基于蚂蚁体追踪技术的裂缝预测——以东营南坡东部沙四段碳酸盐岩为例

A fracture prediction method based on ant tracer technique: A case history of carbonate rock of Es_4 of the east of the south slope of Dongying sag

东营凹陷东部沙四段上碳酸盐岩发育面积广,裂缝的发育程度对油气富集起控制作用。采用蚂蚁体计算方法对蚂蚁边界、追踪偏差、终止条件等关键参数进行了详细分析。在相干体属性基础上进一步进行蚂蚁追踪,明确了断裂组合关系和裂缝的发育程度。在此基础上,划分研究区裂缝发育区,确定碳酸盐岩有利区的发育规模。

The carbonate rock developed widely the upper of Es4 of the east of the south slope of Dongying sag, andthe oil enrichment is controlled by the level of fracture development. The key parameters, such as the ant boundary,trace deviation and stop criteria, are analyzed by the ant calculation. Based on the coherent volume attribute, the relationof the fracture combination and the level of fracture development are confirmed further by the ant tracer, andbased on this, the fracture development areas are divided in the working area and the scale of the promising carbonaterock development area are defined.