... ABSTRACT: In order to evaluate the growth of fractures for cuttings re-injection, a solid transport model is included in a solidfluid coupled hydraulic fracturing simulator. The fracture geometry is a critical factor affecting the safety of the re-injection operation, and solid particle flow...

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... ABSTRACT: Adequate determination of the propped fracture geometry is critical for Frac Pack hydraulic fracture designs and analyses. Unfortunately the fracture geometry is difficult to determine in complex reservoirs, primarily because of the difficulty to determine the post tip screenout...

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... Abstract. Hydraulic fracturing is the most dominant method of in-situ stress measurement at great depths. It is based on the fundamental concept that the extension fluid pressure is relatively constant inside the hydraulic fracture and slightly greater than the least in-situ principal stress...

... under negative net shear stresses as a result of the slip-weakening mechanism which helps explain the success of hydraulic fracturing in promoting shear fracturing along planes of weakness. A critical length for shear fracture initiation exists as a result of use of a slip-weakening friction law...

... in the same borehole. Djurhuus and Aadnøy [3] presented a general solution to the problem and showed that the linearized version produces good solutions to the in-situ stresses and their directions. Reservoir Characterization stress ratio Upstream Oil & Gas hydraulic fracturing reservoir...

... ABSTRACT: Understanding and modeling near-surface hydraulic fracture growth is of interest because fracturing is being used to induce caving near mine openings and for remediation work at shallow environmental waste or spill sites. Thus motivated, near-surface hydraulic fracturing experiments...

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... of opening-mode fracture aperture-size data sets so that the aperture-size distributions from different rocks may be compared and the range of intensities of naturally occurring fractures of different aperture sizes may be constrained. Reservoir Characterization hydraulic fracturing Artificial...

... of conservation of momentum can be written as (available in full paper) well planning rock fragment impact force hydraulic fracturing restitution particle trajectory design Simulation momentum coefficient impact load Magnitude kinetic energy fracture ore pass impulse time collision peak...

... measure of a materials resistance to fracture. Over the last three decades more research has focused on the physics of particle fracture during the crushing process and the material characteristics related to fragmentation. hydraulic fracturing fracture toughness Reservoir Characterization...

... test Magnitude anchor point deformation fracture hydraulic fracturing time step discontinuous deformation analysis thermal-mechanical behavior deformation DDA 1. INTRODUCTION Coupled thermal-mechanical behavior of fractured rocks is an important consideration in the design of civil...

... and a borehole intersected by an induced or natural fracture. Using existing borehole stability theories and basic hydraulic fracturing analysis, the authors review and evaluate various means available to alter the size of the mud weight window. Of particular interest are the two limiting cases: a circular...

... ABSTRACT: The Jackfork sandstone formation is widely distributed in the Ouachita Mountains in southeastern Oklahoma and southwestern Arkansas, USA. It has become of interest in recent years because substantial gas reserves have been found. As the formation is very tight, hydraulic fracturing...

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... ABSTRACT: Linear elastic fracture mechanics is widely used to describe fracture behavior in hard rock, and fracture toughness values for many such rocks are in the literature. The main application has been in hydraulic fracturing. However, hydraulic fracturing operations are now widely...