井下节流器用气举打捞工具研制与应用  

Development and Application of Gas Lift Fishing Tool

作　　者：肖述琴[1,2] 卫亚明[1,2] 杨旭东[1,2] 于志刚[1,2] 陈勇[1,2] 

机构地区：[1]长庆油田公司油气工艺研究院,西安710018 [2]低渗透油气田勘探开发国家工程实验室,西安710018

出　　处：《石油矿场机械》2013年第2期46-48,共3页Oil Field Equipment

基　　金：国家实用新型专利"天然气开采井下节流器打捞工具及其操作方法"(ZL201210229645.3)

摘　　要：节流器在井下长期工作后,密封胶筒会发生永久变形,使胶筒与井壁间的摩擦力增大。采用传统方法打捞节流器,打捞钢丝绳容易断裂。研制了井下节流器用气举打捞工具,利用气井压力使节流器上行。在73.0mm(2英寸)油管中,1MPa压差可产生约3 000N提拉力。现场应用6口井,打捞成功率达100%,缩短了作业时间,降低了劳动强度和作业成本。With Long-term use of the slip-type downhole throttle in gas-well,the friction becomes larger between its sealant barrel and the wall of the well due to expanded sealant barrel while the slip-type downhole throttle is salvaged. A gas-lift fishing tool which can use energy gas well to lift the slip-type downhole throttle was developed in order to decrease the probability of the salvage wire breakage with traditional salvage methods. The application indicated that this tool could im- prove the success rate of fishing slip-type downhole throttle,and the new tool＇s fishing rate was 100% in 6 wells because 1 MPa pressure difference could produce about 3 000 N pulling force in 73.0 mm （2 7/8 in） tubing. It shows this new tool can shorten the work time and save the manpower.

关 键 词：井下 节流器 打捞工具 气举 

分 类 号：TE933.503[石油与天然气工程—石油机械设备]