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Algoa盆地是南非大陆东南滨海的几个中生代沉积盆地之一。该盆地为裂谷盆地,细分为三个半地堑,即海上港口处的Elizabeth地垫、Uitenhage地垫和陆上的Sunsays河地垫。着重论述了对南非Algoa陆上盆地进行石油地质学重新评价的最新结果。始于20世纪60年代的勘探工作主要集中于一个构造闭合的走向带,已在这块陆上盆地钻了24口井。在海上9口井和陆上24口井中,虽然有几口井出现了令人鼓舞的油气特征,但迄今为止没有商业性油气发现。然而,根据区域地质学的重新评价、钻井结果以及层序地层解释中最新理论的应用,人们对该地区石油远景有了更新的认识。
The Algoa Basin is one of several Mesozoic sedimentary basins along the southeastern coast of South Africa. The basin is a rift basin subdivided into three and a half grabens, the Elizabeth mat at the maritime port, the Uitenhage mat and the onshore Sunsays mat. It focuses on the latest results of petroleum geology re-evaluation of the Algoa continental basin in South Africa. The exploration work that began in the 1960s focused mainly on a structurally closed strike zone in which 24 wells have been drilled in this onshore basin. Of the nine wells offshore and 24 onshore, there are no commercial hydrocarbon discoveries so far, despite the encouraging oil and gas characteristics in a few wells. However, based on the re-evaluation of regional geology, drilling results and the application of the latest theories in the interpretation of sequence stratigraphy, people have gained a new understanding of the petroleum prospects in the area.