...1 PAPER 2009-187 Pore-Scale Modelling of the Effect of Viscous Pressure Gradients During Heavy Oil Depletion Experiments I. BONDINO TOTAL E&P UK Ltd. S.R. MCDOUGALL Heriot-Watt University G. HAMON TOTAL E&P This paper is accepted for the Proceedings of the Canadian International Petroleum...

... in Bohai oilfield to optimized production rates and well productivity. Sanding prediction model predicts the production condition, e.g. pressure drawdown, at which sand production occurs and how much sand will be produced (rate and duration). It will be shown latter that, the pressure gradient variable...

... unclear. The relative permeability concept can be used to describe behaviour of multiple phases flowing together through porous media, interfering and aiding each other to move under the action of a pressure gradient. Despite the importance of relative permeability in fracture flows, still...

... the steam chamber. In the present case, oil production is reduced by 5% when the pressure gradient inside the injector is considered. Introduction Steam Assisted Gravity Drainage (SAGD), a thermal process that involves the application of steam and the use of horizontal wells is a bitumen recovery method...

... of setting time, a deeper penetration into the form simultaneous brine upstream oil & gas gel performance gel placement pressure gradient chromium fluid dynamics application brine enhanced recovery experiment permeability reduction porous medium residual resistance factor...

... been developed. Stable reduction in permeability to other fluids was observed as the plug withstood 42,500 kPa/m (about 1,800 psi/ft) pressure gradients. Criteria are defined for field application of this blockage phenomenon. Introduction An emulsion is a dispersion of two mutually insoluble liquids...

...-Canada employs at MacKay River. Various flow rates were tested for the two completions to see how the steam injection rate affected the steam to toe time. Next the circulation pressure along with the injector/producer pressure gradient was investigated. Various pressure gradients were applied between...

... formulation flow rate temperature condition flow regime bingham plastic drilling fluid property drilling fluid chemistry gradient frictional pressure loss drilling fluids and materials pressure gradient upstream oil & gas 1 PAPER 2007-125 New Improvements on Managed Pressure Drilling B...

... permeability flow in porous media gas saturation gradient relative permeability average pressure differential pressure gas relative permeability system 1 upstream oil & gas experiment depletion experiment solution gas drive system 3 enhanced recovery pressure gradient...

... with the length of la flows from injector to producer through the pore-throats in neighborhood, the pressure gradient is: a we a l pp gradp = (11) Select the value of a in the first line of table 1, the corresponding length of the streamline calculated with equation (10) is list in the second line, the third...

... fluid compatibility pressure gradient mechanism permeability upstream oil & gas surfactant concentration emulsion injection chemical treatment blockage experiment porous medium reduction oilfield chemistry emulsion rock/fluid interaction concentration pore throat fluid...

... steam injection injection thermal method instability sequence pressure gradient gradient dilation sagd fracture permeability mechanism viscous oil upstream oil & gas injection phase vapex viscosity reservoir steam-assisted gravity drainage communication enhanced recovery...

..., which in turn causes a significant decrease in the pressure gradient. y w 1. Introduction and a Model Slurry flows in fractures during hydraulic fracturing are characterized by high mean shear rates ( wumw up to 200 1/s, where mu is the mean slurry velocity, w is the fracture width (see Fig.1...

... in the temperature were generally 0.6°C. Further, the movement of the core and the CT scanning resulted in additional 3 temperature disturbances. At 30-33.2 days there was a sudden temperature drop of 2°C, this resulted in a marked drop in pressure at this time (Figure 4). The pressure gradient that develops in each...

... gradient gas well flow rate fluid level measurement production monitoring traverse liquid average gradient wellbore production control gaseous liquid column gas liquid interface drillstem/well testing pressure gradient liquid column bottom hole pressure compute acoustic velocity...

... faults. CO2 migrating upwards is a process generally controlled by formation pressure gradient and CO2 gravity, affected by the changes of CO2 properties such as density, viscosity, enthalpy and phase state along the paths, and companied with heat transfer between escaping CO2 and the leakage paths...

... gradients are inferred into the reservoir and overpower the relatively small pressure gradients in the production wells, resulting in a sloped fluid interface. The fluid accumulates to compensate for the overall pressure gradients by increasing hydrostatic head in the lower pressure areas of the reservoir...

.../m were discarded because they represented either lowered closure pressures recorded in depleted reservoirs, or recorded fluids being injected into the pore network with no actual fracturing. Also excluded were mini-fracture tests run in reservoirs with fluid pressure gradients of less than 8 kPa/m...

... Newtonian and non-Newtonian fluids in coiled tubing was simulated using the-state-of-the-art CFD software - FLUENT ®. The unique flow patterns revealed by the simulations are discussed. The friction pressure gradients predicted by the CFD simulations were verified by comparing with the previous correlations...

... for the case of oil and water flow. V K K P ROIL ABS RO o o = µ 1) V K K P RWATER ABS RW w w = µ 2) Darcy stated that the velocity of the fluid is inversely proportional to the viscosity of the phase and proportional to the absolute permeability, the relative permeability and the pressure gradient...