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2014 (Vol. 7, Issue: 6)
Article Information:

Study on Synthesis of Polyacrylamide Microspheres and its Sealing Characteristics of Drilling Fluid

Mingming Cheng, Guanglun Lei, Jianwu Zhen and Jianbo Gao
Corresponding Author:  Guanglun Lei 

Key words:  Drilling fluid, microspheres, polyacrylamide, sealing characteristics, synthesis, ,
Vol. 7 , (6): 1217-1222
Submitted Accepted Published
March 28, 2013 April 22, 2013 February 15, 2014
Abstract:

For the purpose of reducing the invasion depth of solid phase and liquid phase of drilling fluid and improving the quality of drilling mud cake, polyacrylamide microspheres were successfully composed via reversed phrase emulsion method. The physical and chemical structures of the samples as well as the grain-size variation were investigated by Transmission Electron Microscopy (TEM) and Laser Particle Size Analysis method (LPSA).The plugging performance of the samples were investigated by core plugging experiment and sand bed filtration experiment. TEM images show that acrylamide has been polymerized, the products consist of a lot of monodisperse microspheres with a size of about 1-6 μm. LPSA images indicate that the particle size of polyacrylamide microspheres vary with time and temperature regularly. The experiment that simulates rock strata with different permeability shows those polyacrylamide microspheres can produce effectively blocked to the core and sand bed and then it establishes the foundation for the next field test.
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  Cite this Reference:
Mingming Cheng, Guanglun Lei, Jianwu Zhen and Jianbo Gao, 2014. Study on Synthesis of Polyacrylamide Microspheres and its Sealing Characteristics of Drilling Fluid.  Research Journal of Applied Sciences, Engineering and Technology, 7(6): 1217-1222.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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