Results 121 to 130 of about 31,303 (164)
Some of the next articles are maybe not open access.
Propagation of a Vertical Hydraulic Fracture
Society of Petroleum Engineers Journal, 1972Abstract This paper treats the propagation of hydraulic fractures of limited vertical extent and elliptic cross-section with the effect of fluid loss included. Numerical and asymptotic approximate solutions in dimensionless form give the fracture length and width at any value of time or any set of physical ...
openaire +1 more source
Effect of a natural fracture on hydraulic fracture propagation
2004The effect of an existing fracture in a naturally fractured formation on the extension of a hydraulically induced natural fracture has been studied. Fracture interaction criterion was presented and a numerical model was developed to predict the dynamic fracture dimensions based on PKN³¹ fracture mechanics.
openaire +2 more sources
Fracture propagation in organic glasses
International Journal of Fracture Mechanics, 1968A 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 ...
openaire +1 more source
Dynamical modelling of fracture propagation
Materials Science and Engineering: A, 1994Abstract 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.
openaire +1 more source
Gel Propagation Through Fractures
Proceedings of SPE/DOE Improved Oil Recovery Symposium, 2000Abstract 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.
openaire +1 more source
Propagation of a fracture in an infinite medium
Pure and Applied Geophysics, 1965The 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.
openaire +2 more sources
Fracture propagation in a naturally fractured formation
2015Ching H. Yew, Xiaowei Weng
openaire +1 more source
Numerical Modelling of Fracture Propagation
1983Why 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
openaire +1 more source