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NETLA generalized constitutive stress-strain relation, which includes the effects of both tensile and shear stresses on crack growth, is presented. A bedded-crack version of the...
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Dataset Size: 8.84 MB
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NETLModels of 3D fracture propagation are being developed to study the effect of variations of stress and rock properties on fracture shape and bottomhole pressure. Initially a...
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Dataset Size: 3.046 MB
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NETLMassive hydraulic fracture mapping field experiments continued in FY 78 with the major activity being an improvement program for the surface electrical system. The potential...
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Dataset Size: 4.575 MB
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NETLOil shale solid wastes were evaluated for possible use as soil stabilizers. A laboratory study was conducted and consisted of the following tests on compacted samples of soil...
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Dataset Size: 0 bytes
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NETLA laboratory investigation has been conducted to determine the basic mechanical properties of Antrim oil shale. The strength and deformation properties were studied in...
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Dataset Size: 6.642 MB
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NETLDesign optimization in underground coal systems. Sections 1-4. Interim report, October-December 1978Work on the structural properties of coal and rocks was confined to preparation of the final report Structural Characteristics of Coal. Continued effort was made to upgrade and...
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NETLThis project has involved development of a hydraulic fracture simulator which calculates fracture height as a function of distance from the wellbore in a situation in which a...
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Dataset Size: 19.642 MB
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NETL"A rock testing program is defined and carried out to determine the mechanical constants of an underground coal gasification chamber overburden. It encompasses tensile tests...
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Dataset Size: 18.097 MB
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