Download or read book Optimization of an automatic microseismic event location software ad application to a hydraulic fracturing dataset from a hydrocarbon reservoir written by Aurélien Mordret and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Estimation of Uncertainty in Microseismic Event Location Associated with Hydraulic Fracturing written by Andres Felipe Castano and published by . This book was released on 2010 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effectiveness of Microseismic Monitoring for Optimizing Hydraulic Fracturing in California written by Ann M. Alampi and published by . This book was released on 2014 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic fracturing has fundamentally changed the oil and gas industry in the past 10 years. Bakersfield, California provides a unique case study because steam injection, a type of hydraulic fracturing, has been used there for more than 60 years. Seven companies, varying in size and strategy, use steam injection in California. Some of these companies use microseismic monitoring technologies to maximize production from hydrocarbon reservoirs. In this study, the effectiveness of microseismic monitoring to maximize production in California is explored. This is accomplished by comparing trends in oil and gas production volumes with each company's use of microseismic monitoring. This project found that operators that use microseismic most extensively have not achieved a competitive advantage over other operators. This means that substantial investments in monitoring research, installation and data interpretation have not paid off and may not be worthwhile. This result should help companies improve their current projects and shape future investment decisions.
Download or read book Microseismic Imaging of Hydraulic Fracturing written by and published by . This book was released on 2014 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microseismic Imaging of Hydraulic Fracturing written by Shawn Mawell and published by . This book was released on 2014 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Seismic Event Location by Waveform Coherence Analysis written by Francesco Grigoli and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automated location of seismic events is a very important task in microseismic monitoring operations as well for local and regional seismic monitoring. Since microseismic records are generally characterised by low signal-to-noise ratio, such methods are requested to be noise robust and sufficiently accurate. Most of the standard automated location routines are based on the automated picking, identification and association of the first arrivals of P and S waves and on the minimization of the residuals between theoretical and observed arrival times of the considered seismic phases. Although current methods can accurately pick P onsets, the automatic picking of the S onset is still problematic, especially when the P coda overlaps the S wave onset. In this thesis I developed a picking free automated method based on the Short-Term-Average/Long-Term-Average (STA/LTA) traces at different stations as observed data. I used the STA/LTA of several characteristic functions in order to increase the sensitiveness to the P wave and the S waves. For the P phases we use the STA/LTA traces of the vertical energy function, while for the S phases, we use the STA/LTA traces of the horizontal energy trace and then a more optimized characteristic function which is obtained using the principal component analysis technique. The orientation of the horizontal components can be retrieved by robust and linear approach of waveform comparison between stations within a network using seismic sources outside the network (chapter 2). To locate the seismic event, we scan the space of possible hypocentral locations and origin times, and stack the STA/LTA traces along the theoretical arrival time surface for both P and S phases. Iterating this procedure on a three-dimensional grid we retrieve a multidimensional matrix whose absolute maximum corresponds to the spatial and temporal coordinates of the seismic event. Location uncertainties are then estimated by perturbing the STA/LTA parameters (i.e the length of both long and short time windows) and relocating each event several times. In order to test the location method I firstly applied it to a set of 200 synthetic events. Then we applied it to two different real datasets. A first one related to mining induced microseismicity in a coal mine in the northern Germany (chapter 3). In this case we successfully located 391 microseismic event with magnitude range between 0.5 and 2.0 Ml. To further validate the location method I compared the retrieved locations with those obtained by manual picking procedure. The second dataset consist in a pilot application performed in the Campania-Lucania region (southern Italy) using a 33 stations seismic network (Irpinia Seismic Network) with an aperture of about 150 km (chapter 4). We located 196 crustal earthquakes (depth
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.
Download or read book Identification and Analysis of Long duration Low frequency Events from Microseismic Data written by Hongru Hu and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic fracturing is commonly used to enhance rock permeability in unconventional reservoirs. Locating microseismic events has become a standard tool in monitoring the fracturing process. However, the relation between microseismicity and crack networks has not been well understood. In addition, microseismic energy is almost negligible compared with the total energy used in fracturing. Long-duration and low-frequency (LDLF) seismic events, which are often observed in volcanic fields, have been reported from the data recorded during hydraulic fracturing. Although the origin of low-frequency events could be complicated, fluid pressurization through cracks, which is a common source for volcanic tremors, could be one main mechanism for LDLF events during hydraulic fracturing. Therefore, investigating the LDLF events from microseismic data would help to understand different types of ground deformation and help to characterize the formation of fracture network. In this research, I have identified several LDLF events using frequency-time plots from a microseismic dataset acquired by surface receivers in the Eagle Ford Shale in Mexico. Seismograms are filtered and their envelopes are calculated. Arrivals from each energy pack are picked from the envelopes using a cross-correlation method. These arrivals are then used to locate the event through a grid-search approach. The LDLF events can be categorized in two types. Type 1 events are located at around 1500 m in depth, close to the horizontal well. The associated phase arrivals show typical P-wave moveout trends. In addition, these events tend to migrate away from the treatment well with time. Type 1 events are probably caused by fluid pressurization in fractures. Type 2 events are located near the surface and the waves travel at a Rayleigh wave speed. The source mechanism of type 2 events is not clear, but could be related to vibrations of the operation equipment.
Download or read book A Study Of Microseismic Location Uncertainty written by Sirui Ma and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Microseismic is an effective method of monitoring hydraulic fracture propagation in unconventional shale oil and gas field development. In this study, microseismic events are located by grid search method while location uncertainty is quantified in probability contours at the same time. We test the impact of different algorithm inputs on the location uncertainty. Variables include the choice(s) of velocity model, downhole array(s) geometry, seismic phase(s) (P-wave, SH-wave) and particle motion. We picked one perforation event recorded during the hydraulic fracturing of the Utica Shale in Ohio. By altering variables, we find out that S-wave arrival is better in constrain the uncertainty of location; whip array is better than single array; back-azimuth is not effective in downhole vertical array.
Download or read book Induced Seismicity Potential in Energy Technologies written by National Research Council and published by National Academies Press. This book was released on 2013-08-14 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past several years, some energy technologies that inject or extract fluid from the Earth, such as oil and gas development and geothermal energy development, have been found or suspected to cause seismic events, drawing heightened public attention. Although only a very small fraction of injection and extraction activities among the hundreds of thousands of energy development sites in the United States have induced seismicity at levels noticeable to the public, understanding the potential for inducing felt seismic events and for limiting their occurrence and impacts is desirable for state and federal agencies, industry, and the public at large. To better understand, limit, and respond to induced seismic events, work is needed to build robust prediction models, to assess potential hazards, and to help relevant agencies coordinate to address them. Induced Seismicity Potential in Energy Technologies identifies gaps in knowledge and research needed to advance the understanding of induced seismicity; identify gaps in induced seismic hazard assessment methodologies and the research to close those gaps; and assess options for steps toward best practices with regard to energy development and induced seismicity potential.
Download or read book Advances in Seismic Event Location written by Cliffort H. Thurber and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Seismic Event Location provides a broad overview of the fundamental issues involved in seismic event location, and presents a variety of state-of-the-art location methods and applications at a wide range of spatial scales. Three important themes in the book are: seismic monitoring for a Comprehensive Nuclear-Test-Ban Treaty (CTBT), seismic event location in three-dimensional Earth models, and methods for multiple-event location. Each chapter contains background material to help readers less familiar with the topics covered, as well as to provide abundant references for readers interested in probing deeper into a topic. However, most of the emphasis is on recent advances in methodology and their application. Audience: The book is intended primarily for academic and professional researchers and graduate students in seismology.
Download or read book Data Analytics in Reservoir Engineering written by Sathish Sankaran and published by . This book was released on 2020-10-29 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Analytics in Reservoir Engineering describes the relevance of data analytics for the oil and gas industry, with particular emphasis on reservoir engineering.
Download or read book Deep Learning Algorithms and Applications written by Witold Pedrycz and published by Springer. This book was released on 2019-11-04 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a wealth of deep-learning algorithms and demonstrates their design process. It also highlights the need for a prudent alignment with the essential characteristics of the nature of learning encountered in the practical problems being tackled. Intended for readers interested in acquiring practical knowledge of analysis, design, and deployment of deep learning solutions to real-world problems, it covers a wide range of the paradigm’s algorithms and their applications in diverse areas including imaging, seismic tomography, smart grids, surveillance and security, and health care, among others. Featuring systematic and comprehensive discussions on the development processes, their evaluation, and relevance, the book offers insights into fundamental design strategies for algorithms of deep learning.
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.
Download or read book Seismic Petrophysics in Quantitative Interpretation written by Lev Vernik and published by SEG Books. This book was released on 2016-10-15 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploration and characterization of conventional and unconventional reservoirs using seismic technologies are among the main activities of upstream technology groups and business units of oil and gas operators. However, these activities frequently encounter difficulties in quantitative seismic interpretation due to remaining confusion and new challenges in the fast developing field of seismic petrophysics. Seismic Petrophysics in Quantitative Interpretation shows how seismic interpretation can be made simple and robust by integration of the rock physics principles with seismic and petrophysical attributes bearing on the properties of both conventional (thickness, net/gross, lithology, porosity, permeability, and saturation) and unconventional (thickness, lithology, organic richness, thermal maturity) reservoirs. Practical solutions to existing interpretation problems in rock physics-based amplitude versus offset (AVO) analysis and inversion are addressed in the book to streamline the workflows in subsurface characterization. Although the book is aimed at oil and gas industry professionals and academics concerned with utilization of seismic data in petroleum exploration and production, it could also prove helpful for geotechnical and completion engineers and drillers seeking to better understand how seismic and sonic data can be more thoroughly utilized.
Download or read book Proceedings of the International Petroleum and Petrochemical Technology Conference 2019 written by Jia'en Lin and published by Springer Nature. This book was released on 2019-12-16 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of selected papers from the 3rd International Petroleum and Petrochemical Technology Conference (IPPTC 2019). The work focuses on petroleum & petrochemical technologies and practical challenges in the field. It creates a platform to bridge the knowledge gap between China and the world. The conference not only provides a platform to exchanges experience but also promotes the development of scientific research in petroleum & petrochemical technologies. The book will benefit a broad readership, including industry experts, researchers, educators, senior engineers and managers.
