聚合物驱及三元驱地面管线清洗技术研究

Polymer Flooding and ASP Flooding Ground Pipeline Cleaning Technology

通过对目前聚合物驱及三元驱地面管线结垢趋势的分析,研制了利用“空穴效应”原理工作的管线除垢器及配套工具。除垢器是依据能够产生最理想的“空穴效应”功能来设计的,靠空穴效应对垢质的剧烈冲击振动和高压水射流作用来实现彻底清洗管线的目的。通过大量的室内实验和现场试验,找到了适合三元驱的叶片材质即65Mn弹簧钢;过盈量为3~8mm,压差为2~4 MPa时,空穴效应最强,除垢效果最好。研究的配套接收、发射装置采用特制的三通球阀,其内通径可达到65mm,承压为4MPa,电子定位装置由电子定位发射机和电子定位接收机组成,可实现最终精确定位到10cm。现场应用表明,除垢器可有效解决聚合物驱及三元驱管线结垢堵塞的问题。

Through the analysis on the scaling trend of polymer flooding and ASP flooding ground pipelines,this paper developed pipeline scale remover and matching tools on the basis of the principle of whole effect".The scale remover was designed relying on the optimal function of“hole effect”,and achieved the goal of cleaning pipelines completely by means of violent shock and vibration as well as high-pressure water jet.The blade material,i.e.65Mn spring steel,was found to fit for ASP flooding by a large number of indoor experiments and field tests.It was found that the hole effect peaked and the scale removing result was the best when the amount of interference was 3?8 mm and the pressure difference was 2?4 MPa.Specific three-way ball valve was used to manufacture systematic receiving and transmitting devices,of which the internal diameter could reach 65 mm and resist to pressure as high as 4 MPa.The electronic positioning device consisted of positioning transmitter and electronic positioning receiver,and it could realize precise positioning of 10cm.Field application showed that the scale remove could effectively solve the pipeline scaling problem of polymer flooding and ASP flooding.