... field observation fracture toughness hft-2 fracture length bx4h Introduction Hydraulic fracturing modeling requires an array of inputs including regional and structural properties, stratigraphic definitions, rock properties representative of the region of interest, reservoir pressure...

... augmented depletion development technology geological subdiscipline fracture toughness technology conference proceedings reservoir geomechanics bakken eagle ford petroleum engineer geology hydraulic fracturing implementation energy economics permeability unconventional resource technology...

... have been deployed and shown to consistently generate horizontal storage lenses with excellent connectivity to vertical wellbores. Novel methods have been developed and demonstrated for effectively increasing the fracture toughness of the rock matrix; this results in net pressures and lens widths about...

... characterization proppant upstream oil & gas fracture toughness reservoir geomechanics fracturing fluid stress intensity factor fracture containment hydraulic fracturing fracture characterization fracturing materials calculation structural geology net pressure fracture height collinear crack...

... and pack fracturing materials drillstem testing history matching stress intensity factor fracture location pressure distribution fracture pressure bottom tip fracture height fracture half-height hydraulic fracture calculation fracc and pack pressure drop mpa perforation fracture toughness...

...-In Pressure (ISIP) trends along the wellbore, and (8) the effect of understressed/underpressured layers. We discuss practical modeling decisions in the context of field observations. Upstream Oil & Gas Modeling & Simulation hydraulic fracturing Artificial Intelligence fracture toughness...

... of controlling parameters such as far-field stress contrast, perforation properties, and fracture toughness on multiple hydraulic fracture growth from a cluster of perforations is studied. The results show that closely spaced fracture clusters or swarms can occur for a certain range of conditions...

.... Conversely, crossing from a soft to a hard layer, a fracture tends to kink at a slight angle as it approaches the interface. The angle at which the fracture turns increases as the contrast in Young's modulus and fracture toughness between the layers increases and/or the differential stress decreases. Tensile...

... not provide reliable results. We revisited the equilibrium height problem, and our theoretical and numerical investigations led to a new model that fully characterizes height evolution amid various formation properties (fracture toughness, in-situ stress, thickness, etc.). The new model, for the first time...

... fracture toughness fracture propagation interface interaction Introduction Abstract Weak formation bedding planes create a unique mechanism for hydraulic fracture height containment. They arrest the vertical growth of hydraulic fracture. The propagation across them may or may not occur...

... fracture fluid leak-off, has a dominant influence on the interaction between a hydraulic fracture and a natural fracture. In addition, the fracture toughness of the rock, the toughness of the natural fracture, and the shear strength of the natural fracture also affect the interaction between a hydraulic...

.... hydraulic fracturing strength complex reservoir shale reservoir shale gas mineralogical brittleness Upstream Oil & Gas correlation brittleness fracture barrier fracture toughness Poisson Barnett shale strain energy release rate limestone fracability index model fracability index...

... impermeable medium. The real problem of hydraulic fracturing in an elastoplastic medium has been represented in the model as brittle hydraulic fracture growth in a quasielastic medium. The medium resistance to fracture development is determined by variable apparent fracture toughness, which is a function...