments. The objective through use of the FMA is to systematically ensure the technology functions reliably within specified limits. The FMA is used to identify component-specific failure mechanisms and critical design features and to aid managing qualification gaps.

The purpose of this recommended practice is to provide a systematic, structured framework for subsea equipment qualification. General requirements, recommendations, and overall guidance provided in this recommended practice may assist various users in areas requiring consideration during qualification of subsea components and production systems for the petroleum and natural gas industry.

This recommended practice defines functional requirements to suit component qualification specifically for subsea developments and operations. This recommended practice is intended to perform the following functions:

• to facilitate and complement the decision-making process rather than to replace individual engineering judgment;

  
  

• to provide qualification guidance where industry requirements may not exist;

  
  

• to provide a mechanism to document and communicate component technical requirements and control potential component changes with equipment suppliers and their supply chain.

vii

Subsea Equipment Qualification—Standardized Process for Documentation

1. Scope

   This recommended practice (RP) provides guidance on relevant qualification methods that may be applied to facilitate subsea project execution. Qualification of subsea equipment is based on a breakdown of individual subsea components and categorization of those individual components based on classes of equipment and component functionality. A comprehensive component-level breakdown can cater to wide flexibility for field-specific configurations. The qualification process presented in this recommended practice is governed by component-level evaluation and referencing using two separate forms of documentation: failure mode assessments (FMAs) and product qualification sheets (PQSs). Detailed documentation resources related to the proactive qualification methodology presented in this recommended practice are provided in the annexes. These resources include an index of components and individual PQS documents. Documents relating to manufacturing inspection and Factory Acceptance Testing are outside the scope of this document.

   
   

2. Normative References

   The following reference documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

   
   

   API Recommended Practice 17A, Recommended Practice for Design and Production of Subsea Production Systems

   
   

   API Recommended Practice 17N, Recommended Practice for Subsea Production System Reliability and Technical Risk Management

   
   

3. Terms, Definitions, Acronyms, and Abbreviations

For the purposes of this RP, the following terms, definitions, acronyms, and abbreviations apply.

3.1 Terms and Definitions

3.1.1

component

Any self-contained part of a larger entity.

3.1.2

component description

Brief narrative or explanation of the self-contained part of a larger entity [see component (3.1.1)].

3.1.3

component identifier

Part number or other discreet type of identification allocated by the supplier.

3.1.4

customer

The recipient of a product or service provided by a supplier.

3.1.5

dimensions

The overall physical component or assembly envelope dimensions (length x width x height).

1