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API Spec 19OH Openhole Isolation Equipment, First Edition
standard by American Petroleum Institute, 01/01/2018
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API SPECIFICATION 19OH FIRST EDITION, JANUARY 2018
EFFECTIVE DATE: JULY 2018
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API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to ensure 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 responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict.
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Copyright © 2018 American Petroleum Institute
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.
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Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the standard.
Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the standard.
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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Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years.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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This Specification has been developed by users/purchasers and suppliers/manufacturers of openhole isolation equipment intended for use in the petroleum and natural gas industry worldwide. This Specification is intended to give requirements and information to both parties in the selection, manufacture, testing, and use of openhole isolation equipment. Further, this Specification addresses supplier/manufacturer requirements that set the minimum requirements with which suppliers/manufacturers shall comply to claim conformity with this Specification.
This Specification has been structured to allow for grades of increased requirements both in quality control and design validation. These variations allow the user/purchaser to select the grade required for a specific application for openhole isolation equipment.
The quality grades provide the user/purchaser the choice of requirements to meet a specific preference or application. Additional quality requirements may be specified by the user/purchaser as supplemental requirements.
Standard design validation grades provide the user/purchaser the choice of requirements to meet a specific preference or application. Design validation grade V3 OH is the minimum grade and represents equipment where the validation method has been defined by the supplier/manufacturer. The complexity and severity of the validation testing typically increases as the grade number decreases.
Users of this Specification should be aware that requirements above those outlined in this Specification 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 may be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the supplier/ manufacturer should identify any variations from this Specification.
This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process. This Specification was initiated utilizing information provided by the Advanced Well Equipment Standards Group RP 3362.
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Openhole Isolation Equipment
This Specification covers requirements and guidelines for openhole isolation equipment and bridge plugs as defined herein. Openhole isolation equipment includes swellable packers, inflatable packers, expandable packers, and openhole packers that are designed for use in the petroleum and natural gas industries. This Specification provides requirements for design verification, design validation, manufacturing, quality, shipping, handling and storage, and related supporting topics.
Included within this Specification are four Annexes, of them, B and C are normative, and A and D are informative.
Requirements for the end connections to the well conduit are not included in this Specification. Also not covered are downhole anchoring devices (see API 11D1); cup style packers; and requirements for the application, installation, and use of openhole isolation equipment. Equipment and technology that are covered by other API specifications and standards are exempted from this specification, such as:
production packers,
liner hanger systems,
service tools,
test tool packers.
Repairs, remanufacturing, and redress are excluded from this Specification.
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 of the referenced document (including any amendments) applies.
API Spec 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock
API Specification 5CT, Specification for Casing and Tubing
API Spec Q1, Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry
ASNT RP SNT-TC-1A 1, Non-Destructive Testing
ASTM D412 2, Standard Test Methods for Vulcanized and Thermoplastic Elastomers—Tension ASTM D429, Standard Test Methods for Rubber Property—Adhesion to Rigid Substrates ASTM D638, Standard Test Method of Tensile Properties of Plastics
ASTM D1414, Standard Test Methods for Rubber O-Rings
American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, New York, 10036.
American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohoken, PA 19427-2959.
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2 API SPECIFICATION 19OH
ASTM D1415, Tentative Method of Testing for International Hardness of Vulcanized Natural and Synthetic Rubbers
ASTM D1708, Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM D2140, Standard Practice for Calculating Carbon-Type Composition of Insulating Oils of Petroleum Origin
ASTM D2240, Standard Test Method for Rubber Property—Durometer Hardness
ISO 37 3, Rubber, vulcanized or thermoplastic—Determination of tensile stress–strain properties
ISO 2859-1, Sampling procedures for inspection by attributes—Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3601-1, Fluid power systems—O-rings—Part 1: Inside diameters, cross-sections, tolerances and designation codes
ISO 3601-3, Fluid power systems—O-rings—Part 3: Quality acceptance criteria
ISO 9712, Non-destructive testing—Qualification and certification of NDT personnel
For the purposes of this document, the terms and definitions given in API Q1 and the following apply.
Product comprised of more than one component.
An elastomer family of materials with common property limits such as HNBR, FKM, EPDM.
A base elastomer mixed with additives to achieve physical properties that enhance performance.
Mechanical device used for blocking fluid (liquid or gas) communication within a conduit when installed (not installed in a design receptacle or conduit).
An individual part of an assembly.
Casing, tubing or liner, metallic, or nonmetallic.
Ratio of the material yield stress divided by the actual design stress in a given component.
NOTE Design margins account for a level of reduced performance capability to compensate for uncertainties in the loading (applied stress) and intrinsic variation in the mechanical properties such as yield strength, ultimate strength, endurance strength, modulus of elasticity that have distribution about their mean value.
3 International Organization for Standardization, 1, ch. de la Voie-Creuse, Case postale 56, CH-1211 Genevea 20, Switzerland.