Research on Sequence Stratigraphy and Evaluation of Exploration Targets in Indonesia SP Block

Abstract

Abstract: The sedimentary filling northwest of Indonesia SP Block can be divided into two second-order sequences (i.e. Paleogene rift sequence and Neogene depression sequence) and six third-order sequences. The Paleogene rift sequence, which consists of lacustrine sediments, developed at the rifting stage of the basin. Its subsidence center is located in the northeast part of the research area. The Neogene depression sequence, which mainly consists of marine sediments, developed in the downwarping stage of the basin. Its subsidence center shifts to the southwest part of the research area. There are three associations of source-reservoir-cap rock in the block, of which two developed in the rift sequence and one in the depression sequence. The exploration targets are selected on the basis of the comprehensive analysis of seismic data and petroleum geological conditions. The latest drilling results show that significant oil and gas discoveries have been obtained in lower rifting sequences.

Key words: SP block, rifting sequence, depression sequence, source-reservoir-cap rock association, exploration target

CLC Number:

P539.2

Hong Guoliang, Xue Liangqing, Kong Liping, Kong Wei, Yang Fuzhong, Yu Huilong and Yang Min. Research on Sequence Stratigraphy and Evaluation of Exploration Targets in Indonesia SP Block[J]. China Petroleum Exploration, 2007, 12(3): 72-76,3.

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Research on Sequence Stratigraphy and Evaluation of Exploration Targets in Indonesia SP Block

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