Results 271 to 280 of about 54,858 (313)

Laboratory Experiments in Fracture Propagation

Society of Petroleum Engineers Journal, 1984
Abstract This paper describes fracturing experiments in dry blocks of various rock materials. The results have application to evaluation of hydraulic fracturing theories. The block dimensions were 3 in.×4 in.×12 in. [7.6 cm × 10.2 cm × 30.5 cm] with metal plates epoxied to the 3-in. × 12-in. [7.6-cm×30.5-cm] faces.
W. L. Medlin, L. Massé
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Fracture propagation in organic glasses

International Journal of Fracture Mechanics, 1968
A quantitative assessment of the density of hyperbolic markings in the fracture surfaces of polymethyl methacrylate has been made showing that the density is proportional to the fracture toughness. In general the fracture toughness at any instance is a random function, but there is a definite tendency for it to increase with velocity of fracture ...
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Dynamical modelling of fracture propagation

Materials Science and Engineering: A, 1994
Abstract The numerical modelling of fracture propagation is proposed. Material is modelled as a triangular lattice whose bonds have short-range interaction. The interaction models the elastic properties of materials. Using a gaussian-type interaction, it is possible to describe fracture propagation without introducing a breakdown threshold.
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Gel Propagation Through Fractures

Proceedings of SPE/DOE Improved Oil Recovery Symposium, 2000
Abstract When gels are used for conformance control in reservoirs, a need exists to determine how much gel should be injected in a given application and where that gel is distributed (i.e., placed) in a naturally fractured reservoir. These parameters depend critically on the properties of gels in fractures.
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Propagation of a fracture in an infinite medium

Pure and Applied Geophysics, 1965
The displacement produced in an infinite homogeneous, isotropic elastic medium due to a steadily progressing crack has been obtained in a closed form by using Laplace transforms andCagniard's method. Numerical values of the displacement have been obtained and presented graphically.
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The propagation of fracture in aeolotropic materials

International Journal of Fracture Mechanics, 1965
The theory is developed for the propagation of a semi-infinite plane crack in an aeolotropic material where the direction of propagation lies in a symmetry plane. The rate of work done by the applied forces in maintaining a constant velocity is calculated. This work is dissipated in the surface energy of the extending crack.
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Fracture propagation in a naturally fractured formation

2015
Ching H. Yew, Xiaowei Weng
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Numerical investigation of fracture interference effects on multi-fractures propagation in fractured shale

Engineering Fracture Mechanics, 2023
Lu Qianli, Guo Jianchun, He Le
exaly  

Numerical Modelling of Fracture Propagation

1983
Why should one study fracture propagation? Is not prediction of fracture initiation the object of fracture mechanics? In his papers on rupture under tensile and compressive loading, Griffith1,2 proposed conditions for fracture initiation which he presumed to be coincident with structural instability. The vast majority of the fracture mechanics research
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Effect of different types of stimulation fluids on fracture propagation behavior in naturally fractured carbonate rock through CT scan

Journal of Petroleum Science and Engineering, 2021
Bo Gou, Jianchun Guo, Ji Zeng
exaly