Suspension of surface-modified nano-SiO 2 in partially hydrolyzed aqueous solution of polyacrylamide for enhanced oil recovery

2017 ◽  
Vol 524 ◽  
pp. 169-177 ◽  
Author(s):  
Chao Zheng ◽  
Yamin Cheng ◽  
Qingbo Wei ◽  
Xiaohong Li ◽  
Zhijun Zhang
Keyword(s):  
Aqueous Solution ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Surface Modified

Aqueous Solution of Ketone Solvent for Enhanced Oil Recovery in Tight Reservoirs

2020 ◽  
Author(s):  
Mingyuan Wang ◽  
Gayan A. Abeykoon ◽  
Francisco J. Argüelles-Vivas ◽  
Ryosuke Okuno
Keyword(s):  
Aqueous Solution ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Tight Reservoirs

scholarly journals Hyper-branched structure—an active carrier for copolymer with surface activity, anti-polyelectrolyte effect and hydrophobic association in enhanced oil recovery

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16406-16417
Author(s):  
Qi Wu ◽  
Shaohua Gou ◽  
Jinglun Huang ◽  
Guijuan Fan ◽  
Shiwei Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Radical Polymerization ◽  
Enhanced Oil Recovery ◽  
Surface Activity ◽  
Oil Recovery ◽  
Free Radical Polymerization ◽  
Hydrophobic Association ◽  
Polyelectrolyte Effect ◽  
Branched Structure

Herein, a hyper-branched polymer h-PMAD with, simultaneously, surface activity, an anti-polyelectrolyte effect and a hydrophobic association was prepared via aqueous solution free radical polymerization, and characterized by IR, NMR, TG–DTG and SEM.

Preculaatities of evaluation of the effectiveness of flow deflection technologies

2018 ◽  
pp. 93-101
Author(s):  
A. A. Kazakov ◽  
V. V. Chelepov ◽  
R. G. Ramazanov
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Production Well ◽  
Oil Companies ◽  
Efficiency Calculation ◽  
Petroleum Companies ◽  
Flow Deflection ◽  
Recovery Methods

The features of evaluation of the effectiveness of flow deflection technologies of enhanced oil recovery methods. It is shown that the effect of zeroing component intensification of fluid withdrawal leads to an overestimation of the effect of flow deflection technology (PRP). Used in oil companies practice PRP efficiency calculation, which consists in calculating the effect on each production well responsive to subsequent summation effects, leads to the selective taking into account only the positive components of PRP effect. Negative constituents — not taken into account and it brings overestimate over to overstating of efficiency. On actual examples the groundless overstating and understating of efficiency is shown overestimate at calculations on applied in petroleum companies by a calculation.

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