Seismic Identification Of Fractured Reservoir In Chuanxi LHS

Fractured reservoir has already become the focus of oil and gas exploration today. With the development of seismic exploration method and seismic hardware equipment, especially the progress of fractured reservoir geophysical methods'theory and technical, prompting the development of seismic exploration in fractured reservoir. Seismic method is one of the most effective ways on testing the space distribution and internal structure of fractured reservoir.This study is based on Chuanxi LHS tectonic Xujiahe group fractured reservoir, which is typical classic fractured reservoir, impacted by multiple phase geologic structure movements, have complex reservoir characteristics and a strong non-means, fracture is the main percolation channel for oil and gas, it provides condition for acid solution'travel and increases the formation of induced cavity, which formed in the fracture zone is often a good hydrocarbon reservoir permeability condition, if the area in the development of the reservoir with good fracture configuration, it would be expected to obtain high yield industrial gas wells. Facts have proved that the area of industrial gas is obtained with the above conditions to the higher output , so looking for fractured zones has important significance to tight reservoir exploration and developmentFractured reservoir exploration research started late, technology has not yet mature, many new methods and new technologies have formed in recent years, but due to the complexity and regularity sent of fracture distribution, there isn't comprehensive exploration forecasting theory of fractured reservoirs. In the process of fracture detection, single method has multi-solutions and uncertainty, unable to achieve accurate detection of fractured zones. This article compares and analyses work area geology, well logging and seismic data, using pre-stack, post-stack combination methods of fracture detection, makes better predictions on macro and micro-fracture developing zone of reservoir. This method reduces the ambiguity of single fracture detection, combined with the prediction results of reservoir sandstone, provides a reliable basis for further exploration.