Casing Liner

Product Overview

A Casing Liner is a section of casing installed inside a previously cemented casing string and suspended below the surface rather than extending to the wellhead. It is used to provide wellbore support, isolate formations and enable continued drilling or production.

Key Specifications

• Specification Typical / Available Configuration
• Type Drilling / Production / Tie-Back Liner
• Material High-strength Alloy Steel
• Casing Size Model & well design dependent
• Grade J55, K55, N80, L80, P110, etc.
• Connection API / Premium Thread
• Wall Thickness Application dependent
• Length Well design dependent
• Pressure Rating Burst & collapse design dependent
• Suspension Liner Hanger
• Sealing Liner Top Packer / Cement
• Standard API 5CT / ISO 11960

Technical Features

• Suspended from the previous casing using a liner hanger.
• Provides structural support and wellbore integrity.
• Can isolate unstable, depleted or high-pressure formations.
• May be used as a drilling or production liner.
• Can be cemented in place for zonal isolation.
• Tie-back configurations can later extend the liner toward the surface.

API Specification 19LH covers liner-hanger systems and associated components including liner hangers, liner packers, liner hanger packers, tie-back/polished-bore receptacles and running/setting tools.

Applications

Oil & Gas Drilling • Well Completion • Production Wells • Deep Wells • Offshore & Onshore Wells • Formation Isolation • Well Integrity

CASING LINER — FOR SALE & LEASE

High-integrity casing liner systems designed to support well construction, formation isolation and completion requirements. Available in various sizes, grades, connections and configurations to suit specific well programs.

Exact size, grade, weight, length, connection, burst/collapse rating and liner-hanger configuration should be confirmed.