摘要
针对高压管汇在压裂作业时内壁受冲蚀作用导致磨损破裂失效的问题,基于固液两相流和冲蚀磨损理论,利用FLUENT软件研究了高压管汇内壁的冲蚀磨损率和冲蚀离散量分布规律,分析了高压管汇的弯管段曲率半径、弯曲度和管汇内壁直径对管汇冲蚀磨损规律。研究结果表明:高压管汇的弯管出口处发生冲蚀磨损最严重,离散量集中分布在弯管处至直管出口处,而在直管段冲蚀磨损率很小;随着管汇的内壁直径、弯管曲率半径和弯管段弯曲度的增大,管汇的最大冲蚀磨损率和平均冲蚀磨损率减小;随着进口流速的增加,管汇的最大冲蚀磨损率和平均冲蚀磨损率增大。研究结果可为高压管汇的失效、预防以及安全防护提供参考依据。
In view of the problem that the inner wall of the high-pressure manifold is damaged by erosion dur-ing the fracturing operation, the erosive wear rate and the erosion dispersion distribution of the inner wall of the high-pressure manifold are studied using FLUENT software based on the solid-liquid two-phase flow and the erosive wear theory. The influence of the bend curvature radius, bend curvature and the inner diameter of the high-pressure manifold on the erosive wear of the manifold were analyzed. The results show that the erosive wear is the most seri-ous at the outlet of the bend of the high-pressure manifold. The discrete distribution is concentrated at the bend to the outlet of the straight pipe. The erosion wear rate in the straight pipe is very small. With the increase of the in-ner diameter, the curvature radius of the bend and the bend curvature, the maximum and the average erosion wear rate of the manifold decrease. With the increase of the inlet flow velocity, the maximum and the average erosion wear rate increases. The results can provide references for the failure, failure prevention and protection of high- pressure manifold.
出处
《石油机械》
北大核心
2018年第2期84-88,共5页
China Petroleum Machinery
关键词
高压管汇
冲蚀磨损
压裂
曲率半径
弯曲度
内壁直径
FLUENT
high-pressure manifold
erosion wear
fracturing
radius of curvature
curvature
inner wall di-ameter
FLUENT
