API Spec 19LH-2019 (2021) PDF

Full title and description

St API Spec 19LH-2019 (2021) — API SPEC 19LH: Liner Hanger Equipment. First edition June 2019 with Addendum 1 (May 2021). The specification sets minimum requirements for conventional and expandable liner systems and associated components used in oil and natural gas wells, covering functional and technical specifications, design verification and validation, materials, quality control, documentation, repair, shipment and storage.

Abstract

This standard provides comprehensive technical requirements for liner hanger equipment (including liner hangers, liner packers, liner hanger packers, tie-back/polished-bore receptacles, seal assemblies, setting adaptors/sleeves, and running/setting tools) intended for use inside a conduit in oil and gas wells. Installation and field maintenance activities are explicitly outside its scope; the document also lists specific product types and assemblies that are excluded. The edition is the first (2019) with an addendum issued in 2021.

General information

• Status: Current (first edition 2019 with Addendum 1, 2021).
• Publication date: First edition published 1 June 2019; Addendum 1 published 1 May 2021.
• Publisher: American Petroleum Institute (API).
• ICS / categories: ICS 75 — Petroleum and related technologies; more specifically under equipment for petroleum and natural gas industries (ICS 75.180).
• Edition / version: 1st edition (June 2019), includes Addendum 1 (May 2021).
• Number of pages: 94 pages (specification) plus 4-page addendum.

Scope

Applies to conventional and expandable liner systems used within a conduit and specifies requirements for their design, verification/validation, materials, quality control, documentation and data control, repair, shipment and storage. The standard excludes installation and field maintenance and several item classes such as casing crossover subs, expandable tubulars and connections, end connections to the liner, cementing aids, liner wiper plugs and drill pipe darts, landing collars, float equipment, wellhead/casing hanger, sub-mudline suspension equipment, and cementing heads.

Key topics and requirements

• Definitions and classification of liner hanger system components.
• Functional and technical specification requirements for conventional and expandable systems.
• Design principles and verification/validation methods (mechanical performance, pressure integrity, load transfer).
• Material selection, corrosion/compatibility considerations and traceability.
• Quality assurance and control processes, inspection and testing requirements.
• Documentation, data control, marking and record-keeping requirements.
• Requirements for repair, packaging, shipment and storage of equipment.
• Explicit list of excluded items and boundary conditions for the specification’s application.

Typical use and users

Used by OEMs and manufacturers of liner hanger and associated completion equipment, oil & gas operators, well-completion contractors, engineering and design consultancies, procurement and QA/QC teams, and regulators specifying minimum technical and QC requirements for downhole liner systems.

Related standards

Often used alongside other API specifications and industry standards that cover downhole tools, completion equipment and pressure-containing components (for example other API 19-series documents and completion/connection standards). For cross-references and companion API documents consult API’s standard catalog and related technical specifications.

Keywords

liner hanger, liner packer, liner hanger packer, tie-back receptacle (TBR), polished-bore receptacle (PBR), seal assembly, setting tool, running tool, expandable liner, downhole completion, API Spec 19LH, oil and gas, well completion, equipment specification.

FAQ

Q: What is this standard?

A: API SPEC 19LH is a technical specification titled "Liner Hanger Equipment" that establishes minimum requirements for liner hanger systems and associated components used inside well conduits.

Q: What does it cover?

A: It covers design, design verification and validation, materials, quality control, documentation and data control, repair, shipment and storage for conventional and expandable liner systems and listed accessories; installation and field maintenance are excluded.

Q: Who typically uses it?

A: Manufacturers, well-completion and service companies, operators, engineering firms, procurement and QA/QC personnel, and regulatory or inspection bodies involved with downhole completion equipment.

Q: Is it current or superseded?

A: It is the current first edition published in June 2019 and maintained with Addendum 1 published in May 2021; there is no indication of supersession as of the addendum publication.

Q: Is it part of a series?

A: Yes — it belongs to API’s family of specifications for downhole, completion and well-construction equipment (the broader API 19-series and related API completion and tubular standards). Users typically consult related API specs when addressing adjacent equipment or performance requirements.

Q: What are the key keywords?

A: liner hanger, liner packer, tie-back receptacle, polished-bore receptacle, setting tool, expandable liner, well completion, API Spec 19LH.