CN2821148Y - Double path cock valve - Google Patents
Double path cock valve Download PDFInfo
- Publication number
- CN2821148Y CN2821148Y CN 200520034033 CN200520034033U CN2821148Y CN 2821148 Y CN2821148 Y CN 2821148Y CN 200520034033 CN200520034033 CN 200520034033 CN 200520034033 U CN200520034033 U CN 200520034033U CN 2821148 Y CN2821148 Y CN 2821148Y
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- Prior art keywords
- valve
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- hole
- joint
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 8
- 210000000664 rectum Anatomy 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
本实用新型涉及用于石油钻井过程中的一种双通道旋塞阀，主要由上接头、锥阀座、锥阀芯、上阀座、万向节、阀球、下阀座、固定环、下接头、侧通道、主通道等组成，其特征在于，由上接头的内孔、阀球的通孔和下接头的内孔组成第一通道(即大直径通道)，由固定环上的径向孔、环形槽、上接头上的通道和锥阀座内通道一起构成第二通道(即小直径通道)。本实用新型由于在结构上增设了一个小通径的可开启、关闭的第二通道，不仅保持了现有旋塞阀的功能，而且即使在高压下也无需外加压力源引入阀球上部即可轻便地打开旋塞阀，解决了现有旋塞阀在高压下因旋转阀球的负载力矩太大而难于将阀打开的问题。
The utility model relates to a double-channel plug valve used in the oil drilling process, which mainly consists of an upper joint, a cone valve seat, a cone valve core, an upper valve seat, a universal joint, a valve ball, a lower valve seat, a fixed ring, a lower Composed of joints, side channels, main channels, etc., it is characterized in that the first channel (that is, the large-diameter channel) is composed of the inner hole of the upper joint, the through hole of the valve ball and the inner hole of the lower joint, and the radial direction on the fixing ring The hole, the annular groove, the channel on the upper joint and the channel in the cone valve seat together form a second channel (ie a small diameter channel). Because the utility model adds a small-diameter second channel that can be opened and closed, it not only maintains the function of the existing plug valve, but also does not need an external pressure source to introduce the upper part of the valve ball even under high pressure. The cock valve can be opened accurately, which solves the problem that the existing cock valve is difficult to open the valve under high pressure because the load torque of the rotating valve ball is too large.
Description
Technical field
The utility model relates to the plug valve that is used for Process of Oil Well Drilling.
Background technology
In the drilling process of high-pressure oil-gas well, when strata pressure during greater than drilling well liquid columnpressure, formation fluid might enter in the well drilling fluid, causes overflow even blowout, must in time control.At present both at home and abroad the oil field be used for blowout prevention in the drilling rod the upper and lower plug valve of instrument kelly bar under high pressure (or claiming single channel plug valve) be difficult to open after closing, in case blowout in the drilling rod takes place in the process of making a trip, to cause great threat to the safety of personnel and rig, even the consequence of bringing on a disaster property.
The utility model content:
The purpose of this utility model is to provide a kind of binary channels plug valve, substitute original kelly cock, in drilling rod occurring, can rob the upper end that is contained in drill string during blowout, controlling drilling fluid effectively sprays in drilling rod, reduce the catastrophic effect that blowout out of control brings, connect simultaneously easily valve to be opened behind the kelly bar and continue follow-up drillng operation.
For reaching above-mentioned technical purpose, the technical solution adopted in the utility model is: a passage control that will have plug valve now changes large and small two passages control into, come the pressure reduction of balance cock ball front and back by the unlatching passage aisle, thereby can open plug valve master (greatly) passage easily.
A kind of binary channels plug valve, mainly form by top connection, conical valve base, poppet valve core, upper valve base, universal joint, valve ball, lower valve base, retainer ring, lower contact, wing passage, main channel etc., it is characterized in that, form first passage (being the major diameter passage) by the endoporus of top connection, the through hole of valve ball and the endoporus of lower contact, constitute the second channel (being smaller diameter passage) that to open, close by passage in the radial hole on the retainer ring, cannelure, the top connection and conical valve base internal channel together.
The utility model structurally also is provided with the one way valve of a little latus rectum, can back down steel ball with the dedicated pipe joint fluid in the drilling tool is introduced pressure meter, detects the pressure of drilling tool inner fluid, for follow-up kill job provides reference data.
Compared with prior art, the utility model has structurally been set up the second channel of opening, closing of a little latus rectum, this passage aisle is a relation in parallel with the main channel, thereby not only kept the function of existing plug valve, introduce the plug valve of opening that valve ball top can be light even under high pressure also need not the impressed pressure source, solved existing plug valve and under high pressure be difficult to problem that valve is opened too greatly because of the loading moment of rotation valve ball.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to Fig. 1, a kind of binary channels plug valve, mainly form by top connection 1, conical valve base 2, poppet valve core 3, upper valve base 4, universal joint 5, valve ball 6, lower valve base 7, retainer ring 8, lower contact 9, wing passage a, main channel b etc., it is characterized in that, form first passage (being the major diameter passage) by the endoporus of top connection 1, the through hole of valve ball 6 and the endoporus of lower contact 9, constitute the second channel (being smaller diameter passage) that to open, close by wing passage a in the radial hole on the retainer ring 8, cannelure, the top connection 1 and conical valve base 2 internal channels together.
The utility model in use, top connection 1 is connected with kelly bar, lower contact 9 and drilling rod upper end is connected, drives valve balls 6 by rotation universal joint 5 and revolves together and turn 90 degrees ball inner via hole and main channel b formation path.The state that this uses when being normal drilling well.Make universal joint 5 drive valve ball 6 reverse rotation 90 degree together, then passage b is disconnected, thereby stop flowing of drilling tool inner fluid, so can control blowout in the drilling tool.For follow-up kill-job drillng operation, connect kelly bar after, need open the main channel, the workman can be directly drives balls 6 with instrument rotation universal joint 5 and rotate together and open the main channel when the drilling rod internal pressure is low; When the drilling rod internal pressure is higher, the workman changes motionless universal joint, can rotate poppet valve core 3 this moment earlier opens cone valve, wing passage a in the radial hole of the lower flow process retainer ring 8 of valve ball 6 and cannelure, the top connection 1, the top that the conical valve base endoporus enters valve ball 6, the pressure reduction of the upper and lower part of balance valve ball 6 gradually, the moment that rotation valve ball 6 is needed becomes less, and then the rotation universal joint can be opened the main channel easily.
The utility model also is provided with the one way valve of a little latus rectum, described one way valve is made up of unidirectional valve seat 10, steel ball 11, spring 12, space in the one way valve is communicated with wing passage a, can back down steel ball with the dedicated pipe joint fluid in the drilling tool is introduced pressure meter, detects the pressure of drilling tool inner fluid.
Claims (2)
1 one kinds of binary channels plug valves, mainly form by top connection (1), conical valve base (2), poppet valve core (3), upper valve base (4), universal joint (5), valve ball (6), lower valve base (7), retainer ring (8), lower contact (9), wing passage (a), main channel (b) etc., it is characterized in that, form first passage by the endoporus of top connection (1), the through hole of valve ball (6) and the endoporus of lower contact (9), constitute the second channel that to open, close together by wing passage (a) in the radial hole on the retainer ring (8), cannelure, the top connection (1) and conical valve base (2) internal channel.
2 plug valves as claimed in claim 1 is characterized in that, also are provided with an one way valve, and described one way valve is made up of unidirectional valve seat (10), steel ball (11), spring (12), and the space in the one way valve is communicated with wing passage (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034033 CN2821148Y (en) | 2005-04-25 | 2005-04-25 | Double path cock valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034033 CN2821148Y (en) | 2005-04-25 | 2005-04-25 | Double path cock valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821148Y true CN2821148Y (en) | 2006-09-27 |
Family
ID=37017702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034033 Expired - Fee Related CN2821148Y (en) | 2005-04-25 | 2005-04-25 | Double path cock valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821148Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821478A (en) * | 2014-03-06 | 2014-05-28 | 西南石油大学 | Plug valve with pressure balance function |
| CN105003682A (en) * | 2015-07-30 | 2015-10-28 | 盐城市大冈石油工具厂有限责任公司 | Pressure-regulating self-opened plug valve |
| CN109488783A (en) * | 2018-12-27 | 2019-03-19 | 成都海猛石油机械有限公司 | A kind of switch cock valve with pressure and application method |
| CN117005819A (en) * | 2023-10-07 | 2023-11-07 | 牡丹江通用石油工具有限公司 | Kelly no-pressure-difference switchable plug valve |
-
2005
- 2005-04-25 CN CN 200520034033 patent/CN2821148Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821478A (en) * | 2014-03-06 | 2014-05-28 | 西南石油大学 | Plug valve with pressure balance function |
| CN105003682A (en) * | 2015-07-30 | 2015-10-28 | 盐城市大冈石油工具厂有限责任公司 | Pressure-regulating self-opened plug valve |
| CN105003682B (en) * | 2015-07-30 | 2017-06-30 | 盐城市大冈石油工具厂有限责任公司 | Pressure regulation self-opening type plug valve |
| CN109488783A (en) * | 2018-12-27 | 2019-03-19 | 成都海猛石油机械有限公司 | A kind of switch cock valve with pressure and application method |
| CN117005819A (en) * | 2023-10-07 | 2023-11-07 | 牡丹江通用石油工具有限公司 | Kelly no-pressure-difference switchable plug valve |
| CN117005819B (en) * | 2023-10-07 | 2024-01-09 | 牡丹江通用石油工具有限公司 | Kelly no-pressure-difference switchable plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 |