储层综合预测技术在隐蔽油气藏勘探中的应用——以板桥凹陷东斜坡为例

Application of comprehensive reservoir prediction technology in subtle reservoir exploration: A case study in the eastern slope of Banqiao depression

大港油田地球物理勘探公司研究所天津大港,300280

The Geological Research Institute of Dagang Oilfield Company, Dagang 300280, China

近几年,隐蔽油气藏逐渐成为东部老油田的重点勘探对象。板桥地区由于构造复杂、储层横向变化快,隐蔽油气藏的勘探难度较大。因此,采用储层综合预测技术,在宏观沉积背景及宏观井震关系研究的基础上,深入研究井震关系和岩电关系确定储层的地震响应,进而利用地震资料以及多种储层预测技术精确预测出储层展布范围。储层综合预测技术的应用,进一步搞清了该区砂体分布状况,为勘探部署提供了有力依据。

Subtle reservoirs have gradually become important exploration targets in mature oilfields in eastern China. The subtle reservoirs in Banqiao area is hard to detect due to complex underground structure and rapidly lateral changes of reservoirs. Based on the study of depositional setting and the relationship between well data and seismic data, the reservoir’s seismic responses were determined by the relationships between well data and seismic data, as well as between lithology and electrical properties. The lateral distribution of a reservoir was detected with seismic data and several reservoir prediction techniques. With the comprehensive reservoir prediction techniques, the sand distribution in the area was clearly outlined, which provides strong evidence for design of exploration program.