The impact of silica nanoparticles on the performance of polymer solution in presence of salts in polymer flooding for heavy oil recovery

Fuel ◽  
2014 ◽  
Vol 123 ◽  
pp. 123-132 ◽  
Author(s):  
Ali Maghzi ◽  
Riyaz Kharrat ◽  
Ali Mohebbi ◽  
Mohammad Hossein Ghazanfari
Keyword(s):  
Polymer Solution ◽  
Silica Nanoparticles ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Polymer Flooding ◽  
Heavy Oil Recovery ◽  
The Impact

Characterizing the Role of Clay and Silica Nanoparticles in Enhanced Heavy Oil Recovery During Polymer Flooding

2016 ◽  
Vol 41 (7) ◽  
pp. 2731-2750 ◽  
Author(s):  
Seyyed Shahram Khalilinezhad ◽  
Goshtasp Cheraghian ◽  
Mohammad Saber Karambeigi ◽  
Hamid Tabatabaee ◽  
Emad Roayaei
Keyword(s):  
Silica Nanoparticles ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Polymer Flooding ◽  
Heavy Oil Recovery

Improving heavy oil recovery in the polymer flooding process by utilizing hydrophilic silica nanoparticles

2017 ◽  
pp. 1-10 ◽  
Author(s):  
Seyyed Shahram Khalilinezhad ◽  
Goshtasp Cheraghian ◽  
Emad Roayaei ◽  
Hamid Tabatabaee ◽  
Mohammad Saber Karambeigi
Keyword(s):  
Silica Nanoparticles ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Polymer Flooding ◽  
Heavy Oil Recovery

scholarly journals Effect of Non-Newtonian Flow on Polymer Flooding in Heavy Oil Reservoirs

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1225 ◽  
Author(s):  
Xiankang Xin ◽  
Gaoming Yu ◽  
Zhangxin Chen ◽  
Keliu Wu ◽  
Xiaohu Dong ◽  
...  
Keyword(s):  
Porous Media ◽  
Polymer Solution ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Flow Behavior ◽  
Polymer Flooding ◽  
Oil Reservoirs ◽  
Flow In Porous Media ◽  
Newtonian Flow ◽  
Heavy Oil Reservoirs

The flow of polymer solution and heavy oil in porous media is critical for polymer flooding in heavy oil reservoirs because it significantly determines the polymer enhanced oil recovery (EOR) and polymer flooding efficiency in heavy oil reservoirs. In this paper, physical experiments and numerical simulations were both applied to investigate the flow of partially hydrolyzed polyacrylamide (HPAM) solution and heavy oil, and their effects on polymer flooding in heavy oil reservoirs. First, physical experiments determined the rheology of the polymer solution and heavy oil and their flow in porous media. Then, a new mathematical model was proposed, and an in-house three-dimensional (3D) two-phase polymer flooding simulator was designed considering the non-Newtonian flow. The designed simulator was validated by comparing its results with those obtained from commercial software and typical polymer flooding experiments. The developed simulator was further applied to investigate the non-Newtonian flow in polymer flooding. The experimental results demonstrated that the flow behavior index of the polymer solution is 0.3655, showing a shear thinning; and heavy oil is a type of Bingham fluid that overcomes a threshold pressure gradient (TPG) to flow in porous media. Furthermore, the validation of the designed simulator was confirmed to possess high accuracy and reliability. According to its simulation results, the decreases of 1.66% and 2.49% in oil recovery are caused by the difference between 0.18 and 1 in the polymer solution flow behavior indexes of the pure polymer flooding (PPF) and typical polymer flooding (TPF), respectively. Moreover, for heavy oil, considering a TPG of 20 times greater than its original value, the oil recoveries of PPF and TPF are reduced by 0.01% and 5.77%, respectively. Furthermore, the combined effect of shear thinning and a threshold pressure gradient results in a greater decrease in oil recovery, with 1.74% and 8.35% for PPF and TPF, respectively. Thus, the non-Newtonian flow has a hugely adverse impact on the performance of polymer flooding in heavy oil reservoirs.

Enhancing Heavy-Oil-Recovery Efficiency by Combining Low-Salinity-Water and Polymer Flooding

SPE Journal ◽  
2020 ◽  
pp. 1-17
Author(s):  
Yang Zhao ◽  
Shize Yin ◽  
Randall S. Seright ◽  
Samson Ning ◽  
Yin Zhang ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
High Salinity ◽  
Polymer Flooding ◽  
Heavy Oil Recovery ◽  
Sweep Efficiency ◽  
Low Salinity ◽  
Low Salinity Water ◽  
Salinity Water ◽  
Increased Oil Recovery

Summary Combining low-salinity-water (LSW) and polymer flooding was proposed to unlock the tremendous heavy-oil resources on the Alaska North Slope (ANS). The synergy of LSW and polymer flooding was demonstrated through coreflooding experiments at various conditions. The results indicate that the high-salinity polymer (HSP) (salinity = 27,500 ppm) requires nearly two-thirds more polymer than the low-salinity polymer (LSP) (salinity = 2,500 ppm) to achieve the target viscosity at the condition of this study. Additional oil was recovered from LSW flooding after extensive high-salinity-water (HSW) flooding [3 to 9% of original oil in place (OOIP)]. LSW flooding performed in secondary mode achieved higher recovery than that in tertiary mode. Also, the occurrence of water breakthrough can be delayed in the LSW flooding compared with the HSW flooding. Strikingly, after extensive LSW flooding and HSP flooding, incremental oil recovery (approximately 8% of OOIP) was still achieved by LSP flooding with the same viscosity as the HSP. The pH increase of the effluent during LSW/LSP flooding was significantly greater than that during HSW/HSP flooding, indicating the presence of the low-salinity effect (LSE). The residual-oil-saturation (Sor) reduction induced by the LSE in the area unswept during the LSW flooding (mainly smaller pores) would contribute to the increased oil recovery. LSP flooding performed directly after waterflooding recovered more incremental oil (approximately 10% of OOIP) compared with HSP flooding performed in the same scheme. Apart from the improved sweep efficiency by polymer, the low-salinity-induced Sor reduction also would contribute to the increased oil recovery by the LSP. A nearly 2-year pilot test in the Milne Point Field on the ANS has shown impressive success of the proposed hybrid enhanced-oil-recovery (EOR) process: water-cut reduction (70 to less than 15%), increasing oil rate, and no polymer breakthrough so far. This work has demonstrated the remarkable economical and technical benefits of combining LSW and polymer flooding in enhancing heavy-oil recovery.

A comparative study of the mechanism and performance of surfactant- and alkali-polymer flooding in heavy-oil recovery

2020 ◽  
Vol 219 ◽  
pp. 115603 ◽  
Author(s):  
MingChen Ding ◽  
Yefei Wang ◽  
Fuqing Yuan ◽  
Hailong Zhao ◽  
Zongyang Li
Keyword(s):  
Comparative Study ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Polymer Flooding ◽  
Heavy Oil Recovery ◽  
And Performance

Experimental investigation of heavy oil recovery by continuous/WAG injection of CO2 saturated with silica nanoparticles

2015 ◽  
Vol 9 (2) ◽  
pp. 169 ◽  
Author(s):  
Saeed Jafari ◽  
Ayub Khezrnejad ◽  
Omid Shahrokhi ◽  
Mohammad Hossein Ghazanfari ◽  
Manouchehr Vossoughi
Keyword(s):  
Experimental Investigation ◽  
Silica Nanoparticles ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Heavy Oil Recovery ◽  
Wag Injection

Dominant Scaling Groups of Polymer Flooding for Enhanced Heavy Oil Recovery

2012 ◽  
Vol 52 (2) ◽  
pp. 911-921 ◽  
Author(s):  
Ziqiang Guo ◽  
Mingzhe Dong ◽  
Zhangxin Chen ◽  
Jun Yao
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Polymer Flooding ◽  
Heavy Oil Recovery
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