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Optimum design method of seismic survey line by utilizing remote sensing information

A line surveying and remote sensing technology, which is applied in the field of oil field seismic exploration and remote sensing, can solve the problems of poor signal-to-noise ratio and achieve the effects of improving signal-to-noise ratio, improving feasibility, and improving excitation and receiving conditions

Inactive Publication Date: 2011-05-04
PETROCHINA CO LTD
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Problems solved by technology

These methods make the seismic line design method have limitations in the adjustment of seismic line layout in complex surface earthquake engineering, survey line implementability, excitation and reception conditions, and poor signal-to-noise ratio

Method used

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  • Optimum design method of seismic survey line by utilizing remote sensing information
  • Optimum design method of seismic survey line by utilizing remote sensing information
  • Optimum design method of seismic survey line by utilizing remote sensing information

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Embodiment Construction

[0043] The large-scale ortho-remote remote sensing images collected on the spot and processed by orthorectification have high positioning accuracy and can reflect surface objects within 1 meter. They can be used to intuitively understand ground excitation and reception conditions and implementable conditions, such as: lowering the altitude The DEM extracted by using the remote sensing stereo image pair can reflect the elevation attribute more accurately, and the more accurate digital slope model can be extracted through it. The invention utilizes the remote sensing information in the complex surface seismic line deployment in the deployment of the survey line to solve the optimal design method of the seismic survey line.

[0044] The present invention adopts following steps to realize:

[0045] 1. To collect remote sensing images with a resolution of more than 5 meters, first use the 1:50,000 topographic map to select control points for pre-correction, and then select GCPs bas...

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Abstract

The invention relates to an optimum design method of a seismic survey line by utilizing remote sensing information for arranging and determining an optimum position according to a survey line theory at an early stage of seismic construction. The method comprises the following steps of: firstly, acquiring remote sensing images, and fusing the remote sensing images by utilizing a field actual measurement control point; acquiring more than one selectable survey line according to mobile limiting conditions and seismic acquisition parameters; generating an evaluation point set according to integral track pitches to obtain various evaluation factor index values; normalizing the evaluation factor index values; calculating the goodness of the integral survey lines in a weighting way; sequencing; and selecting a straight survey line with maximal goodness for construction. The invention can meet the requirements for selecting a better survey line position under the condition of detecting an underground target, overcome the defect of limitation on the arrangement and the regulation of seismic survey lines in complex surficial seismic engineering, enhance the implementation of the survey lines, improve the exciting and receiving conditions and increase the signal to noise ratio.

Description

technical field [0001] The invention relates to oil field seismic exploration and remote sensing technology, and is a seismic line optimization design method using remote sensing information to determine the optimal position according to line theory deployment in the early stage of seismic construction. Background technique [0002] Seismic exploration first lays out seismic survey lines under the condition of satisfying the detection of underground targets, and selects a better survey line position according to the surface geomorphology and geological conditions. When petroleum seismic exploration encounters complex geomorphic conditions, due to the difficulty in seismic data acquisition and poor data quality in complex surface areas, static correction of seismic data is difficult, signal-to-noise ratio is low, and velocity analysis and imaging are even more difficult. At present, the survey line is mainly deployed according to the theory of seismic exploration target desig...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28
Inventor 叶勇张友焱胡艳
Owner PETROCHINA CO LTD
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