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

Analysis of Reservoir Applicability of Hydrophobically Associating Polymer

SPE Journal ◽  
2016 ◽  
Vol 21 (01) ◽  
pp. 1-9 ◽  
Author(s):  
Kun Xie ◽  
Xiangguo Lu ◽  
Qiang Li ◽  
Weidong Jiang ◽  
Qin Yu
Keyword(s):  
Oil Recovery ◽  
Polymer Concentration ◽  
Oil Field ◽  
Reservoir Heterogeneity ◽  
Oil Displacement ◽  
Fluid Properties ◽  
Concentration Changes ◽  
Hydrophobically Associating ◽  
Associating Polymer ◽  
Hydrophobically Associating Polymer

Summary In this paper, the reservoir characteristics and fluid properties of a reservoir of the Bohai Sea oil field were taken as the research platform. It was confirmed that there exists compatibility between hydrophobically-associating-polymer (HAP) molecular aggregation and pore-throat size. The experiment for oil displacement in heterogeneous cores indicated that there exists applicability of HAP for a heterogeneous reservoir and the applicability can be influenced by polymer concentration. The experiment for oil displacement of parallel cores demonstrated the effect of polymer concentration on the applicability of HAP for reservoir heterogeneity from two aspects of the dynamic behavior of oil displacement and the effectiveness of oil displacement. The results show that with the increase of HAP concentration, the association degree between polymer molecules increases, molecular-clew dimension enlarges, and the compatible size of pore throats of the core increases. The change of HAP concentration not only has an effect on the amount of liquid suctioned by different permeability layers and on the time of profile inversion, but also has an effect on the displacement ability of polymer solution within different layers. As polymer concentration changes, the adaptability of HAP for reservoir heterogeneity changes and the oil-recovery efficiency also changes.

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.

Preparation and Solution Characteristics of a Novel Hydrophobically Associating Terpolymer for Enhanced Oil Recovery

2011 ◽  
Vol 40 (3) ◽  
pp. 447-457 ◽  
Author(s):  
Peng Zhang ◽  
Yefei Wang ◽  
Wuhua Chen ◽  
Haiyang Yu ◽  
Ziyuan Qi ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Hydrophobically Associating
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