Page 236 - Reservoir Formation Damage

216 Reservoir Formation Damage
35
A TSS=3843mg/.«
30 (SLOPE= 0.389 '/min
INTERCEPT = -5.36)
a TSS - 5790 mg/0
(SLOPE = 0.1396'/min
INTERCEPT*-3.09)
20

10

50 100
TIME (Min)

Figure 10-9. Diagnostic chart for cake forming by external particles invasion
(after Wojtanowicz et al., ©1987 SPE; reprinted by permission of the Society
of Petroleum Engineers and after Wojtanowicz et al., ©1988, reprinted by
permission of the ASME).

360mg//
a 0,00% • 5/i m, TSS • 935mg/./
=
IO/*m,TSS 1250 mg//
22/um, TSS • I600mg//

20 30 40 50 60 80 90 100
TIME (Min.)
Figure 10-10. Diagnostic chart for transition from gradual pore blockage to
single pore blockage during external particles invasion (after Wojtanowicz et al.,
©1987 SPE; reprinted by permission of the Society of Petroleum Engineers and
after Wojtanowicz et al., ©1988, reprinted by permission of the ASME).