Wellbore Genius

Downhole Simulator

Performance modeling

v1.0Solver: OK

1D Mechanical Earth Model builder

Paste sonic + density logs → continuous σv (trapezoidal overburden), Pp, σh,min, σH,max profile. Optionally calibrate the tectonic-strain scale to LOT / DFIT closure pressures.

Log rows

CSV — headers: tvd, rhob, dtc, dts (optional pp). Units: TVD [ft], ρb [g/cc], Δt [μs/ft], Pp [psi].

Calibration points (LOT / DFIT)

CSV — headers: tvd, closure, label. Closure ≈ σh,min [psi]. Leave blank for an uncalibrated profile.

Model parameters

Pp gradient [psi/ft]

Biot α [-]

Tectonic strain εH [-]

Tectonic strain εh [-]

Stress vs depth

Fitted εscale = 96141.540

RMS 91 psi

σv (integrated)σh,minσH,maxPpMeasured closure

Calibration residuals

Label	TVD [ft]	Meas [psi]	Pred [psi]	Δ [psi]
DFIT-1	8000	6500	6599	-99
DFIT-2	10500	8800	8717	83

Profile table

TVD [ft]	ρb [g/cc]	σv [psi]	Pp [psi]	ν [-]	E_static [psi]	σh,min [psi]	σH,max [psi]
4000	2.450	4243	1860	0.251	38	3537	4708
6000	2.500	6387	2790	0.263	41	5060	6314
8000	2.550	8573	3720	0.272	44	6599	7921
9000	2.580	9684	4185	0.275	47	7417	8823
10500	2.620	11373	4883	0.282	51	8717	10246