CN202176312U - Decompression kelly cock valve - Google Patents

Decompression kelly cock valve Download PDF

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Publication number
CN202176312U
CN202176312U CN 201120294898 CN201120294898U CN202176312U CN 202176312 U CN202176312 U CN 202176312U CN 201120294898 CN201120294898 CN 201120294898 CN 201120294898 U CN201120294898 U CN 201120294898U CN 202176312 U CN202176312 U CN 202176312U
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CN
China
Prior art keywords
valve
body
decompression
kelly cock
ball
Prior art date
Application number
CN 201120294898
Other languages
Chinese (zh)
Inventor
李长海
Original Assignee
李长海
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.)
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Publication date
Application filed by 李长海 filed Critical 李长海
Priority to CN 201120294898 priority Critical patent/CN202176312U/en
Application granted granted Critical
Publication of CN202176312U publication Critical patent/CN202176312U/en

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Abstract

A decompression kelly cock valve relates to petroleum machinery, in particular to a decompression kelly cock valve capable of decompressing pressure in a drilling tool through a decompressing device on a valve wall. The decompression kelly cock valve comprises a body (1), an upper valve base (2), a lower valve base (3), a ball valve (4) and an opening portion (5) for opening the ball valve (4). The upper end face of the upper valve base (2) is fixedly connected with the inside of the body (1) through a clamping device, a contact face where the upper valve base (2) is matched with the ball valve (4) and a contact face where the lower valve base (3) is matched with the ball valve (4) are closely connected through a spring butting against a clamping table on the inner wall of the body, a decompression hole (6) arranged on a wall of the body (1) below the ball valve (4) is communicated with an inner cavity of the body (1), and a screwed plug (7) is threaded inside the decompression hole (6). The decompression kelly cock valve can decompress the pressure in the drilling tool through the decompression hole on a valve wall and has the advantages of being simple in structure, convenient to operate and safe and reliable.

Description

可泄压方钻杆旋塞阀 Relief can kelly cock

技术领域 FIELD

[0001] 本实用新型涉及石油机械,具体涉及一种可通过阀壁上的泄压装置将钻具内压力释放出来的可泄压方钻杆旋塞阀。 [0001] The present invention relates to petroleum machinery, in particular to a drilling tool can be released through the pressure relief valve means may be relief wall kelly cock.

背景技术 Background technique

[0002] 方钻杆旋塞阀可分为方钻杆上旋塞阀和方钻杆下旋塞阀,钻井液可无压降地自由流过方钻杆旋塞阀。 [0002] kelly cock can be divided into upper kelly cock and lower kelly cock, no drilling fluid can freely flow through the drop kelly cock. 可用作钻杆安全阀,或者装在方钻杆以上控制防喷,或者装在方钻杆下部,当方钻杆卸下时防止钻井液流失。 Drill pipe may be used as a safety valve, mounted on the kelly or control over BOP, or installed in a lower portion of the kelly, to prevent loss of drilling fluid when the kelly removed.

[0003] 目前各厂家生产的方钻杆旋塞阀多采用球阀结构,用固定上阀座和球阀的自动压力平衡结构,使阀体在额定工作压力下,借助阀上部压力自动平衡高的油气井压力,而使阀开关自如。 [0003] At present the manufacturers use more kelly cock valve structure, the structure of the automatic pressure balance valve seat and a ball fixing the valve body at a rated working pressure, the upper valve means self-balancing high pressure oil and gas wells pressure, the valve switch freely. 但井下压力超过时,旋塞阀关闭后很难开启,当压力达到或超过20MPa以上时,旋塞阀根本不能打开。 But when the pressure exceeds the underground, turn off the stopcock is difficult to open when the pressure reaches or exceeds 20MPa or more, plug valves can not be opened. 也就是说如果发生井涌或井喷,且井下压力过大时,旋塞阀虽然控制住了井涌或井喷,但却不能把钻具内的压力释放出来,为后续工作提供帮助,只能通过其他方式强行泄压,这是相当危险的,很难保证油田工人的生命安全。 That is if kick or blowout, and downhole pressure too much happened, although the stopcock under control well kick or blowout, but not the pressure in the drill released, assist the follow-up, only through other way relief force, which is quite dangerous, difficult to ensure the safety of oil field workers.

发明内容 SUMMARY

[0004] 本实用新型所要解决的技术问题是:提供一种可泄压方钻杆旋塞阀。 [0004] The present invention is to solve the technical problem are: to provide a pressure relief kelly cock.

[0005] 本实用新型的技术解决方案是:它包括本体、上阀座、下阀座、球阀及开启球阀的开启部,上阀座的上端面通过与卡嵌装置连接固定在本体内,上阀座及下阀座与球阀相配合的接触面通过抵在本体内壁卡台上的弹簧相紧密连接,所述本体于球阀下方的壁上设有泄压孔与本体内腔连通,泄压孔内螺接有丝堵。 [0005] The present invention is a technology solution: it comprises a body, a valve seat, the valve seat, opening the ball valve and opening the ball valve portion of the end surface on the valve seat is connected by fixed-engagement means within the body, the and the lower valve seat cooperating with the ball into close contact surface against the body via the inner wall of the card stage spring, said body wall is provided below the ball valve in communication with the pressure relief holes in the body cavity relief holes the plugs is screwed.

[0006] 本实用新型的技术效果是:它可通过阀壁上的泄压孔将钻具内压力释放出来,具有结构简单、便于操作及安全可靠的特点。 [0006] The technical effect of the present invention are: it can be released by the tool internal pressure relief valve hole wall, it has a simple structure, easy to operate and safe and reliable.

附图说明 BRIEF DESCRIPTION

[0007] 图1为本实用新型的半剖结构图。 [0007] FIG. 1 is a half sectional configuration diagram novel present invention. 具体实施方式 Detailed ways

[0008] 如图1所示,它包括本体1、上阀座2、下阀座3、球阀4及开启球阀4的开启部5, 上阀座2的上端面通过与卡嵌装置连接固定在本体1内,上阀座2及下阀座3与球阀4相配合的接触面通过抵在本体内壁卡台上的弹簧相紧密连接,所述本体1于球阀4下方的壁上设有泄压孔6与本体1内腔连通,泄压孔6内螺接有丝堵7。 [0008] As shown in FIG 1, which comprises a main body 1, the valve seat 2, the opening portion of the valve seat 53, ball valve 4 and opening the ball valve 4, the upper end surface of the valve seat 2 is connected by fixing means fitted in the card the body 1, the valve seat 2 and the lower valve seat 3 with the ball valve 4 cooperates with a contact surface abutting tightly connected by an inner wall of the body spring card table, the relief on the wall of the body 1 is provided below the ball 4 hole 6 communicates with the lumen of the body 1, the pressure relief hole 6 is screwed plugs 7.

[0009] 所述泄压孔6为内口直径小于外口直径的孔。 [0009] The pressure relief port holes 6 of a diameter smaller than the inner diameter of the bore mouth.

[0010] 所述泄压孔6开孔于下阀座3的下缘处。 [0010] The pressure release hole 6 at the lower edge of the opening 3 of the valve seat.

[0011] 改进后的旋塞阀,具有可泄压功能,如果遇到旋塞阀由于井压关闭后很难开启的情况,可以打开泄压装置进行泄压,待压力减小后,用专业搬手按要求转动90°,即可实现开启,为处理井喷后续工作提供了简单、及时和必要的措施。 [0011] The improved plug valve, having a pressure relief, if due to circumstances encountered stopcock closed after the well pressure is difficult to open, and can open the pressure relief device to relieve pressure, the pressure to be reduced, with the specialized wrench required rotated 90 °, to achieve open, provides a simple, timely and necessary follow-up measures well blowout.

Claims (3)

1.可泄压方钻杆旋塞阀,包括本体(1)、上阀座(2)、下阀座(3)、球阀(4)及开启球阀(4)的开启部(5),上阀座(2)的上端面通过与卡嵌装置连接固定在本体(1)内,上阀座(2) 及下阀座(3)与球阀(4)相配合的接触面通过抵在本体内壁卡台上的弹簧相紧密连接,其特征在于,所述本体(1)于球阀(4)下方的壁上设有泄压孔(6)与本体(1)内腔连通,泄压孔(6)内螺接有丝堵(7)。 1. relief kelly cock can, comprising a body (1), the valve seat (2), the seat (3), the ball valve (4) and open the ball valve (4) of the opening portion (5), the valve the facing seat (2) is connected and fixed to the card body by insert means (1), the seat (2) and the lower valve seat (3) and the ball (4) cooperating by abutting contact surface of the inner wall of the card body stage spring with tight junctions, characterized in that the body (1) is provided with pressure relief holes (6) of the body (1) a lumen in communication with the ball valve (4) below the wall, the pressure relief hole (6) It is screwed the plug (7).
2.如权利要求1所述的可泄压方钻杆旋塞阀,其特征在于,所述泄压孔(6)为内口直径小于外口直径的孔。 2. As can be relief kelly cock according to claim 1, wherein said pressure relief opening (6) of the mouth opening diameter smaller than the outer diameter of the hole.
3.如权利要求1或2所述的可泄压方钻杆旋塞阀,其特征在于,所述泄压孔(6)开孔于下阀座(3)的下缘处。 Can kelly cock or the relief of claim 12, wherein said pressure relief hole (6) opening at a valve seat (3) at the lower edge.
CN 201120294898 2011-08-15 2011-08-15 Decompression kelly cock valve CN202176312U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120294898 CN202176312U (en) 2011-08-15 2011-08-15 Decompression kelly cock valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120294898 CN202176312U (en) 2011-08-15 2011-08-15 Decompression kelly cock valve

Publications (1)

Publication Number Publication Date
CN202176312U true CN202176312U (en) 2012-03-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120294898 CN202176312U (en) 2011-08-15 2011-08-15 Decompression kelly cock valve

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CN (1) CN202176312U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179734A (en) * 2015-10-21 2015-12-23 大连瑞亨机械制造有限公司 High-strength and high-pressure kelly cock valve
CN105840138A (en) * 2016-05-31 2016-08-10 成都国光电子仪表有限责任公司 Natural gas blowout control diverter valve
CN105840139A (en) * 2016-05-31 2016-08-10 成都国光电子仪表有限责任公司 Anticorrosive fluid director for natural gas
CN105840140A (en) * 2016-05-31 2016-08-10 成都国光电子仪表有限责任公司 Anti-corrosion diversion structure
CN105863558A (en) * 2016-05-31 2016-08-17 成都国光电子仪表有限责任公司 Anti-corrosion flow guide device for well hole
CN106014333A (en) * 2016-05-31 2016-10-12 成都国光电子仪表有限责任公司 Natural gas blowout-control and flow-guiding device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179734A (en) * 2015-10-21 2015-12-23 大连瑞亨机械制造有限公司 High-strength and high-pressure kelly cock valve
CN105840138A (en) * 2016-05-31 2016-08-10 成都国光电子仪表有限责任公司 Natural gas blowout control diverter valve
CN105840139A (en) * 2016-05-31 2016-08-10 成都国光电子仪表有限责任公司 Anticorrosive fluid director for natural gas
CN105840140A (en) * 2016-05-31 2016-08-10 成都国光电子仪表有限责任公司 Anti-corrosion diversion structure
CN105863558A (en) * 2016-05-31 2016-08-17 成都国光电子仪表有限责任公司 Anti-corrosion flow guide device for well hole
CN106014333A (en) * 2016-05-31 2016-10-12 成都国光电子仪表有限责任公司 Natural gas blowout-control and flow-guiding device

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