... Due to this ability in theory, Viscous slickwater will allow to distribute biggest part of proppant in the productive zone, while in case of usage of low-viscosity linear gel based on guar, the proppant will be concentrated in the lower part of the fracture due to excessive proppant settling...

... a mixture based on a high-viscosity friction reducer (HVFR) as the hydraulic fracturing fluid. The work was carried out at wells where hydraulic fracturing based on cross-linked gel had already been performed and the wells were launched into production. The results of the work, the lessons learned...

... might appear on the rear end of the slug, and their breakthrough might reduce the oil recovery factor. In the paper we study the size of the mixing zone on the rear end of the slug and further the development of the graded viscosity banks technology (GVB or tapering) to reduce the volume of used polymer...

... & gas concentration experiment chemical flooding methods polymer chemical formulation stability surfactant surfactant formulation viscosity salinity enhanced recovery shear rate microemulsion surfactant solution surfactant concentration adsorption reservoir temperature polymer...

... conditions at 300°С and 90 bars demonstrated a high performance; the content of asphaltenes was reduced from 22% to 7 wt.%. The viscosity of crude oil was also reduced by three times. The technology for industrial-scale production of catalyst precursor was designed and the first pilot batch with a mass...

... mediums with flow rate. In addition, the of influencing factors of oil film were comprehensively evaluated, which mainly includes: flow rate, surfactant behaviors, and crude oil viscosity. The results show that, (1) regardless of the viscosity of crude oil, flow rate presents a limited contribution...

... medium flow in porous media polymer chemical flooding methods fluid dynamics concentration upstream oil & gas adsorption viscosity experiment investigation retention coefficient algorithm seright flow rate resistance factor application experimental data adsorbed polymer polymer...

... foaming and cross-linking over time. Research in a free volume The research program of gas blocking agents (GBA) in free volume included: – verification of compliance with the specifications stated by the manufacturer; – study of dynamic viscosity, density of freshly mixed solutions...

... −786.8 Deposit type Anticline Massive Reservoir type Carbonate porous Carbonate Average net pay thickness, m 6.6 10.4 Porosity coefficient, unit fraction 0.16 0.17 Initial reservoir temperature, °С 23 23 Initial formation pressure, MPa 8.75 9.12 Oil viscosity under...

... gas content, viscosity and temperature of produced fluids. Paper presents pragmatic approach and analysis of applicability of different measurement technologies: compact two-phase separator and two different multiphase metering technologies applied at oil wells of Tazovskoye field operated by LLC...

... chemistry scale inhibition hot water kharyaga field eclipse 300 wax deposition reservoir temperature conclusion flow experiment reservoir barrier part experiment oil rf movable oil permeability viscosity dual permeability injectivity case cold water injection Abstract The paper...

... of the pilot site. chemical flooding methods polymer static adsorption injection well surfactant enhanced recovery adsorption efficiency residual oil saturation surfactant-polymer flooding permeability modeling & simulation displacement viscosity boundary reservoir upstream oil...

... ball sealers depends on several parameters: the density of the balls (floating or sinking balls), the viscosity of the fluid, the pump rate, the number and quality of perforations. Technological complexity of the process makes it difficult to optimize processing through modeling. Abstract...

... in the form of an emulsion and PAM in the form of a suspension. For the prepared PAM solutions, the following tests were performed. Hydration – determination of the dynamics of changes in the effective viscosity of an aqueous solution of PAM. This characteristic was determined as follows: a given volume...

... exhibition fluid dynamics experiment setup workflow upstream oil & gas viscosity acid core analysis reservoir surveillance drilling fluids and materials production enhancement modeling simulator fracture reaction digitization technical conference spe russian petroleum technology...

... fluid proppant stabilizer viscosity enhanced recovery fracturing fluid linear gel stabilizer composition alternative source alkalinity salinity hardness produced water experiment guar-based fluid fluid system stability formulation permeability Introduction The hydraulic...

... hydrophobic unit fracturing materials upstream oil & gas concentration frequency dependence enhanced recovery fracturing fluid hydrophobically rheological property proppant polymer elevated temperature fracture macromolecule shear rate polyacrylamide viscosity relaxation time society...

... with heavier crude oil samples but gradually increased to 0.18 mN/m for the heaviest crude. In terms of IFT equilibration, the amphoteric and nano-encapsulated-ionic surfactants resulted in IFT values that gradually increased with the increase of oil viscosity. This was quite opposite for the cationic...

... the conditions of solvent/reagent injection was studied for this. reservoir characterization steam-solvent combination reservoir simulation thermal method bitumen steam-assisted gravity drainage oil production viscosity oil sand sagd upstream oil & gas steam injection enhanced recovery...

... the effectiveness of polymer flooding for a geological object of field development, to assess polymer losses during its filtration, and to clarify the economic risks associated with the project. reservoir characterization upstream oil & gas viscosity chemical flooding methods polymer enhanced...