Download or read book Non destructive Evaluation of Laboratory Scale Hydraulic Fracturing Using Acoustic Emission written by Jesse Clay Hampton and published by . This book was released on 2015 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Monitoring of Laboratory Scale Hydraulic Fracturing written by Timothy Witham and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic fracturing is a proven method to enhance the recovery of hydrocarbons from tight reservoirs and source-rock plays (Mighani et al., 2018). Larger, more complex fractures have greater surface area, which is thought to help maximize recovery. However, measuring the degree of complexity and interconnectedness of fractures is still a challenging problem, even with microseismic data. Here, we use laboratory-scale hydraulic fracturing experiments in conjunction with active and passive ultrasonic monitoring to evaluate how stress wave responses can be used to better constrain fracture development. An array of piezoelectric sensors transmits compressional stress waves through isotropic acrylic samples during hydrofracture. This allows for imaging of the fractures behavior over time. Fracking fluids are delivered to the sample at a constant stress rate in all cases. Initial results show that detection of changes in fracture aperture is possible by analyzing the relative attenuation differences in active compressional wave amplitudes throughout an entire experiment. The wave attenuation increases along the ray paths passing through fracture planes while the attenuation through intact regions remains unchanged. Experiments sought to determine whether there is an observable difference in attenuation values and fracture response. Variable compositions of fracturing fluid could influence the complexity of the resultant fracture surface. Acoustic emissions were recorded passively during the fracturing process for some experiments. These laboratory methods could be upscaled using borehole seismic testing.
Download or read book Acoustic Emission Testing written by Christian U. Grosse and published by Springer Science & Business Media. This book was released on 2008-07-12 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acoustic Emission (AE) techniques have been studied in civil engineering for a long time. The techniques are recently going to be more and more applied to practical applications and to be standardized in the codes. This is because the increase of aging structures and disastrous damages due to recent earthquakes urgently demand for maintenance and retrofit of civil structures in service for example. It results in the need for the development of advanced and effective inspection techniques. Thus, AE techniques draw a great attention to diagnostic applications and in material testing. The book covers all levels from the description of AE basics for AE beginners (level of a student) to sophisticated AE algorithms and applications to real large-scale structures as well as the observation of the cracking process in laboratory specimen to study fracture processes.
Download or read book Acoustic Emission Monitoring of Laboratory Hydraulic Fracturing Experiments written by Michael Molenda and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Emissions in Hydraulic Fracturing of Barre Granite written by Qiuyi Bing Li and published by . This book was released on 2015 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this work is to observe acoustic emissions (AE) generated by laboratory scale hydraulic fracturing of Barre granite specimens with single or double flaw geometry. The scope of this work covers the experimental setup and subsequent analyses of these acoustic emissions, which in essence are elastic waves generated by displacements occurring within the rock specimen. Acoustic emissions can be analysed in a number of ways, whether individually or grouped together into events when a number of emissions arrive together. Individual emissions can be analysed for their amplitude, energy, or their frequency content while the source location and source mechanism can be inferred from events. The AE data are analysed in conjunction with water pressure, high resolution images, and high speed video taken during the experiment. Section 3 of this work outlines the selection and subsequent modification of the AE acquisition system with a specific focus on capturing AE at the end of each experiment in order to compare results to high speed video. This section describes the initial equipment selection, as well as initial experiments where it was noted that crucial data were missing around the time of the fracture event. This issue was largely resolved by modifying the system parameters as well as upgrading the PC supporting the AE acquisition cards. Section 4 of this work describes analysis of one experiment, providing an in-depth start-to-finish account of the nature of acoustic emissions at different phases of the experiment. This section also considers all of the hydraulic fracture experiments performed at different vertical loads and specimen flaw geometries, and draws some tentative conclusions regarding hydraulic fracturing in granite.
Download or read book Laboratory Hydraulic Fracture Characterization Using Acoustic Emission written by Jesse Clay Hampton and published by . This book was released on 2012 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydraulic Fracturing and Rock Mechanics written by Yu Zhao and published by Springer Nature. This book was released on 2023-06-21 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book is the first to consider the effect of non-uniform fluid pressure in hydraulic fractures. The book covers the key topics in the process of hydraulic fracture nucleation, growth, interaction and fracture network formation. Laboratory experiments and theoretical modeling are combined to elucidate the formation mechanism of complex fracture networks. This book is suitable for master’s/Ph.D. students, scientists and engineers majoring in rock mechanics and petroleum engineering who need to use a more reliable model to predict fracture behavior.
Download or read book Structural Health Monitoring Damage Detection Systems for Aerospace written by Markus G. R. Sause and published by Springer Nature. This book was released on 2021 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.
Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1988 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Emission written by Zinoviy Nazarchuk and published by Springer. This book was released on 2017-01-23 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph analyses in detail the physical aspects of the elastic waves radiation during deformation or fracture of materials. It presents the methodological bases for the practical use of acoustic emission device, and describes the results of theoretical and experimental researches of evaluation of the crack growth resistance of materials, selection of the useful AE signals. The efficiency of this methodology is shown through the diagnostics of various-purpose industrial objects. The authors obtain results of experimental researches with the help of the new methods and facilities.
Download or read book Monitoring Acoustic Emission from Propagating Fractures in Petroleum Reservoir Rocks written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The results presented here are from a continuing petroleum reservoir stimulation research program at the Morgantown Energy Research Center (MERC) of the U.S. Government Energy Research and Development Administration (ERDA). The research pertains to hydraulic fracturing of oil and gas reservoir rocks with specific emphasis placed upon the acoustic mapping of induced fracture orientations, lengths and rates of propagation, and the mechanisms governing fracture propagation in oil and gas reservoirs. Information presented here is based upon a field experiment for acoustically mapping hydraulic fractures, and laboratory studies on acoustic emission from fracture initiation and growth in reservoir rocks. The field experiment was conducted in a petroleum reservoir in Bradford, Pa. Twelve hydrophone type sensors were placed at the oil bearing rock elevation of 2,030 feet from the surface in adjacent wells surrounding the fractured well. Complete directional acoustic velocity distribution and acoustic background noise levels were evaluated. The resulting measurements made during the hydraulic fracture mapping experiment, data analysis techniques and problems are discussed. Instrumentation developed and used in the data reduction and analysis is described. Laboratory hydraulic fracture stimulation experiments conducted in reservoir rocks are discussed with a description of techniques, instrumentation, and data analysis included.
Download or read book Emerging Technologies in Non Destructive Testing VI written by Danny Van Hemelrijck and published by CRC Press. This book was released on 2015-11-24 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-Destructive Testing (NDT) is of worldwide significance, and is strongly related to the detection of damage in engineering structures (buildings, bridges, aircrafts, ships, pressure vessels, etc.) using non-invasive techniques (ultrasound, X-rays, Radar, neutrons, thermography, vibrations, acoustic emission, etc.). Emerging Technologies in Non-D
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Hydraulic Fracturing Technology written by and published by . This book was released on 1993 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Bureau of Standards Catalog written by United States. National Bureau of Standards and published by . This book was released on 1977 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
