Hydrocarbon geology and reservoir formation characteristics of Niger Delta Basin

作者：Deng Rong Jing^*; Deng Yun Hua; Yu Shui; Hou Du Jie

来源：Petroleum Exploration and Development, 2008, 35(6): 755-762.

• Atlantic
• Deep waters
• Diapiric structures
• Exploration and development achievements
• Extensional structures
• Geological datums
• Lithologic traps
• Nappe structures
• Niger delta
• Niger deltas
• Oil and gas fields
• Oil and gasses
• Passive continental margins
• Petroleum explorations
• Progradation
• Reservoir formation
• Reservoir formations
• Shallow waters
• Structural traps
• Structural-depositional belt

Niger Delta Basin is abundant in oil and gas resources. Based on over 50 years of petroleum exploration and development and major geological data for the basin, this paper studies its petroleum geology characteristics and summarizes its reservoir formation and hydrocarbon enrichment rules. Niger Delta Basin is a passive continental margin basin developed in early Cretaceous in association with the breakup of Gondwana and the opening of South and Equatorial Atlantic and evolved two tectonic stages, namely rifting and drifting. Long-term marine regression since Eocene resulted in the Niger Delta, with three lithostratic units developed from bottom to top, i.e. Akata Formation, Agbada Formation and Benin Formation. During deltaic progradation, under the continental gravity, three structural zones were developed from north to south, which are extensional structure of Niger Delta, diapiric structure and obduction nappe structure. The large diapiric-obduction structural trap in deep water and the deep large faulted trap, faulted-nose structural trap and large lithologic trap at flank of structure in land-shallow water extensional structure are major future targets to explore large oil and gas fields in Niger Delta Basin.

• 出版日期2008