scholarly journals Adsorption Characteristics of Polymer Solutions on Media Surfaces and Their Main Influencing Factors

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1774
Author(s):  
Shijie Zhu ◽  
Zhongbin Ye ◽  
Zhezhi Liu ◽  
Zhonghua Chen ◽  
Jun Li ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Influencing Factors ◽  
Quartz Sand ◽  
Polymer Solutions ◽  
Physical Adsorption ◽  
Fluid Velocity ◽  
Adsorption Characteristic ◽  
Hydrophobically Associating ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer

In practical applications, the chemical and physical adsorption of a polymer solution greatly affects its action mode and effect. Understanding the adsorption mechanism and its influencing factors can help to optimize the application mode and ensure application efficiency. Three types of polymer solutions—partially hydrolyzed polyacrylamide (HPAM), hydrophobically associating polymer (AP-P4), and dendrimer hydrophobically associating polymer (DHAP), which are viscoelastic liquids—were used as sorbates to study their adsorption by a sorbent such as quartz sand. The effects of the solution concentration, contact time, particle size of quartz sand, solid–liquid ratio, and fluid movement on the adsorption capacity of the polymer solutions were examined. The results showed that HPAM presents a typical Langmuir monolayer adsorption characteristic, and its adsorption capacity (per unit area) is 1.17–1.62 μg/cm2. The association enhances the interactions of the AP-P4 and DHAP solutions, and they present multilayer characteristics of first-order chemical adsorption and secondary physical molecule adsorption. Moreover, the dendrite structure further increases the adsorption thickness of DHAP. Hence, the adsorption thicknesses of AP-P4 and DHAP are four and six times that of HPAM, respectively. The adsorption of the three polymers is consistent with the influence of fluid motion and decreases with increasing fluid velocity. However, the larger the thickness of the adsorption layer, the clearer the influence of the flow, and the higher the decrease in adsorption capacity. Optimizing the injection rate is an effective method to control the applications of a polymer in porous media.

Gelation Study on a Hydrophobically Associating Polymer/Polyethylenimine Gel System for Water Shut-off Treatment

2015 ◽  
Vol 29 (2) ◽  
pp. 447-458 ◽  
Author(s):  
Yingrui Bai ◽  
Chunming Xiong ◽  
Falin Wei ◽  
Junjian Li ◽  
Yong Shu ◽  
...  
Keyword(s):  
Hydrophobically Associating ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer ◽  
Gel System

Research on Efficient Polymer Dissolving Technology for Hydrophobically Associating Polymer Flooding on Offshore Platform

2014 ◽  
Vol 670-671 ◽  
pp. 290-294 ◽  
Author(s):  
Yue Jun Zhu ◽  
Jian Zhang ◽  
Wen Sen Zhao ◽  
Shan Shan Wang ◽  
Bo Jing ◽  
...  
Keyword(s):  
Load Capacity ◽  
Polymer Flooding ◽  
Offshore Platform ◽  
Polymer Materials ◽  
Injection System ◽  
Bohai Bay ◽  
Rapid Dissolution ◽  
Hydrophobically Associating ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer

In order to apply the technique of polymer flooding to the offshore oilfield, some contraventions (the large well spacing, the high salinity formation water, the narrow production platform space, the limited load capacity, the slow dissolution of hydrophobically associating polymer, the voluminous existing polymer injection equipment) must be faced. In order to resolve the problems, a study on the efficient polymer dissolving technology for hydrophobically associating polymer flooding on offshore platform was conducted. The principle of polymer rapid dissolution was analyzed on its restrictive factors. By comprehensive utilization of multi-disciplinary angle of studying from polymer materials, fluid mechanics, et al, the efficient polymer dissolving technology was formed by means of compulsory stretching and water logging for polymer molecular chains, and break through the "bottlenecks" of polymer rapid dissolution. The designed dispersing & dissolving equipment cut down the polymer dissolution time from 60 min to 40 min. Meanwhile, the auto-unloading device, metering device, curing system, injection system, and automatic control system were optimized. Compared with the original equipment, the novel one’s occupied area and operating weight decreased by 21% and 37%, respectively. The efficient injection allocation technology was applied to the polymer flooding pilot testing in Bohai bay so as to provide key technology and equipment support for cumulative incremental oil 395×104 m3 (up to June, 2014), incremental output value 12 billion yuan (estimated by the barrel oil price $90).

Ageing Effect on Steady Rheological Behavior in Oilfield Water of Water-Soluble, Hydrophobically Associating Polymer

2013 ◽  
Vol 781-784 ◽  
pp. 431-435 ◽  
Author(s):  
Yue Jun Zhu ◽  
Jian Zhang ◽  
Bo Jing ◽  
Ye Bang Tan
Keyword(s):  
Shear Rate ◽  
Storage Time ◽  
Ageing Time ◽  
Water Soluble ◽  
Hydrophobically Associating ◽  
Oilfield Water ◽  
And Storage ◽  
Macromolecular Composition ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer

The effect of ageing time on the macromolecular composition and conformation on intermolecular entanglement and crosslinking was investigated for a water-soluble, hydrophobically associating polymer (WSHAP), by steady-flow and oscillatory experiments at reservoir temperature (65 °C). The measurement of rheological properties was carried out with changing sample properties such as shear stress, shear rate and storage time. Moreover, for the investigated samples, the mathematical interpretation of relationship between the modulusGand the shear rate γ according to the Ostwald de Waele (power law) model, was carried out. Energy of viscous flow (Ea) has also been determined and discussed.

Synthesis and evaluation of a novel hydrophobically associating polymer based on acrylamide for enhanced oil recovery

2015 ◽  
Vol 69 (12) ◽  
Author(s):  
Jin-Sheng Sun ◽  
Wei-Chao Du ◽  
Xiao-Lin Pu ◽  
Zhuan-Zheng Zou ◽  
Bo-Bo Zhu
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Hydrophobic Monomer ◽  
Hydrophobically Associating ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer

AbstractA novel polymerizable hydrophobic monomer 1-(4-dodecyloxy-phenyl)-propenone (DPP) was synthesized by esterification, Frise rearrangement and Williamson etherification; then, the obtained DPP was copolymerized with 2-(acrylamido)-dodecanesulfonic acid (AMC

scholarly journals A novel binary flooding system of a biobased surfactant and hydrophobically associating polymer with ultralow interfacial tensions

RSC Advances ◽  
2018 ◽  
Vol 8 (41) ◽  
pp. 22986-22990 ◽  
Author(s):  
Na Li ◽  
Xin-Ning Bao ◽  
Yong-Jun Guo ◽  
Shi-Zhong Yang ◽  
Ying-Cheng Li ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Zwitterionic Surfactant ◽  
Interfacial Tensions ◽  
Biobased Surfactant ◽  
Hydrophobically Associating ◽  
Ultralow Interfacial Tension ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer

A novel alkali free binary flooding system of a biobased zwitterionic surfactant and hydrophobically associating polymer with ultralow interfacial tension at a low surfactant dosage was studied in this paper.

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