Schlumberger required a flaring solution capable ofhandling produced gas streams with extremely low hydrocarbon content andcontamination, creating inherent combustion and stability challenges. Thesystem needed to address the following constraints:

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• Very lean gas composition with limited calorificvalue
• Presence of contaminants requiring robust combustion containment
• Requirement for stable, enclosed combustion to meet safety and environmentalnorms
• Continuous operation in remote desert conditions at Barmer
• High reliability expectations under upstream production constraints

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The flare had to ensure consistent ignition, stableflame retention, and controlled radiation while operating with a difficult andvariable gas stream.

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CRA engineered and manufactured a fully integratedenclosed flaring system specifically designed for lean and contaminatedproduced gas applications. The solution emphasized combustion stability,maintainability, and turnkey delivery.

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Core Components Delivered

• Custom-designed enclosed flare with advanced combustion geometry
• Engineered burner optimized for lean gas combustion
• Pilot and Flame Front Generator ignition system
• Dedicated air blower for controlled combustion air management
• Fully integrated piping, instrumentation, and control systems
• Skid-mounted enclosure and structural framework

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Engineering and Validation

• Detailed structural design and layout engineering
• FEA simulations to validate mechanical integrity
• Radiation and noise analysis to ensure site compliance
• Electrical engineering and interlock logic for safe operation
• Maintenance-focused design provisions for long-term reliability

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Fabrication, Testing, and Commissioning

• Complete in-house fabrication of all mechanicaland combustion components
• Factory testing of ignition, airflow, and control logic
• Fully skid-mounted delivery for rapid installation
• On-site commissioning and performance validation at Barmer

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• Stable combustion achieved for lean gas withhydrocarbon content below 10%
• Safe and controlled enclosed flaring of contaminated produced gas
• Reliable ignition and flame stability under continuous operation
• Compliance with safety, radiation, and noise requirements
• Seamless integration into Cairn’s upstream production facilities
• Demonstrated performance in a remote desert operating environment

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This project highlights CRA’s capability toengineer and deliver enclosed flaring systems for some of the most challengingupstream gas compositions. By combining advanced combustion design, in-houseengineering validation, and fully integrated manufacturing, CRA providedSchlumberger and Cairn with a robust, compliant, and repeatable solution forlean and contaminated produced gas. The Barmer installation reinforces CRA’s expertise in turnkey flaring systems where combustion stability, safety, andreliability are critical under difficult operating conditions.

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