Maxwell fluid flow in system supplying hydrodynamically active polymer to boundary layer of streamlined object

Pogrebnyak, V. G.; Pogrebnyak, A. V.; Perkun, I. V.

doi:10.23939/mmc2021.01.058

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The latter is due to the fact that the viscosity of such a medium is different at points in space with different rates of deformation. 23 The data that characterise the influence of outflow velocity through a nozzle on effective the viscosity of PEO aqueous solutions of various concentrations for molecular weight 6•10 6 are given in Figure 2.…”

Section: сPeomentioning

confidence: 99%

The Water-Polymer Method of Hydroperforation of Oil and Gas wells

Pogrebnyak¹

2023

TPE

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The aim of the study is to develop an efficient, innovative method of perforating oil and gas well casing strings with a high-velocity stream of polymer solution that conserves resources and energy and meets the requirements for environ- mentally friendly hydrocarbon production. New knowledge about the dynamics of polymer solutions in the model conditions of flow through the nozzles of the hydro perforator, which form a high-velocity jet, became the main scientific basis for substantiating the water-polymer method of hydro perforation of oil and gas wells. The study of the reaction of polymer solutions to tension hydrodynamic influence allowed to formulate a structural concept, the "common denominator" of which is the strong deformation effect of tension hydrodynamic field on high molecular weight coils, which, according to nonequilibrium thermodynamics, should cause a kind of high elasticity. Peculiarities of hydrodynamic behavior of aqueous polymer solutions in model conditions of flow through jet-forming nozzles are studied. The possibility of transition to a highly developed state of the tangle of polyethylene oxide macromolecules in the conditions of the inlet section of the nozzle of the hydro perforator has been experimentally proved. The mechanism of perforation of oil and gas wells by a high-velocity jet of an aqueous polymer solution has been elucidated. It is proved that the mechanism of the high cutting ability of the high-velocity jet of aqueous polymer solution is the destructive effect of the dynamic pressure of water-polymer jet "reinforced" by highly developed macromolecular chains in the inlet nozzles of the hydro perforator nozzles under the action of tensile leakage. Experimental and industrial testing of the method of perforation of wells by a high-speed jet of an aqueous solution of polyethylene oxide confirmed the practical and economic feasibility of its use.

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Section: сPeomentioning

confidence: 99%

The Water-Polymer Method of Hydroperforation of Oil and Gas wells

Pogrebnyak¹

2023

TPE

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“…For a Newtonian fluid, it always coincides with the shear viscosity, whereas the effective viscosity of a non-Newtonian medium depends on the flow regimes and is an average characteristic. The latter is due to the fact that the viscosity of such a medium is different at points in space with different rates of deformation [39].…”

Section: Perforation Of Oil and Gas Wells By A High-velocity Jet Of P...mentioning

confidence: 99%

Solutions of Polymers in the Oil and Gas Technologies

Pogrebnyak¹,

Chudyk²,

Perkun³

2022

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There has been carried out a complex study of polymer solution reaction under hydrodynamic effect. Integrated approach turned out to be a necessary condition for successful solving of the set tasks of scientific and technical character (from fundamental studies to concrete technological process). This allowed to formulate a new structural concept with a “common denominator” such as strong deformation effect on the part of a hydrodynamic field on macromolecules that immediately generates the so called rubber-like high elasticity. The technologies of production oil and gas is based on utilization of rubberlike properties of a polymer solution that arise under definite conditions while going through porous media, nozzles and slotes. There have been obtained eco-technological criteria and practical recommendations as to practical implementation of technologies of production oil and gas.

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Maxwell fluid flow in system supplying hydrodynamically active polymer to boundary layer of streamlined object

Cited by 2 publications

References 6 publications

The Water-Polymer Method of Hydroperforation of Oil and Gas wells

The Water-Polymer Method of Hydroperforation of Oil and Gas wells

Solutions of Polymers in the Oil and Gas Technologies

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