Досліджено декілька методів для визначення глибини утворення нафтоподібних систем у надрах Землі за співвідношенням компонентів системи. Розроблено
методику розрахунку тиску і температури за співвідношенням ізомерів бутану та
пентану для нафти. Визначено розподіл температур і тиску, а також глибин у надрах
Землі, що відповідають цим термодинамічним умовам. Методику можна використовувати для розрахунку глибини, нижче якої флюїд такого хімічного складу буде перебувати в газоподібному стані. Визначено термодинамічні умови утворення нафти
Новогригорівського родовища.
The mineral and aggregate state of the Earth’s material is a product of interaction
between chemical compounds under natural thermodynamic conditions. Even with a constant element composition of the molecular system its component composition becomes
changed with temperature and pressure. In zones of high temperatures caused by a rapid
course of chemical reactions the component composition is close to balanced ones and can
be determined by laws of thermodynamics.
To determine a depth of formation of oil-like system in the bowels of the Earth one
can use varied relationships between the system’s components. About two tens of them
were cited by I. V. Vysotskiy.
Some relationships allow us to recognize shapes of occurrences of gas accumulations.
To determine depths of formation of oil-like system by the relationship between butane and pentane isomers three tasks should be solved:
1. To develop calculation methods of the pressure and temperature by the relationships between butane and pentane isomers for oil.
2. To determine the distribution of temperatures and pressures in the bowels of the
Earth as well as depths that correspond to these thermodynamic conditions.
3. To determine a range of the formation depths of oil in the Novohryhorivsk field.
In spite of some inaccuracy one can assert that by the relationship between butane
and pentane isomers oil from the Nova Hryhorivska field was formed at temperature of
1280–1340 K, pressure 1639–3946 MPa and at depths of 54–127 km.