Download or read book Microseismic Monitoring Developments in Hydraulic Fracture Stimulation written by Mirko van der Vinn and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The last decade has seen a significantly increased interest in microseismic monitoring by the hydrocarbon industry due to the recent surge in unconventional resources such as shale-gas and heavy-oil plays. Both hydraulic fracturing and steam injection create changes in local pore pressures and in situ stresses and thereby brittle failure in intact rock plus additional slip/shearing in naturally fractured rock. Local rock failure or slip yields an acoustic emission, which is also known as a microseismic event. The microseismic cloud represents thus a volumetric map of the extent of induced fracture shearing, opening and closing. Microseismic monitoring can provide pertinent information on in situ reservoir deformation due to fluid stimulation, thus ultimately facilitating reservoir drainage. This paper reviews some of the current key questions and research in microseismicity, ranging from acquisition, processing to interpretation.
Download or read book Microseismic Imaging of Hydraulic Fracturing written by Shawn Mawell and published by SEG Books. This book was released on 2014-01-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microseismic Imaging of Hydraulic Fracturing: Improved Engineering of Unconventional Shale Reservoirs (SEG Distinguished Instructor Series No. 17) covers the use of microseismic data to enhance engineering design of hydraulic fracturing and well completion. The book, which accompanies the 2014 SEG Distinguished Instructor Short Course, describes the design, acquisition, processing, and interpretation of an effective microseismic project. The text includes a tutorial of the basics of hydraulic fracturing, including the geologic and geomechanical factors that control fracture growth. In addition to practical issues associated with collecting and interpreting microseismic data, potential pitfalls and quality-control steps are discussed. Actual case studies are used to demonstrate engineering benefits and improved production through the use of microseismic monitoring. Providing a practical user guide for survey design, quality control, interpretation, and application of microseismic hydraulic fracture monitoring, this book will be of interest to geoscientists and engineers involved in development of unconventional reservoirs.
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 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.
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 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 Microseismic Imaging of Hydraulic Fracturing written by Shawn Maxwell and published by . This book was released on 2014 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work aims to provide a practical user guide for survey design, quality control, interpretation, and application of microseismic hydraulic fracture monitoring. The book is intended to provide a comprehensive educational resource for microseismic hydraulic fracture imaging, with a focus on practical tips for executing a successful microseismic project. Limitations of the data and potential pitfalls are emphasised throughout.
Download or read book Hydraulic Fracture Monitoring written by Ana Karen Ortega Perez and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well-monitoring before, during, and after hydraulic fracturing treatment is essential to accomplish a successful fracture completion program. By knowing the geometry, orientation, and propagation of the hydraulic fractures, we can identify potential completion issues during fracturing operations and help in the design of more efficient unconventional reservoir completions. Distributed Acoustic Sensing (DAS) is an emerging technology in hydraulic fracture monitoring that enables continuous, real-time measurements along the entire length of a fiber optic cable. The low-frequency band of DAS records strain perturbations of the medium, due to fracture propagation, which provides critical constraints on hydraulic fracture geometry. In this study, the low-frequency DAS strain fronts was analyzed, with their corresponding pumping curves, for one hydraulic fracturing treatment to obtain information on the hydraulic fractures like fracture azimuth, propagation speed, number of fractures created during each stage and re-stimulation of pre-existent fractures. Then, the microseismicity of the treatment was analyzed to obtain information on hydraulic fractures like length, height, trajectory and cloud growth over time. The microseismicity was also projected onto the strain fronts to study the development of the events with respect to the fracture signal and to find correlations between the strain changes and the microseismic events. Finally, the PKN model was computed using parameters from the stimulation treatment and the DAS strain fronts to forecast anticipated fracture lengths against observations. The PKN modeling results were compared to the microseismic and DAS results to find stages where the hydraulic fractures did not grow or propagate as expected. The low-frequency DAS is able to obtain information on hydraulic fractures that would need extra processing or might not be picked up using other records as microseismicity. However, the spatial constraint of the measurements in DAS needs to be taken into consideration. This spatial constraint can be addressed by the integration of other records. In general, there is good agreement between the LF DAS data, the pumping information, the microseismic data and the PKN model. But when they do not agree on a stage, that gives us an indication that something unexpected happened during injection. Models describing the expected behavior of the different records analyzed in this research were created to explain some possible scenarios of fracture propagation. Most stages in this treatment fall within one of these models.
Download or read book Study of Microseismic Events written by Yunhui Tan and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Microseismic is commonly used to monitor the hydraulic fracturing process. Seismic signals are recorded using either surface or downhole geophones to invert for hypocenters of rock movements (moment magnitude usually between -3 and 0) happened during hydraulic fracturing. The location of these microseismic events are used to estimate the stimulated reservoir volume. This thesis focuses on further understanding of microseismic events beyond the cloud of locations. To test whether the lineament of microseismic event cloud represent fluid filled open fractures, we looked at the change of S wave from perforations when it passes microseismic event cloud (Chapter 2). Strong attenuation of S wave suggests that the microseismic event cloud indicates fluid-filled open fractures.We also studied the evolution of medium velocity structure during hydraulic fracturing. By inverting the arrival time of perforation shots recorded by downhole geophones, we found that the velocity of stimulated region is higher than the unstimulated region (Chapter 3).A new model (Rutledge-Eisner model) is introduced to describe the mechanism of microseismic event generation. This model states that the microseismic events are a results of shearing on bedding planes caused by opening of hydraulic fractures. Moment tensor inversion results from surface microseismic monitoring of the Marcellus shale is presented to validate this model (Chapter 4).Based on this model, we explained some phenomena in the temporal and spatial distribution of microseismic events under different geological and geomechanical conditions (Chapter 5). We found that microseismic events concentrate behind the fracture tip in a single planar fracture propagation. Low in-situ stress environment leads to early microseismic events while high in-situ stress lead to late microseismic events during fracturing. Natural fracture networks show unique microseismic temporal patterns with the increased sand concentration. Higher in-situ stress variation between layers lead to more microseismic events and larger magnitude.In summary, microseismic monitoring is an effective method to reveal details about hydraulic fracturing.
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 Development of Microseismic Methods to Determine Hydraulic Fracture Dimensions written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research was conducted on the determination of hydraulically stimulated fracture diagnostics using microseismic monitoring in the treatment well and in remote wells. Treatment Well Results: A technique has been developed to estimate the depth of the top and bottom of a fracture. This method has been demonstrated with four surveys at GRI wells SFE No. 1 and SFE No. 2. The successful height determination after four months' production of SFE No. 2 demonstrates the application to previously fractured wells. Results from HYDCRAK models confirm the height technique. Tube waves were identified as a more prevalent and significant noise source than previously envisioned. Methods of identifying and dealing with tube-wave noise in acquisition and analysis were developed. Two algorithms were used to remove known tube waves: 1) a prediction error filter to remove downgoing energy, 2) a noise-conditioned filter. Both methods have significantly improved the S/N to allow detection of smaller microseismic signals. Remote Well Results: A re-evaluation of expected signal-to-noise ratios S/N has been made for remote well surveys. Multiple signals detected during three remote well surveys are interpreted as being from the reservoir in the immediate vicinity of the monitor wells rather than from the treatment being monitored at ranges of 1900 to 4500 ft.
Download or read book Unconventional Petroleum Geology written by Caineng Zou and published by Elsevier. This book was released on 2017-03-10 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconventional Petroleum Geology, Second Edition presents the latest research results of global conventional and unconventional petroleum exploration and production. The first part covers the basics of unconventional petroleum geology, its introduction, concept of unconventional petroleum geology, unconventional oil and gas reservoirs, and the origin and distribution of unconventional oil and gas. The second part is focused on unconventional petroleum development technologies, including a series of technologies on resource assessment, lab analysis, geophysical interpretation, and drilling and completion. The third and final section features case studies of unconventional hydrocarbon resources, including tight oil and gas, shale oil and gas, coal bed methane, heavy oil, gas hydrates, and oil and gas in volcanic and metamorphic rocks. - Provides an up-to-date, systematic, and comprehensive overview of all unconventional hydrocarbons - Reorganizes and updates more than half of the first edition content, including four new chapters - Includes a glossary on unconventional petroleum types, including tight-sandstone oil and gas, coal-bed gas, shale gas, oil and gas in fissure-cave-type carbonate rocks, in volcanic reservoirs, and in metamorphic rocks, heavy crude oil and natural bitumen, and gas hydrates - Presents new theories, new methods, new technologies, and new management methods, helping to meet the demands of technology development and production requirements in unconventional plays
Download or read book Passive Seismic Monitoring of Induced Seismicity written by David W. Eaton and published by Cambridge University Press. This book was released on 2018-04-26 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the principles and applications of passive seismic monitoring, providing an accessible overview of current research and technology.
Download or read book Microseismicity in the Ekofisk Field written by Glenn Arthur Jones and published by . This book was released on 2010 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combined Micro macro Seismic Monitoring of a Hydraulic Fracture Stimulation Rulison Field Colorado written by Robert Brent Riley and published by . This book was released on 2007 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluid Induced Seismicity written by Serge A. Shapiro and published by Cambridge University Press. This book was released on 2015-04-23 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characterisation of fluid transport properties of rocks is one of the most important, yet difficult, challenges of reservoir geophysics, but is essential for optimal development of hydrocarbon and geothermal reservoirs. This book provides a quantitative introduction to the underlying physics, application, interpretation, and hazard aspects of fluid-induced seismicity with a particular focus on its spatio-temporal dynamics. It presents many real data examples of microseismic monitoring of hydraulic fracturing at hydrocarbon fields and of stimulations of enhanced geothermal systems. The author also covers introductory aspects of linear elasticity and poroelasticity theory, as well as elements of seismic rock physics and mechanics of earthquakes, enabling readers to develop a comprehensive understanding of the field. Fluid-Induced Seismicity is a valuable reference for researchers and graduate students working in the fields of geophysics, geology, geomechanics and petrophysics, and a practical guide for petroleum geoscientists and engineers working in the energy industry.
Download or read book Understanding Hydraulic Fracture Growth Effectiveness and Safety Through Microseismic Monitoring written by Norman Warpinski and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding Hydraulic Fracture Growth, Effectiveness, and Safety Through Microseismic Monitoring.
