Three-dimensional Seismic Data Technology Research

This thesis puts emphasis on the 3-D Non-seismic data Cube Technique. That is, the processing and interpretation method limited in the data of telluric electromagnetic prospecting and gravity-magnetic method exploration.1. Telluric electromagnetic prospecting dataThe pre-processed rude (Frequency domain) or inversed (Space domain) MT data are changed into 3-D grid data at first. And then they are processed through mining abnormalities, such as ED, filter and coherency processing method, which improve the MT data interpretation precision, reduce the interpretation difficulty, shorten the interpretation period and lessen the artificial factor, multi-explanation and randomness. All of that make the interpreter interpret the complex geological abnormality more objectively, reasonably, reliably and stably than before.2. Gravity-magnetic potential field exploration dataThere is no "cube" (i.e. depth) but only "surface" information in the gravity-magnetic method exploration data achieved on the ground. The data contain various frequencies. Due to the earth capable of lowpass filter, the lower frequency exploration data reflects the deeper information. It is useful for getting hold of the gravity and magnetic potential field abnormality to apply the wavelet multi-resolution decomposing to gravity and magnetic potential field exploration "surface" data. So, it is needed to decompose the data into "cube".The study based on the 3-D non-seismic data cube technique provides a reliable assistant method and an interpretation platform.