StackFRAC HD-X System

Open Hole Multi-stage Completions

The Packers Plus StackFRAC® HD-X multi-stage completion system provides high intensity stimulation in unconventional tight oil and gas formations. An advanced seat and port activation design along with a proprietary anti-erosion coating enables smaller ball and seat increments to be used for increased stage counts. Once the stimulation operation is complete, the well can be immediately flowed back and put on production. StackFRAC HD-X systems provide operators with an efficient and cost-effective method to complete their wells.

The StackFRAC HD-X system is modular with regard to tool placement and can be combined with other Packers Plus tools and systems, enabling customized stimulation programs.

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

Reduces costs with continuous rigless pumping operations and immediate post-stimulation flowback

Stimulate more of the wellbore with improved isolation using field-proven mechanical RockSEAL® H2 packers

Reduced cost using degradable balls that do not require millout

Increase reservoir contact with higher stage counts from smaller ball and seat increments

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StackFRAC HD-X increases stage count for extended reach lateral wells

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The Packers Plus StackFRAC HD-X high fracture intensity system was specifically designed for extended reach laterals.

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Packers Plus Advances High Frac Intensity Capabilities with 50-stage Wells in the Williston Basin

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

Extended reach horizontal wells

Open and cased hole horizontal and vertical wells

Pre- and post-stimulation production testing

Tight oil and gas formations


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See what the StackFRAC HD-X system is made of

RockSEAL H2 Packer

Dual-element, hydraulically set, mechanical packer with premium seal technology

Reliable high-pressure zonal isolation during stimulation and throughout the life of the well

Short length, minimum outside diameter and anti-preset features improve ease of installation

FracPORT H2 Sleeve

Ball-actuated, hydraulically activated injection/production port

Ports provide unrestricted flow for stimulation

Drillable Closeable (DC) version available water or gas shutoff, flow control, re-fracturing, production testing

See how the StackFRAC HD-X system works


The StackFRAC HD-X system is installed with a rig by spacing out tools on production liner. When the desired total depth is reached, the wellbore can be circulated over to completion fluid.


A ball is pumped from surface to the toe of the system to close off flow with the annulus allowing hydraulic pressure to build inside the system.


This pressure sets the system by hydraulically activating the packer and anchor tools. This anchors the system in the casing and open hole, and creates individually isolated stages along the wellbore.


Once the system has been set, the running string is removed and the fracture string is installed. The rig is removed and stimulation equipment is brought on location.


Stimulation of the first stage is initiated at the toe of the wellbore using a Hydraulic FracPORT sleeve, which is opened by further increasing hydraulic pressure.


Fluid pressure is further increased causing a fracture to form in the rock. Proppant is then pumped as a slurry behind the fluid to fill the fracture.


A pad of fluid is pumped to flush the system of proppant above the stimulated stage. The amount of fluid is precisely calculated to prevent overdisplacement of the proppant, ensuring connectivity to the wellbore.


Stimulation of the second stage is initiated by pumping a slightly larger ball right after the pad of fluid. This ball lands in a FracPORT H2 sleeve and hydraulic pressure is increased causing the sleeve to open.


This process is repeated in a single, continuous pumping operation. The well can be immediately flowed back and production brought on line. If desired, the system can be milled out.

 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 (303) 407-9910

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

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