油气固井纤维水泥浆性能研究

来源 :石油科学(英文版) | 被引量 : 0次 | 上传用户:renrenxiaonei
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Based on a carbon fiber cement slurry system developed in the previous work, the relationship between the carbon fiber and the performance of the cement slurry was experimentally investigated. Results show that the use of fiber has no effect on the slurry rheological mode, but influences its rheological behavior. When the fiber proportion ranges from 0.12% to 0.19% and the fiber length from 400 to 1,400 μm, the slurry rheological behavior can be improved. Under the normal pressure, the use of fiber can shorten the thickening time of the cement slurry. When the proportion of the constant-length fiber increases, the water loss of the cement slurry decreases first and then increases, and when the fiber length increases (the fiber proportion being kept constant), the water loss shows the same trend. This indicates that there are optimal values for the fiber length and proportion, which vary under the experimental conditions in the following respective ranges: 0.12%-0.37% and 700-1,400 μm.
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