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Keywords: viscosity
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-0015
... stimulations for permeability increase. This study investigates proppant flow and transport through plexiglas slots enhanced with image analysis for tracking particle motions and quantifying slurry velocity field. Coupled effects of fracture intersection angle and fluid viscosity have not yet been fully...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1415
... fracturing experiments using analog-rock samples that were constructed with controlled heterogeneity for repeatable experiments. Fluids of different viscosities were injected at various volumetric rates to investigate their controls on hydraulic fracture patterns. We observed three distinct phenomena...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1919
... Abstract When steam is injected in preheating or production phase, fusing bitumen shows perfect mobile and joins into the oil-water two-phase flows. Bitumen viscosity is taken as the classification criterion, with the consideration of a steam drive screening criterion in which oil viscosity...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1220
... microseismic observations, and then used to simulate fault slip and total seismic moment associated with changes to hydraulic fracturing operations design. The model was used to investigate changes in hydraulic fracture stage volumes, rates and viscosities along with operational pauses and variations in well...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1065
... transition fault gouge instability rapid slide displacement viscosity instability reservoir characterization upstream oil & gas fluid injection dynamic equation landslide gouge instability shear stress gouge shear layer stress-strain curve shear layer landslide gravitational load...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1666
.... Two cement formulations (with and without perlite particles) were prepared under high temperature and high pressure. The impacts of PP on the properties of well cement such as density variation, viscosity, gel strength, compressive strength, Young's modulus and permeability were examined. The results...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1917
... (water-wall and oil-wall) molecular interactions, which can result in the nanoscale effects of the boundary slip and the varying interfacial fluid viscosity, will make the fluid flow behaviors more complex and difficult to characterize. Additionally, the change in pore size due to the stress sensitivity...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1248
... and evaluate performance, a full understanding of the underlying physics and robust numerical models are necessary. proppant simulation particle proppant particle hydraulic fracturing fracturing materials conway viscosity proppant concentration fracturing fluid correlation exhibition usa...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1267
..., adsorbed gas content, stage, fracture complexity, fracture conductivity, bottom hole pressure, and viscosity of gel breaking liquid. The study is applicable to optimize flow back manner in shale gas wells and enhance the productivity. 1. Introduction Recently, as a kind of clean energy, shale gas has...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1299
... melt and glass-formation temperatures and viscosities. We report here on: (a) development of a tailings characterization protocol; (b) development of a data base of tailings mineralogy and geochemistry for bulk rock/tailings, splits (by particle size), assessment of chemical and mineralogical...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1421
... development degree. Then, the effect of pumping rate and fluid viscosity on the propagation of multiple fractures was studied using the true tri-axial fracturing simulation experimental system, and the geometry of fracture initiation was observed through the distribution of tracers. Results showed that (1...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1784
...-dependent deformation due to volumetric compaction and fracture closure. Damage increase results in decrease of the effective viscosity of the material. 1. Introduction Time-dependent compaction or loss of pore volume due to external applied stress is important to understand porosity loss in earth...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1787
... drilling parameters such as pump flow rate (FR), plastic viscosity (PV), yield point (YP), Rate of penetration (ROP), revolution per minute (RPM), and mud weight (MW). The past practices of this method did not show significant improvements in well stability's events. This paper will introduce a numerical...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1814
... viscosity friction reducer (HVFR) in comparison to traditional guar linear gel fracture fluids. Two types of HVFRs (anionic and cationic) were also used for further rheological measurement analysis. The first section of the study sought to determine the effect of the fluid concentrations of both HVFRs...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1185
... properties of the rock and fissures, such as permeability and porosity. flow in porous media fissured rock viscosity upstream oil & gas simulation multiphase flow pore pressure forouzandeh reservoir characterization porosity grout gelation time dilution effect fissured rock boley...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1309
... completion designs. Using field conditions for a tight sandstone reservoir, we used a scaling procedure to define confining stresses and pumping conditions (fluid viscosity and flow rate) that are optimal to mimic field propagation behaviors in a laboratory setting. The scaling procedure is based on rigorous...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1168
... with higher DFN strength has smaller area of slipping fractures but larger area of open fractures. Decreasing the pumping rate to 10 bpm resulted in lower net fluid pressure but a larger stimulated volume. Increasing fluid viscosity 10 times resulted in much higher fluid pressure and more DFN failure. 1...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1865
... of the hydraulic fracture. The tensile-to-shear intermodal failure ratio is introduced to quantify the balance between tensile and shear effects on the interacting fractures. The effects of fracturing fluid viscosity and injection rate on the degree of tensile (mode I) failure, shear (modes II and III) failure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0103
.... This ultimately results in a slight increase of fracture opening and net pressure. hydraulic fracturing fracture tip time step algorithm cohesive zone Upstream Oil & Gas Garagash net pressure toughness fluid lag modeling viscosity Detournay evolution time evolution fluid front Lecampion...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0263
..., the shear viscosity of the fracturing fluid remains over 50 mPa•s, with friction reduction above 75% for as long as 90 mins continuous shearing and the advantage of low residue, complete gel-breaking and low formation damage. The novel fluid system is a fit-for-purpose solution to the problem of ultra-deep...

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