... reservoir society of petroleum engineers pressure fall-off pressure gradient injection Introduction There are many factors that impact SAGD operations, such as surface facility maintenance, transportation constraints, downhole workover, etc. Periods of shut-in and slow-down, where the injection...

... Abstract A pressure-gradient-based sand failure criterion has been proposed and validated to quantitatively determine the sand production and then characterize the corresponding wormhole growth and its propagations during cold heavy oil production with sand (CHOPS) processes. The new sand...

..., a significant pressure gradient is deliberately created along the horizontal length of the injector well by tailoring the well completion design. Enhanced flow resistances can be fashioned by using finned tubes, static mixers, flow constrictions or simply using tube sections with varying diameters...

... Abstract In a cyclic solvent injection (CSI) process, a solvent gas is cyclically injected, soaked, and released to produce heavy oil. Through this process the operating pressure is decreased and increased cyclically. This causes a dynamically changing pressure gradient across the solvent–oil...

... permeability porosity production rate saturation Canada CSI well pressure gradient reservoir Introduction The simulations discussed in this paper were part of the $40 million 2006-2010 Joint Implementation of Vapour Extraction (JIVE) Program that ran from 2006-2010 ( Kristoff et al., 2008...

... Upstream Oil & Gas roughness Simulation enhanced recovery complex reservoir Thickness viscosity hydrodynamic roughness pressure loss application production monitoring production logging coating thickness correlation flow rate pipeline experiment pressure gradient flow cell Oil...

... it to be modeled as a coupled process: multiphase fluid flow causing transient pressure gradients and geomechanics to calculate the resultant stress variation, permeability enhancement and shear/tensile failure around the induced dilated zone and finally coupling failure criterion for the dilated zone propagation...

... pressure to obtain the highest net present value (NPV) based on the fact that more steam is released through the lean zones at a higher pressure. enhanced recovery thermal method Artificial Intelligence SAGD connate water saturation steam chamber pressure gradient Upstream Oil & Gas lean...

...-pack experiments suggest that the HTG has good injectability that ensures the on-site construction safety. Moreover, the HTG has a high breakthrough pressure gradient after gelling and could keep the plugging ratio above 99.8% after gel breakthrough when the subsequent injected volume reaches 10PV...

... in regional sands or post-CHOPS systems, it may not be easy to pressurize these reservoirs for solvent-based recovery. Chemical flooding has potential for EOR in these systems, because the injection of chemicals can lead to the buildup of pressure gradients between injectors and producers, at least...

... injection to "condition" a reservoir interval sufficiently to relieve the overburden stress on the oil sand and increase its porosity and permeability. Establishing a pressure gradient between a set of injector and producer wells allows the production of a bitumen-sand-water slurry as the pressure gradient...

... pro- duction and transportation. bitumen friction loss pipeline complex reservoir concentration diameter fraction pressure gradient oil sand Upstream Oil & Gas viscosity water-assisted flow water fraction frictional pressure loss free water fraction enhanced recovery water...

... balances the gravity, pressure gradient and oil drag. Since gravity is a constant, and for a given mesoscale structure, the oil flow rate and hence the drag is determined by the imposed macroscopic pressure gradient, without information from sub-grid-scale pressure variation, we assert that the pressure...

... behavior slug flow viscosity laminar pressure gradient turbulent flow holdup drift velocity Introduction In oil production, an increasing amount of the oil being produced is considered heavy or extra heavy of 0.1 – 10 Pas (100 – 10,000 cp). To design systems to produce and transport...