Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of Ammonium Hydrolyzed Polyacrylonitrile on Oil-Well Cement Slurry
Ammonium hydrolyzed polyacrylonitrile () is a drilling fluid additive usually used in drilling fluids. However, and cement slurry have poor chemical compatibility. When they come into contact with each other, cement slurry can be contaminated, which damages the cementing quality and causes downhole emergency. This paper studies the effects of on the properties of cement slurry, such as thickening time, rheological properties, and compressive strength. This paper combines atomic absorption spectrophotometer, zeta probe potentiostat, and environmental scanning electron microscope (ESEM) to explore the contamination mechanism in cement slurry. The experimental results show that decreases the zeta potential of cement slurry and reduces the electrical property of cement particle surfaces, which causes particles agglomeration. Moreover, reacts with cement slurry to generate a netlike cross-linked structure that changes the microstructure of cement slurry and agglomerates cement particles to increase the movement resistance of cement particles. Finally, the rheological properties and thickening time of cement slurry are deteriorated, and the netlike cross-linked structure is adsorbed on the cement particles surfaces, which reduces the rate of hydration reaction and decreases the compressive strength of cement stone. They seriously endanger the safety operation and cementing quality.
Effects of Ammonium Hydrolyzed Polyacrylonitrile on Oil-Well Cement Slurry
Ammonium hydrolyzed polyacrylonitrile () is a drilling fluid additive usually used in drilling fluids. However, and cement slurry have poor chemical compatibility. When they come into contact with each other, cement slurry can be contaminated, which damages the cementing quality and causes downhole emergency. This paper studies the effects of on the properties of cement slurry, such as thickening time, rheological properties, and compressive strength. This paper combines atomic absorption spectrophotometer, zeta probe potentiostat, and environmental scanning electron microscope (ESEM) to explore the contamination mechanism in cement slurry. The experimental results show that decreases the zeta potential of cement slurry and reduces the electrical property of cement particle surfaces, which causes particles agglomeration. Moreover, reacts with cement slurry to generate a netlike cross-linked structure that changes the microstructure of cement slurry and agglomerates cement particles to increase the movement resistance of cement particles. Finally, the rheological properties and thickening time of cement slurry are deteriorated, and the netlike cross-linked structure is adsorbed on the cement particles surfaces, which reduces the rate of hydration reaction and decreases the compressive strength of cement stone. They seriously endanger the safety operation and cementing quality.
Effects of Ammonium Hydrolyzed Polyacrylonitrile on Oil-Well Cement Slurry
Cheng, Xiaowei (Autor:in) / Liu, Kaiqiang (Autor:in) / Li, Zaoyan (Autor:in) / Wu, Qingmei (Autor:in) / Duan, Wenhui (Autor:in) / Guo, Xiaoyang (Autor:in)
13.04.2017
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Effects of Ammonium Hydrolyzed Polyacrylonitrile on Oil-Well Cement Slurry
| British Library Online Contents | 2017
Effects of Ammonium Hydrolyzed Polyacrylonitrile on Oil-Well Cement Slurry
| Online Contents | 2017
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