The Reservoir Adaptability Evaluation and Oil Displacement Mechanism of a Novel Particle-Type Polymer Flooding Technology

The dispersed low-elastic microsphere system shows shear-thickening behavior because of the microstructure change and the interaction of internal forces.

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Experimental Study on the Displacement Performance of Heat-Resistant Polymer

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.675-677.1495 ◽

2014 ◽

Vol 675-677 ◽

pp. 1495-1499 ◽

Cited By ~ 1

Author(s):

Tao Ping Chen ◽

Biao Qiu

Keyword(s):

Polymer Flooding ◽

Displacement Efficiency ◽

Oil Viscosity ◽

Permeability Ratio ◽

Ratio Increase ◽

Displacement Effect ◽

Oil Displacement ◽

Heat Resistant ◽

Homogeneous Core ◽

Oil Displacement Efficiency

The displacement performance of heat-resistant polymer is evaluated with the artificial cores and natural cores under 95°C. The best concentration of BH heat-resistant polymer is 1500 mg/L, and the best slug is 0.6 PV on the condition of the average permeability is 600×10-3μm2 of the homogeneous core and the oil viscosity is 2.3mPa • s. Under the best concentration and the PV size, BH heat-resistant polymer solution has better displacement effect for the artificial double core whose permeability ratio is less than 4. When permeability ratio exceed 4, the displacement affect no longer increase. When the mobility ratio increase from 0.05 to 0.2, for the artificial cores, the recovery of polymer flooding reduce by 3.17%, and for the natural cores, the recovery of polymer flooding reduce by 2.26%. The recovery of BH polymer that is aged for 90 days after vacuumed is 32.29%. Comparing with the fresh BH polymer, it is lower by 6.56%. That is to say that the aged BH polymer still has good oil displacement efficiency.

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Experimental Study on Oil Displacement Mechanism

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/113/1/012103 ◽

2018 ◽

Vol 113 ◽

pp. 012103

Author(s):

Yanfu Pi ◽

Hongzhi Shao ◽

Yanming Pi ◽

Li Liu

Keyword(s):

Experimental Study ◽

Displacement Mechanism ◽

Oil Displacement

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Theoretical analysis of microscopic oil displacement mechanism by viscoelastic polymer solution

Theoretical and Applied Mechanics Letters ◽

10.1063/2.1102204 ◽

2011 ◽

Vol 1 (2) ◽

pp. 022004 ◽

Cited By ~ 5

Author(s):

Yuhu Bai ◽

Xiansong Zhang ◽

Guoshi Zhao

Keyword(s):

Theoretical Analysis ◽

Polymer Solution ◽

Displacement Mechanism ◽

Oil Displacement ◽

Viscoelastic Polymer

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Influence of stability of polymer surfactant on oil displacement mechanism

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/113/1/012135 ◽

2018 ◽

Vol 113 ◽

pp. 012135

Author(s):

Li Liu ◽

Chengliang Li ◽

Yanming Pi ◽

Di Wu ◽

Ying He ◽

...

Keyword(s):

Displacement Mechanism ◽

Oil Displacement ◽

Polymer Surfactant

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The Effect of Following Water after Polymer Flooding on the Displacement Efficiency with Alternately Injecting Slug of Gel and Polymer/Surfactant

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.734-737.1290 ◽

2013 ◽

Vol 734-737 ◽

pp. 1290-1293 ◽

Cited By ~ 1

Author(s):

Ji Hong Zhang ◽

Yu Wang ◽

Xi Ling Chen ◽

Zi Wei Qu ◽

Dong Ke Qin

Keyword(s):

Polymer Flooding ◽

Experimental Results ◽

Compound System ◽

Residual Oil ◽

Displacement Efficiency ◽

Flat Panel ◽

Oil Displacement ◽

Panel Model ◽

Displacement Experiments ◽

Polymer Surfactant

Aiming at the development of remaining oil after polymer flooding, the author develops an oil displacement technology, alternately injecting the slug of the gel and polymer/surfactant compound system, which can advanced improve the remained oil after polymer flooding. By using the artificial large flat-panel model, the oil displacement experiments are carried on to study the injection characteristics and the displacement efficiency of the alternately injecting the slug of gel and polymer/surfactant compound system, and whether the following water should be injected after polymer flooding has been discussed. The experimental results show that, the recovery of alternately injecting the gel and polymer/surfactant slug after polymer flooding could enhance recovery more than 10% on the basis of polymer flooding, the following water after polymer flooding has a little impact on the final recovery but increasing time and the difficulty of development. Therefore, these results provide the technology that alternately injecting the slug of the gel and polymer/surfactant could advance develop the residual oil and enhance the recovery after polymer flooding.

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