Gas Flowing Material Balance (GFMB)

This material calculates initial gas in place using the flowing material balance method. It uses flowing pressure and production rate data to estimate OGIP without shut-in pressure measurements.

The approach applies to gas reservoirs operating in boundary-dominated flow. It uses pressure-rate relationships derived from production data to compute reserves.

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How it works

• Input flowing pressure, gas rate, and PVT properties
• Confirm boundary-dominated flow regime
• Apply gas flowing material balance equation
• Fit pressure-rate relationship
• Calculate OGIP from fitted trend

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Key Features

• Gas flowing material balance formulation
• OGIP estimation from flowing data
• No shut-in pressure requirement
• Application under boundary-dominated flow
• Uses production-derived pressure relationships

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What you get

• Gas flowing material balance calculation file
• OGIP estimation workflow
• Input structure for pressure, rate, and gas PVT data
• Output for initial gas in place

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Notes

• Based on flowing material balance for gas reservoirs
• Requires stable boundary-dominated flow behavior
• Accuracy depends on data consistency and PVT quality

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FMB: Oil + Gas Combo Deal

If you're also interested in oil solutions, check out our Oil Flowing Material Balance Tool, here: Oil FMB Tool.

Better yet, grab the Oil + Gas FMB Bundle at a special combo price, here: Oil + Gas FMB Bundle.

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