FOR MORE INFORMATION, CONTACT US AT
FRACTUREID.COM
WHAT WE FOUND
HOW THIS IMPROVES COMPLETIONS
MECHANICAL FACIES MODEL IS A PREDICTION WIZARDFracture ID and
Hawkwood Energy joined forces to predict pressure treatment
responses by using a Mechanical Facies model.
We utilized Young’s Modulus (YM) and Minimum Horizontal Stress
(ShMIN) along with bedding and fracturing measured along the well
to derive unique rock types and their impact to completion
responses. The reason rock types were chosen rather than single
rock mechanical measurements is explained in the plot to the right.
While some trends can become evident (e.g. PR), the rock
characteristics are more complicated than any one single
measurement and need to be studied using a multivariate approach.By
training each facie to a rock type’s specific treatment response,
the model predicted hydraulic treatment responses on the next
well’s completion.
Results from post-frac analysis indicate that the predicted frac
gradient from the mechanical facies model correlated extremely well
with the actual post-frac gradient (an R2 value of 0.64), while
plotting stress vs. gamma ray alone showed no statistical
correlation. The model incorporates varying mechanical properties
along the wellbore that are used to improve cluster treatment
efficiency along with the ability to treat additional clusters per
well.
Fracture ID can predict how changing stages will affect perf
cluster treatment efficiency with credible accuracy. These
predictions improve operational efficiency and optimize
stimulations for specific rock types not otherwise identified using
single or sparse measurements to determine lithology.
78.076.074.072.070.068.066.064.062.060.058.056.054.052.050.048.046.0
0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35
r2=0.03
GAMMA VS. FRAC GRADIENT
GA
MM
A R
AY
FRAC GRADIENT (PSI/FT)
POISSON’S RATIO VS. FRAC GRADIENT
PO
ISSO
N’S
RA
TIO
FRAC GRADIENT (PSI/FT)
0.34
0.33
0.32
0.31
0.30
0.29
0.28
0.27
0.26
0.25
0.24
0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35
r2=0.19
HISTORY MATCHED WELL
UNCOMPLETED WELL
FACIES % BY STAGE (0–8) ACTUAL FRAG GRADIENT (1.5–0/88)
CALIBRATED FRAC GRADIENT (1.5–0.88)
1.45
1.25
1.05
0.85
0.650.65 0.85 1.05 1.25 1.45
PR
EDIC
TED
FR
AC
GR
AD
IEN
T
RECORDED FRAC GRADIENT
y=0.955x + 0.0488R2=0.6375
