摘要
钢丝作业多应用于气井作业中,井内气体压力过大会导致钢丝工具下行时被气流倒托至井口防喷盒,给钢丝作业带来困难。结合钢丝作业操作过程,研究气体动力学及阻力分析,模拟钢丝工具在井内下行过程,得到仪器周围环空速度、压力分布情况,分析不同井口压力下钢丝工具受到的气体阻力,进而拟合出压力与仪器下行阻力数学关系式,在解决仪器下行问题方面起到重要作用,节约人力物力,最大程度的利于现场作业。
Steel line is often used in gas wells, higher gas pressure can cause wire tools to be poured to well blowout box, which will bring many difficulties for wire operation. Based on the process of wire line operation, its gas dynamics was studied and the resistance was analyzed. Through simulating the descending process of steel wire tools by computational fluid dynamics software, cloud drawings of velocity and pressure around the instrument were obtained. Gas resistance of steel wire tools under different head pressure was analyzed. Then mathematical relationship between the wellhead pressure and instrument downward resistance was fitted.
出处
《当代化工》
CAS
2016年第5期1058-1061,共4页
Contemporary Chemical Industry
关键词
钢丝作业
井内下行
数值模拟
wire operation
well downward
numerical simulation
