... even though post-mortem visual observations of the porous sample it did not reveal open hydraulic fractures. Upstream Oil & Gas steady-state model viscosity enhanced recovery polymer injection porous medium polymer flooding Zitha chemical flooding methods Fluid Dynamics injection...

... for heavy oil reservoirs. Artificial Intelligence Brine Upstream Oil & Gas polymer injectivity viscosity porous medium chemical flooding methods normalised concentration polymer solution viscosity pressure drop polymer concentration salinity injectivity polymer solution shear rate...

... flow rate experiment test section calcium sulphate precipitation anhydrite permeability ratio permeability porous medium pressure drop scale formation concentration formation damage variation solubility spe 165157 Introduction The success and economic justification of a water...

... are incompressible but particle rearrangement can take place at the injection face of the porous medium. The mass conservation equation for the one-dimensional flow of a suspended particles described above can be written as ( Herzig, 1970 ; Altoe, 2004 ), (1) ϕ ∂ t c + u ∂ x c = ϕ D...

... tendency to react with CO 2 ( Sengul, 2006 ). It is due to the fact that CO 2 will acidify the porous medium when dissolving into formation brine according to the Equation 1 : Equation 1 C O 2 ( a q ) + H 2 O ↔ H + + H C O 3 − Dissolution of CO2 in brine...

... in naturally fractured oil reservoir wells. In this study, one vertical fracture is assumed to symmetrically intersect a wellbore. During a lost circulation drilling fluid enters the fracture and displaces formation fluid. The mechanism of lost circulation through the modeled porous medium is formulated using...

... liquid solubility gas injection method Saturation profile co 2 stability foam saturation enhanced recovery Fluid Dynamics pressure drop experiment surfactant solution interfacial tension Upstream Oil & Gas porous medium foam experiment surfactant foam film Introduction Foam...

... expression represents the resistive force for the unidirectional and incompressible flow through a porous medium, considering innertial effects (Forchheimer) and normal stress differences. (9) m 1 = μ e f ( λ ˙ ) k . k 1 ( 1 + C k ρ q μ e f ( λ...

... the radial flow from the external lateral walls of a cylinder and considers plug flow in the porous medium and external filter cake formation. A comparison of the prediction and the observed invasion in real cores obtained in exploratory wells is presented. drilling fluids and materials viscosity...

... to obtain the cake thickness and fluid velocity profiles along the well-bore. drilling fluid management & disposal drilling fluid formulation porous medium sensitivity drilling fluid chemistry flow in porous media Upstream Oil & Gas drilling fluid selection and formulation enhanced...

... into the porous medium: (28) T t r = 2 α r w λ c 0 R c 2 and the impedance slope m is given 46 by: (29) m = β ϕ c 0 ( λ ′ R c ) 2 ln ⁡ R c R ( 1 λ ′ R + e λ ′ r w E 1 ( λ ′ R...

... of 1.6 mm. The tubing is made from marprene II, a material that is resistant to water and mineral oil. Test section; the test section, which contains the porous medium, is made of stainless steel. The tube has an internal diameter of 32 mm and a wall thickness of 5 mm. The total length of the tube...

... (1) V = Δ P ⋅ A ⋅ μ e f K L ⋅ t Where ΔP is the imposed pressure differential, A and L are the area and thickness of the porous medium and μ e f is the effective viscosity of the fluid. Several researchers, present experimental results confirming the adequacy...

.... The above conditions express the fact that no polymer is present in the porous medium at time t = 0 , the conservation of polymer flux at the inlet face of the porous medium and the fact that we consider a semi-infinite porous medium. The initial and boundary condition for the probability P can...

... published by IFP and other investigators and new model experiments. These experiments consist in injecting under-saturated salt water into a porous medium made of salt. The dissolution instability, channel development and wormhole propagation are recorded by a video camera. The results predicted...

... setup particle concentration van den broek filter cake particle solid particle formation damage reduction diameter permeability decrease build-up porous medium concentration fluid dynamics flow in porous media flow-rate 4 invasion droplet concentration 300 explanation petroleum...

... fluids and materials drilling fluid selection and formulation diversion drilling operation society of petroleum engineers complex reservoir acidizing directional drilling shear rate efficiency completion installation and operations fracture drilling fluid property porous medium pseudoskin...

.... The prevalent damage mechanisms have been found to be: Inversion of wettability of the rock matrix from water-wet to oil-wet, and formation of stable emulsions inside the porous medium. Reductions to the mobility of oil between 60 % and 98 % have been found. A process, with the trade name ULTRAMIX™...

..., provides a reliable basis for quantitative predictions of formation damage. suspension fluid dynamics flow in porous media flow rate enhanced recovery probability concentration waterflooding external cake retention hydrodynamic force porous medium injection injection water experiment...

... in the ambient liquid. The model contains four parameters - or seven if certain non-linearities in the clogging process are important. We discuss the physical contents of the model and test it numerically in two dimensions. porous medium concentration global permeability probability fine mobilization...