81st EAGE Conference and Exhibition 2019最新文献_第4页

Multiscale Modelling and Integrated Interpretation of Potential Field and Seismic Data Onshore Mexico 墨西哥陆上势场和地震数据的多尺度建模与综合解释

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900967

G. Bancalà, L. Luca, S. Ratti, E. Mattos

引用次数: 1

Fault Characterization Using Advanced Seismic Interpretation Techniques–Quantitative Input for Optimal Well Placement in Structurally Complex Reservoirs 基于先进地震解释技术的断层表征——构造复杂油藏最佳井位的定量输入

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900742

M. Etchebes, A. Bounaim, T. Brenna, D. Steckhan

引用次数: 1

Extraction of the Seismic Wavelet Based on Deep Neural Networks 基于深度神经网络的地震小波提取

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901378

D. Lu, J. Gao, D. Chen, H. Chen, Q. Wang

{"title":"Extraction of the Seismic Wavelet Based on Deep Neural Networks","authors":"D. Lu, J. Gao, D. Chen, H. Chen, Q. Wang","doi":"10.3997/2214-4609.201901378","DOIUrl":"https://doi.org/10.3997/2214-4609.201901378","url":null,"abstract":"In reflection seismology, seismic wavelet estimation is of great significance for high resolution reflectivity inversion. The method for wavelet estimation can be classified into two categories. One is deterministic and the other is statistic. For the latter, a conventional method uses a spectrum fitting method to estimate the seismic wavelet. The commonly used methods are correlation-based method, the log-spectrum-averaging method and spectrum-shaping method. All of these methods assume that the reflection coefficient sequence (RCS) is white and the source wavelets are zero-phase which may not be valid under certain conditions. In this paper, we propose a new approach to obtain the seismic wavelet based on deep neural network (DNN). We compare the wavelet obtained by our method with the wavelet obtained by widely used spectrum modeling method. Then, the obtained wavelet is applied to perform the inversion of the RCS using the HPP algorithm. Compared with the conventional method, DNN can achieve a more accurate wavelet even if source wavelet is not zero-phase. The resolution of reflectivity inversion is significantly enhanced by using the obtained wavelet.","PeriodicalId":6840,"journal":{"name":"81st EAGE Conference and Exhibition 2019","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85951703","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}

引用次数: 3

An Integrated Approach for Characterizing Source Rocks in Frontier Hydrocarbon Basins by Organic Geochemical Analyses and Stratigraphic Forward Modeling: the Case of the Eastern Mediterranean Region 基于有机地球化学分析和地层正演模拟的前沿盆地烃源岩综合表征方法——以东地中海地区为例

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900901

S. Grohmann, F. Nader, M. Romero-Sarmiento, F. Baudin, R. Littke

{"title":"An Integrated Approach for Characterizing Source Rocks in Frontier Hydrocarbon Basins by Organic Geochemical Analyses and Stratigraphic Forward Modeling: the Case of the Eastern Mediterranean Region","authors":"S. Grohmann, F. Nader, M. Romero-Sarmiento, F. Baudin, R. Littke","doi":"10.3997/2214-4609.201900901","DOIUrl":"https://doi.org/10.3997/2214-4609.201900901","url":null,"abstract":"Summary In order to better understand petroleum systems in the eastern Mediterranean Sea, an integrated approach is presented to characterize potential source rocks by means of organic geochemistry and stratigraphic forward modeling. Upper Cretaceous and Upper Eocene organic matter-rich deposits were found in the OPD Leg 160 boreholes along the Eratosthenes Seamount, south of Cyprus and within the Upper Miocene strata onshore Cyprus. The geochemical results indicate a mainly marine type of organic matter that was deposited as a result of upwelling systems above the seamount. Onshore, nutrients were derived together with clastic material, leading to increased bio-productivity. These results together with literature data for Cretaceous source rocks along the Levant Margin were the base for a large scale stratigraphic forward model, which was used to simulate the distribution of different sediments including organic matter within the respective intervals. The simulations could reproduce organic matter-rich deposits along the Levant margin as well as on top of the Eratosthenes Seamount. The simulated intervals are in accordance with published facies maps and show relatively small thickness errors compared to depth-converted seismic horizons. These models can provide valuable process-based facies input parameters for petroleum system modelling.","PeriodicalId":6840,"journal":{"name":"81st EAGE Conference and Exhibition 2019","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76840032","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}

引用次数: 0

Managing Non-Technical Risk in Upstream Oil and Gas Industry in Indonesia 印尼上游油气行业的非技术风险管理

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901462

W. Jaluakbar, I. S. Putra

{"title":"Managing Non-Technical Risk in Upstream Oil and Gas Industry in Indonesia","authors":"W. Jaluakbar, I. S. Putra","doi":"10.3997/2214-4609.201901462","DOIUrl":"https://doi.org/10.3997/2214-4609.201901462","url":null,"abstract":"Summary In the last decade, volatility of oil prices has increased rapidly. Dealing with high default risk conditions, increased volatility and a downward trend in oil prices since 2015, oil and gas companies are advised to hold on to the mantra of capital discipline (cost reduction, standardization, collaboration) and refocus investment and efforts on asset maintenance. On the other hand, the oil and gas industry in Indonesia is one of the source of state revenues and as a provider of basic energy needs for economic growth. The decrease in upstream oil and gas investment is a bad signal for the country's budget and energy in the future. Declining production levels (marginal fields and no significant new discoveries) are the main causes of this problem. Oil imports as a solution to the deficit is a poor signal both national energy security and exchange rate stability. For this reason, the Indonesian government needs giant discoveries as one of the solutions for the above problems. With all above reason, the Government of Indonesia need to take a corrective and make improvisation actions in order to provide incentives and improve existing investment climate to support massive exploration activities.","PeriodicalId":6840,"journal":{"name":"81st EAGE Conference and Exhibition 2019","volume":"321 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76896522","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}

引用次数: 0

Imaging Enhancement of Reverse Time Migration Using Dynamic Time Warping and Local Similarity 利用动态时间翘曲和局部相似度增强逆时偏移成像

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900667

C. Wu, H. Wang, J. Hu, F. Luo, S. Sheng

引用次数: 0

A Novel Array Acquisition and Processing Methodology for Microseismic Monitoring 一种新的微震监测阵列采集与处理方法

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900672

B. Witten, A. Booterbaugh, R. Segstro

引用次数: 3

The Value of Seismics in Mineral Exploration and Mine Safety 地震在矿产勘查和矿山安全中的价值

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901667

M. Manzi, A. Malehmir, R. Durrheim

引用次数: 3

Optimized and Cost-Efficient Visco-Acoustic Iterative Least-Squares Migration 优化的低成本粘声迭代最小二乘迁移

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900664

Ø. Korsmo, A. Osen, A. Pankov, O. Sandstad

引用次数: 0

Finite-Difference Contrast Source Inversion Method for Elastic Wave Equation 弹性波动方程的有限差分对比源反演方法

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900883

S. Wang, Haiyang Li, D. Wang, S. Zhou

{"title":"Finite-Difference Contrast Source Inversion Method for Elastic Wave Equation","authors":"S. Wang, Haiyang Li, D. Wang, S. Zhou","doi":"10.3997/2214-4609.201900883","DOIUrl":"https://doi.org/10.3997/2214-4609.201900883","url":null,"abstract":"Summary This abstract extends the finite-difference contrast source inversion (FD-CSI) method to reconstruct the P-wave and S-wave velocity for two-dimensional elastic wave inversion in the framework of the full-waveform inversion. The FD-CSI method is an iterative nonlinear inversion method, which exhibits several strengths. First, the finite-difference operator only relies on the background media and the given frequency, both of which are unchanged during inversion. Therefore, the full forward problem is required to be solved only once at the beginning of the inversion process, which makes the method very computationally efficient and ideal for large-scale 3D inversion calculations. Another attractive feature of the inversion method is that it is with strong capability in dealing with nonlinear inverse problems in an inhomogeneous background medium, because a 25 points finite-difference operator is used to represent the differential operator governing the two-dimensional elastic wave propagation. Numerical reconstruction results show that the inversion method has an excellent performance for reconstructing P-wave and S-wave and can provide more accurate velocity information for seismic data processing and interpretation.","PeriodicalId":6840,"journal":{"name":"81st EAGE Conference and Exhibition 2019","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83601143","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}

引用次数: 0