- 责任者：Liu Zuodong (Research Institute of Petroleum Exploration & Development ; PetroChina ; Beijing 100083 ; China) ; Li Jianghai
- 刊名：Petroleum Exploration and Development
- 出版年：2011
- 卷期：38(2)
- 关键词：盐构造 ; salt tectonics ; 油气藏形成 ; reservoir formation ; 西非 ; West Africa
- 页码：p.196-202
- 图表：3 illus., 30 refs.
- 分类号：1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
Salt basins along the passive continental margin of West Africa are becoming one of the most attractive areas for hydrocarbon exploration. The oil and gas discovered recently are related to salt structures. The salt structures are widespread in Anglo-Cameroon, the thickness of salt is up to 1 500 m and the average width is 300 km. These basins can be divided into two parts in horizontal direction: extensional zone and compressional zone. The extensional zone includes sealed titled zone, growth fault zone and diapir zone, and is characterized by tilted block, rollover structure and turtle structure anticline. The compressional zone is characterized by salt sheet, salt tongue, thrust fault and small folds. Oil and gas are distributed in both the zones, oil and gas reserves in the extensional zone are a little more than those in the compressional zone. Several types of salt related traps can be recognized. Salt anticlines are the most potential exploration targets.