摘要
胜利海上油田累计开发时间长达26 a,部分平台采油井进入开采后期,出砂严重,油田管线寿命缩短,可能发生原油泄漏事故。针对平台连接输送管中的含砂冲蚀现象进行了分析探讨。使用CFD数值分析方法,考虑油气水三相流体与砂粒之间的相互作用,获得了该管道在不同输送量和含沙量下的砂粒流动特性及其对管壁的腐蚀特性。结果表明:砂粒堆积主要发生在管道弯头的外侧区域。冲蚀率随着输液量的增加而增大,冲蚀范围也同时增加。相同输液量条件下,冲蚀率随着含砂率的增加而增大,但对冲蚀范围无明显影响。
The cumulative production time of Shengli Offshore Oilfield has been as long as 26 years,and some platform production wells has entered the late stage of production,and sand production has been severe,which may shorten the life of oilfield pipelines and cause crude oil leakage accidents.The phenomenon of sand-bearing erosion in the conveying pipe connected to the platform was analyzed and discussed.Using CFD numerical analysis method,considering the interaction between oil,gas and water three-phase fluid and sand,the sand flow characteristics and the corrosion characteristics of the pipe wall under conditions of different conveyance and sand content of the pipeline were obtained.The results showed that sand accumulation mainly occurred in the outer area of the pipe elbow.The erosion rate increased with the increase of the infusion volume,and the erosion range also increased at the same time.Under the same infusion volume condition,the erosion rate increased with the increase of the sand content,but it had no obvious effect on the erosion range.
作者
王潜龙
荆波
龚俊
李丙贤
翁羽
WANG Qianlong;JING Bo;GONG Jun;LI Bingxian;WEN Yu(School of Petroleum Engineering,Xi′an Shiyou University,Xi’an 710065,China;Haiyang Oil Production Plant of SINOPEC Shengli Oilfield,Dongying 257237,China)
出处
《腐蚀与防护》
CAS
北大核心
2022年第2期34-38,共5页
Corrosion & Protection
基金
陕西省科学技术发展项目(2014k08-27)
陕西省教育厅重点实验室科研计划(15JS086)。
关键词
海上油田
输送管
油气水三相流
冲蚀
offshore oil field
pipeline
three phase flow
erosion
