... treatment model and economic model. New numerical halite deposition model for brine flow in porous media is developed based on Darcy's law and equation of halite precipitation dynamics from formation water taking into account the fresh water treatments, solubility of descipitated halite in the fresh water...

... in oil; salt precipitation when the highly mineralized front of the injected water breaks through toward production well. These effects are most intense in the near-well zones of producing wells and are initiated by technogenic changes in thermobaric conditions and the release of dissolved gas from oil...

... Voronoi grid in the framework of developed approach. The developed algorithms were tested by real data. It is demonstrated that precipitation resulting from secondary and tertiary reactions can have a determining effect on the result of acid treatment. The article presents the results of simulation acid...

... arrows). Particularly intensive formation of such droplets occurs when the pressure drops below 25 MPa. The particles precipitation was studied by the following scheme: The sample was stabilized at the initial thermobaric conditions. The data recording parameters were set: the data on the unit...

... resins and raffinate of resins. The inhibition activity of HMC OBs is comparable to that of nonylphenol (4 g/L). The results are promising in the stimulation of oil production using asphaltene precipitation inhibitors. In addition, new data provide opportunity for the prediction of oil stability...

... and analyzing to representation model setting up are putforwarded and used to study those problems comprehensively. In the CO 2 displacement process, asphaltene, resin, and paraffin are easily to be separated out from crude oil. Meanwhile, pore throats in rock formation can be blocked by the precipitate...

... compositions excluding the rest of provided testing acids, saving a considerable amount of time and money. Reservoir Characterization acidizing porous medium secondary precipitation enhanced recovery Upstream Oil & Gas composition acid composition Artificial Intelligence Fluid Dynamics...

... Abstract During reactive flows in porous media with precipitation of a solid chemical reaction product, the permeability reduction occurs. The mathematical model for reactive flow in porous media formulated contains two empirical parameters – the kinetics rate coefficient, determining...

... to the reservoir (as a result of the acid treatment, alkali treatment, hydraulic fracturing, killing operations on production and injection wells, evaluation of the depth of penetration of drilling mud filtrate into the formation, precipitation of resins, asphaltenes and paraffin in the bottomhole formation zone...

... of producing wells but also in the near-wellbore zone of the reservoir. Presently the main preventive techniques against scaling or salt precipitation in wells include cyclic adding of chemicals through the annulus, continuous batching of chemicals with dosing pumps into the annulus or through a capillary...

...; – reduced corrosive activity of acids; – lower risks of iron compounds precipitation. Physical modeling of acid treatment Physical modeling of acid treatment was performed on individual core plugs from vuggy and fractured carbonate reservoirs of D 1 II, D 1 I, D 1 A and D 3 src formations from...

... recommendation criteria filtration system regeneration unit analytic hierarchy process precipitation ahp lean rich exchanger society of petroleum engineers remediation of hydrates operational problem asphaltene inhibition asphaltene remediation judgment wax remediation scale remediation oilfield...

... inhibition spe 135127 scale remediation scale inhibitor formulation cold weather sandra linares-samaniego concentration precipitation application inhibitor concentration wax remediation wax inhibition scale deposition composition oilfield chemistry production chemistry scale formation...

... precipitation deposition economic strategy hydrate inhibition scale inhibitor wax inhibition scale deposition scale remediation scale deposition management calcium ion voloshin paraffin remediation upstream oil & gas Introduction The problem of scaling is a constant companion of oil...

... government hydrate inhibition asphaltene inhibition precipitation yuganskneftega Wellhead composition Hydrate Remediation Production Chemistry Upstream Oil & Gas modeling scale inhibitor calcite injection application production well society of petroleum engineers Voloshin international...