StackFRAC HD System

Open Hole Multi-stage Completions

The Packers Plus StackFRAC® HD multi-stage completion systems are designed for open and cased hole stimulation in unconventional tight oil and gas formations. This innovative, field-proven system allows for exact placement of stimulation treatments in one continuous pumping operation. Once the stimulation operation is complete, the well can be immediately flowed back and put on production. StackFRAC HD systems provide operators with an efficient and cost-effective method to complete their wells.

Because the Packers Plus StackFRAC HD system is modular with regard to tool placement, it can be combined with other Packers Plus tools and systems, enabling customized design for targeted delivery of the stimulation program.

StackFRAC HD System

Learn more about Open Hole Multi-Stage Completions with StackFRAC HD

The StackFRAC HD multi-stage completion system offers many features and benefits

Mechanical stage isolation with
field-proven RockSEAL® H2 packers

Continuous rigless pumping
operation reduces completion time and cost

Access to natural fractures in
open hole applications

Full coverage in extended reach
horizontal wells

Custom stimulation of the entire

Immediate flowback after

Improved production results

Compatible with other Packers
Plus tools and systems

Questions? Need more information?



In addition to the production benefits achieved by the StackFRAC completed well, the fracture treatment was completed in a third of the time

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Packers Plus operational experience helps improve production

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Overall production with StackFRAC HD technology was up to 36% higher

The StackFRAC HD multi-stage completion system can be used in many applications

Open and cased hole horizontal and vertical wells

Multi-stage stimulation

Pre- and post-stimulation production testing

Tight oil and gas formations

Critical sour and HPHT environments

Extended reach horizontal wells


Questions? Need more information?

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See what the StackFRAC HD system is made of

RockSEAL H2 Packer

The RockSEAL H2 packer is a hydraulically set, mechanical packer. The dual-element design, along with premium seal technology, ensures reliable high-pressure zonal isolation during stimulation and throughout the life of the well. The RockSEAL H2 packer offers ease of installation through its short length, minimum outside diameter and anti-preset features. Hydraulic activation allows for precise control over the setting operation, resulting in time and cost efficiencies.

RockSEAL IIS Packer

The RockSEAL llS is a single-element, double-grip, hydraulically set retrievable open hole packer. It maintains the proven mechanical and element system of the dual-element packer along with an added anchoring capability. The anchoring slip design allows the packer to anchor the StackFRAC HD system at the toe of the well, wellbore junctions or other areas that require extra stability. This packer is typically run in conjunction with the RockSEAL H2 packer for added sealing capability, but can be used on its own as required.

FracPORT H2 Sleeve

The FracPORT™ H2 sleeve is a ball-actuated, hydraulically activated injection/production port. This sleeve is run between two RockSEAL H2 packers to allow specific zones of the wellbore to be isolated and selectively stimulated. By providing a flow area greater than the liner, the FracPORT H2 sleeve provides unrestricted flow for stimulation treatments. The FracPORT H2 sleeve is also available in a Drillable Closeable (DC) version that can be closed or re-opened for future operations. This allows for effective water or gas shutoff, flow control, re-fracturing and production testing.

Hydraulic FracPORT Sleeve

The Hydraulic FracPORT sleeve is a hydraulically activated injection/production port used for the first stage of all Packers Plus stimulation system applications. This sleeve opens at a specific pressure allowing communication between the tool string and the annulus. The unique configuration of the Hydraulic FracPORT sleeve ensures full opening for effective stimulation of the first stage. The Hydraulic FracPORT sleeve is also available in a DC version that can be closed and re-opened for future operations.

 Our commitment to quality


Packers Plus successful stimulation services begin with a fully integrated quality assurance and quality control (QA/QC) process that begins at the design stage and follows each tool through manufacturing, assembly, testing, shipping and installation. Automation and robotics are incorporated into our proven process to ensure consistency and repeatability of key criteria in each step as we design, develop and manufacture our patented tools and systems. As a commitment to quality and meeting stringent standards, Packers Plus has achieved ISO 9001 certification and  API Q1 Certification for our manufacturing and engineering operations in Edmonton, AB, and ISO 9001 in Houston, TX.

Read more about our world-class manufacturing capabilities.

Get in touch

Contact our Regional General Managers for more information

Erin Scott


+1 (403) 234-4088

Jim Foster

US & Latin America

+1 (832) 627-3247

Stuart Wilson


+971 (52) 979-9100

Our systems & solutions

TREX Toe Sleeve

Hydraulic Toe Sleeve

TREX Liner Hanger

PrimeSET Liner Hanger

StackFRAC HD-X System

Multi-Stage Ball-Drop Completions

TREX Limited Entry

Cemented QuickPORT IV Sleeves

StackFRAC Slimhole System

Restimulation & Well Recovery

ePLUS Retina Monitoring System

Combining Electronics with Reliability

SwellPLUS Packer

Swellable Zonal Isolation

TREX Single Point Entry

Cemented Diffusor Sleeves

QuickFRAC Batch Stimulation System

Limited Entry Ball-Drop Completions