CN106814395A - The method and apparatus for determining background big gun - Google Patents
The method and apparatus for determining background big gun Download PDFInfo
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- CN106814395A CN106814395A CN201611152828.4A CN201611152828A CN106814395A CN 106814395 A CN106814395 A CN 106814395A CN 201611152828 A CN201611152828 A CN 201611152828A CN 106814395 A CN106814395 A CN 106814395A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005070 sampling Methods 0.000 claims abstract description 60
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 3
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/614—Synthetically generated data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/65—Source localisation, e.g. faults, hypocenters or reservoirs
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Abstract
The invention provides a kind of method and apparatus for determining background big gun, wherein, the method includes：Obtain the geological data of single-shot to be measured；Nearly arrangement data are chosen from geological data；It is determined that closely arranging the theoretical first arrival time in data Zhong Ge roads；Theoretical first arrival time according to each road determines the sampling point position corresponding to position of each road in nearly arrangement data；The sum of sampling point and sample point according to corresponding to position of each road in nearly arrangement data, determines the energy size in each road；Energy size according to each road compares and accounts for the ratio of nearly arrangement road number, determines whether single-shot to be measured is background big gun.The present invention solve it is existing by print playback monitor with determine to take caused by background big gun and inefficiency technical problem, reached the technique effect that fast and easy identifies background big gun.
Description
Technical field
The present invention relates to oil exploration technology field, more particularly to a kind of method and apparatus for determining background big gun.
Background technology
The distribution situation of background big gun record typically just recording noise, the information of subsurface reflective is not recorded.In complexity
Mountain region collection or the larger area of noise interference, it is the period larger in order to avoid noise in gatherer process, general prior
Need to carry out background big gun test.During earthquake-capturing monitor in real time, background big gun is often monitored together with normal big gun, therefore,
How background big gun to be identified, be also the technical problem of key in earthquake-capturing monitoring.
In the wild during seismic data acquisition, the situation of background big gun is often collected.Therefore, institute was blown out to the same day
The single shot record for obtaining carries out checking in time and preliminary treatment, implements quality in site and monitor more important.Data in-situ processing conduct
Effective link of earthquake data acquisition quality monitoring, the quality of its technological means can be directly connected to the height of seismic acquisition quality
It is low.
At present, the mode of conventional identification background big gun is to recognize background big gun by way of the artificial printing playback.
The method not only takes, effort, and uneconomical.And in actual application process, it is difficult to the need for meeting quick lookup.
In mass seismic data checking process, Quality Control personnel need to check each big gun, and this occurs careless omission unavoidably, meanwhile,
The geological data that each arrangement is received is amplified in three-dimensional many arrangements, this is likely to result in distortion.
Further, as stepping up for seismic prospecting ability is studied near surface geophysics technology in engineering field
Deepen continuously so that seismic data acquisition is carried out under complex near surface conditionss.Adopt in field under complex near surface conditionss
During collection, while improving field data acquisition technical method and strengthening field construction quality management, in addition it is also necessary to by having
The monitoring means of effect ensure the quality of field data for collecting, wherein, the automatic identification of background big gun is exactly one of them
Important sport technique segment.
For how effectively to determine background big gun, effective solution is not yet proposed at present.
The content of the invention
A kind of method for determining background big gun is the embodiment of the invention provides, the purpose of background big gun is accurately identified to reach, should
Method includes：
Obtain the geological data of single-shot to be measured；
Nearly arrangement data are chosen from the geological data；
Determine the theoretical first arrival time in the nearly arrangement data Zhong Ge roads；
Theoretical first arrival time according to each road determines the sample corresponding to position of each road in the nearly arrangement data
Point；
The sum of sampling point and sampling point according to corresponding to position of each road in the nearly arrangement data, determines each road
Energy value；
Whether energy size according to each road compares and accounts for the ratio of the nearly arrangement total road number of data, determines the single-shot to be measured
It is background big gun.
In one embodiment, nearly arrangement data are chosen from the geological data；Including：
In the case where the geological data is two-dimension earthquake data, using the geological data as the nearly number of permutations
According to；
In the case where the geological data is 3D seismic data, by the ground that receives line received by nearest from shot point
Shake data are used as the nearly arrangement data.
In one embodiment, the theoretical first arrival time in the nearly arrangement data Zhong Ge roads is determined, including：
The theoretical first arrival time in the nearly arrangement data Zhong Ge roads is determined according to below equation：
ti=t0+xi/v
Wherein, tiRepresent the theoretical first arrival time in the i-th road, xiThe geophone offset in the i-th road is represented, v represents the speed for pre-setting
Degree, t0Represent the time set in advance.
In one embodiment, the sampling point and sample corresponding to the position according to each road in the nearly arrangement data
The sum of point, determines the energy value in each road, including；
Sampling point corresponding to position of each road in the nearly arrangement data is defined as temp；
Each road is calculated from the 0th sampling point to the energy value between the temp sampling point, as the first energy value；
Each road is calculated from the temp sampling point to the energy value between the 2temp sampling point, as the second energy value；
Accordingly, the energy size according to each road compares and accounts for the ratio of the nearly arrangement total road number of data, determines described to be measured
Whether single-shot is that background big gun includes：Magnitude relationship between the first energy value and the second energy value according to each road and account for nearly arrangement
The ratio of road number, determines whether the single-shot to be measured is background big gun.
In one embodiment, energy value is calculated according to below equation：
Wherein, E represents energy value, and N represents the number of sampling point, aiRepresent i-th sample value of sampling point.
In one embodiment, between the first energy value and the second energy value according to each road magnitude relationship and account near
The ratio of road number is arranged, determines whether the single-shot to be measured is background big gun, including：
The ratio of total road number of nearly arrangement is accounted for more than the road number of the first energy value in the second energy value more than preset ratio
In the case of, determine that the single-shot to be measured is not background big gun；
The ratio of total road number of nearly arrangement is accounted for more than the road number of the first energy value in the second energy value less than or equal to default ratio
In the case of example, determine that the single-shot to be measured is background big gun.
In one embodiment, the preset ratio is 95%.
The embodiment of the present invention additionally provides a kind of device for determining background big gun, and the purpose of background big gun is accurately identified to reach,
The device includes：
Acquisition module, the geological data for obtaining single-shot to be measured；
Module is chosen, for choosing nearly arrangement data from the geological data；
First determining module, the theoretical first arrival time for determining the nearly arrangement data Zhong Ge roads；
Second determining module, for determining each road in the nearly arrangement data according to the theoretical first arrival time in each road
Position corresponding to sampling point；
3rd determining module, for according to each road it is described it is near arrangement data in position corresponding to sample value and
The sum of sampling point, determines the energy value in each road；
4th determining module, the ratio for comparing and accounting for the nearly arrangement total road number of data according to the energy size in each road, really
Whether the fixed single-shot to be measured is background big gun.
In one embodiment, the module of choosing is specifically for being the feelings of two-dimension earthquake data in the geological data
Under condition, using the geological data as the nearly arrangement data；In the case where the geological data is 3D seismic data, will
The geological data that receives line received by nearest from shot point is used as arrangement data close to described.
In one embodiment, first determining module according to below equation specifically for determining the nearly number of permutations
According to the theoretical first arrival time in Zhong Ge roads：
ti=t0+xi/v
Wherein, tiRepresent the theoretical first arrival time in the i-th road, xiThe geophone offset in the i-th road is represented, v represents the speed for pre-setting
Degree, t0Represent the time set in advance.
In embodiments of the present invention, by determining the energy value before and after the theoretical first arrival in each road, and each theoretical first arrival
To carry out the identification of background big gun, can effectively solve existing to be monitored with caused by determining background big gun by printing playback
The technical problem of time-consuming and inefficiency, has reached the technique effect that fast and easy identifies background big gun.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, not
Constitute limitation of the invention.In the accompanying drawings：
Fig. 1 is the flow chart of the method for determination background big gun according to embodiments of the present invention；
Fig. 2 is the background big gun schematic diagram for identifying according to embodiments of the present invention；
Fig. 3 is the normal big gun schematic diagram for identifying according to embodiments of the present invention；
Fig. 4 is the structured flowchart of the device of determination background big gun according to embodiments of the present invention.
Specific embodiment
It is right with reference to implementation method and accompanying drawing to make the object, technical solutions and advantages of the present invention become more apparent
The present invention is described in further details.Here, exemplary embodiment of the invention and its illustrating for explaining the present invention, but simultaneously
It is not as a limitation of the invention.
In embodiments of the present invention, there is provided a kind of method for determining background big gun, as shown in figure 1, following step can be included
Suddenly：
Step 101：Obtain the geological data of single-shot to be measured；
The geological data of the single-shot to be measured can be original earthquake reflection seimogram, can be by the side of field acquisition
What formula was obtained.
Step 102：Nearly arrangement data are chosen from the geological data；
If two-dimensional line, with regard to only one of which arrangement, therefore, there is no need to choose nearly arrangement data, direct geological data is just
Can be as nearly arrangement data.If three-dimensional survey line, then just choose the geological data that receives line obtained by nearest from dotted line
As nearly arrangement data.Can choose nearly arrangement data in such a way in an implementation method, first judge earthquake number
According to being two-dimension earthquake data or 3D seismic data, if geological data is two-dimension earthquake data, then by the earthquake number
According to as the nearly arrangement data；If geological data is 3D seismic data, then can be by the reception line nearest from dotted line
The geological data of gained is used as nearly arrangement data.
When realizing, can choose and closely arrange the seismic profile of earthquake single shot record as the nearly number of permutations containing n roads
According to participation follow-up calculating and treatment.
Step 103：Determine the theoretical first arrival time in the nearly arrangement data Zhong Ge roads；
When realizing, the theoretical first arrival time in each road can be determined by the way of man-machine interactively, kept crying, can be with
Theoretical first arrival time is determined in accordance with the following steps：
S1：Artificial setting speed and t0Time；
S2：The theoretical first arrival time in nearly arrangement data Zhong Ge roads is determined according to below equation：
ti=t0+xi/v
Wherein, tiRepresent the theoretical first arrival time in the i-th road, xiThe geophone offset in the i-th road is represented, v represents the speed for pre-setting
Degree, t0Represent the time set in advance.Wherein, geophone offset represents shot point to the distance of geophone station, can be believed by coordinate in SPS
Breath is calculated.
Step 104：Theoretical first arrival time according to each road determines position institute of each road in the nearly arrangement data
Corresponding sampling point；
According to the theoretical first arrival time for determining, it is possible to correspond at corresponding sampling point.
Step 105：The sum of sampling point and sampling point according to corresponding to position of each road in the nearly arrangement data,
Determine the energy value in each road；
It is determined that cutter energy value when, can be to determine that the sampling point corresponding to 0 to Li Lin first arrival time (is assumed to be
The temp sampling point) energy, and, from the temp sampling point to the energy the 2temp sampling point.
Specifically, the energy value in each road can be determined by following steps：
S1：Sampling point corresponding to position of each road in the nearly arrangement data is defined as temp；
S2：Each road is calculated from the 0th sampling point to the energy value between the temp sampling point, as the first energy value；
S3：Each road is calculated from the temp sampling point to the energy value between the 2temp sampling point, as the second energy value.
The calculating of above-mentioned energy value can be carried out according to below equation：
Wherein, E represents energy value, and N represents the number of sampling point, aiRepresent i-th sample value of sampling point.
Step 106：Energy size according to each road compares and accounts for the ratio of the nearly arrangement total road number of data, determines described to be measured
Whether single-shot is background big gun.
Specifically, can be according to the magnitude relationship between first energy value in each road and the second energy value, it is determined that described treat
Survey whether single-shot is background big gun, for example, in ratio of second energy value more than the Dao Shuozhanzong roads number of the first energy value more than pre-
If in the case of ratio, determining that the single-shot to be measured is not background big gun；Accounted for more than the road number of the first energy value in the second energy value
The ratio of total road number determines that the single-shot to be measured is background big gun less than or equal in the case of preset ratio.
Above-mentioned preset ratio could be arranged to 95%.
As shown in Fig. 2 be the background big gun monitored by the above method, the positional representation theory first arrival time of its center line,
As shown in figure 3, being the normal big gun monitored by the above method.
The method of above-mentioned determination background big gun is illustrated with reference to a specific embodiment, it should be noted, however, that
The specific embodiment does not constitute the improper restriction to the application merely to the application is better described.
In this example, there is provided a kind of background big gun recognition methods, may comprise steps of：
S1：Read the single-shot geological data that field acquisition is arrived；
S2：If single-shot data are three-dimensional data, the nearly arrangement data of the big gun are chosen；
S3：Data in S2 are determined with the theoretical first arrival time of the single shot record by man-machine interactively.
Specifically, theoretical first arrival time can be determined by following steps：
S3-1：Artificial setting speed v and t0Time；
S3-2：According to t=t0+xi/ v is calculated the first arrival time of theory.
Wherein, xiRepresent per geophone offset (distance of shot point to geophone station) together in the single shot record, specifically, can be with
X is calculated by coordinate information in SPSi；
S4：Assuming that the data in S2 there are n roads, can determine it in nearly arrangement data by theoretical first arrival curve in S3
Position temp.For each track data, first, 0 to temp energy value E1 of sampling point is calculated, then calculate temp to 2temp
The energy value E2 of sampling point, the algorithm for calculating energy is as follows：
Wherein, N represents the number of sampling point, aiRepresent i-th sample value of sampling point.
S5：If ratios of the E2 more than E1 accounts for more than the 95% of all n roads, the big gun is normal big gun, otherwise is background big gun.
Illustrated with reference to a concrete scene, may comprise steps of：
S1：From original earthquake reflection seimogram is collected choose road containing n closely arrange earthquake single shot record x (ix, t)
Seismic profile, wherein, ix=1,2 ... n；
S2：The theoretical first arrival time of the single shot record is determined by way of man-machine interactively, specifically, can be according to following
Step determines：
S2-1：Artificial setting speed v and t0Time；
S2-2：According to t=t0+xi/ v is calculated the first arrival time of theory.
Wherein, xiRepresent per geophone offset (distance of shot point to geophone station) together in the single shot record, specifically, can be with
X is calculated by coordinate information in SPSi；
S3：To per together, the energy value E1 of the sampling point temp corresponding to 0 to theoretical first arrival time being calculated first；
S4：To every one, then the energy value E2 for calculating sampling point temp to 2temp places；
S5：To per together, comparing with E1 E2, if ratios of the E2 more than E1 accounts for more than the 95% of all n roads, the big gun
It is normal big gun, otherwise is background big gun.
In upper example, there is provided a kind of automatic identifying method of background big gun, in the method, before relatively more theoretical first arrival
The size of energy value afterwards determines whether the big gun is background big gun, so as to be effectively improved the matter of field seismic data collection
Amount.The program is suitable for the earthquake-capturing of field such that it is able to the quality of seismic data when dynamic monitors field acquisition in real time.
Meanwhile, it is also applied in indoor earthquake pre-processing of the information, background big gun can automatically, be quickly and accurately identified, surveyed in oil gas
The fields such as spy, coal exploration, engineering exploration, protection against and mitigation of earthquake disasters have broad application prospects.
Based on same inventive concept, a kind of device for determining background big gun is additionally provided in the embodiment of the present invention, as following
Described in embodiment.Because the principle for determining the device solve problem of background big gun is similar to the method for determining background big gun, it is thus determined that
The implementation of the device of background big gun may refer to the implementation of the method for determining background big gun, repeats part and repeats no more.It is following to be used
, term " unit " or " module " can realize the combination of the software and/or hardware of predetermined function.Although following examples institute
The device of description is preferably realized with software, but hardware, or the realization of the combination of software and hardware is also possible and quilt
Conception.Fig. 4 is a kind of structured flowchart of the device of the determination background big gun of the embodiment of the present invention, as shown in figure 4, can include：
Acquisition module 401, selection module 402, the first determining module 403, the second determining module 404, the 3rd determining module 405 and the 4th
Determining module 406, illustrates to the structure below.
Acquisition module 401, the geological data for obtaining single-shot to be measured；
Module 402 is chosen, for choosing nearly arrangement data from the geological data；
First determining module 403, the theoretical first arrival time for determining the nearly arrangement data Zhong Ge roads；
Second determining module 404, for determining each road in the nearly number of permutations according to the theoretical first arrival time in each road
The sampling point corresponding to position in；
3rd determining module 405, for the sampling point corresponding to the position according to each road in the nearly arrangement data
With the sum of sampling point, the energy value in each road is determined；
4th determining module 406, the ratio for comparing and accounting for the nearly arrangement total road number of data according to the energy size in each road,
Determine whether the single-shot to be measured is background big gun.
In one embodiment, choose module 402 and specifically can be used in the geological data being two-dimension earthquake data
In the case of, using the geological data as the nearly arrangement data；It is the situation of 3D seismic data in the geological data
Under, using the geological data that receives line received by nearest from shot point as arrangement data close to described.
In one embodiment, the first determining module 403 specifically can be used for determining the nearly row according to below equation
The theoretical first arrival time in column data Zhong Ge roads：
ti=t0+xi/v
Wherein, tiRepresent the theoretical first arrival time in the i-th road, xiThe geophone offset in the i-th road is represented, v represents the speed for pre-setting
Degree, t0Represent the time set in advance.
In one embodiment, the position that the 3rd determining module 405 specifically can be by each road in the nearly arrangement data
Put corresponding sampling point and be defined as temp；Each road is calculated from the 0th sampling point to the energy value between the temp sampling point, as
One energy value；Each road is calculated from the temp sampling point to the energy value between the 2temp sampling point, as the second energy value；Phase
Answer, the 4th determining module 406 can determine institute according to the magnitude relationship between first energy value in each road and the second energy value
State whether single-shot to be measured is background big gun.
In one embodiment, the 3rd determining module 405 specifically can calculate energy value according to below equation：
Wherein, E represents energy value, and N represents the number of sampling point, aiRepresent i-th sample value of sampling point.
In one embodiment, the 4th determining module 406 specifically can be in the second energy value more than the first energy value
The ratio of Dao Shuozhanzong roads number determines that the single-shot to be measured is not background big gun more than in the case of preset ratio；In the second energy
In the case that value is less than or equal to preset ratio more than the ratio of the Dao Shuozhanzong roads number of the first energy value, the single-shot to be measured is determined
It is background big gun.
In one embodiment, the preset ratio is 95%.
In another embodiment, a kind of software is additionally provided, the software is used to perform above-described embodiment and preferred reality
Apply the technical scheme described in mode.
In another embodiment, a kind of storage medium is additionally provided, be stored with above-mentioned software in the storage medium, should
Storage medium is included but is not limited to：CD, floppy disk, hard disk, scratch pad memory etc..
As can be seen from the above description, the embodiment of the present invention realizes following technique effect：By determining each road
Energy value before and after theoretical first arrival, and each theoretical first arrival carries out the identification of background big gun, can effectively solve existing logical
Cross the monitoring of printing playback with determine to take caused by background big gun and inefficiency technical problem, reached fast and easy
Identify the technique effect of background big gun.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned embodiment of the present invention can be with
Realized with general computing device, they can be concentrated on single computing device, or be distributed in multiple computing devices
On the network for being constituted, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to by it
Store and performed by computing device in the storage device, and in some cases, can be held with different from order herein
The shown or described step of row, or they are fabricated to each integrated circuit modules respectively, or by the multiple in them
Module or step are fabricated to single integrated circuit module to realize.So, the embodiment of the present invention is not restricted to any specific hard
Part and software are combined.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the embodiment of the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made
Any modification, equivalent substitution and improvements etc., should be included within the scope of the present invention.
Claims (10)
1. it is a kind of determine background big gun method, it is characterised in that including：
Obtain the geological data of single-shot to be measured；
Nearly arrangement data are chosen from the geological data；
Determine the theoretical first arrival time in the nearly arrangement data Zhong Ge roads；
Theoretical first arrival time according to each road determines the sampling point corresponding to position of each road in the nearly arrangement data；
The sum of sampling point and sampling point according to corresponding to position of each road in the nearly arrangement data, determines the energy in each road
Value；
Energy size according to each road compares and accounts for the ratio of the nearly arrangement total road number of data, determines whether the single-shot to be measured is the back of the body
Scape big gun.
2. method according to claim 1, it is characterised in that nearly arrangement data are chosen from the geological data；Including：
In the case where the geological data is two-dimension earthquake data, using the geological data as the nearly arrangement data；
In the case where the geological data is 3D seismic data, by the earthquake number that receives line received by nearest from shot point
According to as the nearly arrangement data.
3. method according to claim 1, it is characterised in that when determining the theoretical first arrival in the nearly arrangement data Zhong Ge roads
Between, including：
The theoretical first arrival time in the nearly arrangement data Zhong Ge roads is determined according to below equation：
ti=t0+xi/v
Wherein, tiRepresent the theoretical first arrival time in the i-th road, xiThe geophone offset in the i-th road is represented, v represents the speed for pre-setting, t0
Represent the time set in advance.
4. method according to claim 1, it is characterised in that according to position of each road in the nearly arrangement data
Corresponding sampling point and the sum of sampling point, determine the energy value in each road, including；
Sampling point corresponding to position of each road in the nearly arrangement data is defined as temp；
Each road is calculated from the 0th sampling point to the energy value between the temp sampling point, as the first energy value；
Each road is calculated from the temp sampling point to the energy value between the 2temp sampling point, as the second energy value；
Accordingly, the energy size according to each road compares and accounts for the ratio of the nearly arrangement total road number of data, determines the single-shot to be measured
Whether it is that background big gun includes：Magnitude relationship between the first energy value and the second energy value according to each road and account for nearly arrangement road number
Ratio, determine whether the single-shot to be measured is background big gun.
5. method according to claim 4, it is characterised in that calculate energy value according to below equation：
Wherein, E represents energy value, and N represents the number of sampling point, aiRepresent i-th sample value of sampling point.
6. method according to claim 4, it is characterised in that between the first energy value and the second energy value according to each road
Magnitude relationship and account for the ratio of nearly arrangement road number, determine whether the single-shot to be measured is background big gun, including：
The situation of the ratio more than preset ratio of total road number of nearly arrangement is accounted for more than the road number of the first energy value in the second energy value
Under, determine that the single-shot to be measured is not background big gun；
The ratio of total road number of nearly arrangement is accounted for more than the road number of the first energy value in the second energy value less than or equal to preset ratio
In the case of, determine that the single-shot to be measured is background big gun.
7. method according to claim 6, it is characterised in that the preset ratio is 95%.
8. it is a kind of determine background big gun device, it is characterised in that including：
Acquisition module, the geological data for obtaining single-shot to be measured；
Module is chosen, for choosing nearly arrangement data from the geological data；
First determining module, the theoretical first arrival time for determining the nearly arrangement data Zhong Ge roads；
Second determining module, for determining position of each road in the nearly arrangement data according to the theoretical first arrival time in each road
Put corresponding sampling point；
3rd determining module, for sampling point and sampling point corresponding to the position according to each road in the nearly arrangement data
Sum, determines the energy value in each road；
4th determining module, the ratio for comparing and accounting for the nearly arrangement total road number of data according to the energy size in each road, it is determined that
Whether the single-shot to be measured is background big gun.
9. device according to claim 8, it is characterised in that the selection module specifically for being in the geological data
In the case of two-dimension earthquake data, using the geological data as the nearly arrangement data；In the geological data for dimensionally
In the case of shake data, using the geological data that receives line received by nearest from shot point as arrangement data close to described.
10. device according to claim 8, it is characterised in that first determining module is specifically for according to following public affairs
Formula determines the theoretical first arrival time in the nearly arrangement data Zhong Ge roads：
ti=t0+xi/v
Wherein, tiRepresent the theoretical first arrival time in the i-th road, xiThe geophone offset in the i-th road is represented, v represents the speed for pre-setting, t0
Represent the time set in advance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611152828.4A CN106814395B (en) | 2016-12-14 | 2016-12-14 | The method and apparatus for determining background big gun |
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| CN201611152828.4A CN106814395B (en) | 2016-12-14 | 2016-12-14 | The method and apparatus for determining background big gun |
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