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а)                                б)
                                                                        від
                                    J  n                          J  n
                               2.0                              1.0
                               1.8                              0.8

                               1.6                              0.6
                               1.4                              0.4

                               1.2                              0.2
                               1.0
                                                      п
                                                                                       п
                                          20     40  K  ,%        0        20     40  K  ,%
                                   Figure 3.5 - Dependence I nγ (a) and ΔI nγ (b) from K p

                                   Considering that absolute value I nγ also depends from other
                            factors,  it  is  advisable  to  use  the  relative  value  of  the  radiating
                            gamma-rays (Fig.3.5b):

                                                        I  x  n   I  min
                                                                n
                                                 I                1,                              (3.4)
                                                     n  max   min
                                                        I    I
                                                          n     n

                                     x
                            where I nγ -  intensity of caused gamma radiation for the reservoir
                                                           max/min
                            with unknown value of K p; I nγ     -  intensity of caused gamma
                            radiation  for  supporting  layers  with  known  value  of  K p
                            (respectively maximum and minimum).

                            Method AL

                                   The speed of propagation of elastic waves  in rocks has a
                            direct relationship with the density of rocks and inverse with  K p
                            (Fig.3.6a,b).
























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