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Showing 1 to 18 of 18 for “"Geomechanical properties"”.
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Geomechanical property changes with hydrous pyrolysis in Mahogany oil shale in Green River Formation
… maturation has on the immature organic matter on geomechanical properties of the formations. In order to quantify the behavior of the oil shale samples under thermal maturation, it is imperative to understand its elastic properties. Thus, it becomes vital to understand the shale’s elastic …
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Laboratory Investigation of Shear Behaviour in Rock Joints Under Varying Boundary Conditions
… and therefore it is essential to determine their geomechanical properties in order to predict rockmass behaviour and prevent any potential failure that would pose a threat to personnel safety or damage property. A common method of determining the mechanical properties (e.g. stiffness, strength, …
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Mechanical stratigraphy and sonic log relationships using the Proceq Bambino in the Niobrara Formation, Denver Basin
… the resolution, accuracy, and confidence in geomechanical estimations. The Bambino gives readings in Leeb Hardness (HLD). HLD measurements are defined as the ratio of rebound velocity to impact velocity. Preliminary data was taken from the Niobrara Formation in a Denver Basin core to …
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Geochemical and geomechanical alteration of sandstone reservoir rock and shale caprock under representative geological carbon sequestration conditions
… react with pH-sensitive minerals, affecting the geomechanical properties of the formation. This dissertation explores the impact of geochemical reactions of low-pH brine on the geomechanical properties of sandstone reservoir rock and shale caprock. In the first study, Mt. Simon Sandstone is …
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Geomechanical impact of bio-competitive exclusion chemical on reservoir rocks.
… effects of nitrate on the geochemical and geomechanical properties of the rock have not been considered under static and flooding conditions. This work uses a combination of UCS, analytical and PSD tests to experimentally investigate the geochemical and potential geomechanical effects of …
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Application of Raman Spectroscopy and Transmission Spectroscopy for Shale Reservoir Characterization: Thermal Maturity Correlation and Organic Matter Type Differentiation
… of shale formations related to their reservoir properties have received increasing attention. These include: 1) the development of porosity in the OM with increasing thermal maturity; 2) the permeability of shale formations and techniques for its measurement; 3) the distribution of OM in the …
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A framework for comparing geomechanical models of InSAR-measured surface deformation
… become widely available over the past decade. Geomechanical models based on InSAR data occur frequently in the literature but few methods of systematically optimizing or comparing them are presented. This work discusses parameterization errors for simplified models of strike-slip, normal, …
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Anisotropic analysis of unconventional reservoirs using rock physics model: Eagle Ford shale case study
… physics models help characterize the elastic properties of conventional and unconventional reservoirs. In this thesis, I present a novel rock physics model for organic-rich shales. The extended Maxwell homogenization scheme is utilized as a rock physics model for transversely isotropic media. …
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Anisotropic analysis of unconventional reservoirs using rock physics model: Eagle Ford shale case study
… physics models help characterize the elastic properties of conventional and unconventional reservoirs. In this thesis, I present a novel rock physics model for organic-rich shales. The extended Maxwell homogenization scheme is utilized as a rock physics model for transversely isotropic media. …
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Force Chain Detection in Unconsolidated Sands
Understanding the geomechanical properties of rocks is vital in petroleum engineering. The compressibility of a formation often correlates directly with the productivity of that reservoir. It is a common practice to extract core samples from reservoirs for the purposes of obtaining the reservoir …
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Enhanced Laboratory Testing and Characterization Related to the Mechanics of Anisotropic Rock
… it is important to use testing methods measuring geomechanical properties with a high degree of accuracy and repeatability. Tensile strength is commonly measured via the indirect tensile strength test, intact elastic components and compressive strength are measured via the unconfined compressive …
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Laboratory Strength Testing of Argillaceous Limestone Under Varying Saturation, Scale, Loading Rate, and Confinement Conditions
… influences of various testing conditions on the geomechanical properties of Cobourg limestone, to address the changing in situ conditions that may be present during long-term storage of nuclear waste. The effects of specimen saturation, scale, loading rate, and confinement have been investigated …
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Experimental Studies on the Geomechanical Behavior and Heterogeneity in Laboratory Synthesized Hydrate-bearing Sands
… the host sediment. The enhancement in mechanical properties is influenced by various factors, such as hydrate saturation, in-situ stress conditions, sediment type (fine-grained or coarse grained). Our current understanding of HBS behavior is based on studies of laboratory synthesized …
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Numerical simulation of fluid flow, proppant transport and fracture propagation in hydraulic fractures for unconventional reservoirs.
… investigate the effect of variation in proppant properties, fracturing fluid properties and geomechanical properties on the proppant transport. This study has enhanced the understanding of the flow and interaction phenomenon between proppant and fracturing fluid, and provides a technique with …
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Unconfined compressive strength prediction using drilling parameters and analyzing feature importance through principal components analysis
Knowledge of geomechanical properties is beneficial if not essential for drilling and completion operations in the oil and gas industry. The Unconfined Compressive Strength (UCS) is the maximum compressive force applied to cylindrical rock samples without breaking under unconfined conditions. …
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Advancements for the Numerical Simulation of Free Fall Penetrometers and the Analysis of Wind Erosion of Sands
… their portability and robustness. The sediment properties obtained with this type of testing can later be used to assess wind erosion susceptibility by determining, for example, the wind velocity to initiate the erosion process. FFP testing involves dropping an instrumented probe that impacts …
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Diagenetic, thermal and provenance histories of the Permian lower Ecca Group based on two newly drilled boreholes in the western and eastern main Karoo Basin, South Africa
… well pressure and temperatures on their geomechanical properties such as compressive strength and elastic moduli. Sedimentary rocks in both boreholes were affected by burial and regional metamorphism (linked to orogenic events), but the sedimentary rocks in BH KWV-1 were also altered by …