... Abstract Low permeability rock usually holds a large amount of residual oil after flooding. The two most important mechanisms for residual oil recovery are interfacial tension (IFT) reduction and wettability alteration (WA). There is confusion around the coupled effect between the two...

.... There was no predicted leakage for CO 2 and brine into the USDW with an assumption of wellbore permeability less than 10 mD (a value greater than that of a typical wellbore cement). The worst case for leakage assessment, with less than 1 % probability, assumed that the effective permeability of the existing wellbore...

... concentration, polymer molecular weight (Mw), core length, core permeability, core heterogeneity, or whether the core was preserved, native state, cleaned of oil, or cleaned and re-saturated with oil, or cleaned, re-saturated, and aged with oil. Illite was identified as the mineral that was primarily...

... Abstract In this work, a robust and pragmatic method has been developed, validated, and applied to describe two-phase flow behaviour of a multifractured horizontal well (MFHW) in a shale gas formation. As for a fracture subsystem, its permeability modulus, non-Darcy flow coefficient...

... reservoir shale gas mudstone equation hydraulic fracturing modeling & simulation schechter conductivity showcase permeability fracture conductivity eagle ford shale mechanism tuscaloosa marine shale benchmark Introduction Unconventional reservoirs are oil and gas sources...

... between different scale pore networks related to scale-dependent phase behavior and the affects it has on production and fluid composition in the pore networks. A commercially available reservoir simulator is used with a dual porosity/permeability grid and scale-dependent fluid models to study the fluid...

...-continuous injection mode of scCO 2 flooding can maximize the process of its storage advantage. This study found that the main scCO 2 storage mechanism is mainly pore storage (structural trapping) for depleted oil reservoirs. Based on experimental results, the storage efficiency is related permeability...

...% of Canada's total oil production. However, the current recovery factor is still less than 40%. This challenge might be caused by the steam propagation/conformance issue—corroborated by the geological data showing that the ratio between the vertical permeability (k v ) and horizontal permeability (k h...

.... Conventional reservoir characterization employs core data measurements and local correlations between porosity and permeability as input data for reservoir property modeling. However, a strong correlation between porosity and permeability as well as reliable core measurements are not always available...

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... adsorption and desorption. In this model, the gas production mechanisms from stimulated reservoir volume and gas and water relative permeabilities are employed. Based on shale reservoir parameters, wellhead pressure, a choke size, a gas/liquid rate, cumulative gas/liquid production, cumulative filtration...

... tests. This validated the laboratory findings and method. In summary, this study investigates a critical completion design variable and well performance modeling input, i.e., fracture conductivity, in low-to-moderate permeability, thinly bedded sandstone reservoirs. It breaks down the fracture...

... and the shale compressibility. The impact of the shale compressibility was then incorporated in the model by developing multipliers for different s components of the compressibility, i.e., fissure permeability, matrix permeability, and hydraulic fracture conductivity as function of net stress. The model...

... the relative permeability (or saturation) curves and position to offer additional oil production. In the first attempt, the dominant parameters, including urea reaction kinetics, the stoichiometry of the decomposition process, the oil swelling effect, and the impact of IFT reduction on the relative...

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... permeability and thickness, respectively, and the injection fluid viscosity is μ expressed in conventional oilfield units. Applicable parameters like steam compressibility factor, density, and viscosity, are now included. The term μ ref is introduced to both sides of Equation 5 so...

... are represented by green lines. The fracture networks within the Bakken enhance reservoir permeability and porosity, and the fractures contribute to the initial production rates and recovery volumes for wells in Elm Coulee ( Almanza, 2011 ). Water Production Abstract Production wells within the northeast...

... fracturing in a tight carbonate formation and the ineffectiveness of the process as measured by the performance responses of the producing wells. The case study relates to a tight formation that is considered a reservoir rather than a source rock. The formation permeability is in the range of 0.1-5...

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