KR101614135B1 - Method for verifying modelled reflecting interface using elastic wave and system therof - Google Patents

Abstract

A method of verifying a reflection surface modeled using an acoustic wave search signal according to the present invention is a method of matching a coordinate information in which an acoustic wave is generated and a coordinate information of an elastic wave signal reflected back to a seabed layer and generating an elastic wave A first step of forming a base map by dividing a track line of a marine probe into a plurality of regions and a horizon mapping based on height information and coordinate information of the seismic wave signal, A second step of modeling a reflection plane made up of a plurality of horizons formed along the track line by the horizon mapping and a second step of selecting one of a plurality of areas classified on the base map A horizon-tie, and a third step of verifying the horizon formed in the set horizon tie And that is characterized.

Description

Field of the Invention < RTI ID = 0.0 > [0001] < / RTI > The present invention relates to a method for verifying a modeled reflection surface using a seismic wave signal,

The present invention relates to a method and system for verifying a reflection surface modeled using an acoustic wave signal, and more particularly, to a method and system for verifying a reflection surface modeled using an acoustic wave signal, The present invention relates to a method and a system for verifying a modeled reflection surface using a seismic exploration signal that can verify a modeled reflection surface so as to confirm the termination pattern and accurately confirm the deposition process of the stratum.

In general, seismic surveys are research methods that generate seismic waves such as sound waves on the sea or land and collect the seismic signals reflected on the ground layer to infer the environment inside the layer. For example, MRI (Magnetic Resonance Imaging As with the ability to look into the human body through the test, seismic surveys are an exploration method that allows you to look inside the strata.

Seismic exploration data can be acquired from marine or terrestrial data, and then processed through data processing, using geological knowledge to identify when and how sediments were deposited. Various methods can be applied to the analysis of seismic data, but seismic stratigraphy is used as a commonly used method.

These seismic stratigraphic analyzes can be used for petroleum exploration, for example, in the form of a toplap, an onap, a downlap, or the like, from the seismic exploration data obtained from the ocean, And truncation are used to find the unconformity of the strata, and the stratification process of the strata can be confirmed centering on the unconformity.

For example, Japanese Patent Application Laid-Open No. 10-066063 relates to a multi-channel seawater seismic exploration apparatus and method using an automated subsurface plate, in which a constant A satellite position measuring device fixedly mounted at the head of the probe and operable to record a position and a track of the probe, an elastic wave recorder fixedly installed on a line of the probe and digitally recording a reflection signal, An automatic buoy plate fixedly installed on the side of the probe, an acoustic echo sounder composed of a single channel, and a hydrophone installed on the stern of the probe and equipped with a sound transmitter and a wireless transmitter, Technology is disclosed.

However, in the above conventional technique, only the information of the seabed ground can be provided. As a technique for verifying the modeled reflection surface in order to accurately acquire the information on the termination type of the reflection surface, that is, Has not been disclosed.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the problems described above, and it is an object of the present invention to provide a method and apparatus for verifying whether or not a modeled reflection surface is normal so as to generate seismic waves in the seabed ground layer and to confirm the deposition process of the ground layer from the reflected elastic signal A method for verifying a modeled reflection surface using a seismic wave signal and a system therefor.

However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided a method of verifying a reflective surface modeled using an acoustic wave signal according to an exemplary embodiment of the present invention, which comprises the steps of generating coordinate information of an acoustic wave generated by an acoustic wave and coordinate information of an elastic wave signal A first step of forming a base map by dividing a track line of a marine probe line which matches with a sea floor and generating seismic waves toward a seafloor layer into a plurality of areas; A second step of horizon mapping based on the information and a second step of modeling a reflection surface composed of a plurality of horizons formed along the track line by the horizon mapping, One of the regions is selected as the horizon-tie, and the formed horizon tie is formed In that it comprises a third step of verifying the Horizon characterized.

In the third step, the horizon tie-setting step may be performed in a direction perpendicular to the sea surface at a position corresponding to the track line, in the third step. In the method of verifying the reflection surface modeled using the seismic wave signal according to the present invention, A step of setting a first vertical section on the reflecting surface, a step of setting a second vertical section in contact with the first vertical section, and a third vertical section in contact with the second vertical section, And setting a fourth vertical cross section adjacent to the third vertical cross section and adjacent to the second vertical cross section.

A method of verifying a modeled reflection surface using an acoustic wave search signal according to the present invention is characterized in that a horizon verification step formed in the horizon tie set in the third step is performed by using a plurality of horizons included in the first vertical cross- The method of claim 1, further comprising the steps of: selecting a first horizon; selecting a second horizon having one end in contact with an end of the first horizon at the second vertical cross section in contact with the first vertical cross- Selecting a third horizon having one end in contact with an end of the second horizon in a vertical section, selecting a fourth horizon having one end in contact with the end of the third horizon in the fourth vertical section in contact with the third vertical section And comparing the height difference between the one end of the first horizon and the end of the fourth horizon, Wherein the step of determining whether the normal horizon is to be performed includes determining whether the height difference between the one end of the first horizon and the end of the fourth horizon is within a set value, It is determined as a horizon.

A method for verifying a modeled reflection surface using an acoustic wave search signal according to the present invention is characterized in that the set value is defined in units of time.

The verification system for verifying the reflection surface modeled using the seismic wave search signal according to the present invention is characterized in that the coordinate information in which the elastic wave is generated and the coordinate information of the elastic wave signal reflected back to the seabed layer are matched with each other, A base map generation unit for generating a base map by dividing a track line of a generated ocean probe into a plurality of regions; a base map generation unit for generating a horizon map based on the height information and the coordinate information of the seismic wave signal; mapping a plurality of horizon maps to horizon maps and modeling a plurality of horizons formed on the horizon by the horizon mapping; A horizon tie setting unit for selecting an area and setting it as a horizon-tie, To verify the horizon to verify the horizon formed in the set by Horizon tie characterized in that it comprises a.

Further, the verification system for verifying the reflection surface modeled using the seismic wave signal according to the present invention may further comprise: an elastic wave generation module for generating an elastic wave on the seabed ground layer; A module for matching the coordinate information of the elastic wave signal generated by the elastic wave generating module with the coordinate information of the elastic wave signal received by the elastic wave signal receiving module, And a base map generation module for forming a base map by dividing the base map into regions.

The verification system for verifying the reflection surface modeled using the seismic wave signal according to the present invention is characterized in that the horizon tie set by the horizon tie setting unit is perpendicular to the sea surface at a position corresponding to the track line A second vertical section in contact with the first vertical section, a third vertical section in contact with the second vertical section and adjacent to the first vertical section, and a second vertical section in contact with the second vertical section, And a fourth vertical cross-section adjacent to the second vertical cross-section.

In addition, the verification system for verifying the modeled reflection surface using the seismic wave signal according to the present invention is characterized in that the horizon verification unit selects a first horizon among a plurality of horizons included in the first vertical section, Selecting a second horizon having one end in contact with an end of the first horizon in a vertical section, selecting a third horizon having one end in contact with an end of the second horizon in the third vertical section, A horizon comparison module for comparing the height difference between the first horizon and the end of the fourth horizon and a horizon comparison module for comparing the height difference between the first horizon and the fourth horizon, Horizon Verification to determine whether the first to fourth horizons are normal based on the height difference Module, wherein the horizon verification module determines that the height difference between the one end of the first horizon and the end of the fourth horizon is within a predetermined value.

According to the method and system for verifying the reflection surface modeled using the seismic wave signal of the present invention, it is possible to generate seismic waves from the seabed ground layer and to verify whether the reflective surface modeled from the reflected elastic wave signal is normal, It is possible to precisely define the termination type for the unconformity, and it is advantageous to accurately confirm the deposition process of the strata.

1 is a block diagram schematically showing the configuration of a reflection surface verification system modeled using an acoustic wave search signal according to the present invention.
FIG. 2 is a block diagram showing the structure of a base map generation unit constituting a reflection surface verification system according to the present invention.
3 is an exemplary diagram illustrating a base map generated through a base map generator according to the present invention.
4 is a block diagram showing the configuration of a reflection plane modeling unit constituting a reflection plane verification system according to the present invention.
5 is an exemplary view showing a plurality of reflection surfaces generated through the reflection surface modeling unit of the present invention.
FIG. 6 is an exemplary diagram illustrating a horizon tie set through the horizon tie setting unit of the present invention.
Fig. 7 is an exemplary diagram illustrating an example of a horizon setting.
Fig. 8 is an exemplary view showing an example of a horizon tie.
FIG. 9 is a block diagram showing a configuration of a horizon verification unit constituting a reflection surface verification system according to the present invention.
Figs. 10A to 10C are exemplary diagrams showing the termination pattern of a mismatched surface of a ground layer. Fig.
11 is a flowchart showing a method of verifying a reflective surface modeled using an acoustic wave probe signal according to the present invention.
12 is a flowchart showing a method of determining a termination type of a reflective surface modeled using an acoustic wave probe signal according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ",or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

FIG. 1 is a block diagram schematically showing the configuration of a reflection plane verification system modeled using an acoustic wave search signal according to the present invention. FIG. 2 is a block diagram showing a structure of a base map generation unit constituting a reflection plane verification system. FIG. 3 is an exemplary diagram illustrating a base map generated through the base map generation unit. FIG.

The reflection plane verification system 1 may include a base map generation unit 10, a reflection plane modeling unit 20, a horizon tie setting unit 30, and a horizon verification unit 40.

2, the base map generating section 10 includes an elastic wave generating module 110 for generating an elastic wave in the seabed ground layer, and an elastic wave generating module 110 for reflecting the elastic wave generated from the elastic wave generating module 110, And an elastic wave signal receiving module 120 for receiving the elastic wave signal.

3, the base map generation unit 10 matches the coordinate information of the acoustic wave generated by the acoustic wave generation module 110 with the coordinate information of the acoustic wave signal received by the acoustic wave signal reception module 120, And a base map generation module 130 for forming a base map by dividing a track line into a plurality of regions as a movement path of a probe line (not shown).

FIG. 4 is a block diagram of a reflection plane modeling unit, which is capable of modeling a reflection plane in a three-dimensional space based on a block road, a height information of an elastic wave signal, and coordinate information, Horizon mapping is performed on the basis of the height information and the coordinate information of the elastic wave signal received through the elastic wave signal receiving module 120, and as shown by the red or blue line in FIG. 5, May include a reflective surface modeling module 210 that models a reflective surface that includes a plurality of horizons (e.g., hypothetical lines that represent reflective surfaces) along the lines.

Since each point of each horizon has coordinate information and height information, horizons can be expressed in a plane having an oblique direction in three-dimensional space.

In addition, the reflection plane modeling unit 20 includes a horizon selection module 220 for selecting two horizons facing each other among a plurality of horizons, and one of two horizons selected by the horizon selection module 220 as a reference line And a horizon decision module 230 for setting the other one as a target line and a slope of the target line with respect to the reference line set by the horizon decision module 230, (E.g., a mismatch occurs in the downwrap, onrap, toprap / truncation) determined by the correlation determination module 240 and the correlation determination module 240 that determine the correlation And a correlation display module 250 for displaying on the track line on the base map.

6 to 8 illustrate examples of a horizon tie set through the horizon tie setting unit of the present invention. As shown in Fig. 6, the horizon tie setting unit 30 includes a base map data base 10 A horizon-tie can be selected from any one of the track lines divided into a plurality of regions on the base map generated through the base map.

FIG. 7 exemplarily shows a section of a horizon tie area on the reflection surface. A certain area of the reflection surface generated through the reflection surface modeling unit 20 through the horizon tie setting unit 30 can be set.

8, the horizon tie 300 set by the horizon tie setting unit 30 has a first vertical section 310, a second vertical section 310, and a second vertical section 313 on the reflecting surface in a direction perpendicular to the sea surface at a position corresponding to the track line, A second vertical section 320 contacting the first vertical section 310 and a third vertical section 330 abutting the first vertical section 310 in contact with the second vertical section 320, And a fourth vertical section 340 abutting the vertical section 330 and adjacent to the second vertical section 320.

9 and 9, in the horizon setting module 410 constituting the horizon verifying unit 40, the horizontal direction of the horizontal cross section 310 of the horizon tie 300 The user can select the first horizon 311 among the included horizons 311 and select the second horizon 321 which is in contact with the end of the first horizon 311 at the second vertical cross section 320.

In the third vertical section 330, the third horizon 331, which is in contact with one end of the second horizon 321, is selected. Then, the fourth horizontal section 340 is again positioned at the end of the third horizon 331 And the fourth horizon 441, which is in contact with one end.

The horizon comparison module 420 compares the difference in height between one end of the first horizon 311 set through the horizon setting module 410 and the end of the fourth horizon 341, for example, the time difference of the received acoustic wave signal .

In the horizon verification module 430, when the height difference between the end of the first horizon 311 and the end of the fourth horizon 341 is within a set value, for example, within 10 msec, the normal horizon can be determined.

Therefore, through the verification of Horizon, it can be confirmed whether or not the reflective surface modeled through the reflective surface modeling unit 20 has been normally modeled.

When the horizon set through the horizon verification unit 40 is determined to be normal, the reflection plane modeling unit 20 selects two horizons that are in contact with each other among the plurality of horizons included in the reflection plane modeled by the horizon selection module 220 , One of the two horizons selected by the horizon selection module 230 may be set as a reference line, and the other one may be set as a target line.

Thereafter, the rotation angle in the clockwise direction can be measured as the slope of the target line with respect to the reference line set through the correlation determination module 240.

10 (a) to (c) illustrate examples of the termination of the mismatch surface of the stratum according to the present invention. In the correlation determination module 240, and can be defined as onlap, downlap, toplap, or truncation.

For example, as shown in Fig. 10 (a), when the object line terminates on the reference line and the angle [beta] between the object line and the horizontal plane is smaller than the angle [alpha] between the reference line and the horizontal plane, The termination relationship of the portion in contact with the target line and the reference line, that is, the termination form, can be defined as the ONLAP.

10 (b), when the target line terminates on the reference line and the angle beta between the target line and the horizontal plane is larger than the angle alpha between the reference line and the horizontal plane, The termination form of the tangent portion of the reference line can be defined as down-rap.

10 (c), when the target line terminates below the reference line, the termination form of the portion in contact with the target line and the reference line can be defined as a toprap or a truncation.

In the correlation display module 250, information on the correlation of the horizon determined through the correlation determination module 240, for example, whether the mismatch plane is a downlap, an onlap, or a toprap / truncation, On the track line on the base map.

11 is a flowchart illustrating a method of verifying a modeled reflection surface using an acoustic wave search signal according to the present invention. Referring to FIGS. 1 to 9 and 11, a method of verifying a reflected surface modeled using an acoustic wave search signal according to the present invention includes the steps of: And generates a base map by dividing a track line into a plurality of regions as a movement path of a marine probe line that generates seismic waves toward the seafloor layer (S101).

Thereafter, the base map generation unit 20 performs horizon mapping based on the height information and the coordinate information in the received elastic wave signal (S102), and outputs the track line on the base map generated by the performed horizon mapping And a plurality of horizons formed on the reflection surface are modeled (S103).

Next, as shown in FIG. 6 to FIG. 8, by selecting one of a plurality of regions divided on the base map through the horizon tie setting unit 30, Setting a first vertical section 310 on the reflective surface in a vertical direction and setting a second vertical section 320 contacting the first vertical section 310 and contacting the second vertical section 320 while contacting the second vertical section 320, By setting the third vertical section 330 adjacent to the vertical section 310 and setting the fourth vertical section 340 adjacent to the second vertical section 320 while touching the third vertical section 330, (Step S104).

Thereafter, the horizon verification unit 40 verifies whether the horizon formed in the horizon tie set in the horizon tie setting unit 30 is normal (S105).

The method of verifying the horizon through the horizon verifying unit 40 may include selecting the first horizon 311 among the plurality of horizons included in the first vertical cross- A third horizon 331 with one end in contact with the end of the second horizon 321 is selected in the third vertical section 330 and a second horizon 331 in which the one end is in contact with the end of the second horizon 321 is selected , And selects the fourth horizon 341 which is in contact with the end of the third horizon 331 at one end in the fourth vertical section 340 in succession.

Next, the height difference between the one end of the selected first horizon 311 and the end of the fourth horizon 341 is compared with the time difference of the received acoustic wave signal, for example, 10msec), it is determined to be a normal horizon.

If the normal horizon is determined through the horizon verification unit 40, the reflection plane modeling unit 20 determines the termination type for the reflection plane (S106).

As shown in Fig. 12, the determination of the termination type through the reflection surface modeling unit 20 is based on the height information of the received elastic wave signal (height information of the layer) and the coordinate information on the modeled reflecting surface And models a reflective surface including a plurality of horizons along a track line (S104).

Next, through the horizon selection module 220, two horizons with one end or end of the plurality of horizons touching each other are selected (S201). The horizon selection module 220 can confirm whether the horizon selection module 220 is in contact with each other through, for example, a horizon including height information and coordinate information.

Thereafter, the horizon determination module 230 sets one of the selected two horizons as a reference line and sets the other as a target line (S202), and the correlation determination module 240 determines whether the inclination of the target line with respect to the reference line (S203). When the target line terminates on the reference line and the angle [beta] between the target line and the horizontal plane is smaller than the angle [alpha] between the reference line and the horizontal plane, And if the angle between the target line and the horizontal plane is larger than the angle alpha between the reference line and the horizontal plane by a down wrap and if the target line terminates below the reference line, The correlation for the two horizons is determined (S204).

Then, in the correlation display module 250, information on the correlation of the horizon, for example, whether the mismatch surface on the reflection surface is down wrap, warm wrap or top wrap / truncation, is displayed on the track line on the base map (S205) .

As described above, according to the present invention, the reflection plane is modeled from the acoustic wave signal and the modeled reflection plane is verified, thereby making it possible to confirm the deposition process of the layer more accurately.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Reflection surface verification system
10: base map generation unit
20: Reflecting Surface Modeling Unit
30: Horizon tie setting section
40: Horizon Verification Department
410: Horizon selection module
420: Horizon comparison module
430: Horizon Verification Module

Claims (9)

A track line of an oceanic probe line that generates seismic waves toward the seabed layer is divided into a plurality of regions and a base map is generated by dividing a track line of an oceanic probe line into a plurality of regions by matching the coordinate information in which the elastic waves are generated and the coordinate information of the elastic- a first step of forming a base map;
A second step of performing horizon mapping based on the height information and the coordinate information of the elastic wave signal and modeling a plurality of horizons formed along the track line by the horizon mapping; And
And a third step of selecting one of a plurality of regions divided on the base map to set a horizon-tie and verifying a horizon formed in the horizon tie,
In the third step, the horizon tie-
Setting a first vertical section on the reflecting surface in a direction perpendicular to the sea level at a position corresponding to the track line;
Setting a second vertical cross-section adjacent to the first vertical cross-section;
Setting a third vertical cross-section adjacent to the second vertical cross-section and adjacent to the first vertical cross-section; And
And setting a fourth vertical cross section adjacent to the third vertical cross section and adjacent to the second vertical cross section,
In the horizon verification step formed in the horizon tie set in the third step,
Selecting a first horizon among a plurality of horizons included in the first vertical section;
Selecting a second horizon having one end in contact with an end of the first horizon in the second vertical cross section in contact with the first vertical cross section;
Selecting a third horizon having one end in contact with an end of the second horizon in the third vertical cross section in contact with the second vertical cross section;
Selecting a fourth horizon whose one end is in contact with an end of the third horizon at the fourth vertical cross section that is in contact with the third vertical cross section; And
Comparing the height difference between the one end of the selected first horizon and the end of the fourth horizon to determine whether the normal horizon is present,
The process of determining whether or not the normal horizon is performed,
Wherein the normal horizon is determined with respect to the horizon formed on the reflection surface when the height difference between the one end of the first horizon and the end of the fourth horizon is within a set value, How to verify.
delete delete The method according to claim 1,
Wherein the set value is a time difference calculated from a height difference between one end of the first horizon and a tip end of the fourth horizon, and verifying the modeled reflection surface using the seismic wave signal.
The coordinate information of the probe line that generated the elastic wave is matched with the coordinate information of the elastic wave signal reflected back to the seabed layer and the track line of the oceanic probe line that generates the elastic wave toward the seafloor layer is divided into a plurality of areas A base map generation unit for forming a base map;
A horizon mapping based on height information and coordinate information of the elastic wave signal and modeling a reflection surface composed of a plurality of horizons formed along the track line by the horizon mapping, ;
A horizon tie-setting unit for selecting one of a plurality of regions divided on the base map and setting the region as a horizon-tie; And
And a horizon verification unit for verifying a horizon formed in the horizon tie set by the horizon tie setting unit,
The horizon tie set by the horizon tie-
A first vertical section on the reflective surface in a direction perpendicular to the sea surface at a position corresponding to the track line, a second vertical section in contact with the first vertical section, a second vertical section in contact with the first vertical section, And a fourth vertical cross section adjacent to the third vertical cross section and adjacent to the second vertical cross section,
The horizon verifying unit,
Selecting a first horizon among a plurality of horizons included in the first vertical section and selecting a second horizon having one end in contact with an end of the first horizon in the second vertical section, A horizon setting module for selecting a third horizon in contact with the end of the second horizon and a fourth horizon in contact with the end of the third horizon in the fourth vertical section;
A horizon comparison module for comparing a height difference between one end of the first horizon and a tip end of the fourth horizon; And
And a horizon verification module for determining whether the first to fourth horizons are normal based on the height difference compared by the horizon comparison module,
Wherein the horizon verification module determines normal when the height difference between one end of the first horizon and the end of the fourth horizon is within a set value.
6. The method of claim 5,
Wherein the base map generator comprises:
An elastic wave generating module for generating an elastic wave in the seabed layer;
An elastic wave signal receiving module for receiving an elastic wave signal reflected on and reflected from the seabed layer; And
The coordinate information of the elastic wave signal generated by the elastic wave generating module and the coordinate information of the elastic wave signal received by the elastic wave signal receiving module are matched with each other and the track line of the probe line is divided into a plurality of areas, And a base map generation module for generating an acoustic wave based on the acoustic wave signal.
delete delete 6. The method of claim 5,
Wherein the set value is a time difference calculated from a height difference between the one end of the first horizon and the end of the fourth horizon, wherein the set value is modeled using an elastic wave search signal.

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