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Influence of Polymer Viscoelasticity on Microscopic Remaining Oil Production. [PDF]
Polymers (Basel), 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
Yan Y, Wang L, Sang G, Han X.
europepmc +5 more sources
Remaining oil distribution characteristics in an oil reservoir with ultra-high water-cut
Energy GeoscienceAn accurate mapping and understanding of remaining oil distribution is very important for water control and stabilize oil production of mature oilfields in ultra-high water-cut stage. Currently, the Tuo-21 Fault Block of the Shengtuo Oilfield has entered
Hongmin Yu +6 more
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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 +6 more
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Micro-distribution and mechanical characteristics analysis of remaining oil
Petroleum, 2017 As the water drive reservoir enters extra high water cut stage (greater than 80%), remaining oil distribution becomes increasingly dispersed. Research on micro residual oil in pore appears particularly important for reservoir development at extra high ...
Hongxia Sun, Yujie Zhao, Jun Yao
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Analysis of the Distribution Pattern of Remaining Oil and Development Potential after Weak Gel Flooding in the Offshore LD Oilfield [PDF]
GelsThe LD oilfield is one of the representative offshore oilfields. After weak gel flooding, the recovery rate is significantly improved. However, the oilfield is then in a medium- to high-water content stage, presenting a complex distribution of the ...
Lizhen Ge +10 more
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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 +5 more
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Study on the Effect of Threshold Pressure Gradient on Remaining Oil Distribution in Heavy Oil Reservoirs. [PDF]
ACS Omega, 2022 Due to the spatial network structure, heavy oil has a high threshold pressure gradient when it flows through porous media, and the threshold pressure gradient plays a crucial role in the distribution of remaining oil. In previous study, the common methods to measure the threshold pressure gradient include the microflow-established differential pressure
Ke W, Liu Y, Zhao X, Yu G, Wang J.
europepmc +5 more sources
Feasibility study on further enhanced oil recovery by ISC of remaining oil after polymer flooding. [PDF]
RSC Adv, 2022 The residual oil after polymer flooding in China is highly dispersed.study on further enhanced oil recovery by ISC of remaining oil after polymer flooding.
Zhao F, Zhu G, Li G, Jiang Y, Liu L.
europepmc +3 more sources
Petroleum Exploration and Development, 2022 To get a deeper understanding on the formation mechanisms and distribution laws of remaining oil during water flooding, and enhanced oil recovery (EOR) mechanisms by reversing water injection after water flooding, 3D visualization models of fractured ...
Jing WANG +6 more
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Research on Remaining Oil Characterization in Superheavy Oil Reservoir by Microgravity Exploration
Geofluids, 2022 Some physical processes such as oil and gas development, metal deposit collection, and groundwater resource migration can cause density changes, for which microgravity monitoring is the most intuitive method to monitor the density change process.
Qijun Lv +9 more
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