Production Flares

Smokeless BurningTake advantage of our production flares’s low heat radiation levels and smokeless burning to meet regulatory standards.
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Flare PDF

Callidus Production Flares Brochure

Callidus Technologies has flaring solutions for oil and gas production in offshore or onshore environments. Our innovative flares can be used in the harshest offshore environments on platform and ship installations. Our production flares produce low heat radiation levels, smokeless burning at all flow rates and dramatic reductions in flare tip weight.

Our flare pilots are extremely stable and tested in hurricane force winds and rainfall levels. Callidus can provide production flare designs utilizing single exposed tips or multiple exposed tips (multipoint).

uop-callidus-expert-flareDistinct production production flaring solutions include:

We also produce totally enclosed systems that completely conceal the flare tip from view giving you:

  • No smoke
  • Very low noise
  • Reduced emissions
  • No radiation outside the combustor.

The Expert: A high-pressure flare whose internal nozzle for thorough mixing of waste gas and air. Low emissivity, low noise levels and a stable flame.

The IV (Cuatro): Ideal for offshore and FPSO applications. This tip has a short, compact flame to angle away from the rig or ship. Very low emissivity and low noise.

Hemisfalre PDF

Callidus Hemisflare Brochure


The Callidus Hemisflare tip design is a breakthrough in modern flare technology. Through the use of computational fluid dynamics (CFD) modeling and physical testing, a new method of flare gas combustion has been created. We’ve incorporated a Coanda design with enhanced ridges that has increased the flare gas and air mixing while enabling longer tip lifespan.

The new tip design offers:

  • Reduced flare steam consumption
  • Simplified Steam control system
  • Smokeless efficiency is improved

The Callidus Technologies Hemisflare stands out as one of the most technologically advanced flare tips due to its patent pending design features. With a heritage of technical expertise, we pride ourselves in providing innovative flares with:

  • High destruction efficiency
  • High smokeless capacity
  • Low noise
  • Low radiation

uop-callidus-hemisflare-efficiencyIncreased efficiency in Flare Gas and Air Mixing

The Hemisflare does not use cylindrical conventional technology. The new Callidus Hemisflare utilizes a patent pending Coanda bowl design to inspirate more air. When flare gases can be presented in a thin sheet, more of the gases come in contact with the air, increasing the likelihood of complete combustion. This is achieved using the Coanda Effect.

Our new bowl design uses raised vertical ridges around the outside of the bowl, significantly increasing the surface area of the bowl. Increased surface area improves the gas/air mixing, which improves the flare’s smokeless capacity. The bowl profile has also been enhanced through computational fluid dynamics modeling, and physical testing, to optimize the bowl shape and dimensions for the best combustion characteristics.

Hemisflare Advantages

  • Best available flare technology
  • Additional surface area increases contact between air and flare gas
  • Variable exit area allows for smokeless combustion at wide range of flows
  • Variable exit model has no welds in combustion zone
  • Increased mixing efficiency
  • Greater steam efficiency for
  • Hemisflare with steam assist

uop-callidus-air-assist-flareThe air assisted flare represents an effective alternative to traditional, steam-assisted smokeless flares. Significant advantages of the air-assisted design is a dramatic reduction in maintenance of the flare tip and lower operating costs.The continual flow of forced draft air cools the tip and prevents flame pull down in high wind conditions.

UOP Callidus Air Assisted Flare Advantages

  • Low maintenance
  • Long service life
  • Low operating costs
  • No steam lines to run
  • High smokeless capacity
  • Low noise design available
  • Plug welded brackets
  • Energy efficient pilots
  • Online maintenance of smoke suppression equipment (air blower)
  • Extremely stable pilot


Multipoint Production Flare Systems

This high duty and high smokeless capacity flare system features significantly higher surface to area relationship for waste gas exit compared to single tip designs. This design can facilitate mixing over the widest possible range of flow rates.

The burner design for this flare system should be executed to provide:

  • Inspirated air flow and gas flow in proportion
  • Stability of waste gas under varying flow conditions

This design best suited for these aspects is a spider-type burner whose center hub acts as a stability point, ensuring stable combustion through a wide range of compositions and turndowns. Our burner has a web underneath each arm that is different than the typical high-pressure tip. To avoid typical burner failure, the webs add reinforcement to the arms so that there is no thermal expansion to cause stress where each arm meets the center hub. In addition, the web is hollow on the inside to provide a better flow pattern to the outermost holes on the spider-type burner. This ensures that the gas will reach the area of the burner with the greatest access to air.


Computational Fluid Dynamic Modeling (CFD)

We use Computational Fluid Dynamic Modeling (CFD) to provide products that can meet increased efficiency and decreased emissions needs.  Our simulations can answer difficult questions with precision and speed, reducing the need for physical testing. Used alone or in conjunction with physical testing at our industrial scale test facility, simulation results help us evaluate virtually all combustion questions, including: efficiency, temperature profiles, flame shape, dispersion, and pollutant formation.
CFD modeling provides valuable information regarding radiation and emission levels around the flare and throughout the facility.

Contact us for specific information to meet your needs. Find your local Callidus Representative.