Rheological properties of polymer-gel drilling fluids at high temperature and pressure

被引:20
|
作者
Bu, Hai [1 ,2 ]
Sun, Jinsheng [2 ]
Wang, Chengbiao [3 ]
Bu, Ping [3 ]
机构
[1] China Univ Geosci, Sch Engn & Technol, Beijing, Peoples R China
[2] CNPC, Res Inst Drilling Engn, Beijing, Peoples R China
[3] China Univ Petr, Sch Business Adm, Beijing, Peoples R China
关键词
drilling fluids; water-soluble polymer; rheological model; apparent viscosity; multivariate statistics;
D O I
10.1007/s10553-013-0394-z
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Free-radical polymerization in solution was used to synthesize a terpolymer consisting of acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, and styrene sulfonate. Drilling fluids based on the terpolymer were prepared for use in high-temperature and high-pressure wells. The rheological properties of the drilling fluids based on the terpolymer were analyzed by the regression method. We found that the rheological properties of the drilling fluids at high temperature and high pressure can be described by the Casson model. A mathematical model is proposed for predicting the downhole viscosity of drilling fluids containing the terpolymer at high temperature and high pressure.
引用
收藏
页码:449 / 458
页数:10
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