Mass-spectrometric investigations of the composition of hydrocarbon gases and trace elements migrating from oil and gas deposits
An inductively coupled plasma mass spectrometer was used to study the depth distribution of hydrocarbon gases and trace elements contained in solid rocks. The results indicate the migration of hydrocarbon gases and show that under the influence of penetrating water and dissolved gases there is a change in the composition and properties of rocks and their partial dolomitization. Taking this effect into account allows one to increase the reliability of forecasting when searching for oil and gas fields.