Dimensional Seismic Data In Fault Identification Method

By the oil fields' exploration and development continues, the geology objects they face are becoming more and more complex, wherever shapes and structures of fault layers play the key role in some oil and gas fields' formation. It is difficult for traditional 2-dimensional exploration method to find middle and small size fault layers and the 3-dimensional exploration work began from 1970s. Compared with 2-dimensional exploration method, 3-dimensional one has the advantages of greater data sampling density and better precision imaging capabilities, in this way it is more beneficial to research the underground detail structures. 3-dimensional coherency technique is an efficient method to find and recognize fault layers from 3-dimensional seismic data of all techniques.This article researches 3-dimensional coherency technique's application and accomplishment in fault layers' recognition and takes account of coherency function to pop out the data's unevenness in seismic data when fault layers occur. Then the horizontal cut piece to the coherency data will be done and the following step is to display the fault layers.