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Non Cemented Liner Hanger

Non-cemented hydraulic liner hanger designed for reliability and performance in demanding downhole environments

DESCRIPTION:

FEATURES:

Bi-directional slip design for secure hanging and pressure containment
Anti-preset mechanism for enhanced operational safety
High-pressure rated for challenging well conditions
No internal setting chamber, increasing burst and collapse strength
Customizable PBR lengths from 1.5 ft to 20 ft

SPECIFICATIONS:

Usage example

Installation of Liner Hanger in Deep Geothermal Well

Location
Onshore deep geothermal reservoir, Slatina, Croatia
Objective

To install a 7" Sapsan Liner Hanger System in a deep geothermal well, with the primary challenge being deployment and reliable setting at a depth of approximately 4,500 meters under demanding geothermal well conditions.

Solution

A 7" Sapsan Liner Hanger System was deployed in a telescopic well configuration consisting of a 20" conductor, 13 3/8" casing, 9 5/8" casing, and a 7" liner. Both the 13 3/8" and 9 5/8" casing strings were designed for two-stage cementing using external casing packers (ECPs) and Stage Collars with the required accessories, ensuring zonal isolation and cement integrity across the well profile.

Work Process

The Sapsan liner hanger assembly was made up and connected to the drill pipe.

The system was run in hole to a depth of approximately 4,500 meters.

The liner hanger was successfully set according to the established running procedures. A pressure test was conducted to verify packer integrity and confirm proper sealing.

The running tool was successfully released from the liner hanger.

This product is usually taken with:

Liner Hanger
Osprey Cemented Liner Hanger

OSPREY is a hydraulic-set, hydraulic-release rotational liner hanger designed to suspend liners securely within intermediate or production casing strings

Liner Hanger
Repair packer

The Repair Packer is designed for remedial operations where leakage or a loss of integrity has occurred at the liner-top packer of systems such as SAPSAN or OSPREY

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