Download or read book Seismic Reservoir Characterization of the Haynesville Shale written by Meijuan Jiang and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses on interpreting the spatial variations of seismic amplitude data as a function of rock properties for the Haynesville Shale. To achieve this goal, I investigate the relationships between the rock properties and elastic properties, and calibrate rock-physics models by constraining both P- and S-wave velocities from well log data. I build a workflow to estimate the rock properties along with uncertainties from the P- and S-wave information. I correlate the estimated rock properties with the seismic amplitude data quantitatively. The rock properties, such as porosity, pore shape and composition, provide very useful information in determining locations with relatively high porosities and large fractions of brittle components favorable for hydraulic fracturing. Here the brittle components will have the fractures remain opened for longer time than the other components. Porosity helps to determine gas capacity and the estimated ultimate recovery (EUR); composition contributes to understand the brittle/ductile strength of shales, and pore shape provides additional information to determine the brittle/ductile strength of the shale. I use effective medium models to constrain P- and S-wave information. The rock-physics model includes an isotropic and an anisotropic effective medium model. The isotropic effective medium model provides a porous rock matrix with multiple mineral phases and pores with different aspect ratios. The anisotropic effective medium model provides frequency- and pore-pressure-dependent anisotropy. I estimate the rock properties with uncertainties using grid searching, conditioned by the calibrated rock-physics models. At well locations, I use the sonic log as input in the rock-physics models. At areas away from the well locations, I use the prestack seismic inverted P- and S-impedances as input in the rock-physics models. The estimated rock properties are correlated with the seismic amplitude data and help to interpret the spatial variations observed from seismic data. I check the accuracy of the estimated rock properties by comparing the elastic properties from seismic inversion and the ones derived from estimated rock properties. Furthermore, I link the estimated rock properties to the microstructure images and interpret the modeling results using observations from microstructure images. The characterization contributes to understand what causes the seismic amplitude variations for the Haynesville Shale. The same seismic reservoir characterization procedure could be applied to other unconventional gas shales.
Download or read book Reservoir Characterization of the Haynesville Shale Panola County Texas Using Rock Physics Modeling and Partial Stack Seismic Inversion written by Sarah Bryson Coyle and published by . This book was released on 2014 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates the relationship between elastic properties and rock properties of the Haynesville Shale using rock physics modeling, simultaneous seismic inversion, and grid searching. A workflow is developed in which a rock physics model is built and calibrated to well data in the Haynesville Shale and then applied to 3D seismic inversion data to predict porosity and mineralogy away from the borehole locations. The rock physics model describes the relationship between porosity, mineral composition, pore shape, and elastic stiffness using the anisotropic differential effective medium model. The calibrated rock physics model is used to generate a modeling space representing a range of mineral compositions and porosities with a calibrated mean pore shape. The model space is grid searched using objective functions to select a range of models that describe the inverted P-impedance, S-impedance, and density volumes. The selected models provide a range of possible rock properties (porosity and mineral composition) and an estimate of uncertainty. The mineral properties were mapped in three dimensions within the area of interest using this modeling technique and inversion workflow. This map of mineral content and porosity can be interpreted to predict the best areas for hydraulic fracturing.
Download or read book Anisotropic Analysis and Fracture Characterization of the Haynesville Shale Panola County Texas written by Anthony William Barone and published by . This book was released on 2015 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: In unconventional resources such as the Haynesville Shale, a proper understanding of natural fracture patterns is essential to enhancing the economic success of petroleum extraction. The spatial density of naturally occurring fracture sets affects drainage area and optimal drilling location(s), and the azimuth of the strike of the predominant fracture set affects the ideal orientation of wells. In the absence of data to directly determine these fracture characteristics, such as Formation Microimaging (FMI) logs, these natural fracture patterns can be analyzed by examining the seismic anisotropy present in the reservoir. Anisotropy introduced from aligned fracture sets creates predictable azimuthal variations in the seismic wavefield. This allows the reservoir anisotropy, and thus the fracturing present in the reservoir, to be studied indirectly through the azimuthal analysis of industry standard 3D seismic data. The work presented here outlines three distinct methodologies, which utilize azimuthal amplitude variations (AVAZ) present in 3D seismic data, to infer fracture characteristics without the need for substantial well log information. Two of these methods have been previously established and assume the reservoir to be characteristic of Horizontally Transverse Isotropic (HTI). The last method is novel and assumes orthorhombic anisotropy when inverting for fracture density and is able to unambiguously invert for fracture azimuth. All methodologies used in this work produced similar results, increasing confidence in the accuracy of these results through statistical repeatability. Fracture density inversion results indicate spatially varying fracture density throughout the area, with a distinct area of higher fracture density present in the Northwestern corner of the area analyzed. Spatially varying fracture density and localized pockets of fracturing is consistent with expectation from analyzing production data and FMI logs from other areas of the Haynesville. Fracture azimuth inversion results showed some variability; however, the novel method presented in this thesis indicates that the azimuth of the predominant fracture set is oriented at a compass bearing of approximately 82 degrees -- rotated slightly counterclockwise from an east-west orientation. Fracture azimuth results agree well with expectations from a regional stress analysis and from examining comparable formations with known fracture patterns in the surrounding area.
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
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.
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 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Linking Petrophysical and Geomechanical Characterization to Production Behavior in the Haynesville Shale written by Silas O'Silas and published by . This book was released on 2019 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the Haynesville shale has become a target for natural gas exploitation, especially with the advent of horizontal drilling and hydraulicfracturing. Located in East Texas and Northwest Louisiana, it is believed to be one of the largest producing natural gas plays in the U.S., with estimated recoverable reserves of around 75 TCF according to the Energy Information Administration (EIA, 2011). Current total daily production for the entire play is around 5.4 Bcf/d. The economic potential of the Haynesville shale gas play is propelled by recent gradual rebounds in natural gas prices, increased industrial utilization of gas, and expansion of LNG export terminals along the gulf coast due to the lifting of the decades-old ban on exporting petroleum products. Consequently, it is imperative to properly evaluate the petrophysical attributes of the shale in order to understand the reservoir characteristics that may ultimately influence production. This study focused on the petrophysical evaluation of wells in East Texas and Northwest Louisiana. Wireline logs and core data were integrated to provide a predictive template for targeting and landing lateral wellbores within the shale in order to provide useful insight for hydraulic fracture stimulation with the view of optimizing production. The critical factors determined to influence the target zones include geomechanical properties such as brittleness, and geochemical properties such as the mineral volumes in the rock. These were calculated from logs using equations previously published in literature and correlated to nearby core measurements for verification. Already drilled and completed laterals were also evaluated to identify potential refracturing opportunities that could remedy production decline. The stimulation techniques and production outcomes of these laterals were examined in an attempt to identify possible trends and contrasts accordingly. The results show that the geomechanical properties vary across the shale play area. The geomechanical and geochemical properties can be useful in target selection for landing horizontal wells and effective fracture treatments, but they cannot by themselves guarantee productivity as other factors have to be taken into consideration such as completions method. The various operational constraints and development patterns such as different lateral lengths and age/style of completions make it difficult to do effective well-to-well production comparison; however the results points to trends such as longer lateral lengths with greater fracture stages to boost production. Additionally, in some areas, it has been established via the petrophysical analysis that there may be additional intervals in which to land a second horizontal well. This will surely lead to better exploitation and increased production from the reservoir.
Download or read book Practical Solutions to Integrated Oil and Gas Reservoir Analysis written by Enwenode Onajite and published by Elsevier. This book was released on 2017-05-19 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Solutions to Integrated Oil and Gas Reservoir Analysis: Geophysical and Geological Perspectives is a well-timed source of information addressing the growing integration of geophysical, geological, reservoir engineering, production, and petrophysical data in predicting and determining reservoir properties. These include reservoir extent and sand development away from the well bore, characterizations of undrilled prospects, and optimization planning for field development. As such, geoscientists must now learn the technology, processes, and challenges involved within their specific functions in order to complete day-to-day activities. A broad collection of real-life problems and challenging questions encountered by geoscientists in the exploration and development of oil and gas fields, the book treats subjects ranging from Basin Analysis, to identifying and mapping structures, stratigraphy, the distribution of fracture, and the identification of pore fluids. Looking at the well-to-seismic tie, time-to-depth conversion, AVO analysis, seismic inversion, rock physics, and pore pressure analysis/prediction, the text examines challenges encountered in these technical areas, and also includes solutions and techniques used to overcome those challenges. Presents a thorough understanding of the contributions and issues faced by the various disciplines that contribute towards characterizing a wide spectrum of reservoirs (Conventional, Shale Oil and Gas, as well as Carbonate reservoirs) Provides a much needed and integrated approach amongst disciplines including geology, geophysics, petrophysics, reservoir and drilling engineering Includes case studies on different reservoir settings from around the world including Western Canadian Sedimentary Basin, Gulf of Guinea, Gulf of Mexico, Milne point field in Alaska, North-Sea, San Jorge Basin, and Bossier and Haynesville Shales, and others to help illustrate key points
Download or read book Geologic Characterization and Reservoir Properties of the Upper Smackover Formation Haynesville Shale and Lower Bossier Shale Thorn Lake Field Red River Parish Louisiana USA written by Allison Elizabeth Keator and published by . This book was released on 2018 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reservoir Characterization Using Seismic Inversion Data written by Subhash Kalla and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress and Fracture Characterization in a Shale Reservoir North Texas Using Correlation Between New Seismic Attributes and Well Data written by Yves Serge Simon and published by . This book was released on 2005 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismic based Prediction Technologies For Shale Gas Sweet Spots written by Qingcai Zeng and published by World Scientific. This book was released on 2024-07-16 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a useful guide for researchers involved in the technological innovation and production of shale gas exploration and development. It offers a thorough understanding of seismic technologies and their application in shale gas exploration and extraction.This book comprehensively and systematically presents the significance of seismic technologies in predicting shale gas sweet spots. It introduces state-of-the-art seismic-based prediction technologies as well as case studies showcasing their implementation in primary shale gas production areas in China. Innovativeness is one of the highlights of this book. Cutting-edge technologies, such as AI applied in identifying shale gas sweet spots, and achieving excellent results in shale gas production are presented.Readers will gain insights into the latest methodologies, models, and real-world examples, equipping them with the necessary tools to navigate the complex landscape of shale gas resources.
Download or read book Data Integration for Reservoir Characterization written by Salem Gulaiyel Aljuhani and published by . This book was released on 1999 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical and Geological Reservoir Characterization of the Devonian Shales written by Gas Research Institute and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The reprocessing and reinterpretation of single-fold seismic data, using modern methods, improved the imgaging of deep structure of a portion of north-central West Virginia. Benefits of single-fold seismic data to hydrocarbon producers include: (1) relatively inexpensive means of identifying deep structures above which productive trends may be found; (2) aid to resolution of multi-fold seismic correlation difficulties; and (3) as an aid in locating areas for new seismic data acquisition.
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 417 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
Download or read book Shale Gas oil Reservoir Characterization and Maturity Determination Based on Various Experimental Analyses written by Md Golam Kibria and published by . This book was released on 2019 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the successful shale hydrocarbon exploration and production in the U.S. started about 20 years ago, the producing wells experience a current low total recovery of tight oil (5%-10%) and shale gas (12%-30%). One of the critical obstacles to sustainable shale development is related to the low recovery factor, which still needs much investigation. Hydrocarbon movement through shale reservoirs is controlled by two factors related to pore structure: one is pore size distribution(geometry), and another one is pore connectivity (topology). This Ph.D. research is divided into three different projects: 1) The 1st one is to improve the understanding of shale reservoir nanopore structure and wettability characteristics of Woodford Shale. For this research I examine mineralogy, pore structure, wetting characteristics, imbibition behavior, and edge-accessible porosity with the following complementary tests: X-ray diffraction (XRD), mercury injection capillary pressure (MICP), contact angle measurement of various fluids, fluid imbibition into initially dry shale, and edge-accessible pore connectivity from vacuum saturation-high pressure impregnation with tracers-containing n-decane. The wettability and imbibition tests use both hydrophilic (DI water) and hydrophobic (n-decane) fluids; 2) the second research is to use Laser Raman spectra of kerogens, G (graphitic) and D (disordered) bands of disordered carbonaceous matter, to relate the thermal maturity of representative shale oil samples, with the intention of establishing an empirical equation to determine thermal maturity directly using Laser Raman spectra with minimal sample preparation for potential 'on rig' use including the down-hole environment; 3) The third and last research is to investigate two different shale plays Haynesville and Pearsall Shale for an improved understanding of their petrophysical properties based on various experimental analyses. Overall, this dissertation will help to understand nanopore structure and wettability characteristics of unconventional shale, their nanopore structure characteristics and fluid flow behavior and establishing a method to determine thermal maturity directly using Laser Raman spectra.
Download or read book Seismic Attributes Assisted Quantitative Unconventional Reservoirs Characterization written by Xuan Qi and published by . This book was released on 2018 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
