Description
The Hydraulic Power Expanding Annulus Casing Packer (ACP) is a downhole sealing and isolation tool designed to provide solid annular seal between casing strings or between casing and open hole in oil and gas well completion operations. Equipped with hydraulic expansion slips, this packer enables secure sealing and reliable completion performance under a wide range of well conditions.
An annulus casing packer is used to ensure proper zonal isolation by sealing the annular space to prevent fluid migration between formations, improving cementing effectiveness and long-term well integrity.
Product Overview
In well completion, annular isolation is crucial to maintaining well integrity and zonal pressure control. The Hydraulic Power Expanding ACP uses hydraulic force to drive expandable slips and sealing elements outward, providing firm contact with the casing wall or open hole surface. This design offers enhanced sealing performance compared to traditional compressional packers.
The hydraulic activation makes it easier to set the packer reliably, even in deep, deviated, or challenging well environments where mechanical methods may falter.
Key Features & Advantages
Hydraulically Expanded Sealing Slips
Provides stable and solid annular sealing through hydraulic expansion, ensuring reliable zonal isolation.High-Pressure Performance
Designed for high-pressure well environments to provide dependable sealing under load.Enhanced Setting Reliability
Hydraulic power setting reduces dependence on mechanical manipulation and increases setting control in deep or complex hole profiles.Wide Application Range
Suitable for deep, ultra-deep, directional, and horizontal wells where annular sealing and integrity are important.Adaptable Quantity & Configuration
The number and placement of packers can be chosen based on casing size and well requirements to achieve optimal sealing performance.
Technical Specifications
(The following parameters are derived directly from the table and product descriptions on the page)
| Size (in) | Slip Outside Diameter (mm) | Max Isolated Casing I.D. / Borehole (mm) | Thread |
|---|---|---|---|
| 4-1/2″ | 139.7 | 175.2 | BTC / LTC |
| 5-1/2″-I | 174.6 | 250.8 | BTC / LTC |
| 5-1/2″-II | 190.5 | 295.3 | BTC / LTC |
| 7″ | 203.2 | 265.1 | BTC / LTC |
| 9-5/8″ | 285.8 | 387.4 | BTC / LTC |
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 Hydraulic Power Expanding Annulus Casing Packer is ideal for:
Zonal isolation during cementing and completion in oil & gas wells
Sealing annular spaces between casing strings and open hole
Pressure control and fluid isolation in deep and deviated wells
Enhancing cementing effectiveness and long-term well integrity
Onshore and offshore well completion operations
Hydraulic packers help maintain well stability and prevent inter-zonal communication by providing solid sealing where reliable zonal isolation is required.
Frequently Asked Questions
Q1: What is a hydraulic power expanding ACP?
A hydraulic power expanding ACP is an annulus casing packer that uses hydraulic force to expand sealing slips and elements against the casing or open hole to create a secure annular seal.
Q2: How does this packer differ from traditional compressional packers?
Unlike compressional packers that rely on mechanical compression, this hydraulic model uses fluid pressure to drive slips outward, providing more controlled and reliable sealing, especially in deeper or deviated wells.
Q3: What well types is this packer suitable for?
It can be used in deep, ultra-deep, directional, and horizontal wells where reliable annular sealing and zonal isolation are essential.
Q4: Can the number of packers be adjusted for different wells?
Yes. The quantity and placement of packers can be selected based on casing size and well requirements to optimize sealing performance throughout the annulus.




