Oil gas exploration method based on hyperspectral remote sensing and electromagnetic exploration

Abstract

The invention discloses an oil gas exploration method based on the hyperspectral and ultralow frequency electromagnetic exploration technology. The oil gas exploration method comprises the following steps of collecting existing geological data of an explored area, determining oil gas alteration index minerals of the explored area according to the collected data and the oil gas hydrocarbon leakage principle, obtaining and carrying out preprocessing on a hyperspectral remote sensing image of a vegetation-free area and a hyperspectral remote sensing image of a vegetation area of the explored area, extracting hyperspectral information of the oil gas alteration index minerals of the vegetation-free area and the vegetation area, obtaining the comprehensive distribution area of the oil gas alteration index minerals according to the extraction result, carrying out ultralow frequency electromagnetic exploration on a potential oil gas buried area, obtaining ultralow frequency exploration data, processing the obtained ultralow frequency exploration data, extracting and analyzing oil gas information, determining an oil gas exploration target area according to the oil gas information, the existing geological data and the earth surface oil gas alteration information, collecting the soil samples of the exploration target area outdoors, carrying out spectrum testing, acidolysis hydrocarbon testing and analysis, and mineral component analysis of the soil samples, and qualitatively obtaining the consistency of the actually measured soil mineral components in the researched area and the extraction result of the hyperspectral remote sensing information, thereby providing a powerful evidence for verifying the exploration target area.

Description

technical field [0001] The invention relates to the technical field of oil and gas resource exploration, in particular to an oil and gas exploration method that comprehensively utilizes hyperspectral remote sensing and ultra-low frequency electromagnetic detection technologies. Background technique [0002] With the rapid development of the economy, the contradiction between my country's energy demand and supply has intensified, and the shortage of oil and gas resources has become one of the main bottlenecks restricting the development of the domestic economy. On the other hand, the current domestic and foreign oil and gas exploration forms have undergone new changes, and complex burial conditions and subtle oil and gas reservoirs have become the main areas for oil and gas exploration. Such reservoirs usually have harsher geological conditions and higher exploration costs. In this case, it is very necessary to make full use of the advantages of non-seismic exploration metho...

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Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a method for oil and gas exploration to overcome the defects of difficult exploration due to the influence of complex terrain and vegetation in the prior art, and to verify its accuracy through experiments