Experimental Study About Water Saturation Influence on Changes in Reservoirs Petrophysical Properties

Experimental determination of the physical properties rocks under conditions simulating in situ reservoir is great importance both for calculation reserves and interpretation well logging data. In addition, it also important preparation hydrocarbon field development projects. The study processes changes petrophysical controlled allows not only to determine their reliability but evaluate dynamics these depending on temperature pressure water saturation rocks. this work, an evaluation dependence reservoirs (Sw) was carried out. Residual (Swr) created were compared at states partial (25 %) complete (100 %). parameters partially saturated during increase effective studied estimates obtained. results showed that when increased, Swr increases by average 6 % atmospheric conditions. This accompanied velocity longitudinal (by 51.9 average) lateral waves 37.1 average). As residual increases, permeability decreases standard conditions, with, gas decreasing dry samples 23 with (effective 27 HIGHLIGHTS Changes determining (permeability, porosity, elastic, electrical, deformation strength) modelling Assessment effectiveness Comparisons between core which pore space fully fluid model Estimation water-saturated formation GRAPHICAL ABSTRACT