辽河坳陷滩海区海月潜山裂缝型储层预测研究

Fracture-type Reservoir Prediction in Haiyue Buried Bill of Tanhai Area,Liaohe Depression

裂缝型储层是潜山油气藏的重要储集层,裂缝形成的控制因素复杂,识别难度大;然而裂缝形成机制和地震反射特征是有规律可循的。因此,对裂缝发育控制因素和分布规律进行了分析探讨,并采用蚂蚁追踪裂缝识别、吸收衰减属性分析和多属性聚合分析等技术对潜山储层进行预测,细化处理流程,多种预测相互印证,减少单一预测方法存在的多解性和局限性,提高了潜山储层预测的可靠性。利用该方法在辽河坳陷滩海区海月潜山裂缝型储层进行实际应用,并取得了较好的效果,为潜山勘探提供了重要依据。

The fracture-type reservoir is one of the important types for buried-hill reservoirs.Although the form-ing mechanism and seismic reflection characteristics of fracture-type reservoirs are complex and hard to be iden-tified,there are still rules that can be followed;therefore this study analysis the controlling factors of fracture development and summarizes the distribution regularities of fractures.Furthermore the methods including ant tracking,frequency attenuation and multi-attribute analysis are employed to predict the buried-bill reservoir. With the above multiple prediction methods,the processing procedure can be refined and the predicting results can be referred to each other,thus the reliability of buried-hill reservoir prediction is much improved,avoiding the ambiguity resulted from single processing method.Taking Haiyue buried hill of Tanhai area in Liaohe de-pression as an example,this study uses the above methods to predict fracture-type reservoirs of this area,and the predict result is verified by well data and is coincide with the practice,providing an important basis for ex-ploration of buried hill reservoirs in this area.