Flarestack systems are gas combustion devices utilized on wellsites and at facilities to safely and effectively burn excessive hydrocarbon gases that cannot be recovered or recycled. Excess hydrocarbon gases are burnt in the flare systems as an alternative to releasing the vapour directly into the atmosphere.
Benoit Rentals Ltd. offers a number of different flarestack design options for rental or purchase. Units include Guy-Wire Flarestack Systems, Portable Wheeled Flarestack Systems, and Self-Supporting (Freestanding) Flarestack Systems. Stock unit sizes ranze from 3″ to 6″ in diameter and are up to 60′ tall. The recommended flowrate capacities range from 2.5mmcf/day through to 10mmscf/day.
Flarestacks
Our 3" and 4" 40' flarestacks come with everything you need to get your project running, as well as optional add-ons to meet your job site's unique needs.
Our 6" 60' Flarestacks are easy to set up and come with plenty of options to ensure they best meet your needs.
Our portable flarestack comes in a variety of sizes and is mounted to a heavy-duty axle for easy transportation.
We offer several sizes of freestanding flarestacks. These flarestacks are self-supporting and do not require guy-wires, meaning that they take up minimal space.
Proudly serving and renting equipment to the oil and gas industry in Alberta & Saskatchewan
We proudly service all of Alberta and Saskatchewan including Chauvin, Provost, Macklin, Wainwright, Hardisty, Camrose, Lloydminster, Vermillion, Bonnyville, Fort McMurray, Kindersley, Kerrobert, Edmonton, Calgary, Red Deer, Medicine Hat, Fort Saskatchewan, Nisku.
Feel free to stop in or contact us for further information regarding our equipment, and range of services in Alberta and Saskatchewan.
Alberta Oil and Gas
Rental Service Area
Saskatchewan Oil and Gas
Rental Service Area
Frequently Asked Questions
How do Benoit Rentals' flarestack packages comply with AER Directive 060 and Saskatchewan Directive S-01 regulations?
Operating gas flaring equipment across Alberta and Saskatchewan requires strict adherence to environmental standards, specifically Alberta Energy Regulator (AER) Directive 060 and Saskatchewan Ministry of Energy and Resources Directive S-01. Our rental flare stack systems are engineered and maintained to meet these rigorous regulatory frameworks. They ensure high-efficiency combustion, minimize unburned hydrocarbon emissions, and reduce visible black smoke. We provide all the necessary technical documentation, flow capacity calculations, and pilot specifications your compliance team requires to ensure your well testing or routine production facility remains fully compliant with provincial clean-air mandates.
Why is a flare knock-out drum required with a flarestack system, and do you supply them as a matched package?
Pairing a flare knock-out drum with your flarestack is essential for both operational safety and environmental compliance. The knock-out vessel acts as a critical liquid trap, stripping out heavy hydrocarbon condensates, formation water, and lubrication oils from the produced gas stream before it reaches the combustion tip. Without an adequately sized knock-out drum, liquid carry-over can lead to dangerous burning liquid fallout—often called ‘raining fire’—severe flame tip damage, and excessive black smoke. Benoit Rentals supplies completely integrated, skidded knock-out and stack packages to guarantee safe, trouble-free gas combustion on your lease.
What types of pilot and ignition systems are available to prevent flameouts during high prairie winds?
Western Canadian prairie winds can easily extinguish unprotected open pilots, creating dangerous off-gas venting situations and regulatory penalties. To combat unpredictable weather, Benoit Rentals equips our flarestack systems with reliable continuous electronic spark pilots, solar-powered auto-ignition packages, and heavy-duty flame retainers designed to withstand heavy wind gusts and blowing snow. These automated systems continuously monitor flame status via thermocouples or optical sensors, instantly restriking the pilot if a flameout occurs. This guarantees uninterrupted combustion without requiring site operators to manually relight the stack in foul weather.
When should operators choose a self-supporting freestanding flarestack over a guy-wired system?
Choosing between a freestanding or guy-wired flarestack comes down to your lease footprint, pad congestion, and lease tenure. Guy-wire flare systems are lightweight and economical, but their anchor radius requires an expansive, clear ground footprint, which can interfere with vehicle traffic or drilling equipment on congested pads. Freestanding, self-supporting flarestacks feature a robust, heavy-duty structural base that requires zero guy-wires or ground anchors. This compact footprint makes them the ideal choice for crowded multi-well batteries, urban-adjacent locations, or lease sites where buried utilities prevent driving ground anchors.
How do I determine safe setback distances and thermal radiation zones for a 40-foot or 60-foot flarestack on my lease?
Determining safe setback distances for a flarestack requires calculating the maximum thermal radiation intensity emitted during peak flaring events, along with assessing prevailing wind directions and nearby hazards. Both AER Directive 060 and provincial fire codes establish minimum separation buffers between flare tips and wellheads, pressurized storage tanks, forested boundary lines, and public roadways. Benoit Rentals’ technical team assists operators with thermal dispersion calculations and plume modeling data, ensuring your 40-foot or 60-foot stack is spotted at a safe, fully compliant distance to protect personnel and lease equipment from radiant heat.
Can your rental flarestacks handle sour gas streams with elevated concentrations of hydrogen sulfide (H2S)?
Handling sour gas streams containing hydrogen sulfide (H2S) demands specialized metallurgy and robust safety features to avoid sulfide stress cracking and hazardous atmospheric releases. Benoit Rentals offers flare packages specifically configured for sour service, built with NACE MR0175-compliant steel components, high-temperature alloy burner tips, and corrosion-resistant valves. These packages ensure high-efficiency thermal destruction of H2S gas, converting it safely to sulfur dioxide while maintaining flame stability, protecting the health of nearby communities, wildlife, and on-site field operators during well testing or sour production.
What operational scenarios are best suited for your portable wheeled flarestack systems?
Our portable wheeled flarestack systems are specifically built for rapid mobility, short-duration projects, and dynamic field applications. Mounted on heavy-duty, highway-rated trailer axles, these units can be hot-shotted and set up in a fraction of the time required for conventional skid units. They are the ideal rental solution for short-term drill stem testing, routine swabbing operations, pipeline tie-in purges, and emergency casing blowdowns where establishing a permanent or long-term guyed stack would be economically impractical. Once testing concludes, the trailer package can be de-rigged and mobilized to the next lease immediately.
What lifting equipment and rigging procedures are required to safely erect a 60-foot flarestack in the field?
Safely raising a 40-foot or 60-foot flarestack in the field requires specialized rigging procedures to prevent structural distortion or dropped-object incidents. Benoit Rentals’ flarestacks are engineered for streamlined, safe deployment, featuring integrated pivot hinge pins at the base and specialized lifting lugs. Depending on the size of the stack and lease ground conditions, units can be safely erected using a standard picker truck, a gin-pole bed truck, or our manual cable winch packages. We provide clear rigging diagrams, load-bearing guidelines, and certified lift points to ensure your field crew executes the lift safely.
How do you properly size the diameter and height of a flarestack based on anticipated gas volumes and backpressure?
Proper flarestack sizing balances total gas volume, inlet line backpressure, and sonic velocity limitations at the burner tip. If a stack diameter is too small, high backpressure can choke upstream separators or cause excessive burner tip roar and flame lift-off; if it is too large, low gas velocity can result in internal burn-back and stack degradation. Our fleet spans 3-inch, 4-inch, and 6-inch diameters with heights up to 60 feet, handling gas flow capacities from 2.5 to 10 MMSCF/day. We help you review your expected flow rates and pressures to select the optimal stack dimensions.
Can your flare systems be deployed on short notice for planned facility turnarounds or emergency pipeline blowdowns?
During scheduled gas plant turnarounds, pipeline maintenance shut-ins, or unplanned facility blowdowns, operators need immediate temporary flaring infrastructure to depressurize vessels and pipelines safely. Because our primary operations yard in Chauvin is strategically positioned near major pipelines and rail corridors, Benoit Rentals can rapidly dispatch skidded or trailer-mounted flare packages on short notice. We offer adaptable rental terms tailored to short turnaround windows, delivering inspected, hydrotested, and gate-ready combustion packages that keep your maintenance shutdown strictly on schedule without risking costly downtime or environmental penalties.