CN108919344A - Frequency dividing suitable for layered medium is configured inversion method - Google Patents
Frequency dividing suitable for layered medium is configured inversion method Download PDFInfo
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
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- G—PHYSICS
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
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Abstract
The invention discloses a kind of frequency dividings suitable for layered medium to be configured inversion method, including：Low-frequency range impedance body is established using Kriging regression; intermediate frequency impedance body is converted by seismic data using colored inversion; utilize the configuration modeling controlled based on seismic waveform similarity and Method of Stochastic; it is configured inversion method; high-frequency resistance body is established, low frequency, intermediate frequency, high-frequency resistance modeling or the method for inverting are isolated out, then by three parts impedance body integrator; high-resolution impedance body is obtained, realizes thin-inter bed reservoir prediction.According to the technical solution of the present invention, randomness and unstability in Interpolation Process can be caused less due to well by efficiently solving high band, improved the stability and resolution ratio of inversion result, improved efficiency of inverse process.
Description
Technical field
The present invention relates to seismology technical fields more particularly to a kind of frequency dividing suitable for layered medium to be configured inverting side
Method.
Background technique
Geostatistical inversion principle, low frequency part obtain low frequency variogram by well logging low-frequency data statistical variation,
The conventional determinated back analysis method (Sparse Pulse Inversion) of intermediate-frequency section application obtains wave resistance antibody, to understand substantially dividing for reservoir
Cloth, and for seeking intermediate frequency variogram.High frequency section obtains high frequency from well point and is deteriorated, and is closed by three parts variogram
At, by stochastic simulation generate well between wave impedance, by the wave impedance of Whole frequency band be converted into reflection coefficient and with determinated back analysis side
The wavelet that method acquires carries out convolution and generates synthetic seismogram, by iterating until synthetic seismogram reaches with seismic traces
A degree of matching, inverting obtain multiple equiprobable Wave Impedance Data Volumes.
Conventional geostatistics are there are problem, and first, counting reasonable variogram need to number and distribution to fixed well
It is required that stringent, it is desirable that well number is more and is evenly distributed, fast for cross directional variations or variation of lithological complex area precision of prediction is inclined
It is low.Second, for high frequency stochastic simulation part, conventional geological statistics need stochastic simulation to be up to several hundred frequency range (
High cut-off frequency is shaken less than 100Hz).100Hz frequencies above variation of information Function Fitting difficulty is big, and effect is undesirable, inversion result with
Machine is strong, and computational efficiency is low.
Summary of the invention
At least one of regarding to the issue above, the present invention provides a kind of frequency dividings suitable for layered medium to be configured inverting
Method, using the thought of frequency dividing building, by it is low, in, the method for middle high, four part impedance modelings of hyperfrequency or inverting isolates
It opens, each part is calculated using different modelings and inversion method, improves the stabilization of inversion result, obtains high-resolution
The impedance body of rate realizes thin-inter bed reservoir prediction.The random of variogram statistics is replaced using seismic waveform similarity degree interpolation
Simulation enhances the stability of a part of result in high-frequency information, has more characteristics of seismic, continuity in inversion result plane
It is better than conventional geostatistics efficiency of inverse process.
To achieve the above object, the present invention provides a kind of frequency dividings suitable for layered medium to be configured inversion method, including：
Step S101 is filtered the well curve of true well to obtain low-frequency impedance, counts low frequency variogram, and utilize Kriging regression
Method carries out interpolation modeling, obtains low-frequency impedance body；Step S102 obtains intermediate frequency impedance body using colored inversion method, and will be described
Intermediate frequency impedance body and the low-frequency impedance body synthesize absolute wave impedance body；Step S103 extracts the well bypass road of the true well
Well impedance curve simultaneously filters acquisition high-frequency resistance to form Jing Ji, and the well bypass road and serial number of pseudo- well are extracted in seismic data grid
Generate the random walk that inverting is carried out to pseudo- well；Step S104, according to the random walk sequence and using the Jing Ji into
Row interpolation modeling obtains the medium-high frequency information to be inserted for putting pseudo- well；Step S105, according to the random walk sequence to the pseudo- well
The stochastic simulation of hyperfrequency is carried out, Bayesian Decision rule is established with the minimum constraint of composite traces error residual error, to use
Multiple equiprobability results that MCMC algorithm carries out optimizing acquisition are averaged to obtain hyperfrequency information；Step S106, with described
The Jing Ji will be added after the medium-high frequency information and the synthesis of hyperfrequency information of all pseudo- wells in the sequence of random walk；Step
S107 carries out inverting to the remaining road in the seismic data grid with step S104 and step S105 method；Step S108, with
The impedance information of the absolute wave impedance body and impedance information of high-frequency resistance matches respectively with true well corresponding frequency band and group is combined into
Whole frequency band impedance carries out the seismic data grid to form high-resolution inversion body by road iteration；Wherein, the Frequency
Range is 0≤f < 10Hz, and the intermediate frequency is 10≤f < 80Hz, and the high frequency includes the medium-high frequency and the hyperfrequency, institute
Stating medium-high frequency is 80≤f < 200Hz, and the hyperfrequency is 200≤f < 500Hz.
In the above-mentioned technical solutions, it is preferable that in the step S104, utilize the well bypass road to be inserted for putting pseudo- well and described true
The well bypass road similarity and distance of well are weight, are modeled using the interpolation that the Jing Ji carries out medium-high frequency, and acquisition is to be inserted to put pseudo- well
Medium-high frequency information.
In the above-mentioned technical solutions, it is preferable that according to the random walk sequence to the pseudo- well in the step S105
The stochastic simulation for carrying out hyperfrequency specifically includes：It is successively simulated by the random walk sequence, is counted and logged well by probability analysis
The mean value and variance of hyperfrequency instruct the stochastic simulation of hyperfrequency in data, while being referred to using earthquake plane variate difference analysis
Lead the simulation that the plane of high frequency extends.
In the above-mentioned technical solutions, it is preferable that in the step S106, will first be generated with the sequence of the random walk
The medium-high frequency information and hyperfrequency information of pseudo- well synthesize and are added to the well and concentrates, by path points all in the random walk
Iterative inversion is completed, to complete the expansion of the Jing Ji.
Compared with prior art, beneficial effects of the present invention are：Using the thought of frequency dividing building, by it is low, in, it is middle high, super
The method of four part impedance modelings of high frequency or inverting is isolated out, each part is carried out using different modelings and inversion method
It calculates, improves the stabilization of inversion result, obtain high-resolution impedance body, realize thin-inter bed reservoir prediction.Utilize seismic wave
Shape similarity degree interpolation replaces the stochastic simulation of variogram statistics, enhances the stability of a part of result in high-frequency information,
Characteristics of seismic is had more in inversion result plane, continuity is better than conventional geostatistics efficiency of inverse process.
Detailed description of the invention
Fig. 1 is the flow chart of the disclosed frequency dividing configuration inversion method suitable for layered medium of an embodiment of the present invention；
Fig. 2 is the process signal of the disclosed frequency dividing configuration inversion method suitable for layered medium of an embodiment of the present invention
Block diagram；
Fig. 3 is that the frequency spectrum of the disclosed frequency dividing configuration inverting of an embodiment of the present invention constructs form schematic diagram.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention is described in further detail with reference to the accompanying drawing：
As shown in Figure 1 to Figure 3, a kind of frequency dividing suitable for layered medium provided according to the present invention is configured inversion method,
Including：Step S101 carries out bandpass filtering to the well curve of true well and obtains low-frequency impedance (0~10Hz), counts low frequency variation letter
Number, and interpolation modeling is carried out using Kriging regression method, obtain low-frequency impedance body；Step S102, determinated back analysis part utilize
Colored inversion method obtains intermediate frequency impedance body (10~80Hz), and intermediate frequency impedance body and low-frequency impedance body are synthesized absolute wave impedance
Body (frequency range 0Hz~80Hz)；Step S103, data preparation extract the well impedance curve of the well bypass road of true well and filter and obtain
High-frequency resistance (80~500Hz of frequency range) is obtained to form Jing Ji, by the well that pseudo- well is extracted in seismic data grid (50*50)
Road and serial number generate the random walk that inverting is carried out to pseudo- well；Step S104, pseudo- well are configured interpolation, i.e. the interpolation of medium-high frequency is built
Mould, implementation method are：It is weight using the well bypass road similarity and distance of the well bypass road to be inserted for putting pseudo- well and true well, utilizes Jing Ji
The interpolation modeling for carrying out medium-high frequency (80~200Hz of frequency range) obtains the medium-high frequency information to be inserted for putting pseudo- well；Step S105,
The stochastic simulation of pseudo- well hyperfrequency (200~500Hz of frequency range)：According to random walk sequence to pseudo- well carry out hyperfrequency with
Machine simulation establishes Bayesian Decision rule, using MCMC (Markov Chain with the minimum constraint of composite traces error residual error
Monte Carlo, Markov chain Monte-Carlo) algorithm progress optimizing, it obtains multiple equiprobability results and is averaged, surpassed
High-frequency information；After the medium-high frequency information of pseudo- well and the synthesis of hyperfrequency information Jing Ji is added, with random walk in step S106
Sequentially, the pseudo- well first generated is added to the Jing Ji of true well, influences the interpolation result of next path point puppet well, all path points are anti-
After the completion of drilling, Jing Ji expansion is finished；Step S107, with step S104 and step S105 method to the residue in seismic data grid
Road carries out inverting；Step S108, with the resistance of the impedance information of 0~80Hz absolute wave impedance body and the high-frequency resistance of 80~500Hz
Anti- information is matched with the variance of true well corresponding frequency band and mean value respectively, and group is combined into the Whole frequency band impedance of 0~500Hz, right
Seismic data grid carries out forming high-resolution inversion body by road iteration；Wherein, Frequency range is 0≤f < 10Hz, in
Frequency is 10≤f < 80Hz, and high frequency includes medium-high frequency and hyperfrequency, and medium-high frequency is 80≤f < 200Hz, and hyperfrequency is 200≤f <
500Hz。
In the above-described embodiments, the thought for dividing statistical modeling and weighted band_wise, is different from conventional geostatistics
The thought for dividing statistical variation, integrator inverting, is embodied as：Low frequency is established using Kriging regression in step s101
Section impedance body converts intermediate frequency impedance body for seismic data using colored inversion in step S102, and step S103-S107 is utilized
Earthquake configuration inversion method establishes high-frequency resistance body, and three parts impedance body integrator is obtained high-resolution by final step S108
The impedance body of rate realizes thin-inter bed reservoir prediction.
Wherein, in the inverting of high frequency configuration, step S103, the pseudo- well building in S104 and S105, it is known that well and point to be inserted away from
From smaller, influence degree is bigger, and well distribution consistency degree also determines the stability of surrounding interpolation point, and the building of pseudo- well ensure that
Primary data is all uniformly distributed in seismic volume whole network line, efficiently solve high band can be caused less due to well in Interpolation Process with
Machine and unstability.High frequency be configured inverting in be configured interpolation thought, basis be think lithology, the variation of physical property will lead to
The variation of seismic data frequency, phase, amplitude, the form of waveform and the combination of reservoir are related, and in other words waveform is similar, surveys
Well curve is similar, and seismic waveform similarity degree can determine whether log extrapolation degree.Therefore using the phase of seismic waveform structure
The extrapolation of well logging high-frequency data is controlled like degree.Described in step S104, using seismic waveform similarity and to anti-
It drills and a little carries out interpolation method at a distance from well point to calculate weight, utilize intermediate frequency certainty anti-instead of in geostatistical inversion
Variation and the high frequency well logging drilled, which are deteriorated, calculates weight progress interpolation method, avoids high frequency well logging variogram and calculates randomness
By force, the problem of plane extrapolability difference.
Specifically, frequency dividing configuration inverting is according to the thought of frequency dividing building, by it is low, in, middle high, four part impedances of hyperfrequency
The method of modeling or inverting is isolated out, each part is calculated using different modelings and inversion method, and single inverting
Method is not wide in range to data relevance grade, be easy to cause the unstable of inversion result.Low-frequency stability is strong, utilizes Kriging regression solution
Certainly；Intermediate frequency information can stablize acquisition in the seismic data, can effectively keep the intermediate frequency of earthquake to believe using colored inversion method
Breath；Medium-high frequency is effectively extrapolated using seismic data configural characteristic and carries out interpolation modeling；Hyperfrequency information randomness is strong, nothing in earthquake
Method obtains, and is obtained using hyperfrequency stochastic simulation inversion method in log data.Medium-high frequency is configured in modeling method, utilizes earthquake
Waveform similarity degree interpolation replaces the stochastic simulation of variogram statistics, enhances the stabilization of a part of result in high-frequency information
Property, characteristics of seismic is had more in inversion result plane, continuity is better than conventional geostatistics efficiency of inverse process.
The above is embodiments of the present invention, and the frequency dividing configuration suitable for layered medium proposed according to the present invention is anti-
Drill method, using the thought of frequency dividing building, by it is low, in, the method for middle high, four part impedance modelings of hyperfrequency or inverting isolates
It opens, each part is calculated using different modelings and inversion method, improves the stabilization of inversion result, obtains high-resolution
The impedance body of rate realizes thin-inter bed reservoir prediction.The random of variogram statistics is replaced using seismic waveform similarity degree interpolation
Simulation enhances the stability of a part of result in high-frequency information, has more characteristics of seismic, continuity in inversion result plane
It is better than conventional geostatistics efficiency of inverse process.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of frequency dividing suitable for layered medium is configured inversion method, which is characterized in that including：
Step S101 is filtered the well curve of true well to obtain low-frequency impedance, counts low frequency variogram, and utilize Ke Lijin
Interpolation method carries out interpolation modeling, obtains low-frequency impedance body；
Step S102 obtains intermediate frequency impedance body using colored inversion method, and by the intermediate frequency impedance body and the low-frequency impedance body
Synthesize absolute wave impedance body；
Step S103, extracts the well impedance curve of the well bypass road of the true well and filters and obtain high-frequency resistance to form Jing Ji,
Well bypass road and serial number gencration that pseudo- well is extracted in seismic data grid carry out the random walk of inverting to pseudo- well；
Step S104 according to the sequence of the random walk and carries out interpolation modeling using the Jing Ji, obtains the pseudo- well of point to be inserted
Medium-high frequency information；
Step S105 is carried out the stochastic simulation of hyperfrequency to the pseudo- well according to the random walk sequence, is missed with composite traces
Bayesian Decision rule is established in the poor minimum constraint of residual error, to the multiple equiprobability results for carrying out optimizing acquisition using MCMC algorithm
It is averaged to obtain hyperfrequency information；
Step S106 is synthesized the medium-high frequency information of all pseudo- wells and hyperfrequency information with the sequence of the random walk
After the Jing Ji is added；
Step S107 carries out inverting to the remaining road in the seismic data grid with step S104 and step S105 method；
Step S108, with the impedance information of the absolute wave impedance body and the impedance information of high-frequency resistance frequency corresponding with true well respectively
Section matches and group is combined into Whole frequency band impedance, carries out forming high-resolution inversion body by road iteration to the seismic data grid；
Wherein, the Frequency range is 0≤f < 10Hz, and the intermediate frequency is 10≤f < 80Hz, and the high frequency includes described
Medium-high frequency and the hyperfrequency, the medium-high frequency are 80≤f < 200Hz, and the hyperfrequency is 200≤f < 500Hz.
2. the frequency dividing according to claim 1 suitable for layered medium is configured inversion method, which is characterized in that the step
In S104, it is weight using the well bypass road similarity and distance of the well bypass road to be inserted for putting pseudo- well and the true well, utilizes the well
Collection carries out the interpolation modeling of medium-high frequency, obtains the medium-high frequency information to be inserted for putting pseudo- well.
3. the frequency dividing according to claim 1 suitable for layered medium is configured inversion method, which is characterized in that the step
It is specifically included in S105 according to the stochastic simulation that the random walk sequence carries out hyperfrequency to the pseudo- well：
It is successively simulated by the random walk sequence, the mean value and variance pair of hyperfrequency in log data is counted by probability analysis
The stochastic simulation of hyperfrequency is instructed, while passing through the plane variate difference analysis of seismic data, and radio-frequency component plane is instructed to extend
Simulation.
4. the frequency dividing according to claim 1 suitable for layered medium is configured inversion method, which is characterized in that the step
In S106, the medium-high frequency information of the pseudo- well first generated and hyperfrequency information are synthesized and is added to the sequence of the random walk
The well is concentrated, and path point iterative inversions all in the random walk is completed, to complete the expansion of the Jing Ji.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444864A (en) * | 2019-08-28 | 2021-03-05 | 中国石油化工股份有限公司 | Thin-layer high-resolution inversion method and storage medium |
| CN112784379A (en) * | 2021-03-09 | 2021-05-11 | 重庆邮电大学 | Optimization design method of impeller rotor system |
| CN113917529A (en) * | 2020-07-07 | 2022-01-11 | 中国石油化工股份有限公司 | Wave impedance inversion method, wave impedance inversion device, storage medium and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570066A (en) * | 2013-10-10 | 2015-04-29 | 中国石油天然气股份有限公司 | Construction Method of Seismic Inversion Low-Frequency Model |
| CN105425289A (en) * | 2015-10-29 | 2016-03-23 | 中国石油天然气集团公司 | Method and device of determining low frequency wave impedance |
| WO2016044538A1 (en) * | 2014-09-19 | 2016-03-24 | Conocophillips Company | Bandwidth extension beyond the vibrator sweep signal via a constrained simultaneous multiple vibrator inversion |
| CN105891888A (en) * | 2016-03-28 | 2016-08-24 | 吉林大学 | Multi-domain frequency-division parallel multi-scale full-waveform inversion method |
| CN106707339A (en) * | 2016-11-22 | 2017-05-24 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Depth domain phase-control inversion method |
-
2018
- 2018-03-30 CN CN201810293307.3A patent/CN108919344B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570066A (en) * | 2013-10-10 | 2015-04-29 | 中国石油天然气股份有限公司 | Construction Method of Seismic Inversion Low-Frequency Model |
| WO2016044538A1 (en) * | 2014-09-19 | 2016-03-24 | Conocophillips Company | Bandwidth extension beyond the vibrator sweep signal via a constrained simultaneous multiple vibrator inversion |
| CN105425289A (en) * | 2015-10-29 | 2016-03-23 | 中国石油天然气集团公司 | Method and device of determining low frequency wave impedance |
| CN105891888A (en) * | 2016-03-28 | 2016-08-24 | 吉林大学 | Multi-domain frequency-division parallel multi-scale full-waveform inversion method |
| CN106707339A (en) * | 2016-11-22 | 2017-05-24 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Depth domain phase-control inversion method |
Non-Patent Citations (2)
| Title |
|---|
| 于建国，等: "分频反演方法及应用", 《石油地球物理勘探》 * |
| 张繁昌，等: "叠前地震道集AVA多频信息同时反演", 《石油物探》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444864A (en) * | 2019-08-28 | 2021-03-05 | 中国石油化工股份有限公司 | Thin-layer high-resolution inversion method and storage medium |
| CN113917529A (en) * | 2020-07-07 | 2022-01-11 | 中国石油化工股份有限公司 | Wave impedance inversion method, wave impedance inversion device, storage medium and electronic equipment |
| CN112784379A (en) * | 2021-03-09 | 2021-05-11 | 重庆邮电大学 | Optimization design method of impeller rotor system |
| CN112784379B (en) * | 2021-03-09 | 2023-05-23 | 重庆邮电大学 | Optimal design method of impeller rotor system |
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