Oil & Gas Drilling Rig Fuel Consumption Calculator

How This Calculator Works

This tool estimates the fuel consumption, operating cost, and CO₂ emissions for different types of oil and gas drilling rigs. Consumption is calculated based on the rig type, operating time, and typical fuel rates (Liters per Hour or L/hr) for the primary power generation system.

[Image of a modern oil and gas drilling rig]

Fuel Calculation Formula:

Fuel Used (Liters) = Operating Hours $\times$ Consumption Rate (L/hr)

Total Cost = Fuel Used $\times$ Fuel Price (per liter)

CO₂ Emissions (kg) = Fuel Used $\times$ Emission Factor

Consumption Rates (Liters per Hour - Approximate Averages):

These rates represent a high average load (drilling phase) and cover main engines, auxiliary power, and 'hotel' loads (living quarters, HVAC). Actual rates vary significantly based on activity (drilling vs. tripping), water depth, and engine efficiency.

• Land Rig (1500 HP): $\approx 400$ L/hr
• Offshore Jackup: $\approx 650$ L/hr
• Offshore Semi-Submersible: $\approx 1100$ L/hr (higher power demand for positioning)
• Offshore Drillship: $\approx 1500$ L/hr (highest demand for dynamic positioning)

Emission Factors:

• Diesel (HSD): $\approx 2.68$ kg CO₂ per liter
• Natural Gas (Simplified E-Factor): $\approx 1.70$ kg CO₂ per liter equivalent (reflects lower carbon intensity vs. Diesel)

About Drilling Rig Power Systems

Modern drilling rigs utilize substantial diesel-electric or gas-electric power systems to run the drawworks, mud pumps, and other essential equipment. Managing fuel consumption is a major operational cost and a key factor in minimizing a well's overall carbon footprint.