7. Petroleum and Natural Gas Accumulation Units and Distribution Patterns

This chaptere delves into the fundamental units of oil and gas accumulation in the Earth's crust, focusing on the distribution patterns and types of oil and gas fields. It explores the geological factors that control the distribution of these resources, including regional geological structures, lithological conditions, and structural conditions. The text provides a detailed classification of oil and gas fields based on lithology and structure, highlighting the main types such as sandstone and carbonate oil and gas fields. Additionally, it discusses the geological factors that influence the distribution of oil and gas fields, including the role of regional geological structures and lithological conditions. The chaptere also presents typical cases of major petroliferous basins, such as the Persian Gulf Basin, West Siberian Basin, and Songliao Basin, offering practical insights into the exploration and development of oil and gas resources. The text concludes by emphasizing the significance of understanding the distribution patterns and types of oil and gas fields for effective exploration and development strategies.