雾化加注天然气减阻剂减阻效果的数值评价  

Numerical assessment on performance of atomized gas drag reduction agents(DRA)

作　　者：赵珂珂 郝天宇 李传宪[2] 

机构地区：[1]辛国石油集团工程设计有限责任公司北京分公司,北京100085 [2]中国石油大学(华东)储运与建筑工程学院,山东青岛266555

出　　处：《油气储运》2015年第10期1055-1061,共7页Oil & Gas Storage and Transportation

基　　金：国家自然基金项目“球状纳米SiO2对聚丙烯酸酯类含蜡原油降凝剂性能调控机理研究”,51204202;中国石油大学(华东)研究生创新项目“天然气管道减阻剂加注工艺研究”,S12-38

摘　　要：为了优化天然气减阻剂加注工艺,若因试验条件所限,无法通过室内环道对模拟管段的工艺流程进行试验验证,则可以利用软件模拟方法对减阻剂的减阻效果进行评价,同时分析减阻剂减阻效果对各影响参数的敏感性。模拟结果表明:减阻剂雾滴沉积浓度对喷雾压差的变化最为敏感;喷射角度和管径对沉积浓度的影响具有一定的相关性,当喷射角度较大时,沉积浓度对管径的变化更为敏感,而当管径较大时,沉积浓度对喷射角度的变化也更为敏感。模拟结果可为天然气减阻剂的工程实际应用提供一定的理论指导。To optimize the atomized adding process of gas drag reduction additive （DRA）, software simulation can be used to assess performance of the DRA if it is not possible to verify processes in simulated pipeline section in laboratory due to restricted conditions. In addition, such software can also be used to determine the susceptibility of DRA performance to influencing factors. The results show that deposition concentration of DRA drops is most sensitive to changes in atomizing differential pressure. Furthermore, spraying angle and pipe diameter present certain impacts to deposition concentration - when the spraying angle is large, the deposition concentration is more sensitive to changes in pipeline diameter; when the pipeline diameter is large, the deposition concentration is more sensitive to changes in spraying angles. Relevant simulation results may provide necessary theoretical guidance for on-site application of gas DRA. （7 Figures, 6 Tables, 16 References）

关 键 词：天然气减阻剂 减阻效果 数值模拟 敏感性 

分 类 号：TE822[石油与天然气工程—油气储运工程]