Ryabuha V. Lithological-and-petrophysical properties of terrigenous rocks-reservoirs and its influence on the geophysical parameters (by the example of oil and gas fields for central part of DDD)

Object of research – terrigene rocks of low carbon of central part of DDD, as a most perspective concerning oil-and-gas content; the purpose of research – studying lithological-and-petrophysical properties of terrigene rocks of low carbon of central part of DDD; methods of research – petrophysical researches of core, industrial geophysical researches of boreholes, summarizing and analysis geological and geophysical information, petrophysical modelling; scientific novelty – necessity of rock samples ablution from residual dry salt was proved; 4 lithologic types of rocks were marked out; correlation dependences Рp=f(Сp), Рs=f(Сw) and ?t=f(Сp) was made and petrophysical proved for every lithologic type separately; confrontation of permanent water-saturation coefficient and rock’s porosity coefficient consideration of lithologic type was made; it allowed to determine the most probable value of permanent water-saturation coefficient for every rock’s type, it can be used for determination their effective porosity.