Page 125 - A Practical Companion to Reservoir Stimulation

PRACTICAL COMPANION TO RESERVOIR STIMULATION

EXAMPLE H-5
leading to (from Eq. H- 13)
Development of Injection Rate Profile
(2) (3.14) (4.93 x lO-I4) (15.24) (3.45 x lo6)
Assuming that a layer exhibits the characteristics in Table q. =
H-I and assuming that the diverter constant K, is equal to (8+ 15) jK2.2 x lo-’[
6.15 x 1 0l6 and if C(,;,. = 0.1 %, calculate the injection rate
evolution. 7~ 10-4
- (H-16)
-
Solution (Ref. Section 15-5) Jl + 2.2 x 10-2 I
From Eq. H- 14, where r,must be in seconds.
K2 =[ 8 (3.14)’ (4.93 x 10-’4)2 (15.24)’ layer v$. time. (Units have been converted to BPM and
Figure H-1 is a plot of the injection rate evolution for this

(0.8) ( minutes.)
(6.15 x (3.45 x lo6) (0.001) 1
= 50 md [4.93 10-14 m2]
Ik
x
(8+ 15)? (H- 15) (
= 2.2x lo-’ s-I,

I AP = 500 psi [3.45 x lo6 Pa]
I A = 0.8 mz
P = 1 cp Pas]

Table H-1-Well and layer variables for Example H-5.

H-4