HETERO- AND HOMOGENEOUS STATES OF HYDROCARBON FLUIDS IN THE EARTH’S INTERIOR (FROM THE DATA OF THE STUDY OF SYNTHETIC FLUID INCLUSIONS)

Abstract

We performed the experimental study combined with in situ investigations of the phase composition and states of water-hydrocarbon fluids in synthetic inclusions in quartz. Thermometric data indicating of heterogeneous state of fluids at shallow, medium and large depths of oil and gas strata were determined. It has been shown that even at depths up to 10–12 km at temperatures of 250–290°С, water-hydrocarbon fluids with an oil content of 10 or more vol. % retain a heterogeneous state. Homogenization in such fluids, as have shown experimentally, is achieved at temperatures above 380–400°C only. However, such temperatures have not yet been detected in any of the real oil and gas basins of the world. The results of performed study allow predict the future discovery of homogenous oil and other hydrocarbon deposits.