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The Effect of Temperature on Moisture Inverted Point and Viscous Ultiples
He Wenyuan, Hao Qingyan, Li Meirong, Meng Qiuyu,Yu Guangsong
Abstract
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539
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538
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Two ordinary heavy oils and three super heavy oils in shengli oil field are used to study and the effect of temperature and viscosity on the moisture inverted point and the viscous multiples. The results show that the inverted point increases with increasing of the temperature, and the viscous multiples of the inverted point also increases. While the viscous multiples of the same moisture content firstincreases and then decreases. Comparing the inverted point and viscous multiples, it is found that the on
e which has low viscosity will have high inverted point, low viscous multiples of the same moisture content and high viscous multiples of the inverted point.
2016, 29 (1): 6-9.
DOI:
10.3969/j.issn.1006-396X.2016.01.002
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Microscopic Displacement Mechanism of Ordinary Heavy Oil by Viscosity Reducer and Polymer Flooding
Zhao Hongyu,Li Meirong,Qu Caixia,Hao Qingyan
Abstract
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440
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324
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Viscosity reducer and polymers system suitable for heavy oil of block Gudao2 of Shengli oilfield were selected so that recovery and microscopic mechanism of viscosity reducer and polymer flooding were compared. The results showed that the ultimate recovery rate of water flooding was only 41.1% and after water flooding there was large presence of residual oil and the film and lump. The recovery rate of XJ and OP10 viscosity reducer flooding after water flooding was increased by 18.67%, which mainly relied on transport of large oil particles after deformation and emulsification to reduce the flow resistance and boosting function of dispersed oil particles to oil film and stripping of the remaining oil by drawing. The recovery rate of APP5 polymer flooding after water flooding was increased by 18.55% by increasing the sweep area and the pull effect on the oil film and blindresidual oil, so polymer flooding compared with viscosity reducer flooding was more valuable.
2015, 28 (1): 59-64.
DOI:
10.3969/j.issn.1006-396X.2015.01.013
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Research of the Gray Entropy Correlation of W/O Emulsion Viscosity Increment of Heavy Oil
Wen Pingan,Tang Shukai, Li Meirong,et al
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472
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290
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The relationships between the W/O emulsion viscous multiples and the compositions of heavy oil (the content of polar fractions, the content of heteroatom, the content of metallic elements), the properties of heavy oil (the molecular weight of polar fractions, the mean dipole moment of polar fractions) were studied by means of gray entropy correlation method.It was shown thatthe content of asphaltene, colloid, O and Ni were all important factors affecting the W/O emulsion viscous multiples in the compositions of heavy oil. The properties of asphaltene played a decisive role in the W/O emulsion viscous multiples among the properties of heavy oil.
2014, 27 (3): 76-80.
DOI:
10.3969/j.issn.1006-396X.2014.03.017