Facile preparation of attapulgite nanofiber membrane for efficient separation of high-viscosity oil-in-water emulsions

2021 ◽  
pp. 127322
Author(s):  
Qing Sun ◽  
Wenjia Luo ◽  
Qi Zhong ◽  
Bin Xiang ◽  
Peng Mu ◽  
...  
Keyword(s):  
High Viscosity ◽  
Nanofiber Membrane ◽  
Efficient Separation ◽  
Oil In Water ◽  
Facile Preparation ◽  
High Viscosity Oil

Facile preparation of bridged silsesquioxane microspheres with interconnected multi-cavities and open holes

RSC Advances ◽  
2016 ◽  
Vol 6 (26) ◽  
pp. 21571-21576 ◽  
Author(s):  
Zhen Wang ◽  
Zhenchao Qian ◽  
Yuan Cao ◽  
Xiangzhi Zhang ◽  
Renzhong Tai ◽  
...  
Keyword(s):  
Water Emulsion ◽  
Oil In Water ◽  
Bridged Silsesquioxane ◽  
Facile Preparation ◽  
Oil In Water Emulsion

Bridged silsesquioxane (BSQ) microspheres featured with interconnected multi-cavities and open holes are facilely prepared from water-in-oil-in-water emulsion.

Two-Phase Filtration Model for Nonlinear Viscoplastic Oil and Hard Water Drive

2014 ◽  
Vol 698 ◽  
pp. 679-682
Author(s):  
Anastasia Markelova ◽  
Artem Trifonov ◽  
Valeria Olkhovskaya
Keyword(s):  
Hard Water ◽  
Component Composition ◽  
High Viscosity ◽  
Oil Fields ◽  
Nonlinear Dependence ◽  
Fractional Flow ◽  
Two Phase ◽  
Oil Flow ◽  
High Viscosity Oil

The article offers a method to solve Buckley-Leverett’s problem, taking into account the nonlinear dependence of the filtration rate of viscoplastic oil on the pressure gradient. This method is based on the transformation of the fractional flow function by introducing in the theory of water drive the equations reflecting the rheological features of the oil flow. The resulting model allows us to quantify the influence of rheological factors on the completeness of the water-oil displacement and to calculate the performance, taking into account the component composition of the hydrocarbon phases. Taking the Samara Region oil fields as an example, the article shows that the quality of design is unsatisfactory when the bundled software being used does not take into account specific non-Newtonian properties of the high-viscosity oil.

scholarly journals Laboratory Studies of Carboniferous Reservoirs of High-Viscosity Oil Fields Using Carbondioxide

2020 ◽  
Vol 20 (4) ◽  
pp. 369-385
Author(s):  
Stanislav A. Kalinin ◽  
◽  
Oleg A. Morozyuk ◽  
Keyword(s):  
Carbon Dioxide ◽  
Heat Carrier ◽  
Oil Recovery ◽  
High Mobility ◽  
High Viscosity ◽  
Laboratory Studies ◽  
Carbon Dioxide Injection ◽  
Recovery Method ◽  
Matrix Blocks ◽  
High Viscosity Oil

It is of current concern for the Permian-Carboniferous reservior of the Usinskoye field to develop low-permeable matrix blocks of carboniferous reservoirs, which contain major reserves of high-viscosity oil. To increase effectiveness of the currently used thermal oil recovery methods, the authors suggest using carbon dioxide as a reservoir stimulation agent. Due to a high mobility in its supercritical condition, СО2 is, theoretically, able to penetrate matrix blocks, dissolve in oil and, additionally, decrease its viscosity. Thus, СО2 applications together with a heat carrier could increase effectiveness of the high-viscosity oil recoveries and improve production parameters of the Permian-Carboniferous reservior of the Usinskoye field. During carbon dioxide injections, including combinations with various agents, some additional oil production is possible due to certain factors. Determination of the influencing factors and detection of the most critical ones is possible in laboratory tests. So, laboratory studies entail the key stage in justification of the technology effectiveness. The paper deals with describing the laboratory facilities and methodologies based on reviews of the best world practice and previous laboratory researches. These aim at evaluating effectiveness of thermal, gas and combined oil recovery enhancement methods. In particular, the authors explore experimental facilities and propose methodology to perform integrated researches of the combined heat carrier and carbon dioxide injection technology to justify the effective super-viscous oil recovery method.

Analysis of the polymer flooding efficiency in one of the high-viscosity oil fields based on mathematical modeling

2021 ◽  
Author(s):  
M.G. Persova ◽  
Yu.G. Soloveichik ◽  
A.S. Ovchinnikova ◽  
D.S. Kiselev ◽  
I.I. Patrushev
Keyword(s):  
Mathematical Modeling ◽  
High Viscosity ◽  
Polymer Flooding ◽  
Oil Fields ◽  
High Viscosity Oil
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