... of pore pressure ranges to correlate fracture initiation and breakdown pressures will also be demonstrated as a valuable aid to design surface equipment pressure limits to enable fracturing. Applying depletion related Geomechanical concepts to fracpacks has resulted in understanding of high treating...

... region that there were issues completing the well. Following a novel workflow for determining depletion along the lateral, it was determined that the area of depletion correlated with higher breakdowns pressure and difficulty placing the designed hydraulic fracture treatments. It was determined...

.... The first observation is that the breakdown pressures recorded during each of the stimulation treatments tended to increase with increasing average rock MSE values, as shown in Fig. 3 . Unusually low breakdown pressures that have been highlighted are possibly associated with incomplete bridge plug...

... re-stimulation causing inefficient treatments and potential over-flushing with a loss in near well-bore conductivity supported by generally lower breakdown pressures in the 45°-off-azimuth well, and; 3) planes of shear failure pinching out, resulting in areas of stranded connectivity. A conceptual...

...: high tectonic stress is a basic cause of increased fracturing pressures, well deviation is a substantial contributor to the increase in the breakdown pressures, reservoir poroelastic properties are the reason for the accumulation of the back-stress, and perforation strategy is the key factor...

... was on the limitations and inaccuracies of computing log-based stress in horizontal laterals. The results presented in the paper provide important insight into the variation of in-situ stress along horizontal laterals as well as the associated change in breakdown pressure. As estimated breakdown pressure has become...

...-optimized stage Upstream Oil & Gas fracture plane operational efficiency Injection Rate friction pressure tortuosity perforation Standard Deviation frac-optimized system breakdown pressure unconventional well fracture treatment proppant stage society of petroleum engineers Introduction...

... section. Previous experience showed large stress variations in the layers with contained fractures, and fracturing all pay intervals required separate treatments for each interval. After notching the pay intervals to reduce breakdown pressures, the interval was fractured with three proppant ramps...

... in the near-wellbore is an important missing link to better engineer horizontal well multistage completions. Upstream Oil & Gas stress shadow hydraulic fracturing completion perforation cluster perforation pressure drop perforation friction breakdown pressure fracture propagation...

... gradient in psi/ft, for an assumed 1.0 psi/ft overburden gradient. This can also be interpreted as the breakdown pressure as a fraction of the overburden gradient. The color scale to the left of this plot gives the magnitude for each color, ranging from 0.4 to 1.2 psi/ft. The light blue-grey areas...

... breakdown pressure openhole Artificial Intelligence pore pressure fracture initiation geometry wellbore pressure propagation test 1 principal stress notch initiation pressure Wellbore Design test 3 longitudinal fracture notch depth orientation fracture Introduction The productivity...

... conference injection pressure propagate NMR shale core breakdown pressure propagation well logging complex reservoir isobar oil viscosity fracture fluid fluid viscosity spe 168619 Exhibition shale formation pore radius Several studies have been reported using NMR spectroscopic technique...

... propagation Completion Installation and Operations microannulus initiation pressure loss perforation wellbore Scenario interface equation Upstream Oil & Gas perforation tip boundary condition breakdown pressure propagation fracture misalignment angle Introduction McDaniel et al...