Laboratory Evaluation on Styrene Butadiene Latex Specialized for Oil Well Cement

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Abstract

With regard to poor applicability of traditional styrene-butadiene latex in oil well cement, styrene-butadiene latex specialized for oil well cement was developed by seeded emulsion polymerization, while its micro-structure and properties were evaluated. Physical properties with styrene-butadiene latex, IR and TG analysis show that:styrene-butadiene latex has good emulsion stability and stable molecular structure. The application performance and microstructure of slurries show that:API filtration of slurries with styrene-butadiene latex can be controlled under 50 mL. Slurries with styrene-butadiene latex has excellent salt-resistance and can also deal with the package of thickening curve in traditional styrene-butadiene latex; slurries mainly prepared by styrene-butadiene latex present rapid development of early strength, short transit time during thickening process. What is more, styrene-butadiene latex can refine the pore structure to improve the cementing strength of the cement slurry and the deformation ability, And the flexibility is relatively higher by 30% in comparison with ordinary oil well cement. It can satisfy cementing requirements in deep well, ultra-deep well and gas well.

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	Articles by authors
	Xiao Mingming
	Guo Jintang
	Jin Jianzhou
	Yu Yongjin
	Fan Jinjie

Keywords： oil well cement； styrene butadiene latex； emulsion stability； salt tolerance； gas channeling prevention； flexibility

Received 2016-03-23;

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Cite this article:

Xiao Mingming, Guo Jintang, Jin Jianzhou, Yu Yongjin, Fan Jinjie.Laboratory Evaluation on Styrene Butadiene Latex Specialized for Oil Well Cement[J] Chemcial Industry and Engineering, 2017,V34(6): 18-23

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