81st EAGE Conference and Exhibition 2019最新文献_第5页

Joint Least-Squares RTM of Surface Seismic and Seismic-While-Drilling Datasets 地面地震和随钻地震数据集的联合最小二乘RTM

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900697

N. Kazemi, D. Trad, K. Innanen, R. Shor

{"title":"Joint Least-Squares RTM of Surface Seismic and Seismic-While-Drilling Datasets","authors":"N. Kazemi, D. Trad, K. Innanen, R. Shor","doi":"10.3997/2214-4609.201900697","DOIUrl":"https://doi.org/10.3997/2214-4609.201900697","url":null,"abstract":"Least-squares migration can, in theory, reduce the acquisition footprint and improve the illumination of the subsurface structures. However, in complex subsurface structures, rays or the wave energy will penetrate poorly in some regions, e.g., subsalt region, and that region will be a shadow zone to a typical surface seismic acquisition. The shadow zone is in the null space of the migration operator and the subsurface information in that region will not be recovered even by posing imaging as an inverse problem. To rectify this, we use another set of data, along with surface seismic dataset, whose ray paths are different from the surface seismic. Seismic-while-drilling (SWD) dataset are complementary to surface data, and it brings an opportunity to address seismic illumination issue by adding new measurements into the imaging problem. Accordingly, in this research, we formulate the joint least-squares reverse time migration of surface seismic and SWD datasets and explore its potential in imaging the parts of the model that is in the shadow zone of the surface seismic acquisition. Presented results on the BP-Model94 show that the joint least-squares migration outperforms the single surface and single SWD least-squares migrations in improving the illumination of subsurface structures.","PeriodicalId":6840,"journal":{"name":"81st EAGE Conference and Exhibition 2019","volume":"137 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76283583","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: 1

Principles for a Hierarchical Earth Model Representation Aiming Towards Fit-For-Purpose Grid Resolution 面向适合目的网格分辨率的分层地球模型表示原则

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900709

E. Suter, T. Kårstad, A. Escalona, H. A. Friis, E. H. Vefring

引用次数: 0

Deghosting Method of Variable-Depth Streamer Seismic Data Based on the Iterative Inversion of Wave Equation 基于波动方程迭代反演的变深度流波地震数据去重影方法

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901017

Y. Wang, J. Wang, X. Wang, W. Sun, J. Zhang

引用次数: 0

Traditional Feature Based vs Direct Machine Learning Based AVO Classification 基于传统特征与基于直接机器学习的AVO分类

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901148

V. Das, T. Mukerji

引用次数: 3

Salt Structure Velocity Model Building Based on Signed Multi-Scale Direct Envelope Inversion 基于签名多尺度直接包络反演的盐结构速度模型建立

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900872

G. Chen, R. Wu, S. Chen

引用次数: 1

Coupling a Cloud-Based Reservoir Simulator and Near Wellbore Modelling Software for Inorganic Scale Risk Management 结合基于云的油藏模拟器和近井建模软件进行无机结垢风险管理

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901093

Oleg Ishkov, O. Vazquez, E. Mackay

引用次数: 0

Unravelling New Exploration Frontiers for the Lower Jurassic of Kuwait 揭开科威特下侏罗统新勘探领域

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901551

M. Al-Awadhi, N. Hawie, M. Hafez, R. Rajagopal, S. Yelamanchi, M. Al-Abdullah, H. D. Almeida

{"title":"Unravelling New Exploration Frontiers for the Lower Jurassic of Kuwait","authors":"M. Al-Awadhi, N. Hawie, M. Hafez, R. Rajagopal, S. Yelamanchi, M. Al-Abdullah, H. D. Almeida","doi":"10.3997/2214-4609.201901551","DOIUrl":"https://doi.org/10.3997/2214-4609.201901551","url":null,"abstract":"The main objectives of this work are to provide a new assessment of structural and stratigraphic trapping mechanisms of the Lower Jurassic Marrat Formation onshore Kuwait through integrated G&G workflows supported by seismic characterization. A unique 3D seismic survey was recently acquired in the western Kuwaiti sector known as “Khabrat Ali”. This acquisition is aimed at opening new exploration frontiers in a sector with very limited data. Results of this study provide significant insights into the potential development of the reservoir facies in the Lower Jurassic Marrat carbonate ramp system. Those results highlight an important change in the perception related to west Kuwait which was once thought to be deposited in a lagoonal system with little explorational potential. For the first time three main lead areas presenting good reservoir characteristics have been identified. Two comprising stratigraphic trapping potential, localized in the westernmost (extensive shoal geobody) and eastern “Khabrat Ali” (restricted shoals or associated reworked deposits). Finally, combined structural-stratigraphic traps are also observed along two major structures localized in the central part of “Khabrat Ali”. Those results provide major constraints for future stratigraphic and basin models expected to be conducted soon.","PeriodicalId":6840,"journal":{"name":"81st EAGE Conference and Exhibition 2019","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77880107","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: 2

Investigating Injection Induced Fault Activation Through Geomechanical Stability Analysis 通过地质力学稳定性分析研究注入诱发断层活化

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201901120

T. Kettlety, J. Verdon, M. Werner, J. Kendall

引用次数: 1

New Aspects of Rock Typing 岩石打字的新方面

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900713

R. Moghadasi, M. Motie

引用次数: 0

Integrating Seismic Inversion in Static Uncertainties 静态不确定性下的地震反演积分

81st EAGE Conference and Exhibition 2019 Pub Date : 2019-06-03 DOI: 10.3997/2214-4609.201900712

F. Piriac, P. Biver, S. Halfaoui

引用次数: 1