... Abstract The propagation path of hydraulic fracture is significantly affected by the properties of cemented natural fractures (i.e., veins), such as, stiffness, tensile and shear strength, and flow characteristics. Moreover, the magnitude of stress anisotropy can control the results...

... gradient strength propagation pressure effective stress tensile strength Introduction Abstract Accurate prediction of net hydraulic fracture propagation pressure is often impossible. Under some conditions the pressure drop along the fracture dominates while in other cases the pressure...

.... The combined loads were compared to the casing's yield strength. The failures were not systemic but included cracking related to fatigue, hydrogen and sulfide stress embrittlement, and erosion at ERW weld lines. The failures were observed at various well depths, both in the cemented and uncemented hole...

... flowline corrosion hydraulic fracturing isolation stimulation casing design Upstream Oil & Gas Pipeline Corrosion riser corrosion strength completion King materials and corrosion casing and cementing severity subsidence construction corrosion consideration erosion society...

...-/micro-frac In situ stresses Elastic properties Strength parameters of intact rocks Strength parameters of natural fractures Microseismic PLT/DTs/DAS Tracer & isotope EUR from RE Drilling cost Completion cost Market prices The model geometry considers layering of the reservoir formations...

... affecting fracture conductivity are closure stress and proppant characteristics (concentration, size, and strength). For unpropped fractures, the fracture topography is the main factor in determining fracture conductivity. The topography interaction of the two surfaces determines the fracture width. Higher...

... approaches by removing stress singularities at the fracture tips, and simulation of progressive fractures without any essential need for remeshing. This model would provide a robust tool for modeling hydraulic fracture growth using conventional elements of FEA. Artificial Intelligence strength...

... and strength, the anisotropy of the horizontal stresses, the overpressure conditions, the friction angle of kerogen, the orientation of the pre-existing microfracture network with respect to the current stress state and –to a lesser extent- the elastic moduli of the rock matrix, are the most significant...

... Abstract A new substrate, based on nanotechnology, that has strength greater than an intermediate strength proppant and a high surface area for chemical adsorption has been introduced and applied in deep water well in order to inhibit barium scale deposition for a prolonged period of time...

... is limited to 20,000 psi. Therefore, operators have recognized the need for higher strength, higher performance proppants for these "unconventionally" deep, high stress reservoirs. New Proppant Technology Abstract Nearly all of the proppant available on the market today can be classified into one...

... hydraulic fracturing Upstream Oil & Gas strength delamination fracture wellbore integrity mechanical property fracture transverse fracture fluid pressure integrity wellbore annulus failure cement annulus fracture propagation spe 168642 fracture propagation interface...

... slurry properties. Zonal isolation through cementing is influenced by cement properties such as density, set control, gel strength development, fluid loss control, and strength development. The first step in achieving effective annular seal is successful placement of the cement sealant. The cement must...

.... The cohesive zone model includes a cohesive strength and an energy release rate in the calculations at the tip of a propagating hydraulic fracture. Simulated fracture lengths without leak-off are compared with analytical solution for both KGD and penny-shaped models, but poroelastic/poroplastic formation...

... definition of mineralogical brittleness is proposed and verified with two independent methods of defining brittleness. Formation with higher brittleness is considered as good fracturing candidate. However, this viewpoint is not reasonable because brittleness does not indicate rock strength. For instance...

.... This study evaluated the key factors that may result in conductivity loss within the Bakken and Three Forks reservoirs. Various proppants and reservoir rock cores were exposed to common fracturing and formation fluids at reservoir conditions. The hardness of the rock cores and the strength of the proppants...

... The Nierode and Kruk model ( Nierode and Kruk, 1973 ) need a parameter that represents the rock opposite strength to the normal closure stress acting on fracture faces. This parameter is the rock embedment strength (RES). The Nierode-Kruk’s reasoning involves accepting that the mechanical rock...

..., suggesting an analogue for laminated and shaly sedimentary sequences. hydraulic fracturing strength intersection spe 152618 upstream oil & gas experiment leakage complex reservoir natural fracture geometry diversion fracture interaction natural fracture interaction hydraulic fracture...

... fracturing fluid ceramic proppant spe 139875 diagenesis fracturing materials upstream oil & gas precipitation mechanism formation water proppant strength diagenetic material conductivity hydraulic fracturing dissolution degradation proppant type reservoir chemistry...

... the impact of shale-proppant grain contact. Abstract Laboratory experiments under reasonable Haynesville Shale reservoir temperature conditions have shown that an uncoated ceramic proppant and shale samples changed significantly in key physical properties. Proppant tensile strength was reduced...

.... Analytical calculations indicate that shear associated with hydraulic fracturing is likely in unconsolidated sands at depth, but cases of high overpressure promote tensile mode fracturing. An expression is derived to predict the rock strength required in terms of UCS to achieve tensile fracture. Preliminary...