Volcanogenic rocks as oil and gas collectors
The paper pays much attention to the idea of careful study of volcanogenic reservoirs, including lithologic and geophysical methods, which allow cutting and splitting of the section and identify complex types of collectors. The necessity of detailed study of volcanites secondary alteration, which leads to essential argillization of rocks with presence of swelling montmorillonite and zeolite compositions is emphasized. The latter ones are a significant factor complicating drilling and opening of the section’s productive parts. Some examples of commercial development of volcanogenic reservoirs in different parts of the world are given.