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Citation: ZHU Wei-Qun, ZHANG Rui, LIU Guang-Zeng, LI Shu-Ping, GUO Bao-Yu. Property of a Clay Stabilizer-CETA[J]. Chinese Journal of Applied Chemistry, ;2003, 20(10): 955-958. shu

Property of a Clay Stabilizer-CETA

1.
a Ministry of Education, Key Laboratory for Colloid and Interface Chemistry, Shandong University, Ji'nan 250100;
2.
b The Drilling Fluids Co. of the Shengli Oilfield, Dongying

Corresponding author: ZHU Wei-Qun,
Received Date: 4 December 2002
Available Online: 13 May 2003
Fund Project: 胜利石油管理局2002年重点科技管理(KZJ32001021)资助项目 (KZJ32001021)

A cationic clay stabilizer 2-chloroethyl trimethyl ammonium chloride(CETA) was prepared. The adsorption isotherms of CETA on Ca-montmorillonite were recorded by static method. The Zeta potential of the Ca-montmorillonite suspension as measured by micro-electrophoresis appartus was found increased from nagative to positive value with the increase in concentration of CETA. The lattice spacing of the adsorbed CETA montmorillonite juged by XRD decreased with increase of adsorptive capacity of CETA. At saturation adsorption of CETA the lattice spacing attains the minimal value. The shale recovery experiments showed that it increases with the increase in concentration of CETA. Almost the same shale recovery could be achieved by using 1% KCl solution or 0.1% CETA solution. The result indicate the good inhibition effect of CETA on the clay.
- Ca-montmorillonite,
- clay stabilizer,
- quaternary ammonium salt,
- adsorption
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