CN105301635B - A kind of construction method and device of marine streamer time-lapse seismic data - Google Patents
A kind of construction method and device of marine streamer time-lapse seismic data Download PDFInfo
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- CN105301635B CN105301635B CN201510649649.0A CN201510649649A CN105301635B CN 105301635 B CN105301635 B CN 105301635B CN 201510649649 A CN201510649649 A CN 201510649649A CN 105301635 B CN105301635 B CN 105301635B
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Abstract
The embodiment of the present application provides a kind of construction method and device of marine streamer time-lapse seismic data.This method includes：First phase time-lapse seismic data and second phase time-lapse seismic data are obtained in advance；Travel through each big gun inspection pair in each shot point in the first phase time-lapse seismic data, and the time-lapse seismic data of traversal first shot point.The time-lapse seismic data of the first shot point are obtained from first phase time-lapse seismic data；It is determined that the second phase time-lapse seismic data in default circle scope；Obtain in the time-lapse seismic data of the first shot point the first bombard inspection to information；Judge big gun inspection in the second phase time-lapse seismic data in default circle scope to information whether with the first bombard examine to information match；When mismatch when, from the second phase time-lapse seismic data in default round scope choose meet preparatory condition big gun inspection to information as the time-lapse seismic data after structure.The technical scheme provided beneficial to the embodiment of the present application can effectively improve the repeatability of two phase time-lapse seismic data.
Description
Technical field
The present invention relates to time-lapse seismic technical field, more particularly to a kind of construction method of marine streamer time-lapse seismic data
And device.
Background technology
Time-lapse seismic technology is the different information progress Reservoir behavior spy for many phase seismic responses of same survey area
Levy the technology of research.When the seismic response features of non-reservoir rock are not changed over time, it can be divided by time-lapse seismic technology
The oil reservoirs such as reservoir inner pore pressure, porosity, fluid composition, fluid saturation and temperature of the precipitation caused by mining factor are special
Property situation of change, so as to understand the situation of change of fluid flow and fluid composition in reservoir, to formulate or more fresh oil
Gas development plan provides effective foundation.
In the prior art, typically subtracting each other two reproducible phase time-lapse seismic data can eliminate by non-reservoir rock
The seismic response of the formation such as construction, lithology, obtains difference seismic response.Can be with Study In Reservoir using the difference seismic response
The situation of change of fluid flow and fluid composition.But in time-lapse seismic exploration implementation process, particularly marine streamer
When gathering time-lapse seismic data, due to being limited by the specific construction environment such as tide, stormy waves, ocean current and acquisition condition, hull
The receiving position of each wave detector is all difficult to accurate control on the shot position excited during traveling and towing cable.This results in two
The repeatability of the marine time-lapse seismic data of phase is difficult to be protected so that two phase geological datas subtract each other differently ringing of obtaining
Both reservoir fluid has been included in answering and has changed the expectation difference produced, the unexpected difference of non-changes in reservoir generation is included again.Therefore, nothing
Method accurately obtains the situation of change of fluid flow and fluid composition in reservoir according to difference geological data, it is impossible to formulate
Or the effective foundation of oil and gas development scheme offer is provided.
The content of the invention
The purpose of the application is to provide a kind of construction method and device of marine streamer time-lapse seismic data, to improve for two phases
The repeatability of time-lapse seismic data, it is hereby achieved that accurately reflecting the change of fluid flow and fluid composition in reservoir
The difference geological data of situation, effective foundation is provided to formulate or updating oil and gas development scheme.
To achieve these goals, it is described this application provides a kind of construction method of marine streamer time-lapse seismic data
Method includes：First phase time-lapse seismic data and second phase time-lapse seismic data are obtained in advance；With traveling through the first phase time shift
Each shot point in data is shaken, operations described below is performed to each shot point in the first phase time-lapse seismic data：
The time-lapse seismic data of the first shot point are obtained from the first phase time-lapse seismic data；
It is determined that the second phase time-lapse seismic data in default circle scope, the default circle is included with the position of first shot point
It is set to the center of circle, and using the shot point error threshold that pre-sets as the circle of radius；
Each big gun inspection pair in the time-lapse seismic data of first shot point is traveled through, to each big gun in first shot point
Inspection is to performing operations described below：
Obtain in the time-lapse seismic data of first shot point the first bombard inspection to information；
Judge big gun inspection in the second phase time-lapse seismic data in the default round scope to information whether with described the
One big gun inspection to information match；
When judged result is mismatches, choose and meet from the second phase time-lapse seismic data in the default round scope
Preparatory condition big gun inspection to information be used as the time-lapse seismic data after structure.
In a preferred embodiment, methods described also includes：
When judged result is matching, by the second phase time-lapse seismic data in the default round scope with described first
Big gun inspection to information match big gun inspection to information be used as the time-lapse seismic data after structure.
In a preferred embodiment, chosen in the second phase time-lapse seismic data out of described default round scope
Meet preparatory condition big gun inspection to information include as the time-lapse seismic data after structure：
Calculate first bombard inspection to shot point and the in the second phase time-lapse seismic data in the default round scope
Second Artillery Force's inspection shot point shot point distance, calculate first bombard inspection to geophone station and second big gun examine to geophone station
Between geophone interval from calculating the shot point distance with the geophone interval from sum；
The shot point error threshold pre-set described in being less than when shot point distance, and the geophone interval is from less than advance
During the geophone station error threshold of setting, and the shot point distance and the geophone interval from sum be less than the big gun that pre-sets and examine
During to error threshold, by the minimum shot point distance of numerical value and the geophone interval from sum corresponding to big gun inspection to letter
Cease as the time-lapse seismic data after building.
In a preferred embodiment, methods described also includes：
In a preferred embodiment, the shot point error threshold is set to 70m.
In a preferred embodiment, the geophone station error threshold is set to 50m.
In a preferred embodiment, the big gun inspection is set to 100m to error threshold.
A kind of construction device of marine streamer time-lapse seismic data, described device includes：
Presetting module, for obtaining first phase time-lapse seismic data and second phase time-lapse seismic data in advance；Traversal is described
Each big gun inspection in each shot point in first phase time-lapse seismic data, and the time-lapse seismic data of traversal first shot point
It is right；
First data acquisition module, the time-lapse seismic for obtaining the first shot point from the first phase time-lapse seismic data
Data；
First determining module, for determining the second phase time-lapse seismic data in default circle scope, the default circle includes
The center of circle is in position using first shot point, and using the shot point error threshold that pre-sets as the circle of radius；
In second data acquisition module, the time-lapse seismic data for obtaining first shot point the first bombard inspection to letter
Breath；
Judge module, for judge the big gun in the second phase time-lapse seismic data in the default round scope inspection to information
Whether with the first bombard examine to information match；
First data processing module, for when the judged result of the judge module is mismatches, from the default circle
In the range of second phase time-lapse seismic data in choose meet the big gun inspection of preparatory condition to information as the time shift after structure
Shake data.
In a preferred embodiment, described device also includes：
Second data processing module, for when the judged result of the judge module is matching, by the default round model
Enclose in interior second phase time-lapse seismic data examined with the first bombard to information match big gun inspection to information as structure
Time-lapse seismic data afterwards.
In a preferred embodiment, the first data processing module includes：
Computing unit, for calculate first bombard inspection to shot point and the second phase time shift in the default round scope
Shake the second big gun inspection in data shot point shot point distance, calculate first bombard inspection to geophone station and second big gun
Examine geophone station geophone interval from calculating the shot point distance with the geophone interval from sum；
Data processing unit, for being less than the shot point error threshold pre-set when shot point distance, and it is described
When geophone interval is from less than the geophone station error threshold pre-set, and the shot point distance and the geophone interval from sum
When examining less than the big gun pre-set to error threshold, by the minimum shot point distance of numerical value with the geophone interval from sum institute
The inspection of corresponding big gun to information be used as the time-lapse seismic data after structure.
In a preferred embodiment, described device also includes：
In a preferred embodiment, the shot point error threshold is set to 70m.
In a preferred embodiment, the geophone station error threshold is set to 50m.
In a preferred embodiment, the big gun inspection is set to 100m to error threshold.
The technical scheme provided from above the embodiment of the present application, the embodiment of the present application passes through to by first phase time shift
Each geophone station in each shot point in shake data is matched with the geophone station in second phase time-lapse seismic data successively, and
From the second phase time-lapse seismic data in the default round scope choose meet preparatory condition big gun inspection to information as structure
Time-lapse seismic data after building.Time-lapse seismic data after the structure of acquisition have good collection uniformity, with described first
Phase time-lapse seismic data have good repeatability.This feature is beneficial to subsequently obtain determining flow of fluid and stream in reservoir
Difference seismic response caused by body composition transfer.Compared with prior art, the technical scheme provided using the embodiment of the present application can
To improve the repeatability of two phase time-lapse seismic data, so as to accurately reflect flow of fluid and fluid composition in reservoir beneficial to acquisition
Difference geological data, effective foundation is provided to formulate or updating oil and gas development scheme caused by change.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the first embodiment of the construction method of marine streamer time-lapse seismic data of the application；
Fig. 2 is a kind of flow chart of the second embodiment of the construction method of marine streamer time-lapse seismic data of the application；
Fig. 3 is a kind of schematic diagram of the construction device for marine streamer time-lapse seismic data that the embodiment of the present application is provided；
Fig. 4 is a kind of another signal of the construction device for marine streamer time-lapse seismic data that the embodiment of the present application is provided
Figure.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to the application protection
Scope.
Below implementing for the embodiment of the present application is described in detail with several specific examples.
Introduce a kind of first embodiment of the construction method of marine streamer time-lapse seismic data of the application first below.Fig. 1
It is a kind of flow chart of the first embodiment of the construction method of marine streamer time-lapse seismic data of the application, although stream is described below
Journey includes multiple operations for occurring with particular order, but it should be clearly understood that these processes can include it is more or less
Operation, these operations can sequentially be performed or performed parallel.With reference to accompanying drawing 1, the embodiment includes：
First phase time-lapse seismic data and second phase time-lapse seismic data are obtained in advance；Travel through the first phase time-lapse seismic
Each shot point in data, operations described below is performed to each shot point in the first phase time-lapse seismic data：
S110：The time-lapse seismic data of the first shot point are obtained from the first phase time-lapse seismic data.
In actual applications, acquisition time-lapse seismic data can be gathered by way of marine streamer.Specifically, described
One shot point can include any shot point in the first phase time-lapse seismic data.The time-lapse seismic data of first shot point can
With including corresponding to first shot point big gun inspection to information.In certain embodiments, each shot point correspondence is one or more
Geophone station, accordingly, the one or more pairs of big gun inspections pair of the first shot point correspondence.
In certain embodiments, the time-lapse seismic number of the first shot point can be obtained from the first phase time-lapse seismic data
According to.Specifically, the first phase time-lapse seismic data can include can as later stage time-lapse seismic data to be matched reference number
According to.In a specific embodiment, the first phase time-lapse seismic data can include 4 towing cable collections of 100 meters of spacing
Time-lapse seismic data, and every towing cable has 368, the wave detector of 12.5 meters of spacing.
S120：It is determined that the second phase time-lapse seismic data in default circle scope, the default circle is included with the first bombard
The position of point is the center of circle, and is used as using the shot point error threshold that pre-sets the circle of radius.
In certain embodiments, it may be determined that the second phase time-lapse seismic data in default circle scope, the default circle bag
The position using first shot point is included as the center of circle, and is used as using the shot point error threshold that pre-sets the circle of radius.Specifically, institute
Later stage time-lapse seismic data to be matched can be included by stating second phase time-lapse seismic data.It is described in a specific embodiment
Second phase time-lapse seismic data can include the time-lapse seismic data of 10 towing cable collections of 100 meters of spacing, and every towing cable has
372, the wave detector that 12.5 meters of spacing.
Further, the shot point error threshold pre-set can be including shot point in two phase time-lapse seismic data most
Big position interval error value, and when the distance between two shot points is less than the shot point error threshold, it can be determined that two shot points
Position for overlap.Specifically, the shot point error threshold can be preset according to application scenarios.It is specific at one
In embodiment, the shot point error threshold could be arranged to 70m, but the embodiment of the present application is not limited thereto.
Further, each big gun inspection pair in the time-lapse seismic data of first shot point is traveled through, to first shot point
In each big gun inspection to perform operations described below：
S130：Obtain in the time-lapse seismic data of first shot point the first bombard inspection to information.
In certain embodiments, can obtain in the time-lapse seismic data of first shot point the first bombard inspection to letter
Breath.First bombard inspection to information can include any big gun inspection in first shot point to shot point positional information and institute
State big gun inspection to geophone station positional information.
S140：Judge in the second phase time-lapse seismic data in the default round scope big gun inspection to information whether with institute
State the first bombard inspection to information match.
In certain embodiments, step S130 obtain first bombard inspection to information after, it can be determined that it is described default
Circle scope in second phase time-lapse seismic data in big gun inspection to information whether with the first bombard examine to information match.
Further, when judge the big gun in the second phase time-lapse seismic data in the default round scope inspection to information
With the first bombard examine to information mismatch when, step S150 can be performed.
S150：When judged result is mismatches, selected from the second phase time-lapse seismic data in the default round scope
Take meet preparatory condition big gun inspection to information as the time-lapse seismic data after structure.
In certain embodiments, can be out of described default round scope when step S140 judged result is mismatches
Second phase time-lapse seismic data in choose meet preparatory condition big gun inspection to information as the time-lapse seismic data after structure.
Specifically, can include：Calculate first bombard inspection to shot point and the second phase time-lapse seismic number in the default round scope
The second big gun inspection in shot point shot point distance, calculate first bombard inspection to geophone station and second big gun inspection pair
Geophone station between geophone interval from calculating the shot point distance with the geophone interval from sum；When the shot point is apart from small
In the shot point error threshold pre-set, and the geophone interval from less than the geophone station error threshold pre-set when,
And the shot point distance and the geophone interval are when being less than the big gun pre-set from sum and examining to error threshold, numerical value is minimum
The shot point distance and the geophone interval from the big gun inspection corresponding to sum to information be used as the time-lapse seismic data after structure.
Specifically, the second big gun inspection is examined to that can include any big gun in the second phase time-lapse seismic data in the default round scope
It is right.
Further, the shot point error threshold pre-set can be including shot point in two phase time-lapse seismic data most
Big position interval error value, and when the distance between two shot points is less than the shot point error threshold, it can be determined that two shot points
Position for overlap.Specifically, the shot point error threshold can be preset according to application scenarios.It is specific at one
In embodiment, the shot point error threshold could be arranged to 70m, but the embodiment of the present application is not limited thereto.
Further, the geophone station error threshold pre-set can include examining in the two phases time-lapse seismic data
The maximum position interval error value of wave point, and when the distance between two geophone stations is less than the shot point error threshold, can sentence
The position of disconnected two geophone stations is coincidence.Specifically, the geophone station error threshold can in advance be set according to application scenarios
It is fixed.In a specific embodiment, the geophone station error threshold could be arranged to 50m, but the embodiment of the present application not with
This is limited.
Further, the big gun inspection pre-set can include big gun inspection pair in two phase time-lapse seismic data to error threshold
Maximum position interval error threshold value, the maximum position interval error threshold value include two phase big guns examine to shot position spacing miss
Difference and the two phases big gun examine to geophone station position interval error value sum.When the two phases big gun examine to shot position spacing
Error amount and the two phases big gun examine to geophone station position interval error value sum be less than the shot point error threshold when, can sentence
Disconnected two big guns inspection to position to overlap.Specifically, the big gun inspection can in advance be set to error threshold according to application scenarios
It is fixed.In a specific embodiment, big gun inspection could be arranged to 100m to error threshold, but the embodiment of the present application not with
This is limited.
As can be seen here, the technical side that a kind of embodiment of construction method of marine streamer time-lapse seismic data of the application is provided
Case by by each geophone station in each shot point in first phase time-lapse seismic data successively with second phase time-lapse seismic number
Geophone station in is matched, and selection meets default bar from the second phase time-lapse seismic data in the default round scope
Part big gun inspection to information be used as the time-lapse seismic data after structure.Time-lapse seismic data after the structure of acquisition have good
Uniformity is gathered, there is good repeatability with the first phase time-lapse seismic data.This feature is beneficial to that follow-up obtain can be with
Determine flow of fluid and the caused difference seismic response of fluid composition change in reservoir.Compared with prior art, this Shen is utilized
Please embodiment provide technical scheme can improve the repeatability of two phase time-lapse seismic data, so as to accurately reflect storage beneficial to acquisition
Flow of fluid and the caused difference geological data of fluid composition change, are provided with to formulate or updating oil and gas development scheme in layer
The foundation of effect.
The application second embodiment also add extra step on the basis of first embodiment.Introduced below
Apply for a kind of construction method for marine streamer time-lapse seismic data that second embodiment is provided.Fig. 2 is that a kind of sea of the application is dragged
The flow chart of the second embodiment of the construction method of cable time-lapse seismic data, although flow, which is described below, to be included going out with particular order
Existing multiple operations, but it should be clearly understood that these processes can include more or less operations, these operations can be suitable
Sequence is performed or parallel execution.As shown in Fig. 2 the embodiment includes：
First phase time-lapse seismic data and second phase time-lapse seismic data are obtained in advance；Travel through the first phase time-lapse seismic
Each shot point in data, operations described below is performed to each shot point in the first phase time-lapse seismic data：
S210：The time-lapse seismic data of the first shot point are obtained from the first phase time-lapse seismic data.
S220：It is determined that the second phase time-lapse seismic data in default circle scope, the default circle is included with the first bombard
The position of point is the center of circle, and using the shot point error threshold that pre-sets as the circle of radius；
Each big gun inspection pair in the time-lapse seismic data of first shot point is traveled through, to each big gun in first shot point
Inspection is to performing operations described below to acquisition third phase time-lapse seismic data：
S230：Obtain in the time-lapse seismic data of first shot point the first bombard inspection to information.
S240：Judge in the second phase time-lapse seismic data in the default round scope big gun inspection to information whether with institute
State the first bombard inspection to information phase.
In certain embodiments, when judge the big gun in the second phase time-lapse seismic data in the default round scope inspection pair
Information and the first bombard examine to information match when, step S250 can be performed；When judging the default round scope
Big gun inspection in interior second phase time-lapse seismic data to information and the first bombard examine to information matches when, step can be performed
Rapid S260.
S250：When judged result for matching when, by the second phase time-lapse seismic data in the default round scope with institute
State the first bombard inspection to information match big gun inspection to information as the time-lapse seismic data after structure.
In certain embodiments, when judge the big gun in the second phase time-lapse seismic data in the default round scope inspection pair
Information and the first bombard examine to information match when, can be by the second phase time-lapse seismic number in the default round scope
In with the first bombard examine to information match big gun inspection to information be used as the time-lapse seismic data after structure.
S260：When judged result is mismatches, selected from the second phase time-lapse seismic data in the default round scope
Take meet preparatory condition big gun inspection to information as the time-lapse seismic data after structure.
As can be seen here, the technical side that a kind of embodiment of construction method of marine streamer time-lapse seismic data of the application is provided
Case by by each geophone station in each shot point in first phase time-lapse seismic data successively with second phase time-lapse seismic number
Geophone station in is matched, and selection meets default bar from the second phase time-lapse seismic data in the default round scope
Part big gun inspection to information be used as the time-lapse seismic data after structure.Time-lapse seismic data after the structure of acquisition have good
Uniformity is gathered, there is good repeatability with the first phase time-lapse seismic data.This feature is beneficial to that follow-up obtain can be with
Determine flow of fluid and the caused difference seismic response of fluid composition change in reservoir.Compared with prior art, this Shen is utilized
Please embodiment provide technical scheme can improve the repeatability of two phase time-lapse seismic data, so as to accurately reflect storage beneficial to acquisition
Flow of fluid and the caused difference geological data of fluid composition change, are provided with to formulate or updating oil and gas development scheme in layer
The foundation of effect.
On the other hand the application also provides a kind of embodiment of the construction device of marine streamer time-lapse seismic data, and Fig. 3 is
A kind of schematic diagram of the construction device for marine streamer time-lapse seismic data that the embodiment of the present application is provided, with reference to accompanying drawing 3, the dress
Putting 300 can include：
Presetting module 310, can be used for obtaining first phase time-lapse seismic data and second phase time-lapse seismic data in advance；Time
It is every in each shot point gone through in the first phase time-lapse seismic data, and the time-lapse seismic data of traversal first shot point
The inspection pair of one big gun.
First data acquisition module 320, can be used for obtaining the first shot point from the first phase time-lapse seismic data
Time-lapse seismic data.
First determining module 330, is determined for the second phase time-lapse seismic data in default circle scope, described default
Circle is included using the position of first shot point as the center of circle, and using the shot point error threshold that pre-sets as the circle of radius.
Second data acquisition module 340, can be used for obtaining the first bombard in the time-lapse seismic data of first shot point
Examine to information.
Judge module 350, the big gun inspection that can be used for judging in the second phase time-lapse seismic data in the default round scope
To information whether with the first bombard examine to information match.
First data processing module 360, when can be used for the judged result when the judge module for matching, from described pre-
If circle scope in second phase time-lapse seismic data in choose meet preparatory condition big gun inspection to information as after structure when
Move geological data.
Fig. 4 is a kind of another signal of the construction device for marine streamer time-lapse seismic data that the embodiment of the present application is provided
Figure.In a preferred embodiment, with reference to accompanying drawing 4, described device 300 can also include：
Second data processing module 370, can be used for when the judged result of the judge module is matching, will be described pre-
If circle scope in second phase time-lapse seismic data in the first bombard examine to information match big gun inspection to information make
For the time-lapse seismic data after structure.
In a preferred embodiment, the first data processing module 360 can include：
Computing unit, can be used for calculating the first bombard inspection to shot point with second phase in the default round scope when
The the second big gun inspection moved in geological data shot point shot point distance, calculate first bombard inspection to geophone station and described the
Second Artillery Force's inspection geophone station geophone interval from calculating the shot point distance with the geophone interval from sum；
Data processing unit, can be used for the shot point error threshold pre-set described in being less than when shot point distance, and
When the geophone interval is from less than the geophone station error threshold pre-set, and the shot point distance with the geophone interval from it
During with examining less than the big gun pre-set to error threshold, by the minimum shot point distance of numerical value with the geophone interval from sum
Corresponding big gun inspection to information be used as the time-lapse seismic data after structure.
In a preferred embodiment, the shot point error threshold is set to 70m.
In a preferred embodiment, the geophone station error threshold is set to 50m.
In a preferred embodiment, the big gun inspection is set to 100m to error threshold.
As can be seen here, the embodiment of a kind of construction method of marine streamer time-lapse seismic data of the application and device is provided
Technical scheme by by each geophone station in each shot point in first phase time-lapse seismic data successively with second phase time shift
Geophone station in geological data is matched, and is chosen and met from the second phase time-lapse seismic data in the default round scope
Preparatory condition big gun inspection to information be used as the time-lapse seismic data after structure.Time-lapse seismic data after the structure of acquisition have
Good collection uniformity, has good repeatability with the first phase time-lapse seismic data.This feature is beneficial to follow-up obtain
To difference seismic response caused by flow of fluid and fluid composition change can be determined in reservoir.Compared with prior art, it is sharp
The technical scheme provided with the embodiment of the present application can improve the repeatability of two phase time-lapse seismic data, so that accurate beneficial to obtaining
Reflect flow of fluid and the caused difference geological data of fluid composition change in reservoir, to formulate or updating oil and gas development scheme
Effective foundation is provided.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
Between the difference of other embodiment, each embodiment identical similar part mutually referring to.It is real especially for system
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application have it is many deformation and
Change is without departing from spirit herein, it is desirable to which appended claim includes these deformations and changed without departing from the application's
Spirit.
Claims (8)
1. a kind of construction method of marine streamer time-lapse seismic data, it is characterised in that methods described includes：First is obtained in advance
Phase time-lapse seismic data and second phase time-lapse seismic data；Each shot point in the first phase time-lapse seismic data is traveled through, it is right
Each shot point in the first phase time-lapse seismic data performs operations described below：
The time-lapse seismic data of the first shot point are obtained from the first phase time-lapse seismic data；
It is determined that the second phase time-lapse seismic data in default circle scope, the default circle include using the position of first shot point as
The center of circle, and using the shot point error threshold that pre-sets as the circle of radius；
Each big gun inspection pair in the time-lapse seismic data of first shot point is traveled through, to each big gun inspection pair in first shot point
Perform operations described below：
Obtain in the time-lapse seismic data of first shot point the first bombard inspection to information；
Judge in the second phase time-lapse seismic data in the default round scope big gun inspection to information whether with the first bombard
Examine to information match；
When judged result is mismatches, chosen from the second phase time-lapse seismic data in the default round scope and meet default
Condition big gun inspection to information be used as the time-lapse seismic data after structure；
When judged result is matching, it will be examined in the second phase time-lapse seismic data in the default round scope with the first bombard
To information match big gun inspection to information be used as the time-lapse seismic data after structure；
Wherein, the big gun inspection pair for meeting preparatory condition is chosen in the second phase time-lapse seismic data out of described default round scope
Information include as the time-lapse seismic data after structure：
Calculate first bombard inspection to shot point and the second big gun in the second phase time-lapse seismic data in the default round scope
Examine shot point shot point distance, calculate first bombard inspection to geophone station and second big gun inspection to geophone station between
Geophone interval is from the calculating shot point distance is with the geophone interval from sum；
When shot point distance is less than the shot point error threshold pre-set, and the geophone interval is from less than pre-setting
Geophone station error threshold, and the shot point distance and the geophone interval be less than the big gun pre-set from sum and examine to error threshold
During value, using the minimum shot point distance of numerical value and the geophone interval from the big gun inspection corresponding to sum to information be used as structure
Time-lapse seismic data afterwards.
2. according to the method described in claim 1, it is characterised in that the shot point error threshold is set to 70m.
3. according to the method described in claim 1, it is characterised in that the geophone station error threshold is set to 50m.
4. according to the method described in claim 1, it is characterised in that the big gun inspection is set to 100m to error threshold.
5. a kind of construction device of marine streamer time-lapse seismic data, it is characterised in that described device includes：
Presetting module, for obtaining first phase time-lapse seismic data and second phase time-lapse seismic data in advance；Travel through described first
Each big gun inspection pair in each shot point in phase time-lapse seismic data, and the time-lapse seismic data of the first shot point of traversal；
First data acquisition module, the time-lapse seismic number for obtaining the first shot point from the first phase time-lapse seismic data
According to；
First determining module, for determining the second phase time-lapse seismic data in default circle scope, the default circle is included with institute
The position for stating the first shot point is the center of circle, and using the shot point error threshold that pre-sets as the circle of radius；
In second data acquisition module, the time-lapse seismic data for obtaining first shot point the first bombard inspection to information；
Judge module, for judge the big gun in the second phase time-lapse seismic data in the default round scope inspection to information whether
With the first bombard examine to information match；
First data processing module, for when the judged result of the judge module is mismatches, from the default round scope
In interior second phase time-lapse seismic data choose meet preparatory condition big gun inspection to information as the time-lapse seismic number after structure
According to；
Second data processing module, for when the judged result of the judge module is matching, by the default round scope
Second phase time-lapse seismic data in the first bombard examine to information match big gun inspection to information as structure after
Time-lapse seismic data；
Wherein, the first data processing module includes：
Computing unit, for calculate first bombard inspection to shot point and the second phase time-lapse seismic number in the default round scope
The second big gun inspection in shot point shot point distance, calculate first bombard inspection to geophone station and second big gun inspection pair
Geophone station between geophone interval from calculating the shot point distance with the geophone interval from sum；
Data processing unit, for being less than the shot point error threshold pre-set, and the detection when shot point distance
When point distance is less than the geophone station error threshold pre-set, and the shot point distance and the geophone interval from sum be less than
When the big gun pre-set is examined to error threshold, by the minimum shot point distance of numerical value with the geophone interval from corresponding to sum
Big gun inspection to information be used as the time-lapse seismic data after structure.
6. device according to claim 5, it is characterised in that the shot point error threshold is set to 70m.
7. device according to claim 5, it is characterised in that the geophone station error threshold is set to 50m.
8. device according to claim 5, it is characterised in that the big gun inspection is set to 100m to error threshold.
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| US9772415B2 (en) * | 2011-08-05 | 2017-09-26 | Saudi Arabian Oil Company | Correcting time lapse seismic data for overburden and recording effects |
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| WO2009123471A1 (en) * | 2008-03-31 | 2009-10-08 | Statoilhydro Asa | Method for reflection time shift matching a first and a second set of seismic reflection data |
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