Heavy Oil Characterization and Enhanced Oil Recovery: Challenges and Opportunities

2021 ◽  
pp. 75-90
Author(s):  
Sujit Mitra ◽  
Sudheer Kumar Singh ◽  
Shikha Trivedi ◽  
Omkar Nath Gyani
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Challenges And Opportunities ◽  
Oil Characterization

Effect of pressure variation on polymer flooding

2021 ◽  
Author(s):  
Ahmad Ali Manzoor
Keyword(s):  
Polymer Solution ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Constant Pressure ◽  
Maximum Pressure ◽  
Core Flooding ◽  
Sweep Efficiency ◽  
Black Oil Model ◽  
Original Oil In Place

Chemical-based enhanced oil recovery (EOR) techniques utilize the injection of chemicals, such as solutions of polymers, alkali, and surfactants, into oil reservoirs for incremental recovery. The injection of a polymer increases the viscosity of the injected fluid and alters the water-to-oil mobility ratio which in turn improves the volumetric sweep efficiency. This research study aims to investigate strategies that would help intensify oil recovery with the polymer solution injection. For that purpose, we utilize a lab-scale, cylindrical heavy oil reservoir model. Furthermore, a dynamic mathematical black oil model is developed based on cylindrical physical model of homogeneous porous medium. The experiments are carried out by injecting classic and novel partially hydrolyzed polyacrylamide solutions (concentration: 0.1-0.5 wt %) with 1 wt % brine into the reservoir at pressures in the range, 1.03-3.44 MPa for enhanced oil recovery. The concentration of the polymer solution remains constant throughout the core flooding experiment and is varied for other subsequent experimental setup. Periodic pressure variations between 2.41 and 3.44 MPa during injection are found to increase the heavy oil recovery by 80% original-oil-in-place (OOIP). This improvement is approximately 100% more than that with constant pressure injection at the maximum pressure of 3.44 MPa. The experimental oil recoveries are in fair agreement with the model calculated oil production with a RMS% error in the range of 5-10% at a maximum constant pressure of 3.44 MPa.

Oxidation of Heavy Oil Using Oil-Dispersed Transition Metal Acetylacetonate Catalysts for Enhanced Oil Recovery

2021 ◽  
Author(s):  
Meisam Babapour Golafshani ◽  
Mikhail A. Varfolomeev ◽  
Seyedsaeed Mehrabi-Kalajahi ◽  
Nikolay O. Rodionov ◽  
Pooya Tahay ◽  
...  
Keyword(s):  
Transition Metal ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Metal Acetylacetonate

Investigation into the properties of water-in-heavy oil emulsion and its role in enhanced oil recovery during water flooding

2019 ◽  
Vol 177 ◽  
pp. 798-807 ◽  
Author(s):  
Shishi Pang ◽  
Wanfen Pu ◽  
Jianyong Xie ◽  
Yanjie Chu ◽  
Chongyang Wang ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Water Flooding ◽  
Oil Emulsion

Enhanced oil recovery techniques for heavy oil and oilsands reservoirs after steam injection

2019 ◽  
Vol 239 ◽  
pp. 1190-1211 ◽  
Author(s):  
Xiaohu Dong ◽  
Huiqing Liu ◽  
Zhangxin Chen ◽  
Keliu Wu ◽  
Ning Lu ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Steam Injection ◽  
Recovery Techniques

Improving heavy oil oxidation performance by oil-dispersed CoFe2O4 nanoparticles in In-situ combustion process for enhanced oil recovery

Fuel ◽  
2021 ◽  
Vol 285 ◽  
pp. 119216
Author(s):  
Seyedsaeed Mehrabi-Kalajahi ◽  
Mikhail A. Varfolomeev ◽  
Chengdong Yuan ◽  
Almaz L. Zinnatullin ◽  
Nikolay O. Rodionov ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Combustion Process ◽  
Oil Oxidation ◽  
Cofe2o4 Nanoparticles ◽  
In Situ Combustion ◽  
Oxidation Performance
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