Wellbore Genius

DFIT & step-down interpreter

Two free Live+ diagnostics: classify a shut-in pre-closure regime and invert step-down plateaus into perf Cd + near-wellbore tortuosity. No signup, nothing stored.

Read the manual — Live+ diagnostics

Pre-closure regime classifier

Data — `t_min, bhp_psi` per line

Regime

unclassified

Log-log slope

-0.636

R²

0.993

Samples

Window [min]

1.0 – 80.0

Slope near 0 → radial, 0.25 → bilinear, 0.5 → √t formation-linear, 1 → fracture-linear. Compare against your G-function to lock closure.

Step-down inverter (perf Cd + NWB tortuosity)

Data — `rate_bpm, delta_p_total_psi` per plateau

Model: Δp_perf=0.2369·ρ/(Cd²·n²·d⁴)·q² + Δp_NWB=K·q^0.5. Defaults: 8.34 ppg, 0.42″ perfs, 40 shots, Cd_design 0.85.

Tortuosity

elevated

Cd (effective)

0.310

Open shots

14.6

K_nwb [psi/bpm^0.5]

56.67

RMS residual [psi]

52.4

Plateaus used

Healthy K_nwb < 15, elevated 15–60, severe ≥ 60 psi/bpm^0.5. Falling Cd implies plugged / eroded perfs.