Abstract:

The fracture-type reservoir is one of the important types for buriedhill reservoirs. Although the forming mechanism and seismic reflection characteristics of fracture-type reservoirs are complex and hard to be identified, 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 depression 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 exploration of buried hill reservoirs in this area.

Key words: Haiyue buried hill, fracture, variance, ant tracking, frequency attenuation, multi-attribute analysis