Rapid extraction of three instantaneous attributes in the application of high-density on-site seismic acquisition data quality control

Abstract:

It is very important to evaluate the quality of the acquired high-density seismic data on-site acquisition. Fast、quantitative data analysis method can help on-site quality control personnel to monitor the quality of data conveniently. It can also estimate the distribution characteristics of abnormal data. We can adjust the construction parameters in time and guide the on-site acquisition work based on the results of the analysis.

Mass data have been acquired by high-density seismic acquisition. Work-load of on-site data analysis and process is increasing because of mass data. We need to analyze the quality of the data quickly and improve the accuracy of the result. In normal seismic data on-site acquisition, on-site quality control personnel usually use qualitative method to analyze seismic data so the analyzing result is affected by the experience of quality control personnel. On-site seismic data analysis method gradually develops from qualitative to quantitative. Now we estimate the quality of seismic data by statistical characters instead of experience. The result of estimate is more reliable.

On-site processing software has some analysis method like amplitude analysis, frequency analysis, autocorrelation analysis, F-K analysis and so on. We can estimate the quality of seismic data based on the quantitative process. We can also use a simple method to get the three instantaneous attributes if we transform seismic data to complex domain. On-site seismic data can be analyzed and estimated by applicable attributes (e.g. instantaneous amplitude can be used to find out abnormal trace; quality control personnel can analyze the propagation of the wave field by instantaneous phase because both strong and weak signal can be displayed on the instantaneous phase diagram; Instantaneous frequency could reflect the frequency values of every moment, it can estimate the distribution of on-site seismic data's frequency characteristics quantitative). Transforming seismic data to complex domain and analyzing the instantaneous attribute of on-site seismic data can help us recognize the feature of on-site seismic data quickly.

From the above, rapid extraction of three instantaneous attributes can improve the efficiency of monitoring the field construction.