Method for comprehensively predicting earthquake in sandstone uranium ore

A comprehensive prediction, sandstone-type technology, applied in seismic signal processing and other directions, can solve the problems of not meeting the accuracy requirements, high cost, and long cycle

Active Publication Date: 2018-01-12
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

Conventional geological prediction technology mainly uses geological survey and drilling data to make predictions. The disadvantages are that the cost of prediction is high and the cycle is long; geophysical methods such as geochemical exploration, radioactive geophysical prospecting, and electromagnetic methods are used for prediction and evaluation, and the results often fail to reach Accuracy requirements and poor results; however, seismic exploration technology has good detection accuracy for sandstone-type uranium ore-forming environment, and the use of seismic technology to comprehensively predict sandstone-type uranium deposits has a good prospect

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  • Method for comprehensively predicting earthquake in sandstone uranium ore
  • Method for comprehensively predicting earthquake in sandstone uranium ore
  • Method for comprehensively predicting earthquake in sandstone uranium ore

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Embodiment Construction

[0070] The technical solutions of the present invention will be described in detail below in conjunction with specific embodiments.

[0071] The present invention is a sandstone-type uranium mine earthquake comprehensive prediction method, the method comprises the following steps:

[0072] (1) In the study area, collect a set of 3D seismic pure wave data of sandstone-type uranium deposits;

[0073] The field 3D seismic data is collected by the seismograph, and the field 3D seismic data is sequentially processed to obtain the 3D seismic pure wave data;

[0074] The process of processing 3D seismic data in the field is sequentially performing static correction, denoising, amplitude compensation, deconvolution, dynamic correction stacking, and migration processing.

[0075] (2) Using the model-based inversion method to invert and calculate the 3D seismic pure wave data in step (1) to obtain a 3D wave impedance data volume, and then calculate a 3D lithology data volume;

[0076]...

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Abstract

The invention belongs to the technical field of comprehensive prediction methods of earthquake in uranium ore, in particular to a method for comprehensively predicting earthquake in sandstone uraniumore. A seismic wave impedance inversion method is used to reversely calculate distribution of sand to obtain sand content information of a target formation directly related to uranium ore formation; wave impedance information of the target formation is converted into porosity information related to ore forming action via the conversion relation or experiential conversion relation of drilling datastatistics; a three-dimensional seismic data body is finally used to extract sensitive seismic attribute information related to a uranium ore forming environment; by comprehensively analyzing and studying and predicating the uranium ore forming potential of a work area via the three types of information, it is possible to quickly and effectively predict the development range of a sandstone uraniumore target reservoir.

Description

technical field [0001] The invention belongs to the technical field of comprehensive seismic prediction methods for uranium deposits, and in particular relates to a comprehensive seismic prediction method for sandstone-type uranium deposits. Background technique [0002] Prediction and evaluation of sandstone-type uranium deposits is a key task in the exploration of sandstone-type uranium deposits. Conventional geological prediction technology mainly uses geological survey and drilling data to make predictions. The disadvantages are that the cost of prediction is high and the cycle is long; geophysical methods such as geochemical exploration, radioactive geophysical prospecting, and electromagnetic methods are used for prediction and evaluation, and the results often fail to reach Accuracy is required and the effect is not good; however, seismic exploration technology has good detection accuracy for sandstone-type uranium ore-forming environment, and the use of seismic techn...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G01V1/30
Inventor 吴曲波黄伟传
Owner BEIJING RES INST OF URANIUM GEOLOGY
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