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Abstract
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Article Information:
The Effect of Synthesis Conditions on the Performance of Large Temperature Difference Retarder
Guo Shenglai, Bu Yuhuan, Shen Zhonghou and Du Fu and Ma Cong
Corresponding Author: Guo Shenglai
Submitted: October 03, 2012
Accepted: December 03, 2012
Published: May 10, 2013 |
Abstract:
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In view of the ability of present oil well cement retarder is poor to adapt to the large temperature difference, using 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and Itaconic Acid (IA), a new retarder AMPS/IA (AI) which could solve the problem of the large temperature difference was synthesized by free radical aqueous solution copolymerization. The effect of reaction conditions on the properties of retarder was studied. The results indicate that the monomer ratio and the pH value are more important than the monomer concentration, temperature and initiator dosage as impact factor for the performance of AI. The optimal AI (OAI) was obtained under the optimum reaction conditions: mole ratio of AMPS/IA = 73/27, monomer concentration = 40%, amount of (by weight of monomer) initiator = 2%, pH value = 2 and temperature = 60°C. Compared with the ordinary retarder, the OAI has merits as follows: excellent thermal resistant ability, less dosage, suitable for large temperature difference. The thickening time of the slurry with 1.5% OAI is 313 min at 180°C; the setting time is 72 h at 50°C, which indicates the OAI could meet the temperature range from 50°C to 180°C. In short, the OAI has excellent ability to adapt to the large temperature difference.
Key words: Cement, cementing, oil well, retarder, synthesis conditions, ,
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Cite this Reference:
Guo Shenglai, Bu Yuhuan, Shen Zhonghou and Du Fu and Ma Cong, . The Effect of Synthesis Conditions on the Performance of Large Temperature Difference Retarder. Research Journal of Applied Sciences, Engineering and Technology, (19): 4751-4756.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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