可关闭旋转式泄油器的研制与应用  

Development and application of the closable rotary bleeder

作　　者：李建雄[1] 孙飞[1] 李传乐[1] 赵昕昕[1] 李闯[1] 吴海斌[1] 

机构地区：[1]中原油田采油三厂,山东莘县252435

出　　处：《石油钻采工艺》2015年第5期128-130,共3页Oil Drilling & Production Technology

摘　　要：由于常规泄油器须投杆剪断泄油销钉后泄油,致使对于抽油杆断的油井无法投杆而不能实现泄油,且泄油后不能二次关闭。针对常规泄油器存在的缺陷,借鉴Y221封隔器工作原理,通过对换向机构的理论计算,研制了可关闭旋转式泄油器。该工具采用下放旋转并上提管柱实现泄油功能、再次下放管柱关闭泄油孔的工艺设计,除能在不起抽油杆柱情况下实现泄油外,还可实现泄油器反复开关使用,避免带液体起管柱伤害环境。该工具在中原油田采油三厂进行了室内实验并在泵深为3 000 m以上的油井中进行现场试验,成功率100%,可进一步推广使用。For conventional oil drain device, oil drain can be realized only by dropping a bar to cut off the drain pin. But in oil wellswhere the sucker rod is broken, oil drain cannot be realized because the bar cannot be dropped, and secondary shut-in cannot be achievedafter oil drain. In view of the drawbacks of conventional oil drain devices and by making reference to the working principle of Y221packer, a closable rotary oil drain device has been developed by conducting theoretical calculation of reversing mechanism. This toolis designed to realize oil drain function by lowering the pipe while rotating and picking up the pipe and then closing the drain hole bylowering the string. It is of novel structure, simple in operation and reliable in leakproofness. Except that it can realize oil drain withouttripping out the rod string, it can realize repeated use of switch on the oil drain device, hence avoiding damaging the environment bytripping out the string with liquid. This tool was tested indoor in No. 3 Oil Production Plant in Zhongyuan Oilfield and was field testedin oil wells with pump depth of over 3 000 m. The successful rate was 100%, so it can be further promoted and applied.

关 键 词：泄油器 可关闭 旋转式 断脱抽油杆泄油 

分 类 号：TE931[石油与天然气工程—石油机械设备]