Low-Temperature Oxidation of Oil Components in an Air Injection Process for Improved Oil Recovery

2011 ◽  
Vol 25 (10) ◽  
pp. 4299-4304 ◽  
Author(s):  
Baolun Niu ◽  
Shaoran Ren ◽  
Yinhua Liu ◽  
Dezhi Wang ◽  
Lingzhi Tang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oil Recovery ◽  
Air Injection ◽  
Low Temperature Oxidation ◽  
Improved Oil Recovery ◽  
Temperature Oxidation ◽  
Injection Process ◽  
Oil Components

High-Pressure Air Injection for Improved Oil Recovery: Low-Temperature Oxidation Models and Thermal Effect

2013 ◽  
Vol 27 (2) ◽  
pp. 780-786 ◽  
Author(s):  
Zhenya Chen ◽  
Lei Wang ◽  
Qiong Duan ◽  
Liang Zhang ◽  
Shaoran Ren
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Thermal Effect ◽  
Oil Recovery ◽  
Air Injection ◽  
Low Temperature Oxidation ◽  
Improved Oil Recovery ◽  
Temperature Oxidation

Effect of low-temperature oxidation of light oil on oil recovery during high pressure air injection

2018 ◽  
Vol 36 (13) ◽  
pp. 937-943 ◽  
Author(s):  
Wan-Fen Pu ◽  
Shuai Zhao ◽  
Jing-Jun Pan ◽  
Zhi-Zhong Lin ◽  
Ru-Yan Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Oil Recovery ◽  
Air Injection ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Light Oil

Reservoir Simulation Study on Air-Foam Flooding to Enhance Oil Recovery in Waterflooding Sandstone Reservoir

2014 ◽  
Vol 962-965 ◽  
pp. 461-464
Author(s):  
Ping Yuan
Keyword(s):  
Low Temperature ◽  
Oil Recovery ◽  
Water Injection ◽  
Steam Injection ◽  
Utilization Rate ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Sandstone Reservoir ◽  
Foam Flooding ◽  
Enhance Oil Recovery

In the later waterflooding sandstone reservoir, there are many serious development contradictions, especially in the aspects of water breakthrough and heterogeneous development. Based on the laboratory experiments, numerical simulation research on historical match of the low temperature oxidation kinetics model, the injection mode, foaming agent concentration, gas to liquid ratio, steam injection rate and other key parameters of air-foam flooding were carried out. The results show that, air foam flooding technology integrated comprehensive effect of low-temperature oxidation, air flooding and foam flooding, which enhance oil recovery nearly 8% by block the thief layer effectively and improving the swept volume. Air-foam flooding technology also can reduce the amount of water injection and water production, which improved the utilization rate of water resources and reduced output liquid processing cost. This technology shows its broad prospect of application and can provide reference for similar reservoirs.

Investigation on the low temperature oxidation of light oil for safely enhancing oil recovery at high temperatures and pressures

Energy ◽  
2020 ◽  
Vol 200 ◽  
pp. 117546
Author(s):  
Pengliang Li ◽  
Zhenyi Liu ◽  
Mingzhi Li ◽  
Yao Zhao ◽  
Xuan Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Temperatures ◽  
Oil Recovery ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Light Oil

scholarly journals Catalytic Effect of Cobalt Additive on the Low Temperature Oxidation Characteristics of Changqing Tight Oil and Its SARA Fractions

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2848 ◽  
Author(s):  
Tengfei Wang ◽  
Jiexiang Wang
Keyword(s):  
Low Temperature ◽  
Oil Recovery ◽  
Catalytic Effect ◽  
Addition Reaction ◽  
Tight Oil ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Bond Scission ◽  
Sara Fractions ◽  
Oxygen Addition

Air flooding is a potential enhanced oil recovery (EOR) method to economically and efficiently develop a tight oil reservoir due to its sufficient gas source and low operational costs, during which low temperature oxidation (LTO) is the key to ensuring the success of air flooding. In addition to inefficiency of conventional LTO, air flooding has seen its limited applications due to the prolonged reaction time and safety constraints. In this paper, a novel air injection technique based on the catalyst-activated low temperature oxidation (CLTO) is developed to improve the operational safety together with its oil recovery in tight oil reservoirs. Experimentally, static oxidation experiments are conducted to examine the influence of the catalyst on the LTO reaction kinetics of Changqing tight oil and its fractions. The catalytic oxidation characteristics are identified by applying a thermogravimetric analyzer coupled with Fourier transform infrared spectrometer (TG-FTIR) with respect to tight oil and its SARA (i.e., saturates, aromatics, resins, and asphaltenes) fractions. Accordingly, the catalyst can obviously decrease the LTO reaction activation energy of the Changqing tight oil and its SARA fraction. Cobalt additive can change the LTO reaction pathways of the SARA fractions, i.e., promoting the formation of hydroxyl-containing oxides and CO2 from the oxidation of saturates, aromatics and resins, while inhibiting the formation of ethers from the oxidation of aromatics and resins. The LTO of each SARA fraction contains both oxygen addition reaction and bond scission reaction that can be effectively promoted with the cobalt additive. The catalytic effect on the bond scission reaction is continuously enhanced and becomes gradually stronger than that on the oxygen addition reaction as the reaction proceeds.

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