CN105242318A - Method and apparatus for determining a communicating relation of sand bodies - Google Patents
Method and apparatus for determining a communicating relation of sand bodies Download PDFInfo
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Abstract
The application body provides a method and apparatus for determining a communicating relation of sand bodies. The method includes the steps: establishing a pre-stack time migration speed model of a to-be-detected region according to logging data and earthquake data of the to-be-detected region; determining a pre-stack time migration profile according to the pre-stack time migration speed model; extracting breakpoints with the preset quantity on the pre-stack time migration profile, combining the breakpoints with the preset quantity into a fault on the pre-stack time migration profile, and forming the pre-stack time migration profile with the fault; establishing an isochronal stratigraphic framework for the pre-stack time migration profile with the fault, and determining a sand body communicating model according to the isochronal stratigraphic framework; and determining a communicating relation of sand bodies on the basis of the sand body communicating model. According to the embodiment of the invention, the identification precision for the communicating relation of sand bodies can be improved.
Description
Technical field
The application relates to petroleum and gas geology and exploration technical field, particularly a kind of method and device determining sand body connected relation.
Background technology
Hydrocarbon-bearing pool long-term injecting water is developed, and cause flow field, underground to become complex, the practicable of chemical flooding geologic body is the important guarantee obtaining chemical flooding effect.The problem that between, sand body stacked for fan delta deposition many phases sand body, connected relation is unclear, needs the research stacked sand body seismogeology integration of many phases being carried out to more fine description.Such as, can instruct based on seismic waveform analysis, set up target correlation of sand bodies pattern, fine description sand body stacked relation and connecting degree, and carry out the development effectiveness regulating and controlling to improve further chemical flooding on this basis.
Stacked sand body seismogeology integration of many phases fine description is the important evidence of the popularization of chemical flooding technology scale and suitability for industrialized production.Based on high resolution processing technique, set up the well shake of set of system in conjunction with the meticulous recognition technology method of rudimentary sequence minor fault, explore the meticulous sign of dam, leading edge river sand body, technical support is provided for chemical flooding producing and expanding deployment, serve directiveness effect to effective enforcement of the economic aspect of chemical flooding, the research also for continuing to improve sandstone oil reservoir recovery ratio provides beneficial support simultaneously.
At present, the reservoir characterization technology of meandering river is substantially ripe supporting, but fan-delta front plane distribution is extensive, longitudinally many phases are stacked, the configuration of its reservoir inside and meticulous depiction still face very large difficulty, especially how accurately determine the connectedness of sand body, not yet propose effective settling mode at present.
Above it should be noted that, just conveniently to the technical scheme of the application, clear, complete explanation is carried out to the introduction of technical background, and facilitate the understanding of those skilled in the art to set forth.Only can not think that technique scheme is conventionally known to one of skill in the art because these schemes have carried out setting forth in the background technology part of the application.
Summary of the invention
The object of the embodiment of the present application is to provide a kind of method and the device of determining sand body connected relation, to improve the accuracy of identification of sand body connected relation.
What the embodiment of the present application provided a kind ofly determines that the method for sand body connected relation and device are achieved in that
Determine a method for sand body connected relation, comprising:
Utilize log data and the geological data in region to be detected, set up the pre-stack time migration rate pattern in described region to be detected;
According to described pre-stack time migration rate pattern, determine the pre-stack time migration section in described region to be detected;
Described pre-stack time migration section extracts the breakpoint of predetermined number, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, form the pre-stack time migration section with tomography;
Chronostratigraphic architecture is set up to the described pre-stack time migration section with tomography, and is communicated with model according to described chronostratigraphic architecture determination sand body;
Be communicated with model according to described sand body, determine the connected relation of sand body.
Determine a device for sand body connected relation, comprising:
Pre-stack time migration velocity model building unit, is used for utilizing log data and the geological data in region to be detected, sets up the pre-stack time migration rate pattern in described region to be detected;
Pre-stack time migration section determining unit, is used for, according to described pre-stack time migration rate pattern, determining the pre-stack time migration section in described region to be detected;
Tomography determining unit, is used for extracting the breakpoint of predetermined number on described pre-stack time migration section, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, form the pre-stack time migration section with tomography;
Chronostratigraphic architecture sets up unit, is used for setting up chronostratigraphic architecture to the described pre-stack time migration section with tomography;
Sand body is communicated with model determining unit, is used for being communicated with model according to described chronostratigraphic architecture determination sand body;
Sand body connected relation determining unit, is used for being communicated with model according to described sand body, determines the connected relation of sand body.
A kind of method and device determining sand body connected relation that the embodiment of the present application provides, first pre-stack time migration rate pattern can be set up, and according to described pre-stack time migration rate pattern determination pre-stack time migration section, thus the structural attitude in region to be detected can be specified.Then can specify the position of breakpoint on described pre-stack time migration section, thus utilize the breaking point assemblage of predetermined number to go out tomography on described pre-stack time migration section, thus mating of stratum characteristic and structural attitude can be realized.Finally can utilize the method setting up chronostratigraphic architecture, the pre-stack time migration section with tomography is analyzed, determine multiple models that sand body is communicated with, thus multiple models that can be communicated with based on sand body, sand body connected relation is determined accurately.A kind of method and device determining sand body connected relation that the embodiment of the present application provides, can improve the accuracy of identification of sand body connected relation, can effectively instruct chemical flooding to regulate and control, thus can improve the benefit of chemical flooding.
With reference to explanation hereinafter and accompanying drawing, disclose in detail the particular implementation of the application, the principle specifying the application can adopted mode.Should be appreciated that, thus the embodiment of the application is not restricted in scope.In the spirit of claims and the scope of clause, the embodiment of the application comprises many changes, amendment and is equal to.
The feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitutes the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence referring to feature, one integral piece, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, one integral piece, step or assembly.
Accompanying drawing explanation
Included accompanying drawing is used to provide the further understanding to the embodiment of the present application, which constitutes a part for instructions, for illustrating the embodiment of the application, and comes together to explain the principle of the application with text description.Apparently, the accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
A kind of method determining sand body connected relation that Fig. 1 provides for the embodiment of the present application;
A kind of functional block diagram determining the device of sand body connected relation that Fig. 2 provides for the embodiment of the present application.
Embodiment
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all should belong to the scope of the application's protection.
A kind of method determining sand body connected relation that Fig. 1 provides for the embodiment of the present application.Although hereafter describe flow process to comprise the multiple operations occurred with particular order, but should have a clear understanding of, these processes can comprise more or less operation, and these operations can sequentially perform or executed in parallel (such as using parallel processor or multi-thread environment).As shown in Figure 1, described method comprises:
S1: the log data and the geological data that utilize region to be detected, sets up the pre-stack time migration rate pattern in described region to be detected.
The embodiment of the present application can on the basis of accurate formation imaging, and formation imaging is analyzed, thus can determine the connected relation of stratum medium sand body.Particularly, carry out in formation in the process of imaging, log data and the geological data in region to be detected can be utilized, carry out conventional stacking or post-stack migration to carry out formation imaging.But conventional stacking or post-stack migration are all supposed based on HORIZONTAL LAYERED MEDIUM WITH HIGH ACCURACY, the stratal configuration large for lateral speed change often cannot accurately image.Therefore, the embodiment of the present application can utilize the log data in region to be detected and geological data, sets up the pre-stack time migration rate pattern in described region to be detected.Pre-stack time migration is theoretical based on radial imaging, considers seismic event true trend in the earth formation, more accurately can react the structure on stratum for the stratal configuration that lateral speed change is large.
Pre-stack time migration can by suing for peace along the diffraction hyperbola of nonzero-offset, and the reflected energy be present in each seismic trace is playbacked to real underground position.The velocity field of pre-stack time migration then determines the curvature in summation path, therefore, and the whether accurate quality that directly can have influence on migration imaging effect of the rate pattern of pre-stack time migration.In the embodiment of the present application, find through experiment, when the rate pattern of pre-stack time migration exists 5% error, final formation imaging effect starts to be affected; When the rate pattern of pre-stack time migration reaches 10% error, final formation imaging effect has been subjected to serious impact, to such an extent as to truly can not reflect the real structure on stratum.
Therefore, the application one preferred embodiment is utilizing log data and the geological data in region to be detected, before setting up the pre-stack time migration rate pattern in described region to be detected, also need to be optimized process to the log data in described region to be detected and geological data.Particularly, the embodiment of the present application can take frequency division sound attenuation and earth's surface-consistent noise-removed technology, the phenomenon thus the skew interference such as environmental noise, random noise, surface structures and degree of covering can eliminated uneven and cause is made an arc.After process is optimized to the log data in described region to be detected and geological data, just can set up the pre-stack time migration rate pattern in described region to be detected.Particularly, described pre-stack time migration rate pattern can be set up by GeoDepth system.GeoDepth system, when setting up pre-stack time migration rate pattern, is rely on CRP road collection to even up and Residual moveout correction, and the precision of the rate pattern set up when the signal to noise ratio (S/N ratio) of log data and geological data is higher can be relatively good.But when the signal to noise ratio (S/N ratio) of log data and geological data is lower, the precision of the rate pattern of foundation is often not ideal.In addition, pre-stack time migration rate pattern can also be set up by CGG system.The CRP road collection of routine can divide into groups according to offset distance by CGG system, then can pass through successive ignition, will even up, thus energy can be made to be tending towards concentrated, and can improve the precision of rate pattern according to the offset distance Hou CRP road collection that divides into groups.But CGG system requirements formation velocity can not have obvious reversion in vertical direction, otherwise the precision of rate pattern can be had a strong impact on.Therefore, the embodiment of the present application can, according to the log data in region to be detected and geological data, select the system suitable with described analysis result to set up the pre-stack time migration rate pattern in described region to be detected.
S2: according to described pre-stack time migration rate pattern, determines the pre-stack time migration section in described region to be detected.
After establishing the pre-stack time migration rate pattern in region to be detected, the embodiment of the present application just can according to this rate pattern, determine the curvature in summation path, thus can according to the curvature in the summation path determined, diffraction hyperbola along nonzero-offset is sued for peace, thus the reflection wave be present in each seismic trace can be playbacked to real underground position, thus the pre-stack time migration section in described region to be detected can be determined.
S3: the breakpoint extracting predetermined number on described pre-stack time migration section, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, form the pre-stack time migration section with tomography.
Step S1 and S2 can determine the pre-stack time migration section in described region to be detected, can be specified the structural attitude on stratum, the fold on such as stratum and joint etc. by described pre-stack time migration section.But in order to determine the connected relation of stratum medium sand body, also need the fracture spread determining stratum.In the embodiment of the present application, the breakpoint of predetermined number can be extracted on described pre-stack time migration section, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, thus the pre-stack time migration section with tomography can be formed.
The embodiment of the present application can determine the tomography on described pre-stack time migration section by three-dimension linear analysis.Particularly, three-dimension linear analysis can by measuring the similarity degree of the seismic properties (such as waveform, amplitude, frequency, phase place etc.) between adjacent seismic trace, and described similarity degree can be represented by the correlation of seismic properties between adjacent seismic trace.After calculating the correlation of seismic properties between adjacent seismic trace, the seismic properties of seismic trace that can be corresponding using the correlation lower than predetermined threshold value is as incoherent geological data.Do not plan a successor among a small circle in, waveform character between seismic trace can change, and then cause the correlativity between the seismic trace of local and seismic trace to be undergone mutation, thus the otherness of seismic signal between adjacent seismic trace can be given prominence to, make not plan a successor among a small circle in correlation lower.First the embodiment of the present application can treat the log data of surveyed area and geological data carries out coherent analysis, generates coherent data volumes.Then can utilize the coherent data volumes of generation, the surface level of described pre-stack time migration section extracts the first planar distribution of coherence data.These breaking point assemblages extracted can by extracting the breakpoint of the predetermined number on surface level, then get up to obtain by the first planar distribution of described coherence data.First planar distribution of described coherence data can reflect the plane combination of position, reflection horizon tomography.After being extracted the first planar distribution on surface level, the embodiment of the present application can continue the breakpoint extracting predetermined number by identical method on the vertical plane of described pre-stack time migration section, and the breaking point assemblage of predetermined number on vertical plane can be got up obtain the second planar distribution on vertical plane.By combining described first planar distribution and the second planar distribution, just can obtain the tomography on described pre-stack time migration section, thus the pre-stack time migration section with tomography can be formed.
In addition, in the embodiment of the present application, ant tracer technique can also be utilized to determine the tomography on described pre-stack time migration section.Particularly, first rim detection means (such as construct smoothing processing, chaos process, make differential body etc.) can be adopted to strengthen log data and the geological data uncontinuity spatially in region to be detected, and this uncontinuity just can be considered as the embodiment of tomography.Then, can go out have in described pre-stack time migration section inwardly projecting the fracture characteristic in orientation, thus can computing be carried out based on this fracture characteristic and produce ant attribute volume.Then can carry out breakpoint extraction to described ant attribute volume, just the breaking point assemblage of extraction can be become the tomography of described pre-stack time migration section, thus the pre-stack time migration section with tomography can be formed.
S4: chronostratigraphic architecture is set up to the described pre-stack time migration section with tomography, and be communicated with model according to described chronostratigraphic architecture determination sand body.
When determining the sand body connected relation on stratum, first need to understand the total sedimentary environment in stratum and geologic background.In the embodiment of the present application, by analyzing the seismic facies on stratum, thus sedimentary environment and the geologic background on stratum can be recognized.Particularly, when the seismic facies of formation is analyzed, again can process the described pre-stack time migration section with tomography, set up the chronostratigraphic architecture meeting Based On Sequence Stratigraphic Theory, under this screen work, just can carry out the analysis of seismic facies, thus can determine that the sand body in region to be detected is communicated with model.
Chronostratigraphic architecture is set up on the basis of the described pre-stack time migration section with tomography, 3-d seismic data set during a relative geology can be produced, now deposit isochronous surface can flatten, Gu deposits landforms thus can recover, and has important help to the sand body connected relation on research stratum.In the embodiment of the present application, chronostratigraphic architecture can be set up according to following two steps to the described pre-stack time migration section with tomography:
S41: be the described coding unique with each distribution on the pre-stack time migration section of tomography, obtain the pre-stack time migration section after encoding.
The embodiment of the present application first can carry out parametrization to the described pre-stack time migration section with tomography, thus can be the described coding unique with each distribution on the pre-stack time migration section of tomography, obtains the pre-stack time migration section after encoding.Described coding uniquely can be the coordinate in space coordinates, such as described with certain point on the pre-stack time migration section of tomography, (x, y, z) such coordinate can be distributed for it.The described pre-stack time migration section with tomography is positioned at same coordinate system, thus can ensure that the coordinate of each point is all not identical.
S42: the pre-stack time migration section after described coding is carried out the conversion of parameter space territory, obtain geological data even up after pre-stack time migration section, and the pre-stack time migration section after being evened up by described geological data is defined as the described chronostratigraphic architecture corresponding with the pre-stack time migration section of tomography.
In the embodiment of the present application, the pre-stack time migration section after described coding can be carried out the conversion of UVT parameter space territory.The conversion of described UVT parameter space can be considered as each point transformation in the pre-stack time migration section after by coding in UVT parameter space.Point transformation that such as can be such by (x, y, the z) in three dimensions is the such point of (u, v, the t) in UVT parameter space.UVT parameter space can be that space evened up by a kind of geological data, wherein U and V coordinate can be ancient geoaraply coordinate, T coordinate can be time coordinate, after so the pre-stack time migration section after described coding being carried out the conversion of UVT parameter space territory, just the geological data of three-dimensional can be divided according to the time, project in the two dimensional surface that U and V coordinate formed, thus stratigraphic framework when can be formed etc.At these time in stratigraphic framework, regardless of the type (trap-down of the pre-stack time migration section interrupting layer with tomography, trap-up or strike-slip fault), the turn-off of tomography all becomes zero, thus can determine the model that in the pre-stack time migration section with tomography, sand body is communicated with easily.
The model that described sand body is communicated with can be determined by the power of the continuity of seismic reflection in chronostratigraphic architecture and seismic reflection amplitude amplitude.Particularly, the continuity of seismic reflection reflects the stability of sand-body distribution, and the power of seismic reflection amplitude then can reflect the thickness of sand body (in general amplitude is stronger, can reflect that sand body is thicker).Like this, the embodiment of the present application at least can determine that following four kinds of sand bodies are communicated with model: single middle reflection continuous type, single strong reflection continuous type, compound strong reflection continuous type, the discontinuous type of the lineups changing of the relative positions.
S5: be communicated with model according to described sand body, determine the connected relation of sand body.
The embodiment of the present application can be communicated with model according to the sand body determined, thus can determine the connected relation of sand body.Model is communicated with for determine in step S4 four kinds of sand bodies:
Single middle reflection continuous type: the oscillator intensity of seismic event is moderate, be generally continuous reflection, the seismic waveshape of reflection is stable, change is less, thus can reflect that system sand body thickness is moderate and better connective, corresponding sand body electrical property feature is similar, reservoir deposition is more stable, chemical flooding successful;
Single strong reflection continuous type: seismic event is strong amplitude continuous reflection, seismic waveshape is stable, substantially unchanged, and reflection system sand body thickness is comparatively large and connective good, and corresponding sand body electrical property feature is consistent, reservoir deposited stabilizer, chemical flooding Be very effective;
Compound strong reflection continuous type: seismic event is strong amplitude composite reflection, continuity is general, and waveform change is less, reflection thin interbed sand body, and connective general, corresponding sand body electrical property feature is comparatively similar, and the change of reservoir deposition is little, has certain chemical flooding effect;
The discontinuous type of the lineups changing of the relative positions: the wrong section of seismic event or pinching mutually, stacked, poor continuity or obviously discontinuous, the wrong section of reflection sand body or pinching mutually, stacked, corresponding sand body changes, and causes reservoir not to be communicated with, and does not substantially have chemical flooding effect.
According to the sand body connected relation determined, just can distinguish which sand body and be applicable to carrying out chemical flooding, thus the bad region of chemical flooding effect can be evaded, directive significance can be brought for actual exploration.
The embodiment of the present application also provides a kind of device determining sand body connected relation.A kind of functional block diagram determining the device of sand body connected relation that Fig. 2 provides for the embodiment of the present application.As shown in Figure 2, described device comprises:
Pre-stack time migration velocity model building unit 100, is used for utilizing log data and the geological data in region to be detected, sets up the pre-stack time migration rate pattern in described region to be detected;
Pre-stack time migration section determining unit 200, is used for, according to described pre-stack time migration rate pattern, determining the pre-stack time migration section in described region to be detected;
Tomography determining unit 300, is used for extracting the breakpoint of predetermined number on described pre-stack time migration section, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, form the pre-stack time migration section with tomography;
Chronostratigraphic architecture sets up unit 400, is used for setting up chronostratigraphic architecture to the described pre-stack time migration section with tomography;
Sand body is communicated with model determining unit 500, is used for being communicated with model according to described chronostratigraphic architecture determination sand body;
Sand body connected relation determining unit 600, is used for being communicated with model according to described sand body, determines the connected relation of sand body.
In the application one preferred embodiment, described device also comprises:
Denoising unit 000, the log data and the geological data that are used for treating surveyed area carry out denoising, obtain the log data after denoising and geological data;
Correspondingly,
Described pre-stack time migration velocity model building unit 100 can be used for utilizing the log data after the denoising in region to be detected and geological data, sets up the pre-stack time migration rate pattern in described region to be detected.
In the application one preferred embodiment, described pre-stack time migration velocity model building unit 100 specifically comprises:
GeoDepth system processing module, is used for utilizing GeoDepth system, processes, set up the pre-stack time migration rate pattern in described region to be detected to the log data in described region to be detected and geological data;
Or
CGG system processing module, is used for utilizing CGG system, processes, set up the pre-stack time migration rate pattern in described region to be detected to the log data in described region to be detected and geological data.
In the application one preferred embodiment, described chronostratigraphic architecture is set up unit 400 and is specifically comprised:
Coding assignment module, is used for, into the described coding unique with each distribution on the pre-stack time migration section of tomography, obtaining the pre-stack time migration section after encoding;
Parameter space conversion module, being used for the pre-stack time migration section after by described coding carries out the conversion of parameter space territory, obtain geological data even up after pre-stack time migration section, and the pre-stack time migration section after being evened up by described geological data is defined as the described chronostratigraphic architecture corresponding with the pre-stack time migration section of tomography.
In the application one preferred embodiment, described sand body is communicated with model determining unit 500 and specifically comprises:
Seismic event determination module, is used for being communicated with model according to the continuity of seismic reflection in described chronostratigraphic architecture and the amplitude determination sand body of seismic reflection amplitude.
A kind of method and device determining sand body connected relation that the embodiment of the present application provides, first pre-stack time migration rate pattern can be set up, and according to described pre-stack time migration rate pattern determination pre-stack time migration section, thus the structural attitude in region to be detected can be specified.Then can specify the position of breakpoint on described pre-stack time migration section, thus utilize the breaking point assemblage of predetermined number to go out tomography on described pre-stack time migration section, thus mating of stratum characteristic and structural attitude can be realized.Finally can utilize the method setting up chronostratigraphic architecture, the pre-stack time migration section with tomography is analyzed, determine multiple models that sand body is communicated with, thus multiple models that can be communicated with based on sand body, sand body connected relation is determined accurately.A kind of method and device determining sand body connected relation that the embodiment of the present application provides, can improve the accuracy of identification of sand body connected relation, can effectively instruct chemical flooding to regulate and control, thus can improve the benefit of chemical flooding.
In this manual, such as first and second such adjectives only may be used for an element or action and another element or action to distinguish, and without requiring or imply this relation or the order of any reality.When environment allows, should not be construed as one that is confined in only element, parts or step with reference to element or parts or step (s), and can be one or more etc. in element, parts or step.
With the object described, those skilled in the art are supplied to the description of the various embodiments of the application above.It is not intended to is exhaustive or is not intended to the present invention to be limited to single disclosed embodiment.As mentioned above, the various alternative and change of the application will be apparent for above-mentioned technology one of ordinary skill in the art.Therefore, although specifically discuss the embodiment of some alternatives, other embodiment will be apparent, or those skilled in the art relatively easily draw.The application is intended to be included in that of the present invention all that this had discussed substitute, amendment and change, and drops on other embodiment in the spirit and scope of above-mentioned application.
Claims (10)
1. determine a method for sand body connected relation, it is characterized in that, described method comprises:
Utilize log data and the geological data in region to be detected, set up the pre-stack time migration rate pattern in described region to be detected;
According to described pre-stack time migration rate pattern, determine the pre-stack time migration section in described region to be detected;
Described pre-stack time migration section extracts the breakpoint of predetermined number, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, form the pre-stack time migration section with tomography;
Chronostratigraphic architecture is set up to the described pre-stack time migration section with tomography, and is communicated with model according to described chronostratigraphic architecture determination sand body;
Be communicated with model according to described sand body, determine the connected relation of sand body.
2. a kind of method determining sand body connected relation as claimed in claim 1, it is characterized in that, at the described log data and the geological data that utilize region to be detected, before setting up the pre-stack time migration rate pattern in described region to be detected, described method also comprises:
Log data and the geological data for the treatment of surveyed area carry out denoising, obtain the log data after denoising and geological data;
Correspondingly,
Described log data and the geological data utilizing region to be detected, the pre-stack time migration rate pattern setting up described region to be detected specifically comprises:
Utilize the log data after the denoising in region to be detected and geological data, set up the pre-stack time migration rate pattern in described region to be detected.
3. a kind of method determining sand body connected relation as claimed in claim 1, it is characterized in that, described log data and the geological data utilizing region to be detected, the pre-stack time migration rate pattern setting up described region to be detected specifically comprises:
Utilize GeoDepth system or CGG system, the log data in described region to be detected and geological data are processed, sets up the pre-stack time migration rate pattern in described region to be detected.
4. a kind of method determining sand body connected relation as claimed in claim 1, is characterized in that, describedly sets up chronostratigraphic architecture to the described pre-stack time migration section with tomography and specifically comprises:
For the described coding unique with each distribution on the pre-stack time migration section of tomography, obtain the pre-stack time migration section after encoding;
Pre-stack time migration section after described coding is carried out the conversion of parameter space territory, obtain geological data even up after pre-stack time migration section;
Pre-stack time migration section after being evened up by described geological data is defined as the described chronostratigraphic architecture corresponding with the pre-stack time migration section of tomography.
5. a kind of method determining sand body connected relation as claimed in claim 1, is characterized in that, is describedly communicated with model according to described chronostratigraphic architecture determination sand body and specifically comprises:
Model is communicated with according to the continuity of seismic reflection in described chronostratigraphic architecture and the amplitude determination sand body of seismic reflection amplitude.
6. determine a device for sand body connected relation, it is characterized in that, described device comprises:
Pre-stack time migration velocity model building unit, is used for utilizing log data and the geological data in region to be detected, sets up the pre-stack time migration rate pattern in described region to be detected;
Pre-stack time migration section determining unit, is used for, according to described pre-stack time migration rate pattern, determining the pre-stack time migration section in described region to be detected;
Tomography determining unit, is used for extracting the breakpoint of predetermined number on described pre-stack time migration section, and the breaking point assemblage of described predetermined number is become the tomography on described pre-stack time migration section, form the pre-stack time migration section with tomography;
Chronostratigraphic architecture sets up unit, is used for setting up chronostratigraphic architecture to the described pre-stack time migration section with tomography;
Sand body is communicated with model determining unit, is used for being communicated with model according to described chronostratigraphic architecture determination sand body;
Sand body connected relation determining unit, is used for being communicated with model according to described sand body, determines the connected relation of sand body.
7. a kind of device determining sand body connected relation as claimed in claim 6, it is characterized in that, described device also comprises:
Denoising unit, the log data and the geological data that are used for treating surveyed area carry out denoising, obtain the log data after denoising and geological data;
Correspondingly,
Described pre-stack time migration velocity model building unit is used for utilizing the log data after the denoising in region to be detected and geological data, sets up the pre-stack time migration rate pattern in described region to be detected.
8. a kind of device determining sand body connected relation as claimed in claim 6, it is characterized in that, described pre-stack time migration velocity model building unit specifically comprises:
GeoDepth system processing module, is used for utilizing GeoDepth system, processes, set up the pre-stack time migration rate pattern in described region to be detected to the log data in described region to be detected and geological data;
Or
CGG system processing module, is used for utilizing CGG system, processes, set up the pre-stack time migration rate pattern in described region to be detected to the log data in described region to be detected and geological data.
9. a kind of device determining sand body connected relation as claimed in claim 6, it is characterized in that, described chronostratigraphic architecture is set up unit and is specifically comprised:
Coding assignment module, is used for, into the described coding unique with each distribution on the pre-stack time migration section of tomography, obtaining the pre-stack time migration section after encoding;
Parameter space conversion module, being used for the pre-stack time migration section after by described coding carries out the conversion of parameter space territory, obtain geological data even up after pre-stack time migration section, and the pre-stack time migration section after being evened up by described geological data is defined as the described chronostratigraphic architecture corresponding with the pre-stack time migration section of tomography.
10. a kind of device determining sand body connected relation as claimed in claim 6, is characterized in that, described sand body is communicated with model determining unit and specifically comprises:
Seismic event determination module, is used for being communicated with model according to the continuity of seismic reflection in described chronostratigraphic architecture and the amplitude determination sand body of seismic reflection amplitude.
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| CN201510651048.3A CN105242318B (en) | 2015-10-10 | 2015-10-10 | A kind of method and device for determining sand body connected relation |
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| CN109324354A (en) * | 2018-08-30 | 2019-02-12 | 中国石油天然气股份有限公司 | A kind of method, apparatus and system of determining sand body connectivity |
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| CN111752940B (en) * | 2019-03-29 | 2023-06-30 | 中国石油天然气股份有限公司 | Sand body communication relation data acquisition method and device |
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| CN106570262A (en) * | 2016-11-03 | 2017-04-19 | 中国石油化工股份有限公司 | Reservoir configuration structure description method |
| CN106570262B (en) * | 2016-11-03 | 2021-08-20 | 中国石油化工股份有限公司 | Description method of reservoir configuration structure |
| CN107884823A (en) * | 2017-11-27 | 2018-04-06 | 中国石油集团东方地球物理勘探有限责任公司 | The method for drafting and device of sand body connected graph |
| CN109324354A (en) * | 2018-08-30 | 2019-02-12 | 中国石油天然气股份有限公司 | A kind of method, apparatus and system of determining sand body connectivity |
| CN109324354B (en) * | 2018-08-30 | 2021-03-30 | 中国石油天然气股份有限公司 | Method, device and system for determining sand body connectivity |
| CN109736788A (en) * | 2018-12-10 | 2019-05-10 | 唐山冀油瑞丰化工有限公司 | A kind of experimental method for differentiating chemical flooding leading edge and involving state |
| CN111426813A (en) * | 2019-01-10 | 2020-07-17 | 中国石油天然气股份有限公司 | Method and device for determining sand body communication quality and storage medium |
| CN111752940B (en) * | 2019-03-29 | 2023-06-30 | 中国石油天然气股份有限公司 | Sand body communication relation data acquisition method and device |
| CN110456416A (en) * | 2019-08-06 | 2019-11-15 | 中国石油集团川庆钻探工程有限公司 | A kind of seismic data fold recognition methods a little |
| CN112764101A (en) * | 2019-11-04 | 2021-05-07 | 中国石油天然气集团有限公司 | Anticline structure form determination method and device based on seismic migration profile |
| CN111781659A (en) * | 2020-06-30 | 2020-10-16 | 中国石油天然气股份有限公司 | Thin-layer single-stage sand body communication relation identification method |
| CN111781659B (en) * | 2020-06-30 | 2022-10-21 | 中国石油天然气股份有限公司 | Thin-layer single-stage sand body communication relation identification method |
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