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API SPEC 19CI Downhole Chemical Injection Devices and Related Equipment, First Edition
standard by American Petroleum Institute, 06/01/2019
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API SPECIFICATION 19CI FIRST EDITION, JUNE 2019
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Copyright © 2019 American Petroleum Institute
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Page
Scope 1
Normative References 1
Terms, Definitions, Abbreviations, and Acronyms 3
Terms and Definitions 3
Abbreviations and Acronyms 10
Functional Specification 11
General 11
Background 11
Functional Characteristics 12
Well Parameters 13
Operational Parameters 13
Fluid Cleanliness 14
Compatibility with Well Equipment 14
Design Validation Grades 14
Functional Testing Grades 15
Quality Levels 16
Additional Testing/Evaluations 16
Technical Specifications 17
General Requirements 17
Chemical Injection Device Types 17
Design Criteria 17
Materials 19
Sealing System Requirements 21
Bonding Non-metallic Materials to Substrates 22
Design Verification 22
Design Changes 23
Design Validation Requirements 23
Requirements for Annexes and Testing 28
Special Features Validation 30
Unconventional Design Validations 31
Retrievable Chemical Injection Designs 31
Additional Design Validation Testing 32
Scaling of Validated Designs 32
Functional Testing Requirements 32
Supplier/Manufacturer Requirements 33
General 33
Documentation and Data Control 33
Identification 35
Measuring and Testing Equipment 35
Quality Requirements 36
Materials Controls 37
Non-destructive Examination Requirements 39
Sampling Requirements 41
Traceability 42
Manufacturing Non-conformance 43
Page
Storage and Shipping Requirements 43
General 43
Draining, Cleaning, and/or Drying 43
Exterior Threaded Connections and External Seal Assemblies 43
Permanent Marking 43
Coatings for Transportation and Storage 43
Shipping of Pressurized Chemical Injection Devices/Products 44
Repair and Redress of Chemical Injection Devices/Products 44
Annex A (informative) API Monogram Program Use of the API Monogram by Licensees 45
Annex B (normative) Reverse Flow Prevention (RFP) Validation and Functional Testing 49
Annex C (normative) Back Pressure Retention (BPR) Validation and Functional Testing 64
Annex D (normative) Single-use Isolation Validation and Functional Testing Requirements 77
Annex E (normative) Secondary Chemical Injection Screen Validation and Functional Testing Requirements 83
Annex F (normative) Retrievable Chemical Injection Device/Product Testing 87
Annex G (normative) Combination of Two or More Chemical Injection Devices into a Single Product 91
Annex H (informative) Considerations for the Use of Chemical Injection Systems 96
Bibliography 105
Summary of Chemical Injection Device Types 12
Device Design Validation Grade Summary 15
Product Design Validation Grade Summary 15
Device Functional Testing Grade Summary 16
Product Functional Testing Grade Summary 16
Quality Levels Summary 16
Device Validation Hierarchy 24
Product Validation Hierarchy 24
Metallic Material De-Rating Factor Examples 26
Summary of Quality Requirements 36
Metallic Component Classification 37
Inspection Sample Size 42
Reverse Flow Prevention (RFP) Validation Testing Series Summary 50
Page
Reverse Flow Prevention (RFP) Functional Testing Summary 61
Back Pressure Retention (BPR) Validation Testing Summary 65
Completion Actions for V3, V2, and V1 Validation 67
Back Pressure Retention (BPR) Functional Testing Summary 73
Single-use Isolation (SUI) Validation Testing Summary 78
Single-use Isolation (SUI) Functional Testing Summary 81
Combined Product Validation Summary—Individually Validated Devices 92
Combined Product Validation Summary—Unvalidated Device(s) 93
Combined Products Functional Testing Summary 95
This specification has been developed by users/purchasers and suppliers/manufacturers of downhole chemical injection devices/products that are used in side-pocket mandrels and tubing retrievable mandrels/carriers in the worldwide petroleum and natural gas industry. This specification is intended to provide requirements and information to parties who are involved in the specification, selection, manufacture, testing and use of chemical injection devices. Further, this specification contains the minimum supplier/manufacturer requirements to claim conformity to this specification.
This specification has been structured to support a range of requirements in design verification, design validation, functional testing, and quality. These variations allow the user/purchaser to select the grades and levels for a specific application.
There are four design validation grades for chemical injection devices and four for products that provide the user/ purchaser with a range of technical requirements and ratings. This ensures that the devices/products supplied according to this specification meet the requirements and that the user/purchaser can compare these requirements with its preference or application and determine whether additional requirements are placed on the supplier/manufacturer.
It is important that users of this specification are aware that requirements in addition to those outlined herein may be needed for individual applications. This specification is not intended to inhibit a supplier/manufacturer from offering, or the user/purchaser from accepting, alternative equipment or engineering solutions. This can be particularly applicable where there is innovative or developing technology. Where an alternative is offered, it is the responsibility of the supplier/manufacturer to identify variations from this specification and provide details.
Two quality levels are provided that the user/purchaser may choose to meet specific preferences or applications. Additional quality requirements can be specified by the user/purchaser as supplemental requirements.
In addition to the requirements of this document, related requirements are included in the following:
API 19G1 provides requirements for side-pocket mandrels;
API 19G3 provides requirements for running, pulling, kick-over tools and latches used in conjunction with side- pocket mandrel chemical injection devices/products;
API 19G4 provides requirements for side-pocket mandrels and related equipment;
API 19AC provides requirements for mandrels or carriers that are used with chemical injection devices/products when installed in a well.
Downhole Chemical Injection Devices and Related Equipment
This specification provides requirements for chemical injection devices intended for use in the worldwide petroleum and natural gas industry. This includes requirements for specifying, selecting, design verification, validation testing, manufacturing, quality-control, testing, and preparation for shipping of chemical injection devices as defined herein. These requirements include in-line debris screen systems, single-use shearable/ frangible devices, and performance testing and calibration procedures.
The installation and retrieval of chemical Injection devices and systems is outside the scope of this document (see API 19G2 and API 19G3).
This document does not include requirements for mandrels, carriers, running, pulling, and kick-over tools, handling tools and latches, injection lines, fittings, control line connectors, clamps, chemicals and chemical delivery systems. Service, repair or redress of used chemical Injection devices is outside of the scope of this document.
Validation and functional testing within this specification is performed using water as the testing medium. Design validation in conformance with this specification may not provide assurance that a chemical injection device/ product will perform in a specific well, due to the variety and potential contamination of the injected chemicals.
Included in this specification are Annex B through Annex G (normative) and Annex A and Annex H (informative). If a product is supplied bearing the API Monogram and manufactured at a facility licensed by API, the provisions of Annex A apply.
The following referenced documents are referred to in the text in such a way that some or all the content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including amendments) applies.
API Specification 5B, Specification for Threading, Gauging and Thread Inspection of Casing, Tubing, and Line Pipe Threads
API Specification 7-2, Specification for Threading and Gauging of Rotary Shouldered Thread Connections, Second Edition
API Specification 19G1, Side-pocket Mandrels
API Specification 19G2, Flow-control Devices for Side Pocket Mandrels
API Specification 19G3, Running Tools, Pulling Tools, and Kick-over Tools and Latches for Side-Pocket Mandrels
API Recommended Practice 19G4, Practices for Side-pocket Mandrels and Related Equipment
API Q1, Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry
ASME 1 Boiler and Pressure Vessel Code (BPVC), Section V, Nondestructive Examination
1 American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017-2392, USA, www. asme.org.
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