The Function of Polymer Solution Adding with Viscosity Stabilizer and The Evaluation of Its Effectiveness of Oil Displacement in Daqing Oilfield

2011 ◽  
Author(s):  
Shuzhen Xin ◽  
Qingjie Zhang ◽  
Jianguang Wei ◽  
Ying Chen ◽  
Rongjiu Wang ◽  
...  
Keyword(s):  
Polymer Solution ◽  
Oil Displacement

Results of Bench-Scale Oil Displacement of Novel Polymer Solution in Daqing Oilfield

2009 ◽  
Vol 27 (12) ◽  
pp. 1330-1337
Author(s):  
T. Shouceng ◽  
L. Gensheng ◽  
H. Zhongwei ◽  
Z. Yufeng ◽  
Y. Shen
Keyword(s):  
Polymer Solution ◽  
Bench Scale ◽  
Oil Displacement

Evaluation of New Active Polymer Systems

2013 ◽  
Vol 848 ◽  
pp. 7-10
Author(s):  
Jia Bin Tang ◽  
Wen Xiang Wu ◽  
Zhu Xin Zhang
Keyword(s):  
Interfacial Tension ◽  
Polymer Solution ◽  
Simulation Experiment ◽  
Physical Simulation ◽  
Low Permeability ◽  
Displacement Effect ◽  
Polymer Systems ◽  
Oil Displacement ◽  
Low Permeability Reservoirs ◽  
Better Than

Using the physical simulation experiment, for the new active polymers, common carve and polymer 25 million to act on interfacial tension test, the results indicate, interfacial tension for common carve and polymer 25 million is about 10 mn/m. and interfacial tension for the active polymer is about 1 mn/m. Rheology showed that the viscosity and elasticity of active polymer solution were higher than 25 million polymer.In liquidity experiment, active polymer solution has the better liquidity than in 25 million polymers in the low permeable formation,the flooding effect of active polymer is better than 25 million polymer and common carve polymer.the better injection and better oil displacement features of active polymer are suitable for low permeability reservoirs to improve oil displacement effect.

scholarly journals The Peculiarities of Oil Displacement in the Process of Oscillating Injection of Polymer Solution into the Bed with Layered Heterogeneity

2019 ◽  
pp. 42-50
Author(s):  
V. G. Pogrebnyak ◽  
І. V. Perkun
Keyword(s):  
Polymer Solution ◽  
Polymer Solutions ◽  
Dissipative Function ◽  
Filtration Flow ◽  
Elastic Deformations ◽  
Porous Bed ◽  
Water Solutions ◽  
Oil Displacement ◽  
Displacement Mode ◽  
Hydrodynamic Field

The authors study the filtration flow of polyethylene oxide (PEO) water solutions of molecular weights 4∙106 and 6∙106 within the concentration range from 0 to 0.05% when exposed to an oscillating hydrodynamic field. Photographs characterizing the displacement of oil (with a viscosity of 10 to 50 mPa. s) with PEO water solutions from model porous formations with layered heterogeneity have been obtained. They have made it possible to specify the effectiveness of different oil displacement modes.  It is shown that pumping a polymer solution into porous heterogeneous strata, while exposing it to oscillating hydrodynamic field, proved to yield a higher oil displacement ratio, as compared with a stationary oil displacement mode. The authors find out the conditions providing the positive influence on elastic deformations effects in the process of enhanced oil recovery by using polymer solutions. If elastic deformations take place, the filtration flow of polymer solutions should be carried out in the oscillating mode, whereas the frequency of the oscillating effect on the filtration flow should correspond to the dissipative function maximum. The stated results of the polymer solution flow research, under model conditions of a porous bed, have confirmed the nonlinearity mechanism of the polymer solutions filtration flow. In essence, the molecular and macromolecular non-linearity mechanism of the polymer solutions filtration flow means that in a porous medium under the influence of quasi-regular longitudinal velocity gradients, there arise self-sustained oscillations of reversible macromolecular deployment; the deployed macromolecules, in turn, influence the structure of the filtration flow, both on the molecular and macromolecular levels. Deformation oscillations of macromolecules and dissolubility of dynamic macromolecular structures formed under the influence of tensile currents result in the energy dissipation increase and the filtration flow nonlinearity. The nonlinearity of polymer solutions filtration flow ensures the alignment of the frontal advance of the polymer solutions within a porous bed with a layered heterogeneity and, consequently, higher oil displacement efficiency.

A Light Scattering Theory for Filled Diluted Polymer Solution under Flow

1995 ◽  
Vol 5 (7) ◽  
pp. 1017-1033 ◽  
Author(s):  
S. A. Patlazhan ◽  
P. Navard
Keyword(s):  
Light Scattering ◽  
Polymer Solution ◽  
Scattering Theory
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