CN102808597B - 油管泄油器 - Google Patents

油管泄油器 Download PDF

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CN102808597B
CN102808597B CN201210302411.7A CN201210302411A CN102808597B CN 102808597 B CN102808597 B CN 102808597B CN 201210302411 A CN201210302411 A CN 201210302411A CN 102808597 B CN102808597 B CN 102808597B
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oil
rail groove
lock tube
pin
pipe
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CN102808597A (zh
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易鲁川
郗荣才
郭文峰
郎立术
张晔
杨涛
张顺慈
房环环
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Jiangxi Yixin Pharmaceutical Co ltd
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Abstract

一种油管泄油器,摩擦机构套装在内管的上部,内管下部有泄油孔,密封套覆盖泄油孔,销钉安装在内管上,锁套套装在内管外,锁套上设置竖轨道槽、横轨道槽,销钉后端处于锁套上的横轨道槽里,销钉可以到达锁套上的竖轨道槽里,摩擦机构下端有上凸键,锁套上端有下凸键,摩擦机构处于锁套之上,密封套由剪钉连接在内管上,锁套下部有锥体,锥体上安装卡瓦,卡瓦下部悬挂卡瓦托,卡瓦托的内径小于密封套的外径,卡瓦托的小直径段处于密封套之上,本发明上提油管后旋转油管再上提油管时,卡瓦向外撑开锚在套管内壁上,上提油管的力作用在剪钉上,使剪钉被剪断密封套下行泄油,上提油管的力能保证密封套下行,本发明泄油可靠。

Description

油管泄油器
技术领域
本发明是油田采油用的井下工具,是一种油管泄油器。
背景技术
中国专利申请201020617851.8《油管泄油器》,虽然不需要旋松螺纹,但要靠摩擦机构与套管之间产生的摩擦力使锁套5与内管3产生相对运动才能泄油,在结垢、腐蚀等情况下摩擦机构与套管之间产生的摩擦力不能使锁套5与内管3产生相对运动,所以存在泄油不可靠的问题。
发明内容
本发明的目的是避免现有泄油器的不足,提供一种油管泄油器,靠提油管时旋转后上提油管增大密封套的推力,保证密封套下行实现泄油器的可靠泄油。
本发明的目的是这样实现的:包括内管、摩擦机构、锁套、销钉、密封套,摩擦机构套装在内管的上部,内管下部有泄油孔,密封套覆盖泄油孔,销钉安装在内管上,锁套套装在内管外,锁套上设置竖轨道槽、横轨道槽,竖轨道槽、横轨道槽相通,销钉后端处于锁套上的横轨道槽里,销钉可以到达锁套上的竖轨道槽里,摩擦机构下端有上凸键,锁套上端有下凸键,摩擦机构处于锁套之上,密封套由剪钉连接在内管上,锁套下部有锥体,锥体上安装卡瓦,卡瓦下部悬挂卡瓦托,卡瓦托的内径小于密封套的外径,卡瓦托的小直径段处于密封套之上。
本发明的有益效果是:本发明上提油管后旋转油管再上提油管时,卡瓦向外撑开锚在套管内壁上,上提油管的力作用在剪钉上,使剪钉被剪断密封套下行泄油,上提油管的力能保证密封套下行,因此,本发明泄油可靠。
附图说明
图1是本发明实施例的装配图。
图2是图1中件5的轨道表面展开图。
具体实施方式
下面结合附图对本发明的实施例进行说明。
本发明的实施例包括内管1、摩擦机构2、锁套5、销钉6、锥体7、卡瓦8、卡瓦托9、密封套10、剪钉11,摩擦机构2套装在内管1的上部,内管1下部有泄油孔14,密封套10覆盖泄油孔14,销钉6安装在内管1上,锁套5套装在内管1外,锁套5上设置竖轨道槽12、横轨道槽13,竖轨道槽12、横轨道槽13相通,下井时,销钉6后端处于锁套5上的横轨道槽13里,销钉6可以到达锁套5上的竖轨道槽12里,摩擦机构2下端有上凸键3,锁套5上端有下凸键4,上凸键23、下凸键4扣在一起可以传递扭矩,以便使摩擦机构2固定住锁套5不旋转。上凸键3可以从摩擦机构2上加工出来,也可以另外安装一个部件形成上凸键3,下凸键4可以从锁套5下端面上加工出来,也可以另外安装一个部件形成下凸键4。摩擦机构2处于锁套5之上,密封套10由剪钉11连接在内管1上,以便使下井和油井生产时始终密封泄油孔14,锁套5下部有锥体7,本实施例中锥体7用螺纹连接在锁套5下部,锁套5与锥体7也可以是一体结构(但要改变锁套5上部结构),锥体7上安装卡瓦8,卡瓦8是安装在卡瓦槽里,锥体7上的卡瓦槽为燕尾形,锥体7上的燕尾形槽可以悬挂住卡瓦8(与封隔器结构相同),卡瓦8下部悬挂卡瓦托9(与封隔器结构相同),卡瓦托9的内径小于密封套10的外径,卡瓦托9的小直径段处于密封套10之上,目的是将卡瓦托9上的轴向力传递给密封套10,卡瓦托9可以推着密封套10下行。
为了避免下井过程中卡瓦托9上行出现中途锚定问题,卡瓦托9要限位在内管1上,使卡瓦托9相对于内管1只能下行,不能上行。本实施例中的限位方式如图所示,也可以在内管1上加工变径台肩,使卡瓦托9的上端处于变径台肩之下限位。
摩擦机构2下端与锁套5可以连接成一体,但这种结构摩擦机构2容易磨损套管,因为抽油泵工作过程中产生的管柱蠕动会造成摩擦机构2随管柱一同运动,而摩擦机构2紧紧贴在套管上,所以容易磨损套管,因此,摩擦机构2下端与锁套5上端之间应有一段距离,是为了抽油泵工作过程中产生的管柱蠕动不会造成摩擦机构2随管柱一同运动,摩擦机构2下端与锁套5上端的距离必需大于抽油泵工作过程中产生的管柱蠕动量,才能保证抽油泵工作时摩擦机构2不随管柱一同运动。
摩擦机构2上的摩擦块外径大于套管内径,可随套管内径而变化,在弹簧作用下,摩擦块紧贴套管内壁,与套管之间产生磨擦力。
本发明安装在抽油管柱的抽油泵之上,随油管下入井内,在下井和生产过程中,销钉6均处于处于锁套5上的横轨道槽13里。在需要泄油时,上提油管,使摩擦机构2下端的上凸键3和锁套5上端的下凸键4扣在一起,再旋转油管,内管1旋转,锁套5与摩擦机构2成一体不旋转(靠摩擦机构2与套管之间的摩擦力实现),销钉6在锁套5上的横轨道槽13里运动至锁套5上的竖轨道槽12的下端,再上提油管,内管1上行,销钉6在锁5上的竖轨道槽12里上行,锁套5可不随内管1上行,锥体7也就不上行,密封套10随内管1上行,密封套10就带动卡瓦托9、卡瓦8上行,在锥体7和卡瓦8的锥面作用下,卡瓦8向外撑开并锚定在套管上,继续上提油管,剪钉11被剪断,
密封套10与内管1产生相对运动下行,密封套10不在覆盖内管1下部的泄油孔14,使内管1上的泄油孔14内外联通泄油。密封套10下行后,失去对卡瓦托9的支撑,卡瓦托9、卡瓦8下行,卡瓦8收回,本发明可顺利提出。
内管1有一段厚度较大,为节约材料,可以设计成分体结构。

Claims (1)

1.一种油管泄油器,包括内管(1)、摩擦机构(2)、锁套(5)、销钉(6)、密封套(10),摩擦机构(2)套装在内管(1)的上部,内管(1)下部有泄油孔(14),密封套(10)覆盖泄油孔(14),销钉(6)安装在内管(1)上,锁套(5)套装在内管(1)外,锁套(5)上设置竖轨道槽(12)、横轨道槽(13),竖轨道槽(12)、横轨道槽(13)相通,销钉(6)后端处于锁套(5)上的横轨道槽(13)里,销钉(6)可以到达锁套(5)上的竖轨道槽(12)里,摩擦机构(2)下端有上凸键(3),锁套(5)上端有下凸键(4),摩擦机构(2)处于锁套(5)之上,其特征是:密封套(10)由剪钉(11)连接在内管(1)上,锁套(5)下部有锥体(7),锥体(7)上安装卡瓦(8),卡瓦(8)下部悬挂卡瓦托(9),卡瓦托(9)的内径小于密封套(10)的外径,卡瓦托(9)的小直径段处于密封套(10)之上。
CN201210302411.7A 2012-08-17 2012-08-17 油管泄油器 Active CN102808597B (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700782A (en) * 1986-11-07 1987-10-20 Dresser Industries, Inc. Flow control valve for use in oil and gas wells and the like
CN101148977A (zh) * 2007-10-10 2008-03-26 白霞 一种油管泄油器
CN101275461A (zh) * 2007-03-27 2008-10-01 白霞 分离式提油管泄油器
CN201391284Y (zh) * 2009-03-27 2010-01-27 天津市大港区龙新石油机械制造有限公司 多功能泄油器
CN201843584U (zh) * 2010-11-10 2011-05-25 白霞 油管泄油器
CN202090894U (zh) * 2011-06-09 2011-12-28 中国石油天然气股份有限公司 卡瓦提拉式泄油器
CN202767946U (zh) * 2012-08-17 2013-03-06 易鲁川 油管泄油器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700782A (en) * 1986-11-07 1987-10-20 Dresser Industries, Inc. Flow control valve for use in oil and gas wells and the like
CN101275461A (zh) * 2007-03-27 2008-10-01 白霞 分离式提油管泄油器
CN101148977A (zh) * 2007-10-10 2008-03-26 白霞 一种油管泄油器
CN201391284Y (zh) * 2009-03-27 2010-01-27 天津市大港区龙新石油机械制造有限公司 多功能泄油器
CN201843584U (zh) * 2010-11-10 2011-05-25 白霞 油管泄油器
CN202090894U (zh) * 2011-06-09 2011-12-28 中国石油天然气股份有限公司 卡瓦提拉式泄油器
CN202767946U (zh) * 2012-08-17 2013-03-06 易鲁川 油管泄油器

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