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Integration Of Surface Seismic Microseismic And Production Logs For Shale Gas Characterization
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Book Synopsis Integration of Surface Seismic, Microseismic, and Production Logs for Shale Gas Characterization by : John Henry Alzate Buitrago
Download or read book Integration of Surface Seismic, Microseismic, and Production Logs for Shale Gas Characterization written by John Henry Alzate Buitrago and published by . This book was released on 2012 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unconventional Reservoir Geomechanics by : Mark D. Zoback
Download or read book Unconventional Reservoir Geomechanics written by Mark D. Zoback and published by Cambridge University Press. This book was released on 2019-05-16 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of the US shale gas revolution in 2005, the development of unconventional oil and gas resources has gathered tremendous pace around the world. This book provides a comprehensive overview of the key geologic, geophysical, and engineering principles that govern the development of unconventional reservoirs. The book begins with a detailed characterization of unconventional reservoir rocks: their composition and microstructure, mechanical properties, and the processes controlling fault slip and fluid flow. A discussion of geomechanical principles follows, including the state of stress, pore pressure, and the importance of fractures and faults. After reviewing the fundamentals of horizontal drilling, multi-stage hydraulic fracturing, and stimulation of slip on pre-existing faults, the key factors impacting hydrocarbon production are explored. The final chapters cover environmental impacts and how to mitigate hazards associated with induced seismicity. This text provides an essential overview for students, researchers, and industry professionals interested in unconventional reservoirs.
Book Synopsis Seismic Attributes as the Framework for Data Integration Throughout the Oilfield Life Cycle by : Kurt J. Marfurt
Download or read book Seismic Attributes as the Framework for Data Integration Throughout the Oilfield Life Cycle written by Kurt J. Marfurt and published by SEG Books. This book was released on 2018-01-31 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Useful attributes capture and quantify key components of the seismic amplitude and texture for subsequent integration with well log, microseismic, and production data through either interactive visualization or machine learning. Although both approaches can accelerate and facilitate the interpretation process, they can by no means replace the interpreter. Interpreter “grayware” includes the incorporation and validation of depositional, diagenetic, and tectonic deformation models, the integration of rock physics systematics, and the recognition of unanticipated opportunities and hazards. This book is written to accompany and complement the 2018 SEG Distinguished Instructor Short Course that provides a rapid overview of how 3D seismic attributes provide a framework for data integration over the life of the oil and gas field. Key concepts are illustrated by example, showing modern workflows based on interactive interpretation and display as well as those aided by machine learning.
Book Synopsis Stratigraphic Reservoir Characterization for Petroleum Geologists, Geophysicists, and Engineers by : Roger M. Slatt
Download or read book Stratigraphic Reservoir Characterization for Petroleum Geologists, Geophysicists, and Engineers written by Roger M. Slatt and published by Elsevier Inc. Chapters. This book was released on 2013-11-21 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many tools and techniques for characterizing oil and gas reservoirs. Seismic-reflection techniques include conventional 2D and 3D seismic, 4D time-lapse seismic, multicomponent seismic, crosswell seismic, seismic inversion, and seismic attribute analysis, all designed to enhance stratigraphy/structure detection, resolution, and characterization. These techniques are constantly being improved. Drilling and coring a well provides the “ground truth” for seismic interpretation. Rock formations are directly sampled by cuttings and by core and indirectly characterized with a variety of conventional and specialized well logs. To maximize characterization and optimize production, many of these tools as possible should be employed. It is often less expensive to utilize a wide variety of tools that directly image or measure reservoir properties at different scales than to drill one or two dry holes.
Book Synopsis Fundamentals of Gas Shale Reservoirs by : Reza Rezaee
Download or read book Fundamentals of Gas Shale Reservoirs written by Reza Rezaee and published by John Wiley & Sons. This book was released on 2015-07-01 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive information about the key exploration, development and optimization concepts required for gas shale reservoirs Includes statistics about gas shale resources and countries that have shale gas potential Addresses the challenges that oil and gas industries may confront for gas shale reservoir exploration and development Introduces petrophysical analysis, rock physics, geomechanics and passive seismic methods for gas shale plays Details shale gas environmental issues and challenges, economic consideration for gas shale reservoirs Includes case studies of major producing gas shale formations
Book Synopsis Microseismic Monitoring by : Vladimir Grechka
Download or read book Microseismic Monitoring written by Vladimir Grechka and published by SEG Books. This book was released on 2017-09-01 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, microseismic monitoring, a technology developed for evaluating completions of wells drilled to produce hydrocarbons from unconventional reservoirs, has grown increasingly popular among oil and gas companies. Microseismic Monitoring, by Vladimir Grechka and Werner M. Heigl, discusses how to process microseismic data, what can and cannot be inferred from such data, and to what level of certainty this might be possible. The narrative of the book follows the passage of seismic waves: from a source triggered by hydraulic fracture stimulation, through hydrocarbon-bearing formations, towards motion sensors. The waves’ characteristics encode the location of their source and its focal mechanism. The analysis of various approaches to harvesting the source-related information from microseismic records has singled out the accuracy of the velocity model, fully accounting for the strong elastic anisotropy of hydraulically fractured shales, as the most critical ingredient for obtaining precise source locations and interpretable moment tensors. The ray theory complemented by its modern extensions, paraxial and Fréchet ray tracing, provides the only practical means available today for building such models. The book is written for geophysicists interested in learning and applying advanced microseismic data-processing techniques.
Book Synopsis The challenge and opportunity of CCUS in the development of unconventional resource by : Yibo Li
Download or read book The challenge and opportunity of CCUS in the development of unconventional resource written by Yibo Li and published by Frontiers Media SA. This book was released on 2023-04-26 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulically-induced Microseismic Fracture Characterization from Surface Seismic Attributes and Seismic Inversion by : Xavier E. Refunjol Chirinos
Download or read book Hydraulically-induced Microseismic Fracture Characterization from Surface Seismic Attributes and Seismic Inversion written by Xavier E. Refunjol Chirinos and published by . This book was released on 2010 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Understanding Downhole Microseismic Data Analysis by : Jubran Akram
Download or read book Understanding Downhole Microseismic Data Analysis written by Jubran Akram and published by Springer Nature. This book was released on 2020-01-01 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed as an excellent resource text for students and professionals, providing an in-depth overview of the theory and applications of downhole microseismic monitoring of hydraulic fracturing. The readers will benefit greatly from the detailed explanation on the processes and workflows involved in the acquisition design modeling, processing and interpretation of microseismic data.
Book Synopsis Unconventional Oil and Gas Resources by : Usman Ahmed
Download or read book Unconventional Oil and Gas Resources written by Usman Ahmed and published by CRC Press. This book was released on 2016-04-05 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the shale revolution continues in North America, unconventional resource markets are emerging on every continent. In the next eight to ten years, more than 100,000 wells and one- to two-million hydraulic fracturing stages could be executed, resulting in close to one trillion dollars in industry spending. This growth has prompted professionals ex
Book Synopsis Long Period Long Duration Seismic Events During Hydraulic Stimulation of Gas Reservoirs by : Indrajit Das
Download or read book Long Period Long Duration Seismic Events During Hydraulic Stimulation of Gas Reservoirs written by Indrajit Das and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis attempts to identify and characterize the range of deformation processes that occurs during hydraulic stimulation of extremely low-permeability shale-gas reservoirs. The aim is to improve the mechanical understanding on how multi-stage hydraulic fracturing leads to reservoir stimulation. While monitoring the microseismicity that accompanies hydraulic fracturing provides information about the depth, extent and growth patterns of the induced fracture network, several lines of evidence indicate that microearthquakes are only part of the total deformation. The central topic of this dissertation is to describe a previously unknown class of Long Period Long Duration (LPLD) seismic events, much larger in magnitude than microearthquakes. Interpreted to represent sustained slow slip on relatively large faults, LPLD events can help explain the development of hydraulically conductive surface area and the overall increase in reservoir permeability associated with hydraulic fracturing. More importantly, the LPLD events are indicative of potentially widespread slow aseismic processes that enhanced the effectiveness of the hydraulic fracturing process. The first chapter introduces the problem of understanding hydraulic fracturing in shale gas reservoirs in the light of recorded seismic signals during the monitoring process. It also talks about the motivation for this research. The second chapter discusses the advantages of applying passive seismic tomography to a typical microseismic data set recorded in a single, nearly vertical well to monitor hydraulic stimulation of a shale-gas reservoir. In this method, the event locations and the velocity model are estimated simultaneously unlike the conventional industry practice of using a fixed velocity model derived from sonic logs and perforation-shots. Essentially the velocity model and the event locations are constantly updated till the desired fit is achieved. In this way we are making use of the information carried by the microearthquakes themselves for improving the model and consequently, the locations. This added flexibility not only makes it possible to accurately predict traveltimes of the recorded P- and S-waves, but also provides a convincing evidence for anisotropy of the examined shale formation. While we find that velocity heterogeneity does not need to be introduced to explain the data acquired for each stage of hydraulic fracturing, the obtained models are suggestive of possible time-lapse changes in the anisotropy parameters that characterize the stimulated reservoir volume. The third and fourth chapters discuss the principal topic of the thesis, which is identifying, characterizing and locating LPLD seismic events that have been observed during hydraulic fracturing in several shale-gas and tight-gas reservoirs. The LPLD events are low amplitude signals lasting for 10-100 seconds and are most conspicuous in the 10-80 Hz frequency band and are identified by their high amplitudes in stacked spectrograms in this particular frequency band. Band-pass filtering of the raw seismic data in this band is used to eventually isolate all the LPLD events. Third chapter of this thesis describes the waveform characteristic of the LPLD events and the fourth chapter discusses the location and mechanism of these events. LPLD events are similar in appearance to tectonic tremor sequences observed in subduction zones and transform fault boundaries. LPLD events, which are complex but coherent wave trains, have finite moveouts, the direction and amount of which confirms that they originate in the reservoir. They are predominantly composed of S-waves but weaker P-waves have also been identified. In some cases, microearthquakes are observed to occur during the LPLD events. Based on the similarity with tectonic tremor and our observations of several impulsive S-wave arrivals within the LPLD events, LPLD events have been interpreted as resulting from the superposition of shear slip events on relatively large faults. Using a method akin to empirical Green's function, the energy carried by the larger LPLD events is estimated to be about ~1000 times greater than a microseismic event of moment magnitude (MW) ~ -2, that is typical of the events that occur during hydraulic stimulation. In the course of the entire stimulation activity, LPLD events were found to release cumulatively, as much as two orders of magnitude higher energy than the microearthquakes. The large size of these LPLD events compared to microearthquakes suggests that they represent slip on relatively large faults during stimulation of these extremely low-permeability reservoirs. The fourth chapter describes how within the limitations of the recording geometry, it is possible to determine the general area in the reservoir from which the events originate for the two case studies in the Barnett shale. In the first study, LPLD events occur in the region where the density of natural fractures as well as the fluid pressure during pumping was highest. In the second case study, the LPLD events are observed to occur between two wells and seem to establish a hydraulic connection between these wells. In both data sets, the LPLD events occur in areas with very few microearthquakes. There are likely many faults in the reservoir not producing microseismicity that are slowly slipping in response to the stimulation; LPLD events are, however, expected to be generated where faults large enough to produce a sequence of slow slip events exist. A combination of factors such as high fluid pressure and/or high clay content is potentially responsible for slow slip on faults. This thesis identifies a number of topics for future studies (hopefully better data sets having improved recording geometries and sensors) to better study the relation of LPLD events to microearthquakes. LPLD events can provide useful insights into the primary deformation mechanism responsible for production post hydraulic stimulation. Knowing that these newly discovered events evidently caused by pervasive slow slip on relatively large faults are significantly impacting the stimulation of these extremely low-permeability reservoirs, it might be possible to better design reservoir stimulation by mapping the distribution of faults and fractures and areas with rock properties that favor slow slip.
Book Synopsis Uncertainty Analysis and Reservoir Modeling by : Y. Zee Ma
Download or read book Uncertainty Analysis and Reservoir Modeling written by Y. Zee Ma and published by AAPG. This book was released on 2011-12-20 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unconventional Reservoir Geomechanics by : Mark D. Zoback
Download or read book Unconventional Reservoir Geomechanics written by Mark D. Zoback and published by Cambridge University Press. This book was released on 2019-05-16 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the key geologic, geomechanical and engineering principles that govern the development of unconventional oil and gas reservoirs. Covering hydrocarbon-bearing formations, horizontal drilling, reservoir seismology and environmental impacts, this is an invaluable resource for geologists, geophysicists and reservoir engineers.
Book Synopsis Development of Unconventional Reservoirs by : Reza Rezaee
Download or read book Development of Unconventional Reservoirs written by Reza Rezaee and published by MDPI. This book was released on 2020-04-16 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for energy is increasing and but the production from conventional reservoirs is declining quickly. This requires an economically and technically feasible source of energy for the coming years. Among some alternative future energy solutions, the most reasonable source is from unconventional reservoirs. As the name “unconventional” implies, different and challenging approaches are required to characterize and develop these resources. This Special Issue covers some of the technical challenges for developing unconventional energy sources from shale gas/oil, tight gas sand, and coalbed methane.
Book Synopsis Geophysics and Geosequestration by : Thomas L. Davis
Download or read book Geophysics and Geosequestration written by Thomas L. Davis and published by Cambridge University Press. This book was released on 2019-05-09 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the geophysical techniques and analysis methods for monitoring subsurface carbon dioxide storage for researchers and industry practitioners.
Book Synopsis Seismic Characterization of the Eagle Ford Shale Based on Rock Physics by : Ricardo Zavala-Torres
Download or read book Seismic Characterization of the Eagle Ford Shale Based on Rock Physics written by Ricardo Zavala-Torres and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The findings of this dissertation on seismic characterization of the Eagle Ford Shale based on rock physics using actual well-log data from productive and unproductive wells in Mexico can be immediately and effectively applied to avoid future failures and can be corroborated with current and new locations for exploration and production. It was found that basic sequence stratigraphy techniques developed for unconventional reservoirs can be applied to the case of the Eagle Ford Shale in Mexico. Using well log correlation and petrophysical techniques to estimate reservoir properties, it was concluded that the zone where the horizontal well was drilled at Montanes-1 was located above the condensed sequence, bypassing the pay zone below the maximum flooding surface in the transgressive system track. It is verified that the productive well Emergente-1 was drilled in the correct zone with hydrocarbon saturation at the transgressive system track below the maximum flooding surface. It was found that using mineral assessment methods to compute brittleness, and the proper geosteering analysis is a consistent approach for placement of future horizontals. Based on that, it is concluded that any estimation of rock physics and anisotropic parameters derived from well logs at the source rock interval will be deceiving and will give a false estimation. It was concluded that the isotropic rock physic model known as friable-sand or modified friable-shale (unconsolidated sand or unconsolidated shale), or most recently called “soft-sand model”, was proved to match the data better than any other rock physic model tested to predict velocity and density. The term “non-source rock model” will be used instead for the rock physic model because it is more consistent with the Eagle Ford Shale case analyzed here. For the orientation of maximum horizontal stress, it is concluded by integrating VSP, microseismic and borehole data, that a straight north-south orientation of future horizontals is needed in order to generate the fractures in the straight east-west azimuth correlating with the maximum horizontal stress orientation.
Download or read book Rockburst written by Xia-Ting Feng and published by Butterworth-Heinemann. This book was released on 2017-10-19 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rockburst: Mechanisms, Monitoring, Warning and Mitigation invites the most relevant researchers and practitioners worldwide to discuss the rock mechanics phenomenon related to increased stress and energy levels in intact rock introduced by drilling, explosion, blasting and other activities. When critical energy levels are reached, rockbursts can occur causing human and material losses in mining and tunneling environments. This book is the most comprehensive information source in English to cover rockbursts. Comprised of four main parts, the book covers in detail the theoretical concepts related to rockbursts, and introduces the current computational modeling techniques and laboratory tests available. The second part is devoted to case studies in mining (coal and metal) and tunneling environments worldwide. The third part covers the most recent advances in measurement and monitoring. Special focus is given to the interpretation of signals and reliability of systems. The following part addresses warning and risk mitigation through the proposition of a single risk assessment index and a comprehensive warning index to portray the stress status of the rock and a successful case study. The final part of the book discusses mitigation including best practices for distressing and efficiently supporting rock. Designed to provide the most comprehensive coverage, the book will provide practicing mining and tunneling engineers the theoretical background needed to better cope with the phenomenon, practical advice from case studies and practical mitigation actions and techniques. Academics in rock mechanics will appreciate this complete reference to rockburst, which features how to analyze stress signals and use computational modeling more efficiently. Offers understanding of the fundamental theoretical concepts of rockbursts Explores how to analyze signals from current monitoring systems Shows how to apply mitigating techniques in current work Identifies characteristics that should be measured in order to detect rockburst risk