CN202900129U - 一种油田井下作业井口法兰 - Google Patents

一种油田井下作业井口法兰 Download PDF

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Publication number
CN202900129U
CN202900129U CN201220542315.5U CN201220542315U CN202900129U CN 202900129 U CN202900129 U CN 202900129U CN 201220542315 U CN201220542315 U CN 201220542315U CN 202900129 U CN202900129 U CN 202900129U
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China
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flange
well head
oil pipe
oil field
shoulder
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Expired - Fee Related
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CN201220542315.5U
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English (en)
Inventor
王峰
尹国君
陈强
王海成
范传雷
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

一种油田井下作业井口法兰,其特征是主体(1)的内管壁上加工有可安装油管挂的台肩(2),上法兰(3)的侧壁上安装有用于安装油管挂的顶丝(5)。由于本实用新型安装在井口1号主阀之上,能够利用1号主阀封堵套管,从而能够安装带压作业设备并进行带压作业施工。该装置内部有用于悬挂油管挂的台肩,能够悬挂生产油管。

Description

一种油田井下作业井口法兰
技术领域:本实用新型涉及一种油田井下作业装备,特别是用于采气井的一种油田井下作业井口法兰。
背景技术:本实用新型前,大规模压裂后采用套管生产、井筒内无生产油管的采气井带压完井作业尚无安全有效方法对井下套管进行封堵。
发明内容:本实用新型的目的是:为油田大规模压裂后采用套管生产的采气井带压后作业提供一种油田井下作业井口法兰,安装该装置后可利用1号主阀安全封堵生产套管。该装置设有油管挂接口,可悬挂完井生产油管。
本实用新型的目的是通过以下措施来实现的:一种油田井下作业井口法兰,包括带有上法兰、下法兰的短管形主体,其特征是主体的内管壁上加工有可安装油管挂的台肩,上法兰的侧壁上安装有用于安装油管挂的顶丝。
附图说明:图1为油田井下作业井口法兰的结构示意图。
具体实施方式:油田井下作业井口法兰包括带有上法兰3、下法兰4的短管形主体1,主体1的内管壁上加工有可安装油管挂的台肩2,上法兰3的侧壁上安装有用于安装油管挂的顶丝5。
油田井下作业井口法兰的工作原理和使用方法是:压裂气井投产前,应先将本装置通过下法兰螺栓6安装于关闭的井口1号主阀之上,利用1号主阀封堵套管,从而通过上法兰3及螺栓7安装带压作业设备并带压下入完井管柱。

Claims (1)

1.一种油田井下作业井口法兰,包括带有上法兰、下法兰的短管形主体,其特征是:主体的内管壁上加工有可安装油管挂的台肩,上法兰的侧壁上安装有用于安装油管挂的顶丝。
CN201220542315.5U 2012-10-23 2012-10-23 一种油田井下作业井口法兰 Expired - Fee Related CN202900129U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220542315.5U CN202900129U (zh) 2012-10-23 2012-10-23 一种油田井下作业井口法兰

Applications Claiming Priority (1)

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CN201220542315.5U CN202900129U (zh) 2012-10-23 2012-10-23 一种油田井下作业井口法兰

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CN202900129U true CN202900129U (zh) 2013-04-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104234657A (zh) * 2014-09-23 2014-12-24 江苏金石科技有限公司 双限位金属密封油管悬挂器
CN109252848A (zh) * 2018-11-29 2019-01-22 美钻深海能源科技研发(上海)有限公司 一种生产和压裂两用的分体式上法兰

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104234657A (zh) * 2014-09-23 2014-12-24 江苏金石科技有限公司 双限位金属密封油管悬挂器
CN109252848A (zh) * 2018-11-29 2019-01-22 美钻深海能源科技研发(上海)有限公司 一种生产和压裂两用的分体式上法兰

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130424

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CF01 Termination of patent right due to non-payment of annual fee