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Application of Multi-factor True Three-dimensional Geological Information System to Research of Oil-and Gas-conducted Structures |
LIU Yanjun JIN Lifang |
(Institute of Remote Sensing and GIS,Peking University,Beijing100871) |
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Abstract Due to deficiency and interpretative uncertainty of deep geological data, the correct
application of associated multi-factor information is especially important for the research of
oil-and gas-conducted structures. The key to analyze multi-factor information quantita-
tively and comprehensively to obtain correct conclusions is to apply multi-factor true three-
dimensional geological information system(MT3DGIS). Using this system, we register
and make correlation analysis between variables from remote sensing, aeromagnetic, and
gamma-ray spectrum data, and make 3D solid visualization of stratigraphic data. Through
these analyses mentioned above, we find that under depth of 3 500 m, two NE extended
basins were controlled by a NW extended structure. This structure was large-scale deep
permeable structure with multiphase tectonic activity. So, we suggest that this structure
is a oil-and gas-conducted structure. This inference is coincident with deep seismic sound-
ing. The occurrence of a large gas field above this structure also supports this. Our con-
clusion has been adapted by relevant institutions. The application effect of this system in-
dicates importance of MT3DGIS in research of deep geological information.
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Received: 20 January 1997
Published: 12 April 2012
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