CN201695957U - 一种钻杆 - Google Patents

一种钻杆 Download PDF

Info

Publication number
CN201695957U
CN201695957U CN2010201650682U CN201020165068U CN201695957U CN 201695957 U CN201695957 U CN 201695957U CN 2010201650682 U CN2010201650682 U CN 2010201650682U CN 201020165068 U CN201020165068 U CN 201020165068U CN 201695957 U CN201695957 U CN 201695957U
Authority
CN
China
Prior art keywords
pipe body
drill rod
external screw
annular groove
screw thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010201650682U
Other languages
English (en)
Inventor
翟华
张广江
孙红州
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD.
Original Assignee
ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO Ltd filed Critical ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO Ltd
Priority to CN2010201650682U priority Critical patent/CN201695957U/zh
Application granted granted Critical
Publication of CN201695957U publication Critical patent/CN201695957U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Earth Drilling (AREA)

Abstract

本实用新型公开了一种钻杆，包括钻杆管体，钻杆管体前端设有外螺纹，外螺纹根部有台肩，钻杆管体后端设有与前端外螺纹匹配的内螺纹，台肩面上设置有环形凹槽。本实用新型中，台肩面上设置有环形凹槽，使用时，在环形凹槽内安装密封件，两根钻杆通过螺纹连接，提高了两根钻杆对接处的密封性能，可以使高压水等介质通过钻杆时中途无泄漏无压力损失，以实现高压冲孔或旋切。

Description

一种钻杆
技术领域
本实用新型属于煤炭开采设备领域，具体涉及一种钻杆。
背景技术
煤炭开采过程中，存在诸多高瓦斯高应力地质单元，煤层透气性能差，钻孔瓦斯抽放半径小，钻孔瓦斯流量衰减系数大，抽放煤层瓦斯难度大。为解决煤与瓦斯突出问题，需要对钻孔采取增透卸压措施，以缩短钻孔抽放时间，提高抽放效果。而钻孔增透卸压措施多采用高压水为介质，普通钻杆密封性能差，沿程压力及流量损失大。
实用新型内容
本实用新型的目的是提供一种密封性能好的钻杆。
为达到上述目的，本实用新型采用的技术方案是：
一种钻杆，包括钻杆管体，钻杆管体前端设有外螺纹，外螺纹根部有台肩，钻杆管体后端设有与前端外螺纹匹配的内螺纹，台肩面上设置有环形凹槽。
外螺纹与内螺纹的配合面为锥形。
本实用新型中，台肩面上设置有环形凹槽，使用本实用新型时，在环形凹槽内安装密封件，两根钻杆通过螺纹连接，提高了两根钻杆对接处的密封性能，可以使高压水等介质通过钻杆时中途无泄漏无压力损失，以实现高压冲孔或旋切。
附图说明
图1为本实用新型结构示意图。
具体实施方式
如图1所示，一种钻杆，包括钻杆管体4，钻杆管体4前端设有外螺纹1，外螺纹1根部有台肩2，钻杆管体4后端设有与前端外螺纹1匹配的内螺纹5，台肩2面上设置有环形凹槽3。
外螺纹1与内螺纹5的配合面为锥形。
使用本实用新型时，在环形凹槽3内装入密封件，通过外螺纹1和内螺纹5连接，两根钻杆能够实现快速对接，两根钻杆对接处的密封性能高。

Claims (2)

1.一种钻杆，包括钻杆管体，钻杆管体前端设有外螺纹，外螺纹根部有台肩，钻杆管体后端设有与前端外螺纹匹配的内螺纹，其特征在于，台肩面上设置有环形凹槽。
2.如权利要求1所述的钻杆，其特征在于，外螺纹与内螺纹的配合面为锥形。
CN2010201650682U 2010-04-21 2010-04-21 一种钻杆 Expired - Fee Related CN201695957U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201650682U CN201695957U (zh) 2010-04-21 2010-04-21 一种钻杆

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201650682U CN201695957U (zh) 2010-04-21 2010-04-21 一种钻杆

Publications (1)

Publication Number Publication Date
CN201695957U true CN201695957U (zh) 2011-01-05

Family

ID=43397197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201650682U Expired - Fee Related CN201695957U (zh) 2010-04-21 2010-04-21 一种钻杆

Country Status (1)

Country Link
CN (1) CN201695957U (zh)

Similar Documents

Publication Publication Date Title
CN202380985U (zh) 一种管状气密封螺纹接头
CN203978313U (zh) 高压水输送器
CN204312891U (zh) 石油油管接头
CN203685057U (zh) 石油钻杆
CN201635666U (zh) 高压水密封钻杆
CN204226909U (zh) 高压水回转接头
CN201695957U (zh) 一种钻杆
CN201891391U (zh) 高压输水钻杆用密封连接结构
CN204152452U (zh) 高抗扭高密封变扣螺纹接头
CN203297087U (zh) 高效防护抽油装置
CN203201491U (zh) 金属气密封旋肩式钻杆接头
CN203175417U (zh) 一种焊接钻铤
CN204782834U (zh) 一种新型连续管外卡瓦连接器
CN202228827U (zh) 真空管接头
CN205173763U (zh) 压缩机管口快换接头
CN204419059U (zh) 钻杆接头
CN203655175U (zh) 气密封螺纹接头
CN203129973U (zh) 小规格钻杆
CN204252918U (zh) 一种采油井口装置
CN205189775U (zh) 一种控压钻井用的双壁钻杆
CN205422560U (zh) 一种外加厚高真空隔热油管
CN204920824U (zh) 一种石油钻具用圆柱面密封螺纹结构
CN205297418U (zh) 一种油管泄油锚定器
CN202117579U (zh) 一种高压密封钻杆
CN204082030U (zh) 一种气密封套管螺纹接头

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD.

Free format text: FORMER NAME: ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Micun Fangshan village in Xinmi City, Henan province 452394

Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD.

Address before: Micun Fangshan village in Xinmi City, Henan province 452394

Patentee before: Zhengzhou Yuanjian Coal Mine Equipment Co., Ltd.

C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: Xinmi City Town Village 452370 meters persimmon Bay Henan city of Zhengzhou Province

Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD.

Address before: Micun Fangshan village in Xinmi City, Henan province 452394

Patentee before: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD.

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

Granted publication date: 20110105

Termination date: 20180421