CN104865595A - Shot point laying method based on unconsolidated layer identification - Google Patents

Abstract

The invention relates to a method for laying out shot and checkpoints, in particular to a method for identifying and laying out shotpoints based on a low-velocity zone. Analyze the surface lithology and slope aspect in the area, improve the efficiency and accuracy of shot point deployment and control, and identify and deploy shot points based on the low-speed zone. The technical solution adopted is to obtain satellite image data and remote sensing data in the shot point area; Mark the coordinates of the theoretical shot point on the satellite image of the shot point area; use the acquired satellite image and remote sensing data to divide the surface features of the shot point area, determine the surface lithology of the shot point area, and determine the slope and slope of the shot point area Observing the slope aspect and surface lithology of the theoretical shot point coordinates, re-determining the actual shot point coordinates in the shot point survey line and the vertical direction of the survey line; , Check point deployment and control.

Description

A method of identifying and laying shot points based on the low-velocity zone

technical field

The invention relates to a method for laying out shot and checkpoints, in particular to a method for identifying and laying out shotpoints based on a low-velocity zone.

Background technique

At present, in oil exploration, refined target design is mostly adopted, using high-precision satellite images, technicians conduct visual analysis based on the terrain and landforms on the satellite images, and carry out point-by-point design of artillery inspection points, combined with field surveys , to more accurately determine the reasonable location of the artillery inspection point.

Our country has a vast territory, and this method is also used in the deployment and control of artillery inspection points in desert and mountainous terrain. Although this method is easy to learn and convenient to modify the attributes of landmarks, it is inefficient and only suitable for occasions where there are few control points. In the case of many control points, it is troublesome to use this method and consumes a lot of manpower and material resources. , and the precision is low.

Contents of the invention

The present invention overcomes the deficiencies in the prior art, and the technical problem to be solved is to provide a simple and convenient way to analyze the surface lithology and slope aspect of the shot point area by using satellite images and remote sensing data, so as to improve the shot point deployment control efficiency and The method of deployment and control accuracy is based on the identification and deployment of shot points based on the low-speed zone.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a method for identifying and laying shot points based on a low-velocity zone, comprising:

Obtain satellite image data and remote sensing data of the shot point area;

Marking the coordinates of the theoretical shot point on the satellite imagery of the shot point area;

Use the acquired satellite images and remote sensing data to divide the shot point area and determine the surface lithology of the shot point area. At the same time, establish a digital elevation model for the shot point area, use the D8 algorithm to analyze the shot point area, and determine the shot point. the slope and aspect of the area;

Observe the slope aspect and surface lithology of the theoretical shot point coordinates, and re-determine the actual shot point coordinates in the shot point survey line and the vertical direction of the survey line.

The acquired satellite images and remote sensing data are used to divide the shot point area by supervised classification method, and the distribution boundaries of different ground objects are extracted, and the surface lithology of the shot point area is divided.

Observing the slope aspect and surface lithology of the theoretical shot point coordinates, looking for a coordinate with a slope less than 15° and a surface lithology elastic wave field velocity greater than 600m/s on the shot point survey line and the vertical direction of the survey line, and re-determined Actual shot point coordinates.

Compared with the prior art, the present invention has the beneficial effects that: the present invention is simple and convenient, uses satellite images and remote sensing data to analyze the surface lithology and slope aspect of the shot point area, determines the actual shot point coordinates, and saves The time and cost of point and receiver point layout can be improved, and the efficiency and accuracy of shot point deployment and control can be improved; at the same time, it can be used in a wide range, providing help for field point measurement, and greatly facilitating exploration and construction.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is a schematic diagram of theoretical shot point coordinates in the present invention.

Fig. 2 is a schematic diagram on the left side of the actual shot point in the present invention.

Detailed ways

A method for identifying and laying out shot points based on a low-velocity zone, characterized in that: comprising:

Obtain satellite image data and remote sensing data of the shot point area;

Marking the coordinates of the theoretical shot point on the satellite imagery of the shot point area;

Use the acquired satellite images and remote sensing data to divide the shot point area and determine the surface lithology of the shot point area. At the same time, establish a digital elevation model for the shot point area, use the D8 algorithm to analyze the shot point area, and determine the shot point. the slope and aspect of the area;

Observe the slope aspect and surface lithology of the theoretical shot point coordinates, and re-determine the actual shot point coordinates in the shot point survey line and the vertical direction of the survey line.

The acquired satellite images and remote sensing data are used to divide the shot point area by supervised classification method, and the distribution boundaries of different ground objects are extracted, and the surface lithology of the shot point area is divided.

Observing the slope aspect and surface lithology of the theoretical shot point coordinates, looking for a coordinate with a slope less than 15° and a surface lithology elastic wave field velocity greater than 600m/s on the shot point survey line and the vertical direction of the survey line, and re-determined Actual shot point coordinates.

Utilize existing technology in the present invention to obtain the satellite image of shot point area and remote sensing data, and mark the coordinates of theoretical shot point in satellite image, position as shown in " o " among Fig. 1, a plurality of shots on a straight line The point coordinates form the shot point observation line.

Then use the supervised classification method to classify the satellite images, extract the distribution boundaries of different objects, and determine the surface lithology of different objects, such as: gravel, carbonatite or desert, etc., and mark the surface lithology with obvious differences ; Establish the digital elevation model of the shot point area by combining remote sensing data with satellite images, use the D8 algorithm to analyze the slope and aspect of the shot point area, determine the steepest slope of the shot point area, and mark the slope from large to small; view Slope aspect and surface lithology of the theoretical shot point coordinates, re-determine the actual shot point coordinates along the observation line and the vertical direction of the observation line, and determine the principle to find out that the slope is less than 15° according to the existing lithology and elastic wave comparison table , the coordinates where the surface lithology elastic wave field velocity is greater than 600m/s are taken as the actual shot point coordinates, as shown in Figure 2; this method of shot point deployment and control is simple and convenient, with high shot point deployment control efficiency and high accuracy , suitable for a wider range.

The embodiments of the invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and can also be made without departing from the gist of the present invention within the scope of knowledge of those of ordinary skill in the art. Various changes should also be regarded as the protection scope of the present invention.

Claims (3)

1. lay a method for shot point based on low velocity layer identification, it is characterized in that: comprising:

Obtain satellite image data and the remotely-sensed data in shot point region;

The coordinate of markedness theory shot point on the satellite image in shot point region;

The satellite image of acquisition and remotely-sensed data is utilized to carry out atural object division to shot point region, determine the Lithology in shot point region, digital elevation model is set up to this shot point region simultaneously, adopt D8 algorithm to analyze shot point region, determine the gradient and the slope aspect in shot point region;

The gradient slope aspect of Observation Theory shot point coordinate and Lithology, on the shot point line of observation and line of observation vertical direction, redefine actual shot point coordinate.

2. a kind of method laying shot point based on low velocity layer identification according to claim 1, it is characterized in that: the described satellite image of acquisition and the remotely-sensed data of utilizing carries out atural object division by supervised classification method to shot point region, different atural object extracts distributing edge, divides the Lithology in shot point region.

3. a kind of method laying shot point based on low velocity layer identification according to claim 1, it is characterized in that: the gradient slope aspect of described Observation Theory shot point coordinate and Lithology, the shot point line of observation and line of observation vertical direction find the gradient and is less than 15 °, Lithology elastic wave field speed is greater than 6 (), and (coordinate of m/s redefines actual shot point coordinate.