NL2021354A - 2-D Seismic Travel Time Calculation Method Based on Virtual Source Wavefront Construction - Google Patents
2-D Seismic Travel Time Calculation Method Based on Virtual Source Wavefront Construction Download PDFInfo
- Publication number
- NL2021354A NL2021354A NL2021354A NL2021354A NL2021354A NL 2021354 A NL2021354 A NL 2021354A NL 2021354 A NL2021354 A NL 2021354A NL 2021354 A NL2021354 A NL 2021354A NL 2021354 A NL2021354 A NL 2021354A
- Authority
- NL
- Netherlands
- Prior art keywords
- wavefront
- travel time
- seismic
- calculation
- rays
- Prior art date
Links
- 238000004364 calculation method Methods 0.000 title claims abstract description 50
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000005070 sampling Methods 0.000 claims description 4
- 239000002609 medium Substances 0.000 description 6
- 238000004422 calculation algorithm Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012585 homogenous medium Substances 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/303—Analysis for determining velocity profiles or travel times
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/303—Analysis for determining velocity profiles or travel times
- G01V1/305—Travel times
-
- G01V20/00—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/10—Aspects of acoustic signal generation or detection
- G01V2210/12—Signal generation
- G01V2210/125—Virtual source
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/50—Corrections or adjustments related to wave propagation
- G01V2210/57—Trace interpolation or extrapolation, e.g. for virtual receiver; Anti-aliasing for missing receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/622—Velocity, density or impedance
- G01V2210/6222—Velocity; travel time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/67—Wave propagation modeling
- G01V2210/671—Raytracing
Claims (1)
- Conclusies1. Tweedimensionale seismische reistijdberekeningswerkwijze op basis van een virtuele bron met een golffrontconstructie, met het kenmerk, dat de volgende5 stappen worden omvat:stap 1: lezen in relevante parameterbestanden en een snelheidsmodel, waarbij de parameterbestanden het rasterpuntnummer, rasterafstand, bronlocatie, traceringsstaplengte, straalhoekbereik en straalbemonsteringsinterval van het snelheidsmodel omvatten;ïo stap 2: traceren van stralen en invoegen van nieuwe stralen tijdens het traceren om de dekking van de stralen te garanderen, waarbij de essentie van het traceren van de stralen is om een kinematische straaltracering-vergelijkingsgroep op te lossen met behulp van eenRunge-Kutta-methode, zoals weergegeven in de onderstaande formule:dxt 2 — = v gp, ατ ’ A = Af ik _v-A άτ öxt fv J cx, waarin xt de locatiecomponent weergeeft, p, de traagheidscomponent weergeeft, τ de seismische reistijd weergeeft en v de seismische snelheid 20 weergeeft;stap 3; verdelen van een berekeningsruimte in een aantal vierhoeken van het golffront door middel van het berekenen van de ruimtelijke locatie-informatie van discrete punten op de verworven stralen;stap 4: beoordelen van de locatiebetrekking van het rasterpunt en de 5 vierhoek van het golffront door middel van een vectorproductmethode, en het bepalen van het rasterpunt dat zich in de vierhoek van het golffront bevindt; stap 5; berekenen van de locaties van virtuele bronnen die overeenkomen met de punten door middel van de relevante informatie van hoekpunten van de vierhoek van het golffront, en berekenen van de seismische reistijd van de io rasterpunten die zijn opgenomen in de vierhoek van het golffront op basis van de locaties van de virtuele bronnen; en stap 6: voltooien van de reistijdberekeningen van alle rasterpunten en het uitvoeren van de resultaten van de uiteindelijke reistijdberekening.15 2. Seismische reistijdberekeningswerkwijze gebaseerd op de virtuele tweedimensionale golffrontconstructiebron volgens conclusie 1, met het kenmerk, dat de bij de stap 5, wanneer de seismische reistijd van de rasterpunten die zijn opgenomen in de vierhoek van het golffront wordt berekend door middel van een virtuele bronmethode, vier hoekpunten van een20 vierhoek van het golffront als respectievelijk A, B, C en D worden verondersteld, en R een rasterpunt in de vierhoek van het golffront is; en nadat de locaties van de virtuele bronnen Oa, Ob, Oc en Od die overeenkomen met A,B, C en D worden berekend door middel van relevante informatie, de uitdrukking van seismische reistijd op punt R is:(|OaR| + |ObR|+|OcR| + |OdR|) rR= 4*Vr ’ waarin |OAR|, |ObR|, |OcR| en |OdR| respectievelijk de afstand van OA, Ob, Oc en Od tot punt R weergeven, en VR de seismische snelheid in punt R weergeeft.read in parameters and a velocity model i£SI divide a calculation space into a ί I plurality of quadrilaterals IJ calculate the travd time of grid points) I I in the ctiadrilaterals I comolete calculation for all the quadrilaterals .YESOutput results^..
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641651.7A CN108957538A (zh) | 2018-06-21 | 2018-06-21 | 一种虚拟震源二维波前构建地震波走时计算方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL2021354A true NL2021354A (en) | 2018-08-14 |
| NL2021354B1 NL2021354B1 (en) | 2019-04-26 |
Family
ID=63141839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2021354A NL2021354B1 (en) | 2018-06-21 | 2018-07-19 | 2-D Seismic Travel Time Calculation Method Based on Virtual Source Wavefront Construction |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN108957538A (nl) |
| BE (1) | BE1025828B1 (nl) |
| LU (1) | LU100878B1 (nl) |
| NL (1) | NL2021354B1 (nl) |
| WO (1) | WO2019242045A1 (nl) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957538A (zh) * | 2018-06-21 | 2018-12-07 | 成都启泰智联信息科技有限公司 | 一种虚拟震源二维波前构建地震波走时计算方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660135A (zh) * | 2019-09-20 | 2020-01-07 | 西南石油大学 | 一种利用三角网格化射线实现波前构建的方法 |
| CN110568496B (zh) * | 2019-09-26 | 2021-02-09 | 核工业北京地质研究院 | 一种复杂介质条件下射线追踪方法 |
| CN111257939B (zh) * | 2020-03-26 | 2021-06-01 | 中国石油大学(北京) | 一种时移地震虚拟震源双向波场重构方法和系统 |
| CN114924312B (zh) * | 2022-05-10 | 2024-03-12 | 吉林大学 | 一种基于波前初始化射线追踪技术的高斯波束偏移方法及装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035256A (en) * | 1997-08-22 | 2000-03-07 | Western Atlas International, Inc. | Method for extrapolating traveltimes across shadow zones |
| EP1423735B1 (en) * | 2001-09-07 | 2010-08-18 | Shell Internationale Research Maatschappij B.V. | Seismic imaging a subsurface formation by means of virtual sources |
| US20170363759A1 (en) * | 2016-06-17 | 2017-12-21 | Cgg Services Sa | System and method for seismic interferometry optimized data acquisition |
| CN105974470B (zh) * | 2016-07-04 | 2017-06-16 | 中国石油大学(华东) | 一种多分量地震资料最小二乘逆时偏移成像方法及系统 |
| CN108072897A (zh) * | 2018-01-23 | 2018-05-25 | 西南交通大学 | 一种混合二维地震波走时计算方法 |
| CN108957538A (zh) * | 2018-06-21 | 2018-12-07 | 成都启泰智联信息科技有限公司 | 一种虚拟震源二维波前构建地震波走时计算方法 |
-
2018
- 2018-06-21 CN CN201810641651.7A patent/CN108957538A/zh active Pending
- 2018-07-04 LU LU100878A patent/LU100878B1/fr active IP Right Grant
- 2018-07-04 WO PCT/CN2018/094459 patent/WO2019242045A1/zh active Application Filing
- 2018-07-19 NL NL2021354A patent/NL2021354B1/en not_active IP Right Cessation
- 2018-07-19 BE BE2018/5525A patent/BE1025828B1/fr not_active IP Right Cessation
Non-Patent Citations (4)
| Title |
|---|
| FUXING HAN ET AL: "Positioning of grid points in wave front construction", APPLIED GEOPHYSICS, vol. 6, no. 3, 1 September 2009 (2009-09-01), Heidelberg, pages 248 - 258, XP055535404, ISSN: 1672-7975, DOI: 10.1007/s11770-009-0024-z * |
| K. CHAMBERS ET AL: "A practical implementation of wave front construction for 3-D isotropic media", GEOPHYSICAL JOURNAL INTERNATIONAL., vol. 173, no. 3, 1 June 2008 (2008-06-01), GB, pages 1030 - 1038, XP055535417, ISSN: 0956-540X, DOI: 10.1111/j.1365-246X.2008.03790.x * |
| V. VINJE ET AL: "Estimation of multivalued arrivals in 3D models using wavefront construction-Part I1", GEOPHYSICAL PROSPECTING, vol. 44, no. 5, 1 September 1996 (1996-09-01), pages 819 - 842, XP055085423, ISSN: 0016-8025, DOI: 10.1111/j.1365-2478.1996.tb00175.x * |
| VETLE VINJE ET AL: "Traveltime and amplitude estimation using wavefront construction", GEOPHYSICS, 1 August 1993 (1993-08-01), pages 1157 - 1166, XP055535413, Retrieved from the Internet <URL:https://library.seg.org/doi/pdf/10.1190/1.1443499> [retrieved on 20181217], DOI: 10.1190/1.1443499 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957538A (zh) * | 2018-06-21 | 2018-12-07 | 成都启泰智联信息科技有限公司 | 一种虚拟震源二维波前构建地震波走时计算方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108957538A (zh) | 2018-12-07 |
| WO2019242045A1 (zh) | 2019-12-26 |
| BE1025828B1 (fr) | 2019-07-25 |
| WO2019242045A9 (zh) | 2021-02-18 |
| NL2021354B1 (en) | 2019-04-26 |
| BE1025828A1 (fr) | 2019-07-18 |
| LU100878B1 (fr) | 2019-12-30 |
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| MM | Lapsed because of non-payment of the annual fee |
Effective date: 20210801 |