CN201650202U - 遇水膨胀封隔器 - Google Patents

遇水膨胀封隔器 Download PDF

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CN201650202U
CN201650202U CN2010201373800U CN201020137380U CN201650202U CN 201650202 U CN201650202 U CN 201650202U CN 2010201373800 U CN2010201373800 U CN 2010201373800U CN 201020137380 U CN201020137380 U CN 201020137380U CN 201650202 U CN201650202 U CN 201650202U
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高国强
谢文献
顾海红
孔利生
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DONGYING RUIFENG PETROLEUM DEVELOPMENT Co Ltd
QINGDAO RUIXIN PETROLEUM EQUIPMENT MANUFACTURING Co Ltd
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Abstract

一种遇水膨胀封隔器,包括上接头、防松销钉、调节环、遇水膨胀胶筒、中心管、下压环、剪钉、接头、下接头、密封圈。所述上接头下顺次与调节环、中心管和接头相连接,调节环下、中心管外顺次安装连接有遇水膨胀胶筒、下压环和下接头。本实用新型具有封隔器坐封可靠,密封效果好,配套性强,可与多种封隔器配套使用,如液压式、支撑式等封隔器;结构简单,制造、维修、使用方便,价格便宜,成本低廉,对存在腐蚀或损伤套管的密封尤其有效等特点,广泛在石油开采井封隔器上应用。

Description

遇水膨胀封隔器 
一、技术领域
本实用新型涉及封隔器,特别涉及一种遇水膨胀封隔器。 
二、背景技术
传统的封隔器密封胶筒,主要由普通橡胶构成,为井下封隔器的配套和使用作出了贡献,但其同时存在如下缺点或不足:在套管存在腐蚀或损伤时,易发生封隔器坐封不严或根本无法坐封的现象,往往导致整个作业失败,造成经济损失。 
三、实用新型内容
本实用新型的目的是提供一种遇水膨胀封隔器,采用压缩式或支撑式封隔器和遇水膨胀胶筒相组合的结构,有效地克服或避免上述现有技术中存在的缺点或不足。 
本实用新型所述的遇水膨胀封隔器,包括上接头、防松销钉、调节环、遇水膨胀胶筒、中心管、下压环、剪钉、接头、下接头、密封圈。所述上接头下顺次与调节环、中心管和接头相连接,调节环下、中心管外顺次安装连接有遇水膨胀胶筒、下压环和下接头。 
其中,所述上接头下内与中心管和接头相连接,外与调节环相连接。所述调节环为一中心开孔的“U”形环状构件,其上部与上接头相连接。所述上接头与调节环的连接处安装有防松销钉。所述下接头安装于中心管和接头外,其上端与下压环相连接。所述下压环下部与接头上部连接处安装有剪钉。所述下压环上安装有密封圈。 
本实用新型与现有技术相比较,具有如下优点: 
1、封隔器坐封可靠,密封效果好,对存在腐蚀或损伤套管的密封尤其有效; 
2、配套性强,可与多种封隔器配套使用,如液压式、支撑式等封隔器; 
3、结构简单,制造、维修、使用方便,价格便宜,成本低廉。 
四、附图说明
附图为本实用新型的一种实施例结构示意图; 
五、具体实施方式
参阅附图,一种遇水膨胀封隔器,包括上接头1、防松销钉2、调节环3、遇水膨胀胶筒4、中心管5、下压环6、剪钉7、接头8、下接头9、密封圈10。上接头1下顺次与调节环3、中心管5和接头8相连接。调节环3下、中心管5外顺次安装连接有遇水膨胀胶筒4、下压环6和下接头9。 
上接头1下内与中心管5和接头8相连接,中心管5外与调节环3相连接。调节环3为一中心开孔的“U”形环状构件,其上部与上接头1相连接。上接头1与调节环3的连接处安装有防松销钉2。下接头9安装于中心管5和接头8外,其上端与下压环6相连接。下压环6下部与接头8上部连接处安装有剪钉7。下压环6上安装有密封圈10。 
使用时,压缩式封隔器控制其坐封压力,支撑式封隔器控制其压缩距,使封隔器未完全坐封,待遇水膨胀胶筒4吸水后自行膨胀坐封,对存在腐蚀或损伤的套管密封尤其有效。 

Claims (7)

1.一种遇水膨胀封隔器,包括上接头、防松销钉、调节环、遇水膨胀胶筒、中心管、下压环、剪钉、接头、下接头、密封圈,其特征在于所述上接头下顺次与调节环、中心管和接头相连接,调节环下、中心管外顺次安装连接有遇水膨胀胶筒、下压环和下接头。
2.根据权利要求1所述的遇水膨胀封隔器,其特征在于所述上接头下内与中心管和接头相连接,外与调节环相连接。
3.根据权利要求1或2所述的遇水膨胀封隔器,其特征在于所述调节环为一中心开孔的“U”形环状构件,其上部与上接头相连接。
4.根据权利要求1或2所述的遇水膨胀封隔器,其特征在于所述上接头与调节环的连接处安装有防松销钉。
5.根据权利要求1所述的遇水膨胀封隔器,其特征在于所述下接头安装于中心管和接头外,其上端与下压环相连接。
6.根据权利要求1或5所述的遇水膨胀封隔器,其特征在于所述下压环下部与接头上部连接处安装有剪钉。
7.根据权利要求1或5所述的遇水膨胀封隔器,其特征在于所述下压环上安装有密封圈。 
CN2010201373800U 2010-03-18 2010-03-18 遇水膨胀封隔器 Expired - Lifetime CN201650202U (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046893A (zh) * 2012-12-26 2013-04-17 安东石油技术(集团)有限公司 复合胶筒封隔器
CN103775020A (zh) * 2014-02-19 2014-05-07 安东石油技术(集团)有限公司 组合式胶筒封隔器
CN109931024A (zh) * 2019-03-14 2019-06-25 河南福侨石油装备有限公司 一种滑道压缩式封隔器
CN109944569A (zh) * 2017-11-27 2019-06-28 李明 一种石油井下作业工具

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046893A (zh) * 2012-12-26 2013-04-17 安东石油技术(集团)有限公司 复合胶筒封隔器
CN103046893B (zh) * 2012-12-26 2015-10-28 安东石油技术(集团)有限公司 复合胶筒封隔器
CN103775020A (zh) * 2014-02-19 2014-05-07 安东石油技术(集团)有限公司 组合式胶筒封隔器
CN109944569A (zh) * 2017-11-27 2019-06-28 李明 一种石油井下作业工具
CN109931024A (zh) * 2019-03-14 2019-06-25 河南福侨石油装备有限公司 一种滑道压缩式封隔器

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