Polymer Flooding by Hydrophobically Associating Polyacrylamide. (Technology Of Preparation. The Study Of The Processes Of Stability And Degradation).

2015 ◽  
Author(s):  
Olga Y. Patokina
Keyword(s):  
Polymer Flooding ◽  
Hydrophobically Associating Polyacrylamide ◽  
Hydrophobically Associating

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).

scholarly journals Self-Assembly of Hydrophobically Associating Polyacrylamide and Gemini Surfactant

2012 ◽  
Vol 28 (06) ◽  
pp. 1405-1410
Author(s):  
HAN Li-Juan ◽  
◽  
YE Zhong-Bin ◽  
CHEN Hong ◽  
LUO Ping-Ya ◽  
...  
Keyword(s):  
Self Assembly ◽  
Gemini Surfactant ◽  
Hydrophobically Associating Polyacrylamide ◽  
Hydrophobically Associating

Performance and field implementation of a new fracturing fluid consisting of hydrophobically associating polyacrylamide and anionic surfactant

2016 ◽  
Vol 36 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Zhongcong Zhao ◽  
Tongyi Liu ◽  
Pingya Luo ◽  
Yan Li ◽  
Jianxin Liu ◽  
...  
Keyword(s):  
Network Structure ◽  
Anionic Surfactant ◽  
Self Assembly ◽  
Fracturing Fluid ◽  
Hydroxypropyl Guar ◽  
Fluid Field ◽  
Fracturing Fluids ◽  
Hydrophobically Associating Polyacrylamide ◽  
Hydrophobically Associating ◽  
Static Conditions

Abstract The fundamental cause of the proppant suspension behavior in hydraulic fracturing fluids lies in its internal microcosmic network structure and structural strength. In addition to chemical crosslinking, another method to form a network structure is established in this paper. Hydrophobically associating polyacrylamide and an anionic surfactant self-assembly process was applied to form a network structure. Compared with crosslinked hydroxypropyl guar gel, the new fracturing fluid even has better proppant suspending properties in static conditions. The capability does not result from crosslinkage but from reinforced physical associations between chains. The performance of this new fracturing fluid was tested and the results showed that it can fully satisfy the requirement of fracturing fluid. Field test shows excellent stimulation effects during its applications in 400 wells in eight oilfields in China.

Dissolution Characteristics of Hydrophobically Associating Polyacrylamide in Stirred Tanks

2010 ◽  
Vol 18 (1) ◽  
pp. 170-174 ◽  
Author(s):  
Guozhong ZHOU ◽  
Minghui XIE ◽  
Min LIU ◽  
Huaxiao WU ◽  
Xiangli LONG ◽  
...  
Keyword(s):  
Stirred Tanks ◽  
Hydrophobically Associating Polyacrylamide ◽  
Hydrophobically Associating
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