CN2656633Y - 侧钻小井眼深穿透带导向头射孔器 - Google Patents

侧钻小井眼深穿透带导向头射孔器 Download PDF

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Publication number
CN2656633Y
CN2656633Y CN 200320107074 CN200320107074U CN2656633Y CN 2656633 Y CN2656633 Y CN 2656633Y CN 200320107074 CN200320107074 CN 200320107074 CN 200320107074 U CN200320107074 U CN 200320107074U CN 2656633 Y CN2656633 Y CN 2656633Y
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gun
gun body
guide head
deep penetration
perforator
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Inventor
刘景三
赵磊
张丁涌
常国胜
王西武
白钢
范存良
刘雪青
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Sinopec Shengli Oilfield Co Xianhe Oil Production Plant
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Sinopec Shengli Oilfield Co Xianhe Oil Production Plant
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Abstract

本实用新型涉及油田井下作业工具,特别是一种侧钻小井眼深穿透带导向头射孔器。其技术方案是包括枪身体、弹架、射孔弹、导向头、及导火索等,所述枪身体空心结构,弹架上装配射孔弹、及导火索等穿入枪身体内腔,枪身体下端装配导向头。改进之处包括枪身体下端装配导向头为流线型光滑防遇阻结构,枪身体采用为Φ68-70mm,弹架上装配射孔弹为改进装药结构的射孔弹。本实用新型与现有技术相比较有以下优点:1.解决了大套管内下入部分小套管所形成变经点,使现有射孔器遇阻的问题;2.解决了采用63型无枪身射孔器,不但易破坏套管,而且弹壳全部掉入井内,给后期冲砂作业带来安全隐患的问题。

Description

侧钻小井眼深穿透带导向头射孔器
一、技术领域:本实用新型涉及油田井下作业工具,特别是一种侧钻小井眼深穿透带导向头射孔器。
二、背景技术:现有射孔器,包括枪身体、弹架、射孔弹、导向头、及导火索等组成。枪身体为大口径结构,枪身体下端装配的导向头为截面梯形结构。其有存在的问题是:1、由于侧钻小井眼是在原井眼大套管内,通过开窗侧钻下入部分小套管然后丢手而形成的,大套管内下入部分小套管所形成变经点往往是现有射孔器的遇阻点;2、由于开窗侧钻下入的部分小套管内通经受限制偏小,现有射孔器口径大的下不去;3、采用63型无枪身射孔器,不但易破坏套管,而且弹壳全部掉入井内,给后期冲砂作业带来安全隐患。
三、发明内容:本实用新型就是针对现有射孔器存在的技术问题,提供一种适合于侧钻小井眼的侧钻小井眼深穿透带导向头射孔器,做到下井少遇阻,射穿套管、水泥环及污染带沟通油层。
本实用新型的技术方案是包括枪身体、弹架、射孔弹、导向头、及导火索等,所述枪身体空心结构,弹架上装配射孔弹、及导火索等穿入枪身体内腔,枪身体下端装配导向头。改进之处包括枪身体下端装配导向头为流线型光滑防遇阻结构,枪身体采用为Φ68-70mm,弹架上装配射孔弹为改进装药结构的射孔弹。
本实用新型与现有技术相比较有以下优点:1、由于采用了枪身体下端装配导向头为流线型光滑防遇阻结构,解决了大套管内下入部分小套管所形成变经点,使现有射孔器遇阻的问题;2、解决了采用63型无枪身射孔器,不但易破坏套管,而且弹壳全部掉入井内,给后期冲砂作业带来安全隐患的问题。
四、附图说明:附图为本实用新型安装结构示意图。
五、具体实施方式
参看附图,侧钻小井眼深穿透带导向头射孔器,包括枪身体1、弹架2、射孔弹3、导向头4、及导火索5等,所述枪身体1为空心结构,弹架2上装配射孔弹3、及导火索5后,穿入枪身体1内腔,枪身体下端装配导向头4。枪身体1下端装配的导向头4为流线型光滑防遇阻结构;枪身体为Φ68-70mm,弹架上装配射孔弹为改进装药结构的射孔弹。这样导向头在经过大套管内下入部分小套管所形成变经点时,不会发生卡堵,同时枪身体的孔径缩小,便于射孔器顺利下入。

Claims (2)

1、一种侧钻小井眼深穿透带导向头射孔器,包括枪身体、弹架、射孔弹、导向头、及导火索,所述枪身体空心结构,弹架上装配射孔弹、及导火索,穿入枪身体内腔,枪身体下端装配导向头,其特征是:所述导向头为流线型光滑防遇阻结构。
2、根据权利要求1所述的侧钻小井眼深穿透带导向头射孔器,其特征是:所述枪身体为Φ68-70mm。
CN 200320107074 2003-11-14 2003-11-14 侧钻小井眼深穿透带导向头射孔器 Expired - Fee Related CN2656633Y (zh)

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CN 200320107074 CN2656633Y (zh) 2003-11-14 2003-11-14 侧钻小井眼深穿透带导向头射孔器

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CN 200320107074 CN2656633Y (zh) 2003-11-14 2003-11-14 侧钻小井眼深穿透带导向头射孔器

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