scholarly journals Numerical Calculation of Viscous-Elastic Fluid Flooding Residual Oil Film in the Complex Pore

2013 ◽  
Vol 03 (03) ◽  
pp. 147-151
Author(s):  
Lili Liu ◽  
Chao Yu ◽  
Lihui Wang ◽  
Lu Liu
Keyword(s):  
Numerical Calculation ◽  
Residual Oil ◽  
Oil Film ◽  
Elastic Fluid

Detection of Residual Oil Film on Polished KDP Crystal by Atomic Force Microscope

2018 ◽  
Vol 61 (4) ◽  
pp. 618-625
Author(s):  
Lichao Guan ◽  
Jiexiong Ding ◽  
Yunpeng Zhang ◽  
Haining Li ◽  
Chao Wang ◽  
...  
Keyword(s):  
Atomic Force Microscope ◽  
Residual Oil ◽  
Kdp Crystal ◽  
Oil Film ◽  
Atomic Force

The Research of the Dynamic Model of Oil Film in Pores

2013 ◽  
Vol 448-453 ◽  
pp. 3046-3049
Author(s):  
Run Tong Wu ◽  
Kao Ping Song ◽  
Er Long Yang
Keyword(s):  
Film Thickness ◽  
Oil Recovery ◽  
Polymer Flooding ◽  
Total Output ◽  
Residual Oil ◽  
Dynamics Model ◽  
Oil Film ◽  
Macroeconomic Conditions ◽  
Theoretical Significance ◽  
Tertiary Oil Recovery

As a mature tertiary oil recovery technology, polymer flooding has been widely used in domestic oilfields, especially in Daqing oilfield, its polymer flooding production has reached more than 25% of total output. Therefore, there are important theoretical significance and application value to do further research of polymer flooding mechanism and use to guide the production. In order to understand the mechanism of polymer flooding, polymer flooding oil film based on the decrease of residual oil range is the biggest, established the dynamics model of polymer solution displacement of rock wall oil film under the condition of tensile and shear flow. In addition, this paper discussed the effect of the oil film thickness, tensile index, dimensionless tensile coefficient as well as the power-law coefficient on oil film start, and pointed out macroeconomic conditions which is the oil film start required.

A Rapid Method of Numerical Calculation for Oil Film Temperature in Engine Bearings

2007 ◽  
Author(s):  
Katsuhiro Ashihara ◽  
Hiromu Hashimoto
Keyword(s):  
Numerical Calculation ◽  
Film Thickness ◽  
Rapid Method ◽  
Energy Equation ◽  
Numerical Solutions ◽  
Hydrodynamic Lubrication ◽  
Dimensional Model ◽  
Calculation Time ◽  
Oil Film ◽  
3 Dimensional

In the design and analysis of engine bearings for automobiles, the elastic deformation of bearing surface due to high pressure and temperature of oil film affects significantly on the bearing characteristics. Thermo-elasto-hydrodynamic lubrication analysis (TEHL) is usually used to consider such effects, but a large amount of calculation time is needed to obtain the numerical solution of oil film temperature by solving the conventional type of 3-dimensional energy equation in TEHL. This paper describes a rapid method of numerical calculation of oil film temperature in engine bearings. In this modeling, it is assumed that the temperature distribution in the oil film thickness direction takes the parabolic form. Under such an assumption, averaging the 3-dimensional energy equation over the film thickness, the 2-dimensional energy equation is newly obtained. The numerical solutions of oil film temperature based on the 2-dimensional model are compared with the solutions based on the 3-dimensional model. It is confirmed that the calculation time is remarkably reduced to obtain the oil film temperature with an allowable accuracy. Moreover, the predicted oil film temperature by the 2-dimentional model is compared with measured data, and the good agreement is seen between them.

Microscopic Mechanism of Salt-Bearing Polymer Flooding

2014 ◽  
Vol 556-562 ◽  
pp. 416-420
Author(s):  
Ling Hui Sun ◽  
Ji Hong Li ◽  
Chun Liu Sun ◽  
Yun Long Zhang ◽  
Zhi Qing Li
Keyword(s):  
Experimental Study ◽  
Normal Stress ◽  
Polymer Flooding ◽  
Residual Oil ◽  
Microscopic Mechanism ◽  
Oil Migration ◽  
Oil Film ◽  
Microscopic Models ◽  
Micro Flow

In order to study the mechanism of salt-bearing polymer flooding, using micro-flow technology, experimental study of salt-bearing polymer flooding residual oil process was carried outin two microscopic models of hydrophilic and lipophilic formation.Its microscopic percolation mechanism wasinspected. In hydrophilic model, after injecting salt-bearing polymer residual oil is capturedand migrated, and there is residual oil drawinganddeformation phenomena which is consistent with common polymer; while flooding process due to larger viscoelasticity of salt-bearing polymer, normal stress is generated in the flow, so the cutting action of the residual oil is obvious. In lipophilic model, after injecting salt-bearing polymer, residual oil migration, the film gathering,interface transport, a bridge and drawing phenomenon happened which is consistent with common polymer; polymer difference between salt-bearing polymer andcommon polymeris that from the ordinary and the residual oil film formed by common polymer is flexible and easier to form "emulsion.

scholarly journals Mechanical Analysis of Viscous-Elastic Fluid Acting on Residual Oil in the Micro Pore

2013 ◽  
Vol 03 (04) ◽  
pp. 248-251
Author(s):  
Lili Liu ◽  
Chao Yu ◽  
Lihui Wang ◽  
Chengchuyue Fu ◽  
Peixiang Li
Keyword(s):  
Mechanical Analysis ◽  
Residual Oil ◽  
Elastic Fluid

scholarly journals Displacement Mechanisms of Residual Oil Film in 2D Microchannels

ACS Omega ◽  
2021 ◽  
Vol 6 (6) ◽  
pp. 4155-4160
Author(s):  
Jiawei Fan ◽  
Lili Liu ◽  
Shanxin Ni ◽  
Jing Zhao
Keyword(s):  
Residual Oil ◽  
Oil Film
Sign in / Sign up

Export Citation Format

Share Document