Hybrid effect of basalt fiber and carbon fiber on the mechanical properties and microstructure of oil well cement

2021 ◽  
Vol 286 ◽  
pp. 122696
Author(s):  
Weiguo Zhang ◽  
Yunlong Zhang ◽  
Baochang Liu
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Basalt Fiber ◽  
Oil Well ◽  
Hybrid Effect ◽  
Oil Well Cement ◽  
Well Cement

scholarly journals Hybrid Effect of Wollastonite Fiber and Carbon Fiber on the Mechanical Properties of Oil Well Cement Pastes

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Jianglin Zhu ◽  
Jiangxiong Wei ◽  
Qijun Yu ◽  
Mingbiao Xu ◽  
Yuwei Luo
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Carbon Fiber ◽  
Impact Strength ◽  
Flexural Strength ◽  
Cement Stone ◽  
Oil Well ◽  
Cement Slurry ◽  
Oil Well Cement ◽  
Well Cement

Oil well cement is a type of natural brittle material that cannot be used directly in cementing operations. Fiber is a type of material that can effectively improve the strength and toughness of cement stone, and hybrid fiber materials can more effectively improve the performance of a cement sample. To overcome the natural defects of oil well cement, the new mineral fiber, i.e., wollastonite fiber, and common carbon fiber were used in oil well cement, and the micromorphology, mechanical properties, and stress-strain behavior of the cement were evaluated. The experimental results show that carbon fiber and wollastonite fiber are randomly distributed in the cement paste. The mechanical properties of the cement paste are improved by bridging and pulling out. The compressive strength, flexural strength, and impact strength of cement stone containing only carbon fiber or wollastonite fiber are higher than those of the pure cement, but too many fibers are not conducive to the development of mechanical properties. A mixture of 0.3% carbon fiber with 6% wollastonite fiber in oil well cement slurry results in a greater increase in compressive strength, flexural strength, and impact strength. In addition, compared with blank cement stone, the strain of the mixed cement stone increases substantially, and the elastic modulus decreases by 37.8%. The experimental results supply technical support for the design of a high-performance cement slurry system.

Mechanical properties of high-ferrite oil-well cement used in shale gas horizontal wells under various loads

2022 ◽  
Vol 319 ◽  
pp. 126067
Author(s):  
Gaoyin Zhang ◽  
Zhiqiang Wu ◽  
Xiaowei Cheng ◽  
Xialan Sun ◽  
Chunmei Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shale Gas ◽  
Horizontal Wells ◽  
Oil Well ◽  
Oil Well Cement ◽  
Well Cement
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