CN112415573A - Shot and geophone point arrangement method and device based on barrier - Google Patents
Shot and geophone point arrangement method and device based on barrier Download PDFInfo
- Publication number
- CN112415573A CN112415573A CN202011186439.XA CN202011186439A CN112415573A CN 112415573 A CN112415573 A CN 112415573A CN 202011186439 A CN202011186439 A CN 202011186439A CN 112415573 A CN112415573 A CN 112415573A
- Authority
- CN
- China
- Prior art keywords
- shot
- point
- area
- sum
- encrypted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 71
- 230000004888 barrier function Effects 0.000 title claims abstract description 47
- 238000003384 imaging method Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims description 55
- 238000004364 calculation method Methods 0.000 claims description 19
- 238000007689 inspection Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 11
- 238000005304 joining Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 15
- 238000012545 processing Methods 0.000 description 10
- 238000009826 distribution Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 108010001267 Protein Subunits Proteins 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/168—Deployment of receiver elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a shot and geophone point arrangement method and device based on an obstacle, wherein the shot and geophone point arrangement method based on the obstacle comprises the following steps: acquiring common imaging point gather data of a target work area; determining a normal shot and geophone point collection according to the barrier area; determining a ciphered shot point set according to the barrier area, the target work area boundary and the safety distance; and arranging shot-checking points in the target work area according to the normal shot-checking point collection and the encrypted shot-checking point collection. According to the shot and geophone point arrangement method and device based on the barrier, the existing seismic data of the exploratory area are fully fused, the compensation condition of the shot and geophone points to be encrypted around the target area of the barrier to the shallow middle layer data loss is analyzed, the encrypted shot and geophone points are automatically selected, and the quality of the field acquisition of the shallow middle layer seismic data is improved.
Description
Technical Field
The invention relates to the field of petroleum exploration, in particular to a seismic acquisition technology under a complex surface condition, and specifically relates to a shot and geophone point arrangement method and device based on barriers.
Background
At present, seismic exploration is the most important technical means for oil and gas discovery and increasing storage and production, and seismic acquisition design is a key technology for realizing effective detection of geological targets. With the continuous improvement of exploration degree, many exploration areas enter a plurality of exploration stages such as secondary exploration, tertiary exploration and the like, the difficulty of finding large oil fields and new oil fields is increased, exploration target areas gradually turn to areas with complex surface conditions, and various obstacles such as houses, factories, bridges, roads, railways, dams, oil pipelines, rivers, aquaculture ponds, railway tunnels, military tube areas and the like exist in the areas, so that shot points and wave detection points cannot be arranged according to the designed observation system rule, shallow layers in seismic data are lost, and the overall knowledge of structural blocks and the resource evaluation of depression are influenced. In order to make up for seismic data loss caused by an obstacle area, in the prior art, variable-view design is often adopted in seismic exploration to solve the problems, and the specific method is that data loss conditions are measured by methods of shot-geophone point migration, channel replacement by shot, increase of shot-geophone point arrangement and the like, and by calculating the coverage times of a target layer and analyzing the number of the coverage times.
The observation system based on the covering times encrypts the shot-geophone point method, because the covering times can not really depict the imaging condition of seismic data, particularly the missing length and width of shallow-middle layer seismic data, the size and the imaging effect of a seismic section gap can not be really predicted, meanwhile, the current method can not fully integrate the actual seismic data acquired in the early stage of a exploratory area, the missing of the shallow layer data is often evaluated by experience, the shot-geophone point is designed in a variable manner according to the distribution condition of surface obstacles, the shot-geophone point is encrypted as much as possible, the imaging effect of the final data is different from person to person, the error is larger, and the scientificity and the rationality are lacked.
Disclosure of Invention
Aiming at the problems in the prior art, the method and the device for arranging the shot and geophone points based on the barrier provided by the invention analyze the compensation condition of the shot and geophone points to be encrypted around the target area of the barrier to the missing shallow middle layer data by fully fusing the old seismic data of the exploratory area and automatically select the encrypted shot and geophone points, thereby improving the quality of acquiring the shallow middle layer seismic data in the field.
In order to solve the technical problems, the invention provides the following technical scheme:
in a first aspect, the present invention provides a method for arranging shot-geophone points based on obstacles, comprising:
acquiring common imaging point gather data of a target work area;
determining a normal shot and geophone point collection according to the barrier area;
determining a ciphered shot point set according to the barrier area, the target work area boundary and the safety distance;
and arranging shot-checking points in the target work area according to the normal shot-checking point collection and the encrypted shot-checking point collection.
In one embodiment, the method for arranging shot points based on obstacles further includes:
and gridding the target work area according to the predetermined surface element size and the maximum offset distance so as to generate the observation system of the target work area.
In one embodiment, the determining a set of normal shot-geophone points from an obstacle region comprises:
setting normal shot detection points according to the barrier area and the safe distance in the target work area,
determining a first polygonal area in the observation system according to the boundary coordinates of the obstacle area;
and generating a normal shot-inspection point collection according to the polygonal area and the safe distance.
In one embodiment, the method for arranging shot points based on obstacles further comprises:
determining a second polygonal area according to the first polygonal area and the safety distance;
calculating the sum of the minimum time of all bin-overlapped tracks in the second polygon area.
In one embodiment, the calculating the minimum time sum of all bin-overlapped traces in the second polygon area includes:
calculating the offset of each bin in the observation system;
extracting seismic channel data closest to the surface element from the common imaging point gather data according to shot-geophone distance;
and stacking the seismic channel data to generate stacked channels of each surface element.
In an embodiment, the determining a cryptographic shot gather according to the obstacle area, the target work area boundary, and the safety distance includes:
determining an encrypted shot point set according to the obstacle area, the target work area boundary and the safety distance;
and the shot points of the encrypted shot point set are distributed between the boundary of the target work area and the second polygonal area.
In an embodiment, the arranging shot-geophone points in the target work area according to the normal shot-geophone point collection and the encrypted shot-geophone point collection includes:
any shot point is selected from the encrypted shot point set and added into the normal shot point set;
calculating the sum of the minimum time of all surface element overlapping channels in the second polygon area after the shot is added to generate the sum of the minimum time added;
when the sum of joining minimum times is less than the sum of minimum times, assigning the sum of minimum times as the sum of joining minimum times and deleting the shot in the encrypted shot set until the sum of minimum times is minimum.
In a second aspect, the present invention provides an obstacle-based shot point placement apparatus, comprising:
the point gather acquisition unit is used for acquiring common imaging point gather data of a target work area;
the normal collection determining unit is used for determining a normal shot and geophone point collection according to the barrier area;
the encryption set determining unit is used for determining an encryption shot point set according to the obstacle area, the target work area boundary and the safety distance;
and the shot detection point arrangement unit is used for arranging shot detection points in the target work area according to the normal shot detection point collection and the encrypted shot point collection.
In one embodiment, the device for arranging shot points based on obstacles further comprises:
and the observation system generation unit is used for gridding the target work area according to the predetermined surface element size and the maximum offset distance so as to generate the observation system of the target work area.
In one embodiment, the normal set determining unit includes:
a normal point setting module for setting normal shot-checking points according to the barrier area and the safety distance in the target work area,
a first region determination module, configured to determine a first polygonal region in the observation system according to the boundary coordinates of the obstacle region;
and the normal collection determining module is used for generating a normal shot-check point collection according to the polygonal area and the safe distance.
In one embodiment, the device for arranging shot points based on obstacles further comprises:
a second region determining unit, configured to determine a second polygon region according to the first polygon region and the safe distance;
and the minimum sum calculating unit is used for calculating the sum of the minimum time of all the surface element overlapping channels in the second polygon area.
In one embodiment, the minimum sum calculation unit includes:
the offset calculation module is used for calculating the offset of each bin in the observation system;
the seismic channel extraction module is used for extracting seismic channel data closest to the surface element from the common imaging point gather data according to shot-geophone distance;
and the seismic channel stacking module is used for stacking the seismic channel data to generate stacked channels of each surface element.
In an embodiment, the encryption aggregate determining unit is specifically configured to determine an encryption shot point aggregate according to the obstacle area, the target work area boundary, and the safety distance;
and the shot points of the encrypted shot point set are distributed between the boundary of the target work area and the second polygonal area.
In one embodiment, the shot point arrangement unit includes:
the shot point selection module is used for selecting any shot point from the encrypted shot point set and adding the selected shot point into the normal shot point set;
the adding and generating module is used for calculating the sum of the minimum time of all surface element overlapping channels in the second polygon area after the shot is added so as to generate the sum of the minimum time added;
and the time assignment module is used for assigning the sum of the minimum time as the sum of the minimum time when the sum of the minimum time is less than the sum of the minimum time, and deleting the shot in the encrypted shot set until the sum of the minimum time is minimum.
In a third aspect, the present invention 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 steps of the method for obstacle-based shot point placement when executing the program.
In a fourth aspect, the invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the method for obstacle-based shot point placement.
As can be seen from the above description, in the shot point arrangement method and apparatus based on the obstacle provided in the embodiment of the present invention, common imaging point gather data of a target work area is obtained first; then, determining a normal shot and geophone point collection according to the barrier area; determining an encrypted shot point set according to the obstacle area, the target work area boundary and the safety distance; and finally arranging shot-examination points in the target work area according to the normal shot-examination point collection and the encrypted shot-examination point collection. The method can fully fuse old data of the exploration area, pointedly and automatically encrypt the shot-examination points aiming at the condition that the shallow-middle-layer data of the collected data is lost due to the obstacle target area, and improve the scientificity and rationality of the encrypted shot-examination points, thereby not only improving the imaging quality of the shallow-middle-layer data of the obstacle target area, but also avoiding the problem that the imaging quality of the shallow-middle-layer data of the obstacle target area cannot be improved because the shot-examination points are multiplied according to the calculation of the covering times in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first flowchart illustrating a method for arranging shot-geophone points based on obstacles according to an embodiment of the present invention;
FIG. 2 is a second flowchart illustrating a method for arranging shot-geophone points based on obstacles according to an embodiment of the present invention;
FIG. 3 is a flowchart of step 200 in an embodiment of the present invention;
FIG. 4 is a third schematic flow chart of a method for arranging shot-geophone points based on obstacles in an embodiment of the invention;
FIG. 5 is a flowchart of step 700 in an embodiment of the present invention;
FIG. 6 is a flowchart of step 300 in an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a step 400 according to an embodiment of the present invention;
FIG. 8 is a schematic flow chart of a method for arranging shot-geophone points based on obstacles according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a representative common shot gather for a exploration area A in an exemplary embodiment of the present invention;
FIG. 10 is a schematic diagram illustrating the arrangement of shot-geophone points of an observation system newly designed in the exploratory area A in the embodiment of the present invention;
FIG. 11 is a schematic diagram illustrating offset distribution of a bin in a conventional scheme of an observation system in an embodiment of the present invention;
FIG. 12 is a seismic section view of a pre-encrypted shot point location B of an extraction observation system in an embodiment of the present invention;
FIG. 13 is a schematic diagram of the layout of the encrypted shot-geophone points of the observation system of the newly designed beam line in the exploratory area A in the embodiment of the present invention;
FIG. 14 is a seismic section view of a location B after the observation system encrypted shot points have been extracted in an embodiment of the present invention;
FIG. 15 is a first schematic structural diagram of an obstacle-based shot point arrangement apparatus in an embodiment of the present invention;
FIG. 16 is a second schematic structural diagram of an obstacle-based shot point placement apparatus in an embodiment of the present invention;
FIG. 17 is a schematic diagram of a normal collection determination unit according to an embodiment of the present invention;
FIG. 18 is a third schematic structural view of an obstacle-based shot point placement apparatus in an embodiment of the present invention;
FIG. 19 is a schematic diagram of a minimum sum computation unit in an embodiment of the invention;
FIG. 20 is a schematic structural view of a shot point arrangement unit in the embodiment of the present invention;
fig. 21 is a schematic structural diagram of an electronic device in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a specific implementation mode of a shot and geophone point arrangement method based on obstacles, and referring to fig. 1, the method specifically comprises the following steps:
step 100: and acquiring common imaging point gather data of the target work area.
Specifically, seismic data collected in an early stage of a target work area are collected and processed to obtain common imaging point gather data, and the common imaging point gather data which can represent geological characteristics of the work area and is uniform in offset distribution is selected. The common imaging point gather data generally refers to a common center point gather, the target layer characteristics of the exploration area refer to the fluctuation condition of the target layer, preferably, if the target layer of the exploration area is relatively flat, a single common imaging point gather data which can represent the target layer of the exploration area can be selected, and if the target layer has larger fluctuation, a plurality of common imaging point gather data or a line of common imaging point gather data can be selected in different areas.
Step 200: and determining a normal shot and geophone point collection according to the obstacle area.
It is to be understood that the normal shot point collection in step 200 refers to the collection of shot points arranged without an obstacle. Specifically, a first polygon area is determined according to the boundary of the obstacle, on the basis of the first polygon area, each edge extends outwards for the length of the safety distance, the extending direction is perpendicular to the edge, a second polygon is obtained, that is, the second polygon area is similar to the first polygon area, and a shot point set preliminarily arranged between the target work area and the second polygon is a normal shot point set (according to the first polygon area and the safety distance, a plurality of grid points in the first polygon area containing the obstacle are taken as middle points (note that, the middle points are a plurality of middle points), and a shot point set to be encrypted is obtained).
Step 300: and determining a cryptographic shot point set according to the obstacle area, the target work area boundary and the safety distance.
Specifically, according to the range and the safe distance of the first polygonal area containing the obstacle, the encrypted shots are arranged by taking grid points in the first polygonal area containing the obstacle as middle points, so that a shot set to be encrypted is obtained. It will be appreciated that the shot to be ciphered can only be deployed within a safe area calculated from the obstacles and the safe distance.
Step 400: and arranging shot-checking points in the target work area according to the normal shot-checking point collection and the encrypted shot-checking point collection.
Specifically, selecting a cryptographic shot point from a cryptographic shot point set by taking the criterion that the sum of minimum time of the superposition of the elements in a first polygonal area containing the barrier after the cryptographic shot point is less than that before the cryptographic shot point; after the shot point encryption is finished, selecting an encryption detection point according to the same method; and continuously and circularly encrypting the shot detection points until the sum of the minimum time of the bin stacking channels of the obstacle area behind the encrypted shot detection points is not less than that before the encrypted shot detection points, and stopping calculation.
As can be seen from the above description, in the shot point arrangement method based on the obstacle provided in the embodiment of the present invention, common imaging point gather data of a target work area is obtained first; then, determining a normal shot and geophone point collection according to the barrier area; determining an encrypted shot point set according to the obstacle area, the target work area boundary and the safety distance; and finally arranging shot-examination points in the target work area according to the normal shot-examination point collection and the encrypted shot-examination point collection. The method can fully fuse old data of the exploration area, pointedly and automatically encrypt the shot-examination points aiming at the condition that the shallow-middle-layer data of the collected data is lost due to the obstacle target area, and improve the scientificity and rationality of the encrypted shot-examination points, thereby not only improving the imaging quality of the shallow-middle-layer data of the obstacle target area, but also avoiding the problem that the imaging quality of the shallow-middle-layer data of the obstacle target area cannot be improved because the shot-examination points are multiplied according to the calculation of the covering times in the prior art.
In an embodiment, referring to fig. 2, the method for arranging shot points based on obstacles further includes:
step 500: and gridding the target work area according to the predetermined surface element size and the maximum offset distance so as to generate the observation system of the target work area.
Specifically, a new observation system is designed according to the geological task of the target work area, the surface element size and the maximum shot-geophone distance of the observation system are calculated, and meanwhile, the whole work area is gridded according to the surface element size.
In one embodiment, referring to fig. 3, step 200 further comprises:
step 201: and setting normal shot detection points according to the barrier area and the safe distance in the target work area.
And (5) loading barrier data on the newly designed observation system in the step 400, and laying normal shot and inspection points according to the range and the safe distance of the barrier area.
Step 202: determining a first polygonal area in the observation system according to the boundary coordinates of the obstacle area;
step 203: and generating a normal shot-inspection point collection according to the polygonal area and the safe distance.
In steps 202 and 203, a first polygonal region R including an obstacle is obtained from the boundary coordinates of the obstacle0Maximum offset O combined with observation systemmaxThe first polygonal region R0Each edge is extended outward vertically and extended OmaxObtaining a shot point polygonal area R to be encrypted1Region R1The normal shot point set of the internal design is W1Set of normal detection points as Q1(second polygonal region R)1Is composed of a first polygon R0Each edge is extended outward vertically and extended OmaxAnd the first polygon R0Respectively extending into a polygonal region formed by intersecting adjacent sides).
In an embodiment, referring to fig. 4, the method for arranging shot points based on obstacles further includes:
step 600: determining a second polygonal area according to the first polygonal area and the safety distance;
step 700: calculating the sum of the minimum time of all bin-overlapped tracks in the second polygon area.
In one embodiment, referring to fig. 5, step 700 further comprises:
step 701: calculating the offset of each bin in the observation system;
step 702: extracting seismic channel data closest to the surface element from the common imaging point gather data according to shot-geophone distance;
step 703: and stacking the seismic channel data to generate stacked channels of each surface element.
In steps 701 to 703, specifically, calculating the offset distribution of each bin of the observation system newly designed after the obstacle is loaded, extracting the nearest seismic channel from the common imaging point gather according to the offset for each bin, stacking the extracted seismic channels to obtain the stacked channel of each bin, and thus obtaining the polygon R, that is, obtaining the polygon R0The superimposed data volume of the region, the polygon R is calculated0The minimum time of each bin overlapping channel in the region is added, and the sum is T0(ii) a Note that T is0For encrypting the polygon R before the shot point0Each bin within the region overlaps the sum of the minimum times of the tracks.
In one embodiment, referring to fig. 6, step 300 further comprises:
step 301: determining an encrypted shot point set according to the obstacle area, the target work area boundary and the safety distance;
and the shot points of the encrypted shot point set are distributed between the boundary of the target work area and the second polygonal area. In particular, in the polygon R0The grid points in the region are midpoints, and the polygon R1In the region, the demodulator probes are receiving points, and the positions of the shot points to be encrypted corresponding to each demodulator probe are calculated to form a set { S }1,…,SnIs marked as a set W0(ii) a In addition, the shot points to be encrypted corresponding to each detection point are calculated, and the shot points to be encrypted can only be arranged in a safe region calculated according to the obstacles and the safe distance.
In one embodiment, referring to fig. 7, step 400 further comprises:
step 401: any shot point is selected from the encrypted shot point set and added into the normal shot point set;
step 402: calculating the sum of the minimum time of all surface element overlapping channels in the second polygon area after the shot is added to generate the sum of the minimum time added;
step 403: when the sum of joining minimum times is less than the sum of minimum times, assigning the sum of minimum times as the sum of joining minimum times and deleting the shot in the encrypted shot set until the sum of minimum times is minimum.
In steps 401 to 403, from the set W0To select an arbitrary SiAdding a normal shot point set W into a gun1In step 402, the obstacle region addition st is calculatediThe minimum time of overlapping channels of each surface element after the shot is used for dividing the polygon R0The minimum time summation of the element superposition channels in the region is obtained and added to the SiPolygon R behind gun0Sum of minimum time of overlapping channels of cells in region TiSet W of0In each gun is added into a set W1In (3), a polygonal region R is obtained0Set of inner primitive minimum time sums: { T1,,TnIf { T }1,,TnMinimum value in is less than T0Adding the cannon corresponding to the minimum value into the set W1In the simultaneous process from the set W of shots to be ciphered0With the minimum value being added to T0. And repeating the processes until the sum of the minimum time of the bin stacking channels of the obstacle area behind the encrypted shot is not less than that before the encrypted shot point, and stopping calculation. After the shot point encryption is finished, a polygon R is used0The grid points in the region are midpoints, and the polygon R1And taking shot points in the region as excitation points, calculating the position of a to-be-encrypted wave detection point corresponding to each shot point, and constructing a to-be-encrypted wave detection point set. And according to the same method, the detection points are distinguished one by one, and the calculation is stopped until the sum of the minimum time of the bin stacking channels of the obstacle region behind the encrypted detection point is not less than that before the encrypted detection point. And repeating the calculation until the sum of the minimum time of the barrier area bin stacking channels behind the encrypted shot-geophone point is not less than that before the encrypted shot-geophone point, and stopping calculatingAnd (4) calculating.
As can be seen from the above description, in the shot-geophone point arrangement method based on the barrier provided in the embodiment of the present invention, the existing actual seismic data of the exploration area is collected, and the seismic data is subjected to data processing to obtain the common imaging point gather; designing a new observation system according to the geological task of the exploration area, and gridding the whole work area according to the size of the surface element; obtaining a minimum polygon containing the obstacle and a polygon area of shot and inspection points to be encrypted according to the boundary coordinates of the obstacle to obtain a normal shot and inspection point set; calculating the sum of the minimum time of all surface elements in the minimum polygonal area containing the obstacle after the obstacle is loaded according to the minimum polygonal area range containing the obstacle and the safety distance; according to the range and the safe distance of the minimum polygonal area containing the obstacle, taking a grid point in the minimum polygonal area containing the obstacle as a middle point to obtain a shot point set to be encrypted; selecting an encrypted shot point from a shot point set to be encrypted according to the criterion that the sum of the minimum time of the surface element superposition channel in the minimum polygonal area containing the barrier after the encrypted shot point is less than that before the encrypted shot point; after the shot point encryption is finished, selecting an encryption detection point according to the same method; and continuously and circularly encrypting the shot detection points until the sum of the minimum time of the bin stacking channels of the obstacle area behind the encrypted shot detection points is not less than that before the encrypted shot detection points, and stopping calculation.
To further illustrate the present solution, the present invention provides a specific application example of the method for arranging shot and detected points based on obstacles, taking the exploration area a as an example, and the specific application example specifically includes the following contents, see fig. 8.
S1: and acquiring common imaging point gather data of the exploration area A.
Specifically, seismic data collected in an early stage of a selected exploration area are collected and processed, bad channel elimination, denoising and dynamic correction processing are performed on selected representative common shot gather data, a schematic diagram after reasonable excision is performed according to a waveform stretching distortion condition is shown in fig. 1, a vertical coordinate represents time, the unit is ms, a horizontal coordinate represents offset distance, the unit is m, and in addition, common imaging point gather data generally refers to a common central point gather.
It can be understood that the common imaging point gather data has continuous offset distribution, offset points cannot be normally arranged in an obstacle region generally, so that a single common imaging point gather has some offset loss, a plurality of adjacent common imaging point gathers need to be selected to form a super gather, and the far, middle and near offset distribution of the super gather is required to be uniform; the method is used for processing the early-collected seismic data, mainly comprises the steps of performing gather extraction, bad track elimination, denoising and dynamic correction processing on the selected seismic data, and performing reasonable excision according to the waveform stretching distortion condition.
Referring to fig. 9, a schematic diagram of a common shot gather data representative of a probe area a after performing bad track elimination, denoising and dynamic correction processing and performing reasonable excision according to a waveform stretching distortion condition is shown, wherein a vertical coordinate represents time in ms, a horizontal coordinate represents offset in m.
S2: and generating an observation system.
Designing a new observation system according to the geological task of the exploration area A, calculating the surface element size of the observation system to be 25 multiplied by 25 and the maximum shot-geophone distance to be 7868 meters, and simultaneously gridding the whole work area according to the surface element size.
On a newly designed observation system, obstacle data is loaded, normal shot and inspection points are designed according to the range and the safe distance of an obstacle region, referring to fig. 10, fig. 10 is a schematic diagram of the positions of the shot and inspection points of the newly designed observation system of a certain exploration area, black small circles are shot point positions, black squares are detection points, and it is seen that due to the influence of the obstacles, the shot and inspection points cannot be normally arranged in most areas.
S3: and setting a normal shot and inspection point according to the obstacle area and the safe distance in the exploration area A.
Fig. 11 is a distribution diagram of offsets of a certain bin in a conventional scheme of an observation system, and the ordinate and the abscissa both represent the size of the offsets, and the unit is m.
Fig. 12 is a seismic section of a position before an encrypted shot point of an observation system is extracted, and as can be seen from fig. 12, shot points cannot be normally arranged due to the influence of obstacles, a shallow data gap reaches about 0.75s, so that a shallow target data part is blank, and the overall geological interpretation and evaluation of data are influenced, wherein the ordinate is time, the unit is ms, and the abscissa is a bin number.
S4: and determining a normal shot and geophone point collection according to the obstacle area.
Obtaining a minimum polygonal area R containing the obstacle according to the boundary coordinates of the obstacle0The black polygon in FIG. 10, in combination with the maximum offset of the observation system, is the minimum polygon R0Each side extends outwards and extends vertically for 7868 meters to obtain a shot point polygonal area R to be encrypted1Region R1The normal shot point set of the internal design is W1；
Specifically, normal shot detection points are set according to an obstacle region and a safe distance in a target work area, and a first polygonal region is determined in an observation system according to boundary coordinates of the obstacle region; and generating a normal shot-inspection point collection according to the polygonal area and the safety distance.
S5: the sum of the minimum times for all bin-overlapped tracks within the second polygon area is calculated.
Specifically, calculating the offset of each bin in the observation system; extracting seismic channel data closest to the surface element from common imaging point gather data according to shot-geophone distance; the seismic trace data is stacked to generate stacked traces for each bin.
Further, the distribution of offset of each bin of the newly designed observation system after the obstacle is loaded is calculated, the gather is extracted according to the offset according to the selected common imaging point gather, the gather extracted by each bin is overlapped to obtain the overlapped gather of each bin, namely the overlapped data volume of the whole obstacle area is obtained, the seismic section of a certain position before the observation system is encrypted is extracted, as shown in fig. 12, it can be seen from the obstacle area inline line section extracted in fig. 12 that the offset cannot be normally arranged due to the influence of the obstacle, a shallow data gap reaches about 0.75s, so that the shallow target layer data is partially blank, and the whole geological interpretation and evaluation of the data are influenced. Calculating the minimum time of each surface element overlapping channel of the obstacle area, and calculating the sum of the minimum time of all surface elements overlapping channels of the obstacle area as T0。
S6: a set of encrypted shots is determined.
In particular, in polygonal areasDomain R0The inner grid point is a middle point, the wave detection point is a receiving point, the position of a shot point to be encrypted corresponding to each wave detection point is calculated according to the range of the barrier area and the safety distance, n shots are counted in total and are set { S }1,…,SnIs marked as a set W0。
S7: and arranging shot-examination points in the target work area according to the sum of the normal shot-examination point collection, the encrypted shot-examination point collection and the minimum time of all surface element superposed channels in the second polygonal area.
Specifically, according to the range and the safe distance of a first polygonal area containing the obstacle, a shot point set to be encrypted is obtained by taking grid points in the first polygonal area containing the obstacle as middle points; selecting an encrypted shot point from a shot point set to be encrypted according to the criterion that the sum of minimum time of the superposition channels of the elements in a first polygonal area containing the barrier after the encrypted shot point is less than that before the encrypted shot point; after the encrypted shot points are finished, encrypting the wave detection points according to the same method; and continuously and circularly encrypting the shot detection point until the sum of the minimum time of the barrier area surface element superposed channels after the encrypted shot detection point is not less than that before the encrypted shot detection point, and stopping calculation.
Specifically, the present embodiment includes the following:
(1) from the set W0To select an arbitrary SiAdding a normal shot point set W into a gun1In the step (5), the obstacle region addition step S is calculatediThe minimum time of overlapping channels of each surface element after the shot is used for dividing the polygon R0The minimum time summation of the element superposition channels in the region is obtained and added to the SiPolygon R behind gun0Sum of minimum time of overlapping channels of cells in region TiSet W of0In each gun is added into a set W1In (3), a polygonal region R is obtained0Set of inner primitive overlap trace minimum time sums: { T1,,TnIf { T }1,,TnMinimum value in is less than T0Adding the cannon corresponding to the minimum value into the set W1In the simultaneous process from the set W of shots to be ciphered0With the minimum value being added to T0. Repeating the above processes until the minimum overlapping channel of the obstacle area surface element after the encryption of a certain cannon is metAnd if the sum of the time is not less than the time before the encrypted shot point, stopping the calculation.
(2) After the shot point encryption is completed, the polygon R is formed in accordance with step S60The grid points in the region are midpoints, and the polygon R1And taking shot points in the region as excitation points, calculating the position of a to-be-encrypted wave detection point corresponding to each shot point, and constructing a to-be-encrypted wave detection point set.
(3) And (3) according to the same method for selecting the encrypted shot points in the step (1), judging one by the detection points until the sum of the minimum time of the bin grids of the obstacle area after the encrypted detection points is not less than that before the encrypted detection points, and stopping calculation.
(4) And (4) circulating the steps from S6 to (3) until the sum of the minimum time of the overlapped channels of the obstacle area bins behind the encrypted shot-geophone point is not less than that before the encrypted shot-geophone point, and stopping calculation.
Fig. 13 is a schematic diagram of arrangement of encrypted shot detection points of an observation system newly designed in a exploration area, wherein a large number of shot detection points are encrypted around an obstacle, black small circles are shot point positions, and black squares are detection points.
Fig. 14 is a seismic section at the same position as fig. 12 after the observation system encrypted shot-geophone point is extracted, and it can be seen from the barrier zone inline line section extracted in fig. 14 (the ordinate is time, the unit is ms, and the abscissa is the bin number), after the shot-geophone point is encrypted, shallow data is well compensated, and the data gap is controlled within 0.4 s.
From the above description, the specific application example provides a new method for encrypting the shot-geophone points of the obstacle target area based on actual data in petroleum geological exploration. Collecting actual seismic data existing in the exploration area, and performing data processing on the seismic data to obtain a common imaging point gather; designing a new observation system according to the geological task of the exploration area, and gridding the whole work area according to the size of the surface element; obtaining a minimum polygon containing the barrier and a polygon of shot and inspection points to be encrypted according to the boundary coordinates of the barrier to obtain a normal shot and inspection point set; calculating the sum of the minimum time of all surface elements in the minimum polygonal area containing the obstacle after the obstacle is loaded according to the minimum polygonal area range containing the obstacle and the safety distance; according to the range and the safe distance of the minimum polygonal area containing the obstacle, taking a grid point in the minimum polygonal area containing the obstacle as a middle point to obtain a shot point set to be encrypted; selecting an encrypted shot point from a shot point set to be encrypted according to the criterion that the sum of the minimum time of the surface element superposition channel in the minimum polygonal area containing the barrier after the encrypted shot point is less than that before the encrypted shot point; after the encrypted shot points are finished, encrypting the wave detection points according to the same method; and continuously and circularly encrypting the shot detection point until the sum of the minimum time of the barrier area surface element superposed channels after the encrypted shot detection point is not less than that before the encrypted shot detection point, and stopping calculation.
Based on the same inventive concept, the embodiment of the present application further provides a device for arranging shot-geophone points based on obstacles, which can be used to implement the methods described in the above embodiments, such as the following embodiments. Because the principle of solving the problems of the shot and geophone point arrangement device based on the barrier is similar to the shot and geophone point arrangement method based on the barrier, the implementation of the shot and geophone point arrangement device based on the barrier can be implemented by referring to the shot and geophone point arrangement method based on the barrier, and repeated parts are not described again. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. While the system described in the embodiments below is preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.
An embodiment of the present invention provides a specific implementation manner of a shot and geophone point arrangement device based on an obstacle, which can implement a shot and geophone point arrangement method based on an obstacle, and referring to fig. 15, the shot and geophone point arrangement device based on an obstacle specifically includes the following contents:
the point gather obtaining unit 10 is used for obtaining common imaging point gather data of a target work area;
a normal collection determining unit 20, configured to determine a normal shot and geophone point collection according to the obstacle region;
the encryption set determining unit 30 is configured to determine an encryption shot point set according to the obstacle area, the target work area boundary, and the safety distance;
and the shot detection point arrangement unit 40 is used for arranging shot detection points in the target work area according to the normal shot detection point collection and the encrypted shot point collection.
In one embodiment, referring to fig. 16, the obstacle-based offset point placement apparatus further comprises:
and the observation system generating unit 50 is configured to grid the target work area according to a predetermined bin size and a maximum offset distance, so as to generate an observation system of the target work area.
In one embodiment, referring to fig. 17, the normal set determining unit 20 includes:
a normal point setting module 201, configured to set a normal shot inspection point according to the obstacle area and the safe distance in the target work area,
a first region determining module 202, configured to determine a first polygonal region in the observation system according to the boundary coordinates of the obstacle region;
and a normal collection determining module 203, configured to generate a normal shot-check point collection according to the polygonal area and the safe distance.
In one embodiment, referring to fig. 18, the obstacle-based shot point placement apparatus further comprises:
a second region determining unit 60, configured to determine a second polygonal region according to the first polygonal region and the safe distance;
a minimum sum calculation unit 70 for calculating a minimum temporal sum of all bin-overlapped tracks within said second polygon area.
In one embodiment, referring to fig. 19, the minimum sum calculating unit 70 includes:
a offset calculation module 701, configured to calculate an offset of each bin in the observation system;
a seismic channel extraction module 702, configured to extract seismic channel data closest to the bin from the common imaging point gather data according to offset;
and a seismic channel stacking module 703, configured to stack the seismic channel data to generate stacked channels of each bin.
In an embodiment, the encryption aggregate determining unit 30 is specifically configured to determine an encryption shot point aggregate according to the obstacle area, the target work area boundary, and the safety distance;
and the shot points of the encrypted shot point set are distributed between the boundary of the target work area and the second polygonal area.
In one embodiment, referring to fig. 20, the offset point arranging unit 40 includes:
a shot point selection module 401, configured to select any shot point from the encrypted shot point collection and add the selected shot point into the normal shot point collection,
a joining and generating module 402, configured to calculate a sum of minimum times of all bin-overlapped channels in the second polygon area after the shot is joined, so as to generate a sum of joining minimum times;
a time assigning module 403, configured to, when the sum of joining minimum times is smaller than the sum of minimum times, assign the sum of minimum times as the sum of joining minimum times, and delete the shot in the encrypted shot set until the sum of minimum times is minimum.
As can be seen from the above description, the shot and geophone point arrangement apparatus based on the obstacle provided in the embodiment of the present invention processes seismic data acquired in an early stage of a exploration area to obtain a common imaging point gather; gridding the whole work area according to the size of the surface element; obtaining a normal shot detection point set according to the boundary coordinates of the obstacles; calculating the sum of the minimum time of all surface element superposed channels in the minimum polygonal area containing the obstacle after the obstacle is loaded; taking a grid point in a minimum polygon area containing the obstacle as a midpoint to obtain a shot point set to be encrypted; selecting an encrypted shot point from a shot point set to be encrypted according to the criterion that the sum of the minimum time of the surface element superposition channel in the minimum polygonal area containing the barrier after the encrypted shot point is less than that before the encrypted shot point; after the encrypted shot points are finished, selecting encrypted detection points according to the same method; and continuously and circularly encrypting the shot detection point until the sum of the minimum time of the barrier area surface element superposed channels after the encrypted shot detection point is not less than that before the encrypted shot detection point, and stopping calculation.
The embodiment of the present application further provides a specific implementation manner of an electronic device capable of implementing all steps in the method for arranging shot-geophone points based on obstacles in the foregoing embodiment, and referring to fig. 21, the electronic device specifically includes the following contents:
a processor (processor)1201, a memory (memory)1202, a communication Interface 1203, and a bus 1204;
the processor 1201, the memory 1202 and the communication interface 1203 complete communication with each other through the bus 1204; the communication interface 1203 is configured to implement information transmission between related devices, such as a server-side device, a seismic data acquisition device, and a client device.
The processor 1201 is configured to call the computer program in the memory 1202, and the processor executes the computer program to implement all the steps of the obstacle-based shot point arrangement method in the above-described embodiments, for example, to implement the following steps when the processor executes the computer program:
step 100: acquiring common imaging point gather data of a target work area;
step 200: determining a normal shot and geophone point collection according to the barrier area;
step 300: determining a ciphered shot point set according to the barrier area, the target work area boundary and the safety distance;
step 400: and arranging shot-checking points in the target work area according to the normal shot-checking point collection and the encrypted shot-checking point collection.
Embodiments of the present application further provide a computer-readable storage medium capable of implementing all steps in the obstacle-based shot point arrangement method in the above embodiments, where the computer-readable storage medium stores thereon a computer program, and the computer program implements all steps of the obstacle-based shot point arrangement method in the above embodiments when executed by a processor, for example, the processor implements the following steps when executing the computer program:
step 100: acquiring common imaging point gather data of a target work area;
step 200: determining a normal shot and geophone point collection according to the barrier area;
step 300: determining a ciphered shot point set according to the barrier area, the target work area boundary and the safety distance;
step 400: and arranging shot-checking points in the target work area according to the normal shot-checking point collection and the encrypted shot-checking point collection.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the hardware + program class embodiment, since it is substantially similar to the method embodiment, the description is simple, and the relevant points can be referred to the partial description of the method embodiment.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Although the present application provides method steps as described in an embodiment or flowchart, additional or fewer steps may be included based on conventional or non-inventive efforts. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or client product executes, it may execute sequentially or in parallel (e.g., in the context of parallel processors or multi-threaded processing) according to the embodiments or methods shown in the figures.
For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, in implementing the embodiments of the present description, the functions of each module may be implemented in one or more software and/or hardware, or a module implementing the same function may be implemented by a combination of multiple sub-modules or sub-units, and the like. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may therefore be considered as a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.
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.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
The embodiments of this specification may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The described embodiments may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.
Claims (16)
1. A shot and inspection point arrangement method based on obstacles is characterized by comprising the following steps:
acquiring common imaging point gather data of a target work area;
determining a normal shot and geophone point collection according to the barrier area;
determining a ciphered shot point set according to the barrier area, the target work area boundary and the safety distance;
and arranging shot-checking points in the target work area according to the normal shot-checking point collection and the encrypted shot-checking point collection.
2. The shot point placement method of claim 1, further comprising:
and gridding the target work area according to the predetermined surface element size and the maximum offset distance so as to generate the observation system of the target work area.
3. The shot point placement method of claim 2, wherein said determining a normal shot point set from an obstacle region comprises:
setting normal shot detection points according to the barrier area and the safety distance in the target work area;
determining a first polygonal area in the observation system according to the boundary coordinates of the obstacle area;
and generating a normal shot-inspection point collection according to the polygonal area and the safe distance.
4. The shot point placement method of claim 3, further comprising:
determining a second polygonal area according to the first polygonal area and the safety distance;
calculating the sum of the minimum time of all bin-overlapped tracks in the second polygon area.
5. The method of shot point placement according to claim 4, wherein said calculating the sum of the minimum times of all bin-overlapped traces within said second polygonal area comprises:
calculating the offset of each bin in the observation system;
extracting seismic channel data closest to the surface element from the common imaging point gather data according to shot-geophone distance;
and stacking the seismic channel data to generate stacked channels of each surface element.
6. The shot point placement method of claim 5, wherein said determining a set of encrypted shot points based on said barrier region, said target work zone boundary, and a safe distance comprises:
determining an encrypted shot point set according to the obstacle area, the target work area boundary and the safety distance;
and the shot points of the encrypted shot point set are distributed between the boundary of the target work area and the second polygonal area.
7. The shot point placement method of claim 6, wherein said placing shot points in said target work area according to said normal shot point collection and said encrypted shot point collection comprises:
any shot point is selected from the encrypted shot point set and added into the normal shot point set;
calculating the sum of the minimum time of all surface element overlapping channels in the second polygon area after the shot is added to generate the sum of the minimum time added;
when the sum of joining minimum times is less than the sum of minimum times, assigning the sum of minimum times as the sum of joining minimum times and deleting the shot in the encrypted shot set until the sum of minimum times is minimum.
8. An obstacle-based shot point placement device, comprising:
the point gather acquisition unit is used for acquiring common imaging point gather data of a target work area;
the normal collection determining unit is used for determining a normal shot and geophone point collection according to the barrier area;
the encryption set determining unit is used for determining an encryption shot point set according to the obstacle area, the target work area boundary and the safety distance;
and the shot detection point arrangement unit is used for arranging shot detection points in the target work area according to the normal shot detection point collection and the encrypted shot point collection.
9. The shot point placement apparatus of claim 8, further comprising:
and the observation system generation unit is used for gridding the target work area according to the predetermined surface element size and the maximum offset distance so as to generate the observation system of the target work area.
10. The offset point placement apparatus according to claim 9, wherein said normal collection determination unit comprises:
the normal point setting module is used for setting normal shot detection points according to the barrier area and the safety distance in the target work area;
a first region determination module, configured to determine a first polygonal region in the observation system according to the boundary coordinates of the obstacle region;
and the normal collection determining module is used for generating a normal shot-check point collection according to the polygonal area and the safe distance.
11. The shot point placement apparatus of claim 10, further comprising:
a second region determining unit, configured to determine a second polygon region according to the first polygon region and the safe distance;
and the minimum sum calculating unit is used for calculating the sum of the minimum time of all the surface element overlapping channels in the second polygon area.
12. The offset point placement device according to claim 11, wherein said minimum sum calculation unit comprises:
the offset calculation module is used for calculating the offset of each bin in the observation system;
the seismic channel extraction module is used for extracting seismic channel data closest to the surface element from the common imaging point gather data according to shot-geophone distance;
and the seismic channel stacking module is used for stacking the seismic channel data to generate stacked channels of each surface element.
13. The shot-geophone site arrangement device according to claim 12, wherein said encryption collection determining unit is specifically configured to determine an encryption shot collection from said obstacle region, said target work zone boundary and said safety distance;
and the shot points of the encrypted shot point set are distributed between the boundary of the target work area and the second polygonal area.
14. The shot point arranging apparatus according to claim 13, wherein the shot point arranging unit comprises:
the shot point selection module is used for selecting any shot point from the encrypted shot point set and adding the selected shot point into the normal shot point set;
the adding and generating module is used for calculating the sum of the minimum time of all surface element overlapping channels in the second polygon area after the shot is added so as to generate the sum of the minimum time added;
and the time assignment module is used for assigning the sum of the minimum time as the sum of the minimum time when the sum of the minimum time is less than the sum of the minimum time, and deleting the shot in the encrypted shot set until the sum of the minimum time is minimum.
15. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method of obstacle based shot point placement according to any of claims 1 to 7.
16. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for obstacle-based shot point placement according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186439.XA CN112415573A (en) | 2020-10-30 | 2020-10-30 | Shot and geophone point arrangement method and device based on barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186439.XA CN112415573A (en) | 2020-10-30 | 2020-10-30 | Shot and geophone point arrangement method and device based on barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112415573A true CN112415573A (en) | 2021-02-26 |
Family
ID=74827181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011186439.XA Pending CN112415573A (en) | 2020-10-30 | 2020-10-30 | Shot and geophone point arrangement method and device based on barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112415573A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605152A (en) * | 2013-10-30 | 2014-02-26 | 中国石油天然气集团公司 | Automatic shot-point offsetting method based on obstacle safety zone |
| US20140226438A1 (en) * | 2013-02-13 | 2014-08-14 | Wireless Seismic, Inc. | Assigned scheduled acquisition process in wireless exploration |
| CN104597493A (en) * | 2013-10-30 | 2015-05-06 | 中国石油天然气集团公司 | Observation system variable-layout design evaluation method and observation system variable-layout design evaluation device based on actual seismic data |
| CN105607115A (en) * | 2015-12-21 | 2016-05-25 | 中国石油天然气集团公司 | Shot point arrangement method and device |
| CN107290775A (en) * | 2017-05-16 | 2017-10-24 | 中国地震局地球物理勘探中心 | A kind of city two-dimension earthquake crosses obstacle observation system optimization geometry changed design method |
| CN111273339A (en) * | 2018-12-04 | 2020-06-12 | 中国石油天然气集团有限公司 | Shot point encryption method and system based on barrier target area |
-
2020
- 2020-10-30 CN CN202011186439.XA patent/CN112415573A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140226438A1 (en) * | 2013-02-13 | 2014-08-14 | Wireless Seismic, Inc. | Assigned scheduled acquisition process in wireless exploration |
| CN103605152A (en) * | 2013-10-30 | 2014-02-26 | 中国石油天然气集团公司 | Automatic shot-point offsetting method based on obstacle safety zone |
| CN104597493A (en) * | 2013-10-30 | 2015-05-06 | 中国石油天然气集团公司 | Observation system variable-layout design evaluation method and observation system variable-layout design evaluation device based on actual seismic data |
| CN105607115A (en) * | 2015-12-21 | 2016-05-25 | 中国石油天然气集团公司 | Shot point arrangement method and device |
| CN107290775A (en) * | 2017-05-16 | 2017-10-24 | 中国地震局地球物理勘探中心 | A kind of city two-dimension earthquake crosses obstacle observation system optimization geometry changed design method |
| CN111273339A (en) * | 2018-12-04 | 2020-06-12 | 中国石油天然气集团有限公司 | Shot point encryption method and system based on barrier target area |
Non-Patent Citations (6)
| Title |
|---|
| ZHAO HU 等: "Research on seismic survey design for doubly complex areas", APPLIED GEOPHYSICS, vol. 9, no. 03, 30 September 2012 (2012-09-30), pages 279 - 285 * |
| 刘远志 等: "城区特大型障碍物变观三维观测系统设计及应用――以德阳三维为例", 复杂油气藏, vol. 4, no. 04, 31 December 2011 (2011-12-31), pages 32 - 36 * |
| 叶天生: "三峡水库复合障碍区三维地震勘探设计与应用", 内蒙古石油化工, no. 03, 31 March 2017 (2017-03-31), pages 105 - 108 * |
| 许银坡 等: "利用以往地震数据的观测系统炮点加密技术", 石油地球物理勘探, vol. 55, no. 06, 31 December 2020 (2020-12-31), pages 1220 - 1230 * |
| 邹雪峰 等: "基于实际数据驱动的非纵波场模拟分析", 地球物理学进展, vol. 32, no. 06, 31 December 2017 (2017-12-31), pages 2619 - 2625 * |
| 陈学强 等: "复杂地表条件下的变观设计技术", 石油地球物理勘探, vol. 42, no. 05, 31 October 2007 (2007-10-31), pages 495 - 498 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102918423B (en) | Method for earthquake hydrocarbon system anlysis | |
| Kim et al. | Prediction of ground subsidence in Samcheok City, Korea using artificial neural networks and GIS | |
| CN110826236B (en) | Determination method for soil remediation pollution range | |
| KR100860797B1 (en) | Method for three dimensionally implementing mine tunnel | |
| CN109100795B (en) | Method, device and system for arranging shot and inspection points of surface element | |
| CN108254784B (en) | Fault identification method, device and system based on two-dimensional seismic data | |
| Suh et al. | Subsidence hazard assessment at the Samcheok coalfield, South Korea: a case study using GIS | |
| CN106327340A (en) | Method and device for detecting abnormal node set in financial network | |
| CN106772592A (en) | The analysis method and device of diffracted wave focus energy | |
| Wang et al. | Determination of discontinuity persistent ratio by Monte-Carlo simulation and dynamic programming | |
| Dassi et al. | Efficient geometric reconstruction of complex geological structures | |
| Bitelli et al. | Updating the subsidence map of Emilia-Romagna region (Italy) by integration of SAR interferometry and GNSS time series: The 2011–2016 period | |
| Hongquan et al. | Identification of fractures and preferential flow paths using streamlines and dynamic data in dual porosity dual permeability reservoir models | |
| CN114459656A (en) | Three-dimensional identification method and device for disturbance stress evolution process of underground cavern surrounding rock | |
| CN112415573A (en) | Shot and geophone point arrangement method and device based on barrier | |
| Anbazhagan et al. | Representative seismic hazard map of Coimbatore, India | |
| CN104155703A (en) | Method and device for evaluating three-dimensional observing system | |
| Su et al. | Multidisciplinary Data Integration for Artificial-Intelligence-Assisted Well Placement and Trajectory Design Optimization Under Uncertainty | |
| Anwar et al. | An effective streamline history matching technique | |
| Nanayakkara et al. | Characterizing the stimulated reservoir with a hydraulic deformation index using Tiltmeter-based surface microdeformation | |
| CN111273339B (en) | Shot point encryption method and system based on barrier target area | |
| Ilamah et al. | Fast Tracking Field Development Optimisation With Nature Inspired Heuristics | |
| Ekkawong et al. | SMARTDRAIN: an intelligent workflow for well-placement optimisation by integrating streamlines time-of-flight and exhaustive search algorithm | |
| CN112444876A (en) | Seismic data processing method and device | |
| Branets et al. | Capturing geologic complexity in a simulation grid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |