Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201801030
F. Chen, D. Peter
{"title":"Constructing Misfit Function for Full Waveform Inversion Based on Sliced Wasserstein Distance","authors":"F. Chen, D. Peter","doi":"10.3997/2214-4609.201801030","DOIUrl":"https://doi.org/10.3997/2214-4609.201801030","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122151852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201801079
R. Agarwal, R. Chatterjee
{"title":"Application of Multi-Attribute Analysis and Impedance Inversion Studies to Delineate Sands and Lithology Variations","authors":"R. Agarwal, R. Chatterjee","doi":"10.3997/2214-4609.201801079","DOIUrl":"https://doi.org/10.3997/2214-4609.201801079","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117271797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201801433
R. Whittaker, B. Ady
{"title":"Deformable Plate Reconstructions: Modelling the Relationship between Hyperextension, Basin Evolution and Flexural Uplift","authors":"R. Whittaker, B. Ady","doi":"10.3997/2214-4609.201801433","DOIUrl":"https://doi.org/10.3997/2214-4609.201801433","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129547061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201800641
S. Grion, R. Light, S. Denny
Summary This paper discusses a field test of seismic apparition, a simultaneous source technique for marine airgun sources that uses modulation to facilitate source separation. The first part of the paper focuses on the design of the modulation codes. The second part introduces a field test where a single line of 3D data was acquired using three two-string sources. This field test provides real data for testing current and future implementations of the seismic apparition method. In this paper we present initial separation results obtained after minimal pre-processing of the recorded data. Conclusions are drawn on the challenges and opportunities of towed-streamer seismic apparition for multi-source surveys.
{"title":"A Seismic Apparition Experiment on Towed Streamer Seismic Data","authors":"S. Grion, R. Light, S. Denny","doi":"10.3997/2214-4609.201800641","DOIUrl":"https://doi.org/10.3997/2214-4609.201800641","url":null,"abstract":"Summary This paper discusses a field test of seismic apparition, a simultaneous source technique for marine airgun sources that uses modulation to facilitate source separation. The first part of the paper focuses on the design of the modulation codes. The second part introduces a field test where a single line of 3D data was acquired using three two-string sources. This field test provides real data for testing current and future implementations of the seismic apparition method. In this paper we present initial separation results obtained after minimal pre-processing of the recorded data. Conclusions are drawn on the challenges and opportunities of towed-streamer seismic apparition for multi-source surveys.","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129853741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201800690
R. Mittet
{"title":"Seismic Inversion for a Smooth Velocity Model Using a Wave to Diffusion Transform","authors":"R. Mittet","doi":"10.3997/2214-4609.201800690","DOIUrl":"https://doi.org/10.3997/2214-4609.201800690","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128510105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201801648
G. Erokhin, A. Danilin, M. Kozlov
{"title":"Visualization of Ultra-Weak Diffractors based on Vector Pair RTM","authors":"G. Erokhin, A. Danilin, M. Kozlov","doi":"10.3997/2214-4609.201801648","DOIUrl":"https://doi.org/10.3997/2214-4609.201801648","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128260904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201801632
J. Liu, Y. Fan, X. Ge, F. Wu
{"title":"Permeability Estimation of Tight Sandstone based on Dual T2 Cutoff Value Model and Fluid Substitution","authors":"J. Liu, Y. Fan, X. Ge, F. Wu","doi":"10.3997/2214-4609.201801632","DOIUrl":"https://doi.org/10.3997/2214-4609.201801632","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"264-275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128275724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201800795
R. Bachmann, Q. Dang, R. Lambert, J. Pipping
Wintershall took on the challenge and developed a low permeable Upper Jurassic oil reservoir in the Greater Ravn Area offshore Denmark. A new depositional model was created based on core studies and the results of two hydraulically stimulated horizontal production wells. The reservoir consists of very fine to coarser grained storm-influenced lower shoreface sediments. Intervals of conglomerates within the background shoreface deposits appear to be mainly matrix supported, but occasionally also clast supported. The reservoir quality is controlled by the matrix grain size, which has a major impact on permeability, but to a lesser extent on porosity. Increasing matrix grain size enhances the permeability. Conglomerates are therefore not indicative for the reservoir quality. Predicting and modelling the occurrence and distribution of the coarser grained matrix with the better reservoir quality as sheet-like deposits is essential. An updated static model has been created and used for dynamic simulation, history matching and production forecasts. The production wells proved producibility with initial flow rates better than predicted. Long term production behavior is essential to decide on the overall potential for further development of the Greater Ravn Area.
{"title":"Modelling Challenges of a Low Permeability Clastic Reservoir – A Case Study from the Ravn Oil Field Offshore Denmark","authors":"R. Bachmann, Q. Dang, R. Lambert, J. Pipping","doi":"10.3997/2214-4609.201800795","DOIUrl":"https://doi.org/10.3997/2214-4609.201800795","url":null,"abstract":"Wintershall took on the challenge and developed a low permeable Upper Jurassic oil reservoir in the Greater Ravn Area offshore Denmark. A new depositional model was created based on core studies and the results of two hydraulically stimulated horizontal production wells. The reservoir consists of very fine to coarser grained storm-influenced lower shoreface sediments. Intervals of conglomerates within the background shoreface deposits appear to be mainly matrix supported, but occasionally also clast supported. The reservoir quality is controlled by the matrix grain size, which has a major impact on permeability, but to a lesser extent on porosity. Increasing matrix grain size enhances the permeability. Conglomerates are therefore not indicative for the reservoir quality. Predicting and modelling the occurrence and distribution of the coarser grained matrix with the better reservoir quality as sheet-like deposits is essential. An updated static model has been created and used for dynamic simulation, history matching and production forecasts. The production wells proved producibility with initial flow rates better than predicted. Long term production behavior is essential to decide on the overall potential for further development of the Greater Ravn Area.","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128571135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201801387
S. Operto, A. Ribodetti, J. Virieux, S. Sambolian
{"title":"Anisotropic First-arrival Slope and Traveltime Tomography (FASTT)","authors":"S. Operto, A. Ribodetti, J. Virieux, S. Sambolian","doi":"10.3997/2214-4609.201801387","DOIUrl":"https://doi.org/10.3997/2214-4609.201801387","url":null,"abstract":"","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124571274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-11DOI: 10.3997/2214-4609.201800697
C. Leone, D. Boiero, S. Mitchell
Summary A new approach is proposed to estimate the S-wave velocity of the near surface (and its changes over time) from passive data. The method consists of 5D interpolation followed by surface-wave analysis and inversion. This allowed us to overcome the issue of velocity estimation in between detector cables avoiding the phase velocity tomography step. The method was tested on virtual shots generated by interferometry techniques applied on ambient noise recorded at the Valhall Life of Field Seismic permanent monitoring network. Maps of the phase velocities allowed identifying several geological features in the near surface. A time-lapse analysis was also performed and the changes in S-wave velocity shows correlation to the 4D time shifts from converted-wave data.
{"title":"Surface-Wave Analysis and Inversion of Ambient Noise Recordings","authors":"C. Leone, D. Boiero, S. Mitchell","doi":"10.3997/2214-4609.201800697","DOIUrl":"https://doi.org/10.3997/2214-4609.201800697","url":null,"abstract":"Summary A new approach is proposed to estimate the S-wave velocity of the near surface (and its changes over time) from passive data. The method consists of 5D interpolation followed by surface-wave analysis and inversion. This allowed us to overcome the issue of velocity estimation in between detector cables avoiding the phase velocity tomography step. The method was tested on virtual shots generated by interferometry techniques applied on ambient noise recorded at the Valhall Life of Field Seismic permanent monitoring network. Maps of the phase velocities allowed identifying several geological features in the near surface. A time-lapse analysis was also performed and the changes in S-wave velocity shows correlation to the 4D time shifts from converted-wave data.","PeriodicalId":325587,"journal":{"name":"80th EAGE Conference and Exhibition 2018","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124678398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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