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Geology and Geometry: A Review of Factors Affecting the Effectiveness of Hydraulic Fracturing
Proceedings of SPE Eastern Regional Meeting, 2005Abstract Thousands of wells are hydraulically fractured in the Appalachian Basin each year with little clear understanding of what the resulting fracture actually looks like. A number of variables exist in the subsurface including natural fractures, permeability variations, in-situ stresses, faults, etc.
R. B. Willis +3 more
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A modified seismic reflection approach for engineering geology investigation in fractured rock zones
Engineering Geology, 2020Abstract Delineating soil/rock interface is critical for geotechnical and tunnel site investigations in engineering geology. In Singapore, we also need to draw attention to local faults and fractured rock zones because the regional geology of Peninsular Malaysia and Singapore contains some minor, steep and brittle faults propagating at some areas in ...
Yunhuo Zhang, Yunyue Elita Li, Taeseo Ku
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The axial cleavage fracture 1 Axial cleavage fracturing, a significant process in mining and geology
Engineering Geology, 1965Abstract The attention is called to the systematic occurrence of fracturing in brittle rock parallel to the major load axis at triaxial differential compressive loading. The axial fracture plane shows the features of the tensile brittle ( cleavage) fracture; this circumstance has led to the nomenclature “axial cleavage fracture”.
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Geology and Geometry: A Review of Factors Affecting Hydraulic-Fracture Effectiveness
Journal of Petroleum Technology, 2006This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 97993, "Geology and Geometry: A Review of Factors Affecting the Effectiveness of Hydraulic Fractures," by R.B. Willis, SPE, and J. Fontaine, SPE, Universal Well Services Inc.; L. Paugh, SPE, Great Lakes Energy Partners LLC; and L.
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Folding and Fracturing of Rocks : the birth of modern structural geology
Geological Society, London, Special Publications, 2018Abstract In 1967, the publication of John Ramsay's book, Folding and Fracturing of Rocks , was a landmark event that affected both of us, inspiring us into careers in structural geology. At that time, one of us was a postgraduate student at Imperial College, London, the other a second-year undergraduate at
Susan H. Treagus, Peter J. Hudleston
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Predicting hydrology of fractured rock masses from geology
2000Fracture network connectivity often dominates movement rate, flow volume, and mass transport through rock masses. These networks influence the effectiveness of petroleum reservoir development, safe disposal of nuclear waste, delineation of water supply or establishment of well-head protection plans, recovery from geothermal reservoirs, solution mining,
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International Journal of Oil, Gas and Coal Technology, 2015
A great portion of the world's oil reserves is contained in naturally fractured reservoirs (NFRs). As the conventional oil and gas reservoirs have become significantly depleted whereas energy demand sharply increases, the NFRs play an important role in oil exploration and make a large contribution toward oil and gas production worldwide.
Chen, Zhangxing (John) +3 more
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A great portion of the world's oil reserves is contained in naturally fractured reservoirs (NFRs). As the conventional oil and gas reservoirs have become significantly depleted whereas energy demand sharply increases, the NFRs play an important role in oil exploration and make a large contribution toward oil and gas production worldwide.
Chen, Zhangxing (John) +3 more
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A theory of fracture of materials and its application to geology
Eos, Transactions American Geophysical Union, 1950A theory of fracture of materials is developed which encompasses shear and tension failure. The probability of fracture occurring across a given surface element in an isotropic medium is assumed to be a general function of the limiting normal and tangential stresses across that element. A modification is later introduced to allow for anisotropy wherein
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Tectonophysics, 1997
Abstract A geostatistical approach is used to analyze the spatial distribution of fracture density in shear zones. The methodology proposed is illustrated with data obtained from the mapping of drift walls at the Henderson mine in the Chibougamau mining district, Quebec.
O. Tavchandjian +4 more
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Abstract A geostatistical approach is used to analyze the spatial distribution of fracture density in shear zones. The methodology proposed is illustrated with data obtained from the mapping of drift walls at the Henderson mine in the Chibougamau mining district, Quebec.
O. Tavchandjian +4 more
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Geology of Mode I, Hybrid and Mode II Fractures - What Do we Really Know?
78th EAGE Conference and Exhibition 2016, 2016Mode I and mode II and hybrid fractures are concepts frequently used in structural geology studies. While their definition is clear, there is surprisingly little knowledge on how these features form, at which depth and in which stress conditions. This is unfortunate as different modes of fracturing impact, among others, reservoir permeability and ...
G. Bertotti, A. Barnhoorn
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