Type Curve Preview Calculator

Generate a simple production type curve from EUR and decline parameters. Preview expected production profile and cumulative production milestones.

Inputs

Initial Production Rate (bbl/day)

Initial Decline Rate (%/yr)

Annual nominal decline rate

Hyperbolic b-factor

b=0: exponential, b=1: harmonic, 0

Terminal Decline (%/yr)

Exponential tail decline

NGL Yield (bbl/MMscf)

For gas wells; 0 for oil wells

1-Year Cum. Prod.

Mbbl

3-Year Cum. Prod.

Mbbl

5-Year Cum. Prod.

Mbbl

Rate at 5 Years

bbl/d

Equations

Hyperbolic decline: q(t) = q_i / (1 + b × D_i × t)^(1/b)

Switch to exponential when: D(t) ≤ D_min

Cumulative: Q(t) = q_i^b / ((1-b) × D_i) × (q_i^(1-b) - q(t)^(1-b))

Need type curve matching, basin benchmarking, or reservoir performance analysis?