The Study of Petroleum Collective System in Rift Lacustrine Basin

Key words: 
• Jiyang Depression /
• scale of sequence /
• oil and gas collective system

Abstract: According to the division of the scales of fluvial systems，the petroleum collective system in the Tertiary of Jiyang depression are devided into large ,middle and small scale. The petroleum collective system of different scale effected the formation of oil and gas field or oil and gas reservoir of different scales, at the same time, the petroleum collective system of different scale are determined by the sequence of different scales. The ways and the results of exploration in different scaled petroleum collective system of different scale are also different. So, according to the scales of the sequence and systems, the scales and types of oil and gas field or oil and gas reservoir can be predicted and explorated.