Description
The Top Packer Liner Hanger is a downhole completion tool designed to support and hang a liner string while providing effective annular sealing to prevent fluid channeling during liner cementing operations in oil and gas wells. It integrates a packer element into the hanger assembly to enhance sealing performance and maintain integrity in demanding well environments.
A liner hanger system is used to suspend a liner casing from the previously installed casing string, reducing drilling cost and time compared to running full-length casing. The integrated packer not only supports the liner but also provides a seal at the liner top, helping isolate zones and improve cementing quality.
Product Overview
In oil and gas well construction, a liner hanger is a critical device positioned at the top of a liner string to attach it securely to the internal wall of the previously set casing. A top liner hanger with packer adds a sealing function that helps prevent fluid migration between the liner and casing after setting and cementing.
The Top Packer Liner Hanger from Shangshan Petro features a high-strength design suitable for advanced cementing operations and offers reliable pressure resistance with temperature stability.
Key Features & Advantages
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Integrated Packer Sealing Function
Combines packer sealing with hanger support to isolate formation pressure and stop channeling after setting and cementing. -
High Pressure & Temperature Capacity
Designed for working pressures ≥ 35 MPa and a maximum temperature of 180 ℃, meeting the needs of demanding downhole environments. -
Enhanced Cementing Quality
The sealing action at the liner top promotes improved cement placement and minimizes fluid pathways that can compromise zonal isolation. -
Application Flexibility
Suitable for different liner sizes and well types in both onshore and offshore oil and gas drilling projects.
Technical Specifications
| Parameter | Details |
|---|---|
| Pressure Resistance | ≥ 35 MPa |
| Temperature Resistance | Max 180 ℃ |
| Packer Material | Rubber tube made of ZP2020 |
| Function | Liner support and annular seal for cementing |
Please send us your required specifications, parameters, or technical drawings. Our expert team will help confirm the suitable model and provide a factory quotation within 24 hours.
Email: info@shangshanpetro.com
Contact: Contact Us for a Quote
Applications
The Top Packer Liner Hanger is widely used in:
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Liner cementing to prevent water channeling in oil & gas wells
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Providing annular sealing above the liner after setting
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Supporting liner weight and maintaining liner placement
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Enhancing zonal isolation during and after cementing
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Onshore and offshore drilling completion operations
Liner hanger systems with integrated packers play a vital role in well integrity and help optimize completion operations by reducing gas migration and fluid channeling.
Frequently Asked Questions
Q1: What is a liner hanger and what does a top packer do?
A liner hanger suspends a liner string from the existing casing. A top packer incorporated into the hanger assembly provides a seal to isolate the liner top and prevent fluid migration after cementing.
Q2: What pressure and temperature can this hanger handle?
This model is rated for ≥ 35 MPa pressure resistance and up to 180 °C temperature, suitable for high-pressure, high-temperature well environments.
Q3: Why is annular sealing important in liner cementing?
Annular sealing helps prevent formation fluid migration, water channelling and ensures better zonal isolation, improving long-term well integrity.
Q4: Can this hanger be used for both onshore and offshore wells?
Yes. Its design and ratings make it suitable for a wide range of oil & gas well environments including both onshore and offshore applications.
