CN112505748B - Gun domain reflected wave pickup method and device - Google Patents
Gun domain reflected wave pickup method and device Download PDFInfo
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Abstract
The invention provides a gun domain reflected wave pickup method and a device, wherein the method comprises the following steps: obtaining a CMP (chemical mechanical polishing) gather, and generating a superposition speed body through speed analysis according to the CMP gather; superposing the CMP gather subjected to dynamic correction through the superposition velocity body to generate a superposition profile; identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile; extracting the instantaneous stacking speed of the layer along according to the position of the time layer in the stacking speed body; obtaining corresponding homophase shafts of target stratum reflected waves in the CMP track set through the time horizon and the transient superposition speed of the edge stratum; and sorting the same phase axis into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain.
Description
Technical Field
The invention relates to the field of exploration geophysics, in particular to a gun domain reflected wave pickup method and device.
Background
With the continuous improvement of the seismic exploration degree, the imaging precision requirement of the seismic data in the complicated near-surface areas (such as loess highland, mountain front zone and the like) is higher and higher. Because shallow velocity model errors can cause mid-deep migration imaging construction artifacts, the precise shallow velocity model directly determines the accuracy and quality of complex near-surface region seismic imaging. In conventional seismic data processing, a shallow velocity model is usually established by adopting first-arrival wave travel time tomographic inversion, but refractive wave information quantity is limited, and an accurate and comprehensive near-surface velocity model is difficult to establish in a complex near-surface area. Compared with the first-arrival wave traveling, the reflected wave carries richer underground medium information and can reflect finer speeds of different underground depth positions, so that the industry begins to explore the joint speed inversion of the first-arrival wave traveling and the reflected wave traveling in recent years to establish a more accurate shallow speed model. The first arrival wave for joint velocity inversion is easy to identify and pick up, and has mature pick-up methods and technologies in the industry, but the surface and underground structure changes so that the reflected wave of the same stratum changes in single shot recording time and space, and the influence of the signal to noise ratio of seismic data is difficult to pick up accurately in large scale before stack, thus severely limiting the application of the first arrival wave and reflected wave joint velocity inversion in the industry.
Disclosure of Invention
The invention aims to provide a shot domain reflected wave pickup method and device, which solve the problem that the current shot domain can not pick up the seismic reflected wave of a target interface directly, accurately and efficiently, and are suitable for refractive wave and reflected wave joint tomography inversion near-surface velocity modeling in a seismic data processing stage.
In order to achieve the above object, the present invention provides a method for picking up reflected waves in a cannon domain, comprising: obtaining a CMP (chemical mechanical polishing) gather, and generating a superposition speed body through speed analysis according to the CMP gather; superposing the CMP gather subjected to dynamic correction through the superposition velocity body to generate a superposition profile; identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile; extracting the instantaneous stacking speed of the layer along according to the position of the time layer in the stacking speed body; obtaining corresponding homophase shafts of target stratum reflected waves in the CMP track set through the time horizon and the transient superposition speed of the edge stratum; and sorting the same phase axis into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain.
In the shot domain reflected wave pickup method, preferably, before generating the superimposed velocity body by velocity analysis according to the CMP gather, the method further includes: the CMP track concentrates a predetermined type of abnormal energy and surface waves.
In the shot domain reflected wave pickup method, preferably, generating the superimposed velocity body by velocity analysis from the CMP gather includes: and generating a velocity spectrum through the CMP gather, and performing velocity analysis according to the velocity spectrum to generate a superposition velocity body.
In the shot domain reflected wave pickup method, preferably, generating the superimposed profile by superimposing the CMP gathers after the superimposed velocity body alignment correction includes: and performing dynamic correction on the CMP (chemical mechanical polishing) gather, and performing superposition processing on the CMP gather subjected to dynamic correction through the superposition speed body to obtain a superposition profile.
In the shot domain reflected wave pickup method, preferably, obtaining the corresponding in-phase axis of the target stratum reflected wave in the CMP trace set through the time horizon and the along-layer instantaneous stacking speed includes: and mapping the CMP points in the time horizon to a CMP gather after dynamic correction, and then obtaining a corresponding homophase axis of the target stratum reflected wave in the CMP gather by carrying out reaction correction along the instantaneous stacking speed of the stratum.
The invention also provides a gun domain reflected wave pickup device, which comprises: the device comprises an analysis module, a calculation module and a pickup module; the analysis module is used for obtaining a CMP (chemical mechanical polishing) gather, and generating a superposition speed body through speed analysis according to the CMP gather; superposing the CMP gather subjected to dynamic correction through the superposition velocity body to generate a superposition profile; identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile; extracting the instantaneous stacking speed of the layer along according to the position of the time layer in the stacking speed body; the calculation module is used for obtaining corresponding homophase axes of the target stratum reflected waves in the CMP track set through the time horizon and the along-layer instantaneous superposition speed; and the pickup module is used for sorting the same-phase shaft into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain.
In the shot domain reflected wave pickup apparatus described above, preferably, the analysis module further includes a preprocessing unit for eliminating abnormal energy and surface waves of a predetermined type in the CMP track set.
In the above shot domain reflected wave pickup device, preferably, the calculation module includes: and mapping the CMP points in the time horizon to a CMP gather after dynamic correction, and then obtaining a corresponding homophase axis of the target stratum reflected wave in the CMP gather by carrying out reaction correction along the instantaneous stacking speed of the stratum.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above method when executing the computer program.
The present invention also provides a computer readable storage medium storing a computer program for executing the above method.
The beneficial technical effects of the invention are as follows: the method for picking up the time horizon of the reflected wave of the target interface based on the superimposed profile overcomes the difficulty of picking up the reflected wave directly in the shot domain in the complicated near-surface area by mapping to the dynamic correction CMP gather and sorting to the shot domain after the reaction correction, and can accurately and efficiently pick up the reflected wave of the shot domain for the first arrival wave and the reflected wave to perform the joint chromatographic inversion.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the application. In the drawings:
FIG. 1A is a schematic flow chart of a method for picking up reflected waves in a cannon domain according to an embodiment of the present invention;
FIG. 1B is a schematic diagram of an application flow of a shot domain reflected wave pickup method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a superimposed velocity volume of a complex near-surface region in northwest according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a superimposed cross section of a complex near-surface region in northwest and a picked-up loess bottom reflection time horizon according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of the present invention for providing an instantaneous speed of loess bottom boundary reflection time in a superimposed velocity body extraction;
FIGS. 5A and 5B are schematic diagrams illustrating a point-to-point mapping of time horizons picked by an overlay profile to a dynamic CMP gather according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a dynamic calibration and a counter-dynamic calibration of CMP gathers and time horizon according to one embodiment of the invention;
FIG. 7 is a schematic diagram illustrating time horizon sorting into shot domains according to one embodiment of the present invention;
FIG. 8 is a schematic diagram of seismic data from a thick loess area 1, a mountain front belt 2, and a thin loess area 3 for loess bottom boundary reflection pickup according to an embodiment of the present invention;
FIG. 9 is a schematic view of a thick loess area loess bottom boundary picked up in a CMP field according to an embodiment of the present invention;
FIG. 10 is a schematic view of a mountain front zone loess bottom boundary picking up in a CMP domain according to an embodiment of the present invention;
FIG. 11 is a schematic view of a thin loess area loess bottom boundary picked up in a CMP field according to an embodiment of the present invention;
FIG. 12 is a schematic view of loess bottom boundary picking and sorting to a cannon domain according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of a shot domain reflected wave pickup device according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The following will describe embodiments of the present invention in detail with reference to the drawings and examples, thereby solving the technical problems by applying technical means to the present invention, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that, as long as no conflict is formed, each embodiment of the present invention and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
Additionally, the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that herein.
Referring to fig. 1A, the method for picking up reflected waves in a shot domain provided by the present invention includes:
Step 101, obtaining a CMP (chemical mechanical polishing) gather, and generating a superposition speed body through speed analysis according to the CMP gather;
102, superposing the CMP gathers after the superposition velocity body is subjected to dynamic correction to generate a superposition profile;
Step 103, identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile;
104, extracting the instantaneous stacking speed of the layers along the layers according to the fact that the time layers are located in the stacking speed body;
105, obtaining corresponding in-phase axes of the target stratum reflected wave in the CMP track set through the time horizon and the along-layer instantaneous superposition speed;
and 106, sorting the same phase axis into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain.
Overall, the above embodiment mainly comprises 4 parts, specifically as follows:
Step one, analyzing the superposition speed and establishing a full-area superposition speed body; identifying and accurately picking up an imaging time horizon of a certain reflection interface of the whole region on the superposition profile by combining regional geological recognition, and extracting the instantaneous superposition speed at the time horizon;
Mapping the time horizon picked up on the superimposed section to each dynamic corrected CMP trace set, completing the determination of the time of a certain interface reflected wave in each dynamic corrected CMP trace set, and realizing the determination of the time of information in post-stack imaging data in pre-stack data;
thirdly, applying the instantaneous superposition speed reaction correction extracted in the first step to the time horizon mapped to each dynamic correction CMP gather to finish the time determination of the reflected wave of a certain interface at different offset distances of the CMP gathers;
And fourthly, sorting the time layer after reaction correction into a gun domain, outputting the reflected time data of a certain interface of the gun domain, and completing the pickup of reflected waves of the certain interface of the gun domain.
Through the embodiment, the shot domain reflected wave pickup method provided by the invention can pick up the time horizon of the reflected wave of the target interface based on the superimposed profile, and the time horizons of the reflected wave of a certain geological interface in different areas can be easily and accurately determined and picked up by mapping to the dynamic correction CMP gather and sorting to the shot domain after the reaction correction by utilizing the direct correspondence between the superimposed profile imaging and the actual geological condition and adding the advantage that the signal to noise ratio of the superimposed profile is far higher than that of the pre-stack data; and extracting instantaneous dynamic correction speed along the time horizon picked up by the superimposed section for later reaction correction application, mapping the time value of the picked horizon of each CMP point of the superimposed section to the corresponding dynamic correction CMP gather one by one, wherein each dynamic correction CMP gather must have a same phase axis R i just positioned at the mapping time position, carrying out reaction correction calculation on each offset distance of the same phase axis R i of the dynamic correction CMP gather by using the extracted instantaneous superimposed speed of the layer to obtain the same-direction axis corresponding to a certain target interface reflection wave in each CMP gather, re-sorting the same-direction axis into a cannon domain, outputting the coordinate and time value of each channel of the same-direction axis, and finally realizing accurate and efficient picking of the certain target interface reflection wave in the cannon domain.
In an embodiment of the present invention, generating the superimposed velocity volume by velocity analysis from the CMP gather may further include: eliminating abnormal energy and surface waves of a preset type in the CMP track set; and generating a velocity spectrum through the CMP gather, and performing velocity analysis according to the velocity spectrum to generate a superposition velocity body. Further, generating a superimposed profile by superimposing the CMP gather after the superimposed velocity body pair motion correction includes: and performing dynamic correction on the CMP (chemical mechanical polishing) gather, and performing superposition processing on the CMP gather subjected to dynamic correction through the superposition speed body to obtain a superposition profile. In another embodiment of the present invention, obtaining the corresponding in-phase axis of the target formation reflected wave in the CMP gather by the temporal horizon and the along-layer instantaneous stacking velocity includes: and mapping the CMP points in the time horizon to a CMP gather after dynamic correction, and then obtaining a corresponding homophase axis of the target stratum reflected wave in the CMP gather by carrying out reaction correction along the instantaneous stacking speed of the stratum.
For a clearer description of the specific application of the above embodiment, the following description is made in detail with reference to specific practical applications, and those skilled in the art should understand that the examples are only illustrative, and do not limit the scope of the application claimed in any way. Taking the seismic data reflected wave pickup of a typical complex near-surface area in the west as an example, combining fig. 1A to 12, the process of picking up the reflected waves of the loess bottom boundary by using a shot-domain reflected wave pickup method in different near-surface type areas (including thick yellow mountain, mountain front zone and gobi) is detailed, and the final picking effect is shown.
The method provided by the invention picks up the time horizon of the reflected wave of the target interface based on the superimposed profile, and then converts the time horizon into the gun domain through series of processing, thereby finally realizing the flow chart of the specific embodiment of accurate and efficient pickup of the reflected wave of the gun domain.
In step 201, a CMP gather is input that has been subjected to removal of abnormal energy and surface waves. The flow proceeds to step 202.
At step 202, a velocity spectrum is generated and velocity analysis is performed using the preliminary denoised CMP gather to produce a full-area superimposed root mean square velocity volume (as shown in fig. 2). The flow proceeds to step 203.
In step 203, a dynamic correction is made to the CMP gather. The flow proceeds to step 204.
At step 204, the dynamic CMP gather is overlaid to produce an overlaid imaged profile of the work area, and certain target interface reflected wave temporal horizons (as shown in FIG. 3) are identified and picked up in conjunction with geological awareness of the work area. The flow proceeds to steps 205 and 206, respectively.
At step 205, the instantaneous superimposed root mean square velocity (rms) is extracted along the interface reflection time horizon picked up at step 204 for the velocity volumes generated at step 202 (as shown in fig. 4). The flow proceeds to step 206.
At step 206, the temporal horizons picked at step 205 are mapped to a dynamic CMP gather (as shown in FIGS. 5A and 5B) CMP by CMP. The flow proceeds to step 207.
In step 207, the time horizon mapped to the dynamic CMP gather in step 206 is applied to the stack acceleration generated in step 205 to perform reaction correction, and the time horizon after the reaction correction has a high degree of coincidence with the same axis of the reflected wave of the CMP gather (as shown in fig. 6). The flow proceeds to step 208.
In step 208, the time horizon after the reaction correction is sorted to the shot domain (as shown in fig. 7), so as to pick up reflected waves in the shot domain, and the coincidence rate of the phase axis of the reflected waves in the interface observed from the shot domain and the picked time horizon is very high.
In step 209, the reflected wave information minute gun, the detector station number and the pickup time information picked up by the shot domain are output and formed into a data body for the subsequent joint speed inversion, so that the pickup work of the reflected wave of a certain target interface in the whole area of the prestack shot domain is completed.
To illustrate the effect of the present invention on actual data processing, seismic data in 3 different earth surface types of areas, namely, a thick yellow mountain, a mountain front zone and a gobi area in a work area are selected to be picked up at the loess bottom (as shown in fig. 8). Because the superimposed section is directly superimposed by the dynamic correction CMP gathers, the loess bottom boundary is completely consistent with the dynamic correction CMP gather in section time, the time horizon picked up from the superimposed section is mapped to each dynamic correction CMP gather and just falls on one phase axis of the dynamic correction gather, and the phase axis is loess bottom boundary reflection. And (3) performing reaction correction on the loess bottom boundary reflection time horizon on the dynamic correction CMP gather, wherein the time horizon after the reaction correction is well matched with the same axis in different offset distances (shown in fig. 9, 10 and 11). The loess bottom boundary time horizon after reaction correction is extracted to the shot domain, so that the loess bottom boundary reflection of the shot domain is picked up, and as can be seen from fig. 12, the loess bottom boundary reflection picked up by the method has high accuracy in single shot seismic data of different near-surface types.
Referring to fig. 13, the present invention further provides a shot domain reflected wave pickup device, which includes: the device comprises an analysis module, a calculation module and a pickup module; the analysis module is used for obtaining a CMP (chemical mechanical polishing) gather, and generating a superposition speed body through speed analysis according to the CMP gather; superposing the CMP gather subjected to dynamic correction through the superposition velocity body to generate a superposition profile; identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile; extracting the instantaneous stacking speed of the layer along according to the position of the time layer in the stacking speed body; the calculation module is used for obtaining corresponding homophase axes of the target stratum reflected waves in the CMP track set through the time horizon and the along-layer instantaneous superposition speed; and the pickup module is used for sorting the same-phase shaft into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain.
In the above embodiment, the analysis module further includes a preprocessing unit for eliminating abnormal energy and surface waves of a predetermined type in the CMP track set. The computing module comprises: and mapping the CMP points in the time horizon to a CMP gather after dynamic correction, and then obtaining a corresponding homophase axis of the target stratum reflected wave in the CMP gather by carrying out reaction correction along the instantaneous stacking speed of the stratum. The specific operation of the modules or units in this embodiment has been illustrated in the previous embodiments and will not be described in detail here.
The beneficial technical effects of the invention are as follows: the method for picking up the time horizon of the reflected wave of the target interface based on the superimposed profile overcomes the difficulty of picking up the reflected wave directly in the shot domain in the complicated near-surface area by mapping to the dynamic correction CMP gather and sorting to the shot domain after the reaction correction, and can accurately and efficiently pick up the reflected wave of the shot domain for the first arrival wave and the reflected wave to perform the joint chromatographic inversion.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above method when executing the computer program.
The present invention also provides a computer readable storage medium storing a computer program for executing the above method.
As shown in fig. 14, the electronic device 600 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, a power supply 170. It is noted that the electronic device 600 need not include all of the components shown in fig. 14; in addition, the electronic device 600 may further include components not shown in fig. 14, to which reference is made to the related art.
As shown in fig. 14, the central processor 100, also sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device, which central processor 100 receives inputs and controls the operation of the various components of the electronic device 600.
The memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. The information about failure may be stored, and a program for executing the information may be stored. And the central processor 100 can execute the program stored in the memory 140 to realize information storage or processing, etc.
The input unit 120 provides an input to the central processor 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used for displaying display objects such as images and characters. The display may be, for example, but not limited to, an LCD display.
The memory 140 may be a solid state memory such as Read Only Memory (ROM), random Access Memory (RAM), SIM card, or the like. But also a memory which holds information even when powered down, can be selectively erased and provided with further data, an example of which is sometimes referred to as EPROM or the like. Memory 140 may also be some other type of device. Memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage 142, the application/function storage 142 for storing application programs and function programs or a flow for executing operations of the electronic device 600 by the central processor 100.
The memory 140 may also include a data store 143, the data store 143 for storing data, such as contacts, digital data, pictures, sounds, and/or any other data used by the electronic device. The driver storage 144 of the memory 140 may include various drivers of the electronic device for communication functions and/or for performing other functions of the electronic device (e.g., messaging applications, address book applications, etc.).
The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via an antenna 111. A communication module (transmitter/receiver) 110 is coupled to the central processor 100 to provide an input signal and receive an output signal, which may be the same as in the case of a conventional mobile communication terminal.
Based on different communication technologies, a plurality of communication modules 110, such as a cellular network module, a bluetooth module, and/or a wireless local area network module, etc., may be provided in the same electronic device. The communication module (transmitter/receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide audio output via the speaker 131 and to receive audio input from the microphone 132 to implement usual telecommunication functions. The audio processor 130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, the audio processor 130 is also coupled to the central processor 100 so that sound can be recorded locally through the microphone 132 and so that sound stored locally can be played through the speaker 131.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A shot domain reflected wave pickup method, the method comprising:
Obtaining a CMP (chemical mechanical polishing) gather, and generating a full-area superposition root mean square velocity body through velocity analysis according to the CMP gather;
superposing the CMP (chemical mechanical polishing) gathers after dynamic correction through the superposition root mean square velocity body to generate a superposition imaging profile;
identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile;
extracting instantaneous superimposed root mean square velocity along a layer according to the time layer in the superimposed root mean square velocity body;
Obtaining corresponding homophase shafts of target stratum reflected waves in the CMP track set through the time horizon and the edge stratum instantaneous superposition root mean square speed;
Sorting the same phase shaft into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain;
Outputting the coordinates and time values of each channel of the same phase shaft to finish the picking of reflected waves of the gun domain interface;
obtaining corresponding in-phase axes of the target stratum reflected wave in the CMP track set through the time horizon and the edge stratum instantaneous superposition root mean square velocity comprises the following steps: and mapping the CMP points in the time horizon to the CMP trace sets after dynamic correction, so as to realize the determination of the information in post-stack imaging data in pre-stack data time, wherein each dynamic correction CMP trace set must have an in-phase axis exactly positioned at the mapping time position, and performing the inverse correction calculation on each offset distance of the in-phase axis of the dynamic correction CMP trace set by using the extracted instantaneous superposition root mean square speed of the edge layer to obtain the in-phase axis corresponding to the target stratum reflected wave in each CMP trace set.
2. The shot domain reflected wave pickup method according to claim 1, further comprising, prior to generating a superimposed root mean square velocity volume from the CMP gather by velocity analysis: the CMP track concentrates a predetermined type of abnormal energy and surface waves.
3. The shot domain reflected wave pickup method of claim 1, wherein generating a superimposed root mean square velocity volume from the CMP gather by velocity analysis comprises: and generating a velocity spectrum through the CMP gather, and performing velocity analysis according to the velocity spectrum to generate a full-area superposition root mean square velocity body.
4. The shot domain reflected wave pickup method of claim 1, wherein generating a superimposed imaging profile from superimposed root mean square velocity body-corrected CMP gather superposition comprises: and performing dynamic correction on the CMP (chemical mechanical polishing) gather, and performing superposition processing on the CMP gather subjected to dynamic correction through the superposition root mean square velocity body to obtain a superposition imaging section.
5. A shot-domain reflected wave pickup apparatus, characterized in that the shot-domain reflected wave pickup method according to any one of claims 1 to 4 is performed, the apparatus comprising: the device comprises an analysis module, a calculation module and a pickup module;
The analysis module is used for obtaining a CMP (chemical mechanical polishing) gather, and generating a superimposed root mean square velocity body through velocity analysis according to the CMP gather; superposing the CMP (chemical mechanical polishing) gathers after dynamic correction through the superposition root mean square velocity body to generate a superposition imaging profile; identifying and picking up time horizons of the target stratum reflected wave in different areas of the superposition imaging profile according to geological information of areas corresponding to the superposition imaging profile; extracting instantaneous superimposed root mean square velocity along a layer according to the time layer in the superimposed root mean square velocity body;
the calculation module is used for obtaining corresponding homophase shafts of the target stratum reflected waves in the CMP track set through the time horizon and the instantaneous superposition root mean square speed of the edge layers;
the picking module is used for sorting the same-phase shaft into a shot domain to obtain a data body picked up by the target stratum reflected wave in the shot domain;
The computing module comprises: and mapping the CMP points in the time horizon to a CMP gather after dynamic correction, and then carrying out reaction correction by instantaneously superposing root mean square speed along the stratum to obtain corresponding homophase axes of the target stratum reflected wave in the CMP gather.
6. The shot domain reflected wave pickup apparatus according to claim 5, wherein the analysis module further comprises a preprocessing unit for eliminating abnormal energy and surface waves of a predetermined type in the CMP gather.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 4 when executing the computer program.
8. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 4.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053271A (en) * | 2010-11-17 | 2011-05-11 | 中国石油天然气股份有限公司 | Seismic Acquisition Quality Analysis Method and Device |
| CN106526664A (en) * | 2015-09-09 | 2017-03-22 | 娄兵 | Time-space domain geometric transform horizontal stacking seismic imaging method |
| WO2020168406A1 (en) * | 2019-02-20 | 2020-08-27 | Eneva S.A. | Method for improving 2d seismic acquisition |
-
2020
- 2020-11-02 CN CN202011204306.0A patent/CN112505748B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053271A (en) * | 2010-11-17 | 2011-05-11 | 中国石油天然气股份有限公司 | Seismic Acquisition Quality Analysis Method and Device |
| CN106526664A (en) * | 2015-09-09 | 2017-03-22 | 娄兵 | Time-space domain geometric transform horizontal stacking seismic imaging method |
| WO2020168406A1 (en) * | 2019-02-20 | 2020-08-27 | Eneva S.A. | Method for improving 2d seismic acquisition |
Non-Patent Citations (1)
| Title |
|---|
| 王小卫 等.偏移速度建模与成像技术.天然气工业.2010,(第2期),第52-54页. * |
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