CN2536770Y - 偏ⅲ外加厚油管挂 - Google Patents

偏ⅲ外加厚油管挂 Download PDF

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Publication number
CN2536770Y
CN2536770Y CN 02238401 CN02238401U CN2536770Y CN 2536770 Y CN2536770 Y CN 2536770Y CN 02238401 CN02238401 CN 02238401 CN 02238401 U CN02238401 U CN 02238401U CN 2536770 Y CN2536770 Y CN 2536770Y
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China
Prior art keywords
oil pipe
tubing hanger
utility
model
passage
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Expired - Fee Related
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CN 02238401
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English (en)
Inventor
单智宇
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FUHE MACHINERY MANUFACTURING Co Ltd DAQING CITY
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FUHE MACHINERY MANUFACTURING Co Ltd DAQING CITY
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Abstract

一种油田井下作业用的偏III外加厚油管挂。解决了油管易发生断裂且断裂率高的问题。其特征在于:与偏心距为17mm的通道(2)平行的通道(3)下端用加厚内丝扣(7)连接油管(5)后再接变头(6);在丝扣(7)上部的油管挂(1)壁上开与油管挂(1)垂直的出油口(4)。具有油管断裂率低的特点,油管挂丝扣强度提高到12.5吨,增加了油管挂的安全系数,具有可观的经济效益。

Description

偏III外加厚油管挂
技术领域:
本实用新型涉及油田井下作业的一种油管挂,属于偏III外加厚油管挂。
背景技术:
油田为了满足抽油机井正常生产时测试要求,需要在采油树上同时具有抽油机井环空测试的功能,此时偏III采油树应运产生了。但是使用偏III采油树时,容易造成油管接箍与套管内壁的差距,增加了油管挂与第一根油管连接丝扣根部的弯曲应力,从而使油管易在该处发生断裂,断裂率高,影响生产,劳动量增大。
实用新型内容:
本实用新型的目的是克服上述的不足而提供能能降低油管断裂率的偏III外加厚油管挂。
本实用新型所采用的技术方案是:该偏III外加厚油管挂,由有两直径不同通道构成的油管挂及油管组成,与偏心距为17mm的较小直径通道平行的较大直径通道下端用加厚内丝扣连接油管后再接变头;在丝扣上部的油管挂壁上开与油管挂垂直的出油口。
本实用新型与已有技术相比的有益效果是:由于该油管挂较小通道偏心距为17mm,消除了油管接箍与套管内壁差距的问题,不致在第一根油管连接丝扣根部产生弯曲应力而导致油管断裂,断裂率大大下降;况且通过加厚内丝扣连接油管,这样使得油管挂的丝扣强度提高到12.5吨,增加了油管挂与第一根油管连接丝扣的安全系数。具有可观的经济效益。
附图说明:
图1是本实用新型的结构示意图;
图2是图1的俯视图。
1-油管挂,2-通道,3-通道,4-出油口,5-油管,6-变头,7-加厚内丝扣。
具体实施方式:
下面将结合附图对本实用新型作进一步的说明:
如图1结合图2所示,该偏III外加厚油管挂由油管挂1及油管5组成,油管挂1由有两直径不同通道(3,2)构成,通道2的偏心距为17mm,消除了油管接箍与套管内壁差距的问题,不致在第一根油管连接丝扣根部产生弯曲应力而导致油管断裂。与通道2平行的通道3下端用加厚内丝扣7连接油管5,这样使得油管挂1的丝扣强度提高到12.5吨,增加了油管挂1与第一根油管连接丝扣的安全系数;之后油管5外螺纹接变头6,使得下部油管正常连接;在丝扣7上部的油管挂1壁上开与油管挂1垂直的出油口4,减少了阻力损失,流量更加畅通。可见应用该油管挂1,油管断裂率大大下降,从而可以节省大量工时和维修费用,提高产量。
实际使用时,与常规偏III油管挂使用相同。该油管挂可根据实际需要还可应用在通偏采油树上,效果也很好。

Claims (1)

1、一种油田井下作业用的偏III外加厚油管挂,由有两直径不同通道(3,2)构成的油管挂(1)及油管(5)组成,其特征在于:与偏心距为17mm的通道(2)平行的通道(3)下端用加厚内丝扣(7)连接油管(5)后再接变头(6);在丝扣(7)上部的油管挂(1)壁上开与油管挂(1)垂直的出油口(4)。
CN 02238401 2002-06-06 2002-06-06 偏ⅲ外加厚油管挂 Expired - Fee Related CN2536770Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02238401 CN2536770Y (zh) 2002-06-06 2002-06-06 偏ⅲ外加厚油管挂

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02238401 CN2536770Y (zh) 2002-06-06 2002-06-06 偏ⅲ外加厚油管挂

Publications (1)

Publication Number Publication Date
CN2536770Y true CN2536770Y (zh) 2003-02-19

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Family Applications (1)

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CN 02238401 Expired - Fee Related CN2536770Y (zh) 2002-06-06 2002-06-06 偏ⅲ外加厚油管挂

Country Status (1)

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CN (1) CN2536770Y (zh)

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