海上岩性油气藏勘探的关键思路与技术方法——以渤海海域石臼坨凸起中段为例

摘要/Abstract

摘要： 20世纪90年代渤海海域石臼坨凸起中段油气勘探以寻找构造油气藏为主、岩性油气藏为辅，之后经过近10年的探索，却始终未取得突破性进展。近年来转变勘探思路，在构造翼部寻找岩性油气藏，取得了良好的勘探成效。在实现岩性油气藏勘探的过程中，总结了一套适合石臼坨凸起中段特点的勘探思路与技术方法：重视勘探开发紧密结合，利用层序地层划分技术建立目的层系的层序地层格架，综合运用精细时深转换、地层切片与地震属性联合分析以及储层综合预测等关键地球物理技术，实现石臼坨凸起中段岩性油气藏勘探的重大突破，钻井成功率达80%。

关键词: 渤海, 石臼坨凸起中段, 岩性油气藏, 勘探思路, 关键地球物理技术

Abstract: In the 1990s, oil and gas exploration in the middle section of Shijiutuo Salient, Bohai Sea area, focused primarily on structural reservoirs and secondarily on lithologic reservoirs. Over a decade of exploration, however, no breakthrough progress was made in this area. Accordingly, exploration targets were changed to lithologic reservoirs at structural flanks, which have revealed good results. Through the practices of lithologic reservoirs, a set of exploration approach and techniques have been concluded for the middle section of Shijiutuo Salient. In detail, based on integrated exploration and development, sequence stratigraphy framework of target layers is established by using sequence stratigraphic classification technique, and key geophysical technologies (e.g. fine time-depth conversion, formation slice, combined seismic attribute analysis and integrated reservoirs prediction) are combined, in order to realize great progress in the exploration of lithologic in the area. Application has proved good results, with the success rate of drilling up to 80%.

谷志猛, 王德英, 王明臣, 杨海风, 张藜. 海上岩性油气藏勘探的关键思路与技术方法——以渤海海域石臼坨凸起中段为例[J]. 中国石油勘探, 2015, 20(4): 54-62.

Gu Zhimeng, Wang Deying, Wang Mingchen, Yang Haifeng, Zhang Li. Key Exploration Approach and Techniques for Offshore Lithologic Reservoirs: A Case Study on the Middle Section of Shijiutuo Salient in Bohai Sea Area[J]. China Petroleum Exploration, 2015, 20(4): 54-62.

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