Results 1 to 10 of about 30,413 (251)

Influence of Polymer Viscoelasticity on Microscopic Remaining Oil Production [PDF]

Polymers, 2022
To investigate the impact of polymer viscoelasticity on microscopic remaining oil production, this study used microscopic oil displacement visualisation technology, numerical simulations in PolyFlow software, and core seepage experiments to study the viscoelasticity of polymers and their elastic effects in porous media. We analysed the forces affecting
Yiqun Yan, Lihui Wang
exaly   +6 more sources

Effects of microscopic pore structure heterogeneity on the distribution and morphology of remaining oil

Petroleum Exploration and Development, 2018
Waterflooding experiments were performed using Micro-CT on four cores of different pore structures from Donghe sandstone reservoirs in the Tarim Basin. The water, oil and grains were accurately separated by the advanced image processing technology, the ...
Junjian LI, Yang LIU, Yajun GAO, Baoyang CHENG, Fanle MENG, Huaimin XU   +5 more
doaj   +5 more sources

Pore-Scale Investigation of Microscopic Remaining Oil Variation Characteristic in Different Flow Rates Using Micro-CT [PDF]

Energies, 2021
The main means of secondary oil recovery is water flooding, which has been widely used in various oilfields. Different flow rates have a great impact on the recovery ratio and the occurrence of remaining oil.
Baoyang Cheng, Junjian Li, Shuai Jiang, Chunhua Lu, Hang Su, Fuwei Yu, Hanqiao Jiang   +6 more
doaj   +5 more sources

Study on the Impact of Microscopic Pore Structure Characteristics in Tight Sandstone on Microscopic Remaining Oil after Polymer Flooding [PDF]

Polymers
As a non-renewable resource, oil faces increasing demand, and the remaining oil recovery rates in existing oil fields still require improvement. The primary objective of this study is to investigate the impact of pore structure parameters on the distribution and recovery of residual oil after polymer flooding by constructing a digital pore network ...
Xianda Sun, Huili Zhang, Xudong Qin
exaly   +6 more sources

Microscopic Remaining Oil Classification Method and Utilization Based on Kinetic Mechanism

Energies
In reality, the remaining oil in the ultra-high water cut period is highly dispersed, so a thorough investigation is required to understand the microscopic remaining oil.
Yuhang He, Xianbao Zheng, Jiayi Wu, Zhiqiang Wang, Jiawen Wu, Qingyu Wang, Wenbo Gong, Xuecong Gai   +7 more
doaj   +5 more sources

Quantitative Analysis Method of Conversion of Type of Microscopic Remaining Oil Based on CT Technology

Energies
The distribution and mutual conversion of remaining oil during the process of oilfield development constitute an important basis for guiding the exploitation of remaining oil potential.
Chun Feng, Linghui Sun, Zhengming Yang
doaj   +5 more sources

Study on the Mechanisms of Microscopic Remaining Oil Flow During Cyclic Water Flooding [PDF]

ACS Omega
Water flooding remains the primary development method for oil fields both domestically and internationally. Currently, continued water flooding is the predominant approach. Due to reservoir heterogeneity and developed fractures, the swept volume of water flooding gradually becomes fixed (injected water primarily flows through zones with good reservoir ...
Shiying Di, Shou Ma, Yuhua Wei, Hongwei Jing   +3 more
doaj   +4 more sources

Experimental study on the mass transfer and microscopic distribution characteristics of remaining oil and CO2 during water-miscible CO2 flooding

Journal of CO2 Utilization
Accurate understanding and quantitative characterization of the microscopic distribution and mobilization mechanisms of remaining oil are crucial for further enhancing oil recovery during CO2 flooding.
Lian Li, Yong Kang, Feng Liu, Yi Hu, Yong Huang, Siqi Wu   +5 more
doaj   +4 more sources

Quantitative Characterization Method of Microscopic Remaining Oil Distribution and Its Application in Laboratory Displacement Experiments [PDF]

Journal of Petroleum Science and Technology, 2021
The study of microscopic remaining oil is of great significance for the effective development of reservoirs after water flooding. An observation and quantitative characterization method of occurrence states of remaining oil on pore scale is proposed in ...
Tao Jiang, Zian Li, Xianda Sun, Yingjie Liang   +3 more
doaj   +2 more sources

Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil

Petroleum Exploration and Development, 2022
To clarify microscopic mechanisms of residual oil displacement by hydraulic pulsation wave, microscopic visualization experiments of hydraulic pulsation wave driving residual oil were carried out by using the microscopic visualization device of pulsating
Feipeng WU, Na LI, Wei YANG, Jiahao CHEN, Bujie DING, Lei XIA, Jing LIU, Cong WANG, Lushan WANG   +8 more
doaj   +3 more sources