Evaluation of polyacrylamide/clay composite as a potential drilling fluid additive in inhibitive water based drilling fluid system

被引:123
作者
Jain, Rajat [1 ]
Mahto, Vikas [1 ]
机构
[1] Indian Sch Mines, Dept Petr Engn, Dhanbad 826004, Bihar, India
关键词
Shale recovery; Nanocomposite; Rheological properties; Polyacrylamide; GRAFT-COPOLYMERIZATION; MORPHOLOGY; CLAY; GUM;
D O I
10.1016/j.petrol.2015.07.009
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
The troublesome shale formations need special formulation of drilling fluids having high shale inhibition characteristics to mitigate wellbore instability problems. In the present study, polyacrylamide/clay nanocomposite (PANC) was synthesized and used as drilling fluid additive. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy, field emission scanning electron microscopy, and the rmogravimetric analysis. During the synthesis, clay to monomer ratios were varied and the effect of synthesized product on the rheological and filtration properties of the drilling fluid system was studied thoroughly. Finally, most suitable grade of PANIC was utilized as a drilling fluid additive and its effect on the shale recovery was studied and compared with partially hydrolyzed polyacrylamide, a frequently used shale encapsulator. The experimental investigations revealed that PANC exhibited superior shale encapsulation property than partially hydrolyzed polyacrylamide (PHPA). Hence, synthesized nanocomposite may be used as a drilling fluid additive in inhibitive water based drilling fluid system. (C) 2015 Elsevier B.V. All rights reserved
引用
收藏
页码:612 / 621
页数:10
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