Multidimensional Seismic Noise Attenuation

Multidimensional Seismic Noise Attenuation PDF Author: Antoine Guitton
Publisher:
ISBN:
Category : Seismic prospecting
Languages : en
Pages : 197

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Book Description

Multidimensional Seismic Noise Attenuation

Multidimensional Seismic Noise Attenuation PDF Author: Antoine Guitton
Publisher:
ISBN:
Category : Seismic prospecting
Languages : en
Pages : 197

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Book Description


Seismic Noise Attenuation

Seismic Noise Attenuation PDF Author: E. R. Kanasewich
Publisher: Pergamon
ISBN:
Category : Science
Languages : en
Pages : 252

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Book Description
This volume attempts to examine the sequence of operations required for the extraction of the flow of messages from a background of random noise and unwanted signals. The analysis will involve the use of frontier integrals, autocorrelation, cross correlation, power spectral studies and convolution or filtering. Attention will be made to the definition of signal and noise and how these may change under different processing methods.

Attenuation of Incoherent Seismic Noise

Attenuation of Incoherent Seismic Noise PDF Author: Abdullatif Al-Shuhail
Publisher: Springer Nature
ISBN: 3030329488
Category : Technology & Engineering
Languages : en
Pages : 190

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Book Description
This book examines the effects of incoherent noise and how it leads to the misinterpretation of seismic data. It also reviews common noise reduction approaches and their drawbacks, focusing on developments that have occurred in the past decade. The main features of this book include: • Hands-on implementation in MATLAB and/or C • In-depth discussions of both theoretical and practical aspects of the subject • Supplementary, real-world seismic data • Detailed descriptions of structure-enhancing filters. Connecting the theory and practical implementation of noise reduction, the book helps readers fill the gap from equations to code, and from classical filters to the preservation and enhancement of a robust structure. Lastly, it highlights cutting-edge research in the area. As such, it is of interest to researchers in the fields of petroleum engineering, exploration seismology, and geophysics, as well as to practitioners working in the petroleum industry.

Attenuation of Incoherent Seismic Noise

Attenuation of Incoherent Seismic Noise PDF Author: Abdullatif Abdulrahman Al-Shuhail
Publisher:
ISBN: 9783030329495
Category : Microseisms
Languages : en
Pages : 190

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Book Description
This book examines the effects of incoherent noise and how it leads to the misinterpretation of seismic data. It also reviews common noise reduction approaches and their drawbacks, focusing on developments that have occurred in the past decade. The main features of this book include: Hands-on implementation in MATLAB and/or C In-depth discussions of both theoretical and practical aspects of the subject Supplementary, real-world seismic data Detailed descriptions of structure-enhancing filters. Connecting the theory and practical implementation of noise reduction, the book helps readers fill the gap from equations to code, and from classical filters to the preservation and enhancement of a robust structure. Lastly, it highlights cutting-edge research in the area. As such, it is of interest to researchers in the fields of petroleum engineering, exploration seismology, and geophysics, as well as to practitioners working in the petroleum industry.

Mathematics of Multidimensional Seismic Imaging, Migration, and Inversion

Mathematics of Multidimensional Seismic Imaging, Migration, and Inversion PDF Author: N. Bleistein
Publisher: Springer Science & Business Media
ISBN: 1461300010
Category : Mathematics
Languages : en
Pages : 537

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Book Description
For more than 80 years, the oil and gas industry has used seismic methods to construct images and determine physical characteristics of rocks that can yield information about oil and gas bearing structures in the earth. This book presents the different seismic data processing methods, also known as seismic "migration," in a unified mathematical way. The book serves as a bridge between the applied math and geophysics communities by presenting geophysicists with a practical introduction to advanced engineering mathematics, while presenting mathematicians with a window into the world of the mathematically sophisticated geophysicist.

Advances and applications of artificial intelligence in geoscience and remote sensing

Advances and applications of artificial intelligence in geoscience and remote sensing PDF Author: Peng Zhenming
Publisher: Frontiers Media SA
ISBN: 2832531571
Category : Science
Languages : en
Pages : 191

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Book Description


Multidimensional Seismic Data Reconstruction Using Tensor Analysis

Multidimensional Seismic Data Reconstruction Using Tensor Analysis PDF Author: Nadia Kreimer
Publisher:
ISBN:
Category : Calculus of tensors
Languages : en
Pages : 161

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Book Description
Exploration seismology utilizes the seismic wavefield for prospecting oil and gas. The seismic reflection experiment consists on deploying sources and receivers in the surface of an area of interest. When the sources are activated, the receivers measure the wavefield that is reflected from different subsurface interfaces and store the information as time-series called traces or seismograms. The seismic data depend on two source coordinates, two receiver coordinates and time (a 5D volume). Obstacles in the field, logistical and economical factors constrain seismic data acquisition. Therefore, the wavefield sampling is incomplete in the four spatial dimensions. Seismic data undergoes different processes. In particular, the reconstruction process is responsible for correcting sampling irregularities of the seismic wavefield. This thesis focuses on the development of new methodologies for the reconstruction of multidimensional seismic data. This thesis examines techniques based on tensor algebra and proposes three methods that exploit the tensor nature of the seismic data. The fully sampled volume is low-rank in the frequency-space domain. The rank increases when we have missing traces and/or noise. The methods proposed perform rank reduction on frequency slices of the 4D spatial volume. The first method employs the Higher-Order Singular Value Decomposition (HOSVD) immersed in an iterative algorithm that reinserts weighted observations. The second method uses a sequential truncated SVD on the unfoldings of the tensor slices (SEQ-SVD). The third method formulates the rank reduction problem as a convex optimization problem. The measure of the rank is replaced by the nuclear norm of the tensor and the alternating direction method of multipliers (ADMM) minimizes the cost function. All three methods have the interesting property that they are robust to curvature of the reflections, unlike many reconstruction methods. Finally, we present a comparison between the methods proposed in this thesis and other two reconstruction methods. This thesis demonstrates the suitability of tensor completion techniques for solving the simultaneous denoising and reconstruction problem.

Geological Disasters in Deep Engineering Mechanism, Warning and Risk mitigation

Geological Disasters in Deep Engineering Mechanism, Warning and Risk mitigation PDF Author: Guang-Liang Feng
Publisher: Frontiers Media SA
ISBN: 2832525075
Category : Science
Languages : en
Pages : 498

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Book Description
With the increasing demand for infrastructure construction as the global economy progresses, the need for exploration and utilization of deep underground space becomes more crucial. Various deep underground projects are planned, are under construction, and have been built to encounter great construction challenges due to the complex geo-environment such as strong tectonic movement, fragile geo-environment and complex thermo-hydro-mechanical-chemical conditions. These deep engineering projects could be endangered by different kinds of geological disasters, such as intense rockburst, large deformation, strong water inrush, and large-scale collapse, which might result in massive loss of life and economic damage during the construction of deep underground projects. It is necessary to take proactive measures to ensure that the development of deep engineering projects is risk-informed and sustainable. Efforts are being called for strengthening science and technology innovation and cooperation in geological disaster mitigation and sustainable development during the construction of deep engineering projects. It is paramount to use new technologies and international cooperation to jointly tackle the geological disasters risks and achieve sustainable development. To mitigate the risk of geological disaster in deep engineering under the complicate geo-environment, the mechanism of the formation and evolution of geological disasters in deep engineering needs to be understood. The testing, monitoring, simulation, risk assessment and early warning methods for geological disaster in deep engineering are also needed urgently. New theories, methods and techniques related to the mechanism, warning and risk mitigation of geological disasters in deep engineering will be extremely helpful for the construction safety of deep engineering.

Advances in Noise Reduction and Feature Extraction of Acoustic Signal

Advances in Noise Reduction and Feature Extraction of Acoustic Signal PDF Author: Govind Vashishtha
Publisher: Frontiers Media SA
ISBN: 283253578X
Category : Science
Languages : en
Pages : 134

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Book Description
Acoustic signal is one of the hot topics of research in physics and has been studied by many engineers and scientists in various real-world fields, including underwater acoustics, architectural acoustics, engineering acoustics, physical acoustics, environmental acoustics, psychological acoustics, and so on. Noise reduction is the foundation of acoustic signal pre-processing, and the feature extraction for noise reduction signals can obtain useful information from the acoustic signal, which is the linchpin for pattern recognition, target detection, tracking, and localization.

A Data-estimation-based Approach for Quasi-continuous Seismic Reservoir Monitoring

A Data-estimation-based Approach for Quasi-continuous Seismic Reservoir Monitoring PDF Author: Adeyemi Temitope Arogunmati
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 218

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Book Description
Current strategies and logistics for seismic data acquisition impose restrictions on the calendar-time temporal resolution obtainable for a given time-lapse monitoring program. One factor that restricts the implementation of a quasi-continuous monitoring program using conventional strategies is the time it takes to acquire a complete survey. Here quasi-continuous monitoring describes the process of reservoir monitoring at short time intervals. This dissertation describes an approach that circumvents the restriction by requiring only a subset of a complete survey data each time an image of the reservoir is needed. Ideally, the time interval between survey subset acquisitions should be short so that changes in the reservoir properties are small. The accumulated data acquired are used to estimate the unavailable data at the monitor survey time, and the combined known and estimated data are used to produce an image of the subsurface for monitoring. Quasi-continuous seismic monitoring can be used to monitor geologic reservoirs during the injection phase of a carbon dioxide sequestration project. It can also be used to monitor reservoir changes between injector and producer wells during the secondary recovery phase in an oil field. The primary advantage of a quasi-continuous monitoring strategy over the conventional strategy is the high temporal resolution of the reservoir changes obtainable. Naturally, the spatial resolution of the image obtained using a subset of the data from a full survey will be worse than the spatial resolution of the image obtained using the complete data from a full survey. However, if the unavailable data are estimated perfectly, the spatial resolution is not lost. The choice of estimation algorithm and the size of the known data play an important role in the success of the approach presented in this dissertation.