Effect of Dissolved Oxygen Content on Gelling Strength of Chromium Gel in Block Hai 1

Peng Fei Yuan; Guang Sheng Cao; Xiao Ma; Xiao Ping Wang; Xin Tian

doi:10.4028/www.scientific.net/AMR.1008-1009.243

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1008-1009Effect of Dissolved Oxygen Content on Gelling...

Effect of Dissolved Oxygen Content on Gelling Strength of Chromium Gel in Block Hai 1

Abstract:

Jinma company of Liaohe oilfield has carried out weak gel flooding in-depth in block Hai1 and achieved good effect. But in the process of profile and flooding, problems of gelation fluctuating and gelling rate declining seriously affected the implementation effect of the profile control and flooding project. It is researched that one of main factors affecting gelling effect of profile and flooding system is the dissolved oxygen. Aiming at this problem, this paper studies critical value affecting gelling in combination with the actual situation of polymer displacement in block Hai 1. The experimental results show that, content of dissolved oxygen affects both gelling strength and gelling time of weak gel in the way that when dissolved oxygen content is between 0mg/L and 3mg/L, low gelling strength and long gelling time are obtained, while in the range of 4mg/L-10mg/L, gelling effect is good. Two critical values are respective 1.5mg/L and 7mg/L.

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Periodical:

Advanced Materials Research (Volumes 1008-1009)

Pages:

243-246

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.243

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Online since:

August 2014

Authors:

Peng Fei Yuan, Guang Sheng Cao, Xiao Ma, Xiao Ping Wang, Xin Tian

Keywords:

Block Hai 1, Dissolved Oxygen Content, Gelling Strength, Weak Gel Flooding

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