The Ballycatter WC-HP-2 Isolation Packer is a hydraulic-set, single-string tandem packer designed for multiple-zone well completions.

Its primary function is to act as the upper packer in a stacked packer system, working in conjunction with a lower hydraulic retrievable packer to create a sealed isolation zone between them.

This allows for selective treatment, injection, or production within specific well intervals. Additionally, the WC-HP-2 packer can be used toseal off casing holes or perforations, providing an effective solution for low-pressure well applications.

Ballycatter Mech-2 Double Grip Mechanical Packer

Available sizes: 5”, 5 1/2”, 6 5/8”, 7”, 9 5/8”, and 10 3/4”

The Ballycatter Mech-2 is a retrievable, compression-set double-grip mechanical packer designed for applications where pressure differentials from below are anticipated, such as combined stimulation and production operations. Featuring opposing slips above and below the packing element, the Mech-2 ensures secure bi-directional anchoring within the casing under varying well conditions.

The tool incorporates a built-in hydraulic hold-down system located beneath the face-seal bypass valve, enabling it to resist upward forces during stimulation treatments. A unique “Differential Lock” mechanism utilizes pressure from below the packer to actuate a balance sleeve, generating additional downward force that maintains bypass valve integrity and ensures a reliable seal.

The Mech-2 is mechanically set using a long-stroke mandrel and a J-slot mechanism. Once positioned, right-hand rotation and applied set-down weight close the bypass valve, engage both slip sets, and compress the sealing elements. The formation below the packer is then fully isolated and accessible only through the tubing. To retrieve, the tubing is raised the full packer length, automatically re-engaging the J-slot and reopening the bypass for pressure equalization and circulation.

With its dual-grip design, hydraulic hold-down, and controlled setting and release process, the Mech-2 offers a robust and dependable solution for demanding applications requiring secure annular isolation and enhanced downhole stability.

Ballycatter Mech-1 Single Grip Mechanical Packer

Available sizes: 5”, 5 1/2”, 6 5/8”, 7”, 9 5/8”, and 10 3/4”

The Ballycatter Mech-1 is a retrievable, compression-set mechanical packer designed for low-pressure production, casing integrity testing, and well intervention operations. Built with a long-stroke mandrel and a large bypass area, it allows unrestricted fluid circulation while running in hole. The bypass is controlled by a face-seal valve that automatically closes during setting, fully isolating the annulus once the packer is engaged.

Setting is achieved via a mechanical J-slot system using standard right-hand (or optional left-hand) rotation. Once the tool is positioned, applying set-down weight activates the slips and compresses the packing elements, sealing off the formation below. Retrieval is straightforward—lifting the tubing string engages the J-slot and reopens the bypass valve for safe circulation and recovery.

The Mech-1 features a rocker-type slip design for positive casing engagement and can be repositioned if required. Its straightforward operation, reliable sealing, and retrievability make it a practical solution for conventional production completions, casing leak diagnostics, and test operations where hydraulic setting is not required.

Ballycatter HP-5 Production Packer

Available sizes: 5 1/2”, 6 5/8”, 7”, 7 5/8”, and 9 5/8”

The Ballycatter HP-5 is a hydraulically set, mechanically held, pressure-balanced production packer engineered for deep, high-pressure oil and gas applications. Designed to withstand bi-directional pressure differentials, it performs reliably in demanding environments such as deviated wells, stacked completions, and alternate zone installations. Its internal pressure balance system offsets downhole pressure fluctuations and reversals, maintaining integrity in the set position.

The HP-5 features upper and lower mechanical slips for secure engagement with casing under all well conditions, and its packing element system delivers a robust, pressure-enhanced seal. A unique body lock mechanism prevents pre-setting during deployment, keeping all components rigidly locked as a single unit while running in hole. This makes the HP-5 particularly effective in coiled tubing completions and high-angle installations.

The packer is released via a straight pull, with field-adjustable shear pins that are unaffected by differential pressure—allowing for flexible, operator-controlled release without tool disassembly.

Compatible with a wide range of packer accessories, the HP-5 combines reliability, operational control, and downhole adaptability in a single robust solution for production and injection applications.

Setting Mechanism

The Ballycatter WC-HP-2 Isolation Packer is hydraulically set, meaning it is activated using tubing pressure rather than mechanical manipulation. During deployment, the packer is run into the wellbore as part of a stacked packer system, positioned above another hydraulic retrievable packer.

Once in place, hydraulic pressure is applied through the tubing, which compresses the packing element system, forcing it outward against the casing wall. Simultaneously, the slips engage to anchor the packer in position, ensuring a secure, pressure-tight seal within the isolation zone. The hydraulic setting eliminates the need for tubing rotation, making it particularly effective for deviated wells or conditions where mechanical manipulation is restricted.

Once set, the packer remains mechanically locked in place, independent of trapped hydraulic pressure. This design ensures that differential pressures, wellbore fluid movement, or thermal expansion and contraction do not compromise the seal, maintaining long-term zonal isolation. The packer can be used for treatment, injection, or production operations, providing a stable isolation barrier between zones for efficient fluid control and optimized reservoir management.

Retrieval Mechanism

The WC-HP-2 Isolation Packer is retrieved using a straight-pull shear release system, which allows for efficient and controlled removal without requiring tubing rotation.

When an upward force is applied to the tubing, the shear-release pins disengage, allowing the packing elements to relax and the slips to retract. This mechanical release mechanism ensures that retrieval forces remain unaffected by differential pressure, providing operators with a predictable and reliable method for packer removal.

For added flexibility, the shear-release force can be adjusted before running the packer to accommodate different well conditions.

The compact, debris-resistant design of the packer facilitates smooth retrieval, even in doglegged or deviated wells, reducing the risk of tool sticking.

By providing a simple, efficient release mechanism, the WC-HP-2 minimizes rig time and operational costs, making it a practical and cost-effective solution for multiple-zone completions and casing isolation applications.

The Ballycatter Model WC-ESP Straight Pull 4.5” Packer is a compact, hydraulic-set production packer optimized for ESP completions in 4.5” casing. It features a pass-through section for ESP power cables, allowing seamless electrical connectivity between the surface and the ESP unit below.

The single-mandrel design with Acner Array Packing Element ensures superior sealing integrity, even in high-pressure and high-temperature wells. Its bi-directional slip system resists pressure from both above and below, providing secure anchoring and preventing unwanted movement.

Setting is achieved hydraulically by applying tubing pressure, locking the packer in place for long-term well isolation. Retrieval is simplified through a straight pull mechanism, eliminating the need for complex downhole tools and ensuring fast, efficient removal in standard and deviated wells. Compatible with all major ESP cable pack-off and feed-thru devices, the WC-ESP Straight Pull 4.5” Packer delivers reliability and ease of operation in compact wellbore conditions.