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а) б) в)
.
.
3
3
V,10 м/с V,10 м/с T,мкс/м
5 5 240
4 4 220
3 3 200
2 2 180
2.5 3.0,г/см 3 10 20 30 K ,% 10 20 30 K ,%
п
п
Figure 3.6 - Dependence V from δ (a) and K p (b) and ΔT from K p
(c)
The relationship between the speed of elastic waves,
interval time and porosity coefficient represented by the following
formulas:
1 1 K p K p
V p V sk V f . (3.5)
T T 1 K T K
sk p f p
As seen from the formula, there is a direct connection
between ΔT and K p (Fig. 3.6, c).
Find value ΔT – for layer according to AL, ΔT sk - for the
skeleton of the reservoir rocks and ΔT f - the liquid that fills the
pores (washing liquid) can be defined K p.
Method of determining K P according to GWL comes down
to that the each geological area are built depending relationship
between this geophysical parameters and K p, which is first defined
according to the core material. Then this dependency used to
determine K p, having only data of geophysical parameters.
The method of determine K og according to the GWL
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