CN101705800B - 防脱悬挂装置 - Google Patents

防脱悬挂装置 Download PDF

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CN101705800B
CN101705800B CN2009102301587A CN200910230158A CN101705800B CN 101705800 B CN101705800 B CN 101705800B CN 2009102301587 A CN2009102301587 A CN 2009102301587A CN 200910230158 A CN200910230158 A CN 200910230158A CN 101705800 B CN101705800 B CN 101705800B
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suspension joint
cylindrical shell
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offing
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CN101705800A (zh
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孙吉红
于学信
袁长忠
许海玲
姚燕
靳宝军
吴家松
李臣
李元闯
敖立敏
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Dongying Baihua Petroleum Technology Development Co., Ltd.
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Abstract

一种防脱悬挂装置，外悬挂接头的内螺纹与筒体上部外螺纹连接，伸缩管穿过外悬挂接头，伸缩管下部有内悬挂接头，内悬挂接头处于筒体内外悬挂接头有内端面，外悬挂接头上的内螺纹为左旋螺纹，筒体上部的外螺纹为左旋螺纹，外悬挂接头上有右旋外螺纹，筒体上有右旋螺纹，内防脱套内螺纹与筒体上的右旋螺纹连接，外悬挂接头下端面顶住内防脱套上端面，外防脱套下部台肩挂在内防脱套下端面上，外防脱套上部右旋内螺纹与外悬挂接头上的右旋外螺纹连接，内防脱套下端面顶住外防脱套下部台肩面。外悬挂接头的内螺纹与筒体上部外螺纹连接处不会脱扣，筒体以下的设备不会落井，避免工程事故发生，具有显著的经济效益。

Description

防脱悬挂装置
技术领域：
本发明是石油开采用井下设备，是一种防脱悬挂装置。
已有技术：
油田抽油井下用有一些悬挂装置，如热采井用的补偿器，注水井里用的伸缩管，捞砂时用的捞砂泵都要采用悬挂装置。在起下悬挂装置时外悬挂接头与筒体螺纹连接得容易脱落，造成工程事故，产生重大经济损失。
发明内容：
本发明的目的是提供一种防脱悬挂装置，外悬挂接头与筒体螺纹连接处不会脱扣落井。
本发明的目的是这样实现的：有伸缩管、外悬挂接头、筒体、内悬挂接头，外悬挂接头的内螺纹与筒体上部外螺纹连接，伸缩管穿过外悬挂接头，伸缩管下部有内悬挂接头，内悬挂接头处于筒体内，内悬挂接头外径大于外悬挂接头的最小内径，外悬挂接头有内端面，外悬挂接头上的内螺纹为左旋螺纹，筒体上部的外螺纹为左旋螺纹，外悬挂接头上有右旋外螺纹，筒体上有右旋螺纹，筒体上的右旋螺纹的底径大于筒体上部的外螺纹的外径，内防脱套内螺纹与筒体上的右旋螺纹连接，外悬挂接头下端面顶住内防脱套上端面，外防脱套下部台肩挂在内防脱套下端面上，外防脱套上部右旋内螺纹与外悬挂接头上的右旋外螺纹连接，内防脱套下端面顶住外防脱套下部台肩面。
本发明的有益效果：外悬挂接头下端面顶住内防脱套上端面，内防脱套下端面顶住外防脱套下部台肩面，外悬挂接头的内螺纹与筒体上部外螺纹连接处不会脱扣，筒体以下的设备不会落井，避免工程事故发生，具有显著的经济效益。
附图说明：
附图1是本发明实施例的装配半剖图。
附图2是附图1中件2的半剖图。
附图3是附图1中件5的半剖图。
具体实施方式：
下面结合附图对本发明实施例进行说明。
由伸缩管1、外悬挂接头2、内防脱套3、外防脱套4、筒体5、内悬挂接头6组成。外悬挂接头2的内螺纹与筒体5上部外螺纹连接，伸缩管1穿过外悬挂接头2，伸缩管1下部有内悬挂接头6，内悬挂接头6处于筒体5内，内悬挂接头6外径大于外悬挂接头2的最小内径，外悬挂接头2有内端面8，外悬挂接头2上的内螺纹9为左旋螺纹，筒体5上部的外螺纹7为左旋螺纹，外悬挂接头2上有右旋外螺纹，筒体5上有右旋螺纹10，筒体5上的右旋螺纹10的底径大于筒体5上部的外螺纹7的外径，内防脱套3内螺纹与筒体5上的右旋螺纹10连接，外悬挂接头2下端面顶住内防脱套3上端面，外防脱套4下部台肩挂在内防脱套3下端面上，外防脱套4上部右旋内螺纹与外悬挂接头2上的右旋外螺纹连接，内防脱套3下端面顶住外防脱套4下部台肩面。
由于外悬挂接头2上的内螺纹9为左旋螺纹，筒体5上部的外螺纹7为左旋螺纹，两者连接处如有脱扣趋势所产生的卸脱扣力矩会是外防脱套4上部右旋内螺纹与外悬挂接头2上的右旋外螺纹连接的上紧力矩，由于外悬挂接头2下端面顶住内防脱套3上端面，内防脱套3下端面顶住外防脱套4下部台肩面，因此，上紧力矩不会使外防脱套4上部右旋内螺纹与外悬挂接头2上的右旋外螺纹连接再上扣，也就不能使外悬挂接头2的内螺纹与筒体5上部外螺纹连接处卸扣，所以，外悬挂接头的内螺纹与筒体上部外螺纹连接处不会脱扣，从而实现本发明的目的。

Claims (1)

1.一种防脱悬挂装置，有伸缩管(1)、外悬挂接头(2)、筒体(5)、内悬挂接头(6)，外悬挂接头(2)的内螺纹与筒体(5)上部外螺纹连接，伸缩管(1)穿过外悬挂接头(2)，伸缩管(1)下部有内悬挂接头(6)，内悬挂接头(6)处于筒体(5)内，内悬挂接头(6)外径大于外悬挂接头(2)的最小内径，外悬挂接头(2)有内端面(8)，其特征是：外悬挂接头(2)上的内螺纹(9)为左旋螺纹，筒体(5)上部的外螺纹(7)为左旋螺纹，外悬挂接头(2)上有右旋外螺纹，筒体(5)上有右旋螺纹(10)，筒体(5)上的右旋螺纹(10)的底径大于筒体(5)上部的外螺纹(7)的外径，内防脱套(3)内螺纹与筒体(5)上的右旋螺纹(10)连接，外悬挂接头(2)下端面顶住内防脱套(3)上端面，外防脱套(4)下部台肩挂在内防脱套(3)下端面上，外防脱套(4)上部右旋内螺纹与外悬挂接头(2)上的右旋外螺纹连接，内防脱套(3)下端面顶住外防脱套(4)下部台肩面。
CN2009102301587A 2009-11-18 2009-11-18 防脱悬挂装置 Active CN101705800B (zh)

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Publication number Priority date Publication date Assignee Title
CN103062176B (zh) * 2013-01-06 2016-08-03 陈庆元 一种摄影器材上的伸缩管防脱锁紧装置
CN110359863A (zh) * 2018-02-01 2019-10-22 西南石油大学 一种用于旋转导向工具的防落井悬挂装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2849162Y (zh) * 2005-10-03 2006-12-20 周远斌 注汽井热伸缩器
CN2864078Y (zh) * 2005-12-16 2007-01-31 新疆石油管理局钻井工艺研究院 分支井斜向器定位用封隔器
CN201024940Y (zh) * 2007-04-04 2008-02-20 大港油田集团有限责任公司 内藏式旋转尾管悬挂器
CN101135234A (zh) * 2006-08-31 2008-03-05 白霞 螺杆泵采油管柱防脱器
CN101161981A (zh) * 2007-11-29 2008-04-16 中国石油天然气集团公司 液压机械双作用膨胀式尾管悬挂器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2849162Y (zh) * 2005-10-03 2006-12-20 周远斌 注汽井热伸缩器
CN2864078Y (zh) * 2005-12-16 2007-01-31 新疆石油管理局钻井工艺研究院 分支井斜向器定位用封隔器
CN101135234A (zh) * 2006-08-31 2008-03-05 白霞 螺杆泵采油管柱防脱器
CN201024940Y (zh) * 2007-04-04 2008-02-20 大港油田集团有限责任公司 内藏式旋转尾管悬挂器
CN101161981A (zh) * 2007-11-29 2008-04-16 中国石油天然气集团公司 液压机械双作用膨胀式尾管悬挂器

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