CN103277068A - Oil well casing pipe exhaust valve - Google Patents
Oil well casing pipe exhaust valve Download PDFInfo
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- CN103277068A CN103277068A CN2013101894219A CN201310189421A CN103277068A CN 103277068 A CN103277068 A CN 103277068A CN 2013101894219 A CN2013101894219 A CN 2013101894219A CN 201310189421 A CN201310189421 A CN 201310189421A CN 103277068 A CN103277068 A CN 103277068A
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- valve body
- steel ball
- oil well
- spring
- valve
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Abstract
The invention provides an oil well casing pipe exhaust valve which comprises an exhaust pipe, a screw rod, a screwed plug, a valve body, a spring, a steel ball and a sealing piece, wherein the exhaust pipe is a tubular body with a built-in thread, and the exhaust pipe is connected with the valve body vertically and fixedly; the valve body is provided with an air hole which is communicated with a pipe hole of a casing pipe after the casing pipe is connected with the valve body; the two ends of the valve body are respectively provided with an inner thread, one end of the valve body is connected with the screwed plug through one inner thread, and the other end of the valve body is connected with an outer thread of the casing pipe through the other inner thread; one end of the screwed plug is provided with an outer thread and is connected with the valve body, and the other end of the screwed plug is provided with an inner thread and is meshed with the screw rod; a pressing head is arranged at the top of the end portion of the screw rod, the longitudinal section of the pressing head is of a T shape, the pressing head presses the spring which presses the steel ball, and the steel ball is placed in a steel ball base on the valve body when the spring is in a contraction state; a plurality of scale values are marked on the screw rod. The oil well casing pipe exhaust valve achieves quantitative pressure regulation, achieves the goal that a valve of the casing pipe is automatically closed and stops exhaust in the production process of an oil well, and is high in safety.
Description
Technical field
The present invention relates to a kind of oil well casing vent valve, belong to the petroleum machinery technical field.
Background technology
During petroleum industry machine pumpingh well is produced at present, sleeve pipe outlet valve mainly simple plug heads on a spring and steel ball is realized, the execute-in-place pressure regulation does not have quantification, all by means of sensation and experience, but sensation and experience are slippery, operation site can the time ejection accident generation of pressure regulation plug arranged, cause the well site to pollute and casualty accident, in case have an accident, on-the-spot most people dare not operate by rule of thumb, influence oil well production.How can quantize pressure regulation, to need not the people even for closing, can easily realize stopping venting, be the problem of the present invention's research.If working pressure sensor and control device certainly will cause the cost waste, and in the oil drilling industry, site environment are abominable,, can often damage if there is not environment preferably for electronic product.
Summary of the invention
The invention provides a kind of oil well casing vent valve, be a kind of structure of Purely mechanical, can overcome the above defective.The realization pressure regulation quantizes, and can realize oil well production process middle sleeve automatic-closing valve, stops venting, is the very high vent valve of a kind of safety.
For solving above technical problem, the invention provides following technical scheme: a kind of oil well casing vent valve, described vent valve mainly comprises stack, screw mandrel, plug, valve body, spring, steel ball and seal, described stack is the tubular body of built-in screw thread, and stack is connected with the valve body vertical fixing; Pore is arranged on the valve body, this pore be connected the rear sleeve pore and communicate; Described two ends of valve body has internal thread, and by this internal thread, an end of valve body connects plug, and the other end is connected in the external screw thread of sleeve pipe; Plug one end has external screw thread and is connected with valve body, and the other end has internal thread and screw mandrel engagement; The end top set of screw mandrel has pressure head, and the pressure head longitudinal section is the T font, pressure head compacting spring, and spring compacting steel ball, under the spring contraction state, the steel ball seat of steel ball set on valve body; Described screw mandrel is marked with a plurality of scale values.
Further, described screw mandrel top connection handle.
Further, each scale value spacing is 1cm.
Further, the outside of described steel ball seat has sleeve, the end top set sleeve end face of sleeve pipe.
This oil well casing vent valve that the present invention relates to, rotary handle, handle drives screw mandrel and rotates, and the screw mandrel rotation moves ahead, the top set pressure head, pressure head namely presses spring, and spring is shunk, and the gas that comes out in the sleeve pipe body is pressed on the steel ball, because pressure is bigger, press steel ball and leave steel ball seat, gas is discharged from valve body pore and stack, realizes pressure release.When gas pressure reduces gradually, the gap between steel ball and steel ball seat reduces, and the pressure release ability reduces, and when air pressure is reduced to the elastic force that is less than or equal to spring, steel ball cuts out under the effect of spring.
Description of drawings
Fig. 1 is oil well casing vent valve structural representation of the present invention.
The specific embodiment
As shown in Figure 1, oil well casing vent valve structure chart.Though the structure of valve body structure of the present invention and common valve body has a lot of similar parts, reference mark on the screw mandrel of this vent valve can easily be realized quantitative pressure regulation, and this process is as having used pressure sensor.Can't guarantee its application life as electronic device at the more abominable scene of environment, so the design of this method has brought unexpected beneficial effect.
The sleeve pipe vent valve is made up of valve body 1, plug 2, spring 7, steel ball 8, screw mandrel 3, stack 10, seal 5 etc., outside this accessory connection and the oil well casing.By the rotary handle set pressure, after the gas in the sleeve pipe reached set pressure, the steel ball 8 of vent valve was opened automatically, and air-flow is by the pore of valve body 1; After stream pressure weakened gradually, the end top set of screw mandrel 3 had pressure head 6, and steel ball leaves steel ball seat 11 under the effect of spring force 7, realized closing automatically.
As shown in the figure, be to improve the control of valve body internal pressure, between sleeve pipe 12 and the valve body 1, be equipped with sealing device between screw mandrel 3 and the valve body 1, the outside of steel ball seat 11 has sleeve 9, end top set sleeve 9 end faces of sleeve pipe 12.This vent valve can realize quantitatively regulating pressure, and plug 2 and leading screw 3 relative separation can bear the sealing load of 25Mpa, and the pressure regulation data of demarcation are arranged on the leading screw 3.
The sleeve pipe vent valve is twisted plug by pipe wrench and is let out casing pressure, may exist and unscrew the situation of laying down plug, and vent valve promotes spring by rotary screw rod and realizes cutting out and opening, and screw mandrel 3 tops connect handle 4, so this vent valve is easy to operate.Screw mandrel on the pressure regulation automatic air valve is marked with scale, and each scale is 1cm, and the distance that therefore can quantitative record moves realizes having the pressure release of control by rotary screw rod for the sleeve pipes of different sizes.Existing gas bleeder valve exists contained spring to open difficulty, can not reach expection let out the casing pressure purpose, and this sleeve pipe vent valve switch is flexible, it is obvious to let out the casing pressure effect.
This oil well casing vent valve that the present invention relates to is mainly used in petroleum industry, and oil gas well manufacturing process middle sleeve automatic vent can be realized the level pressure discharging by adjusting pressuring handle, and safety is higher.
The specific embodiment of the present invention does not constitute the restriction to the application's scope; every within the spirit and principle of the present invention design, any modification that one of skill in the art can make, be equal to and replace and improvement etc. all should be included within protection scope of the present invention.
Claims (3)
1. an oil well casing vent valve is characterized in that, described vent valve mainly comprises stack, screw mandrel, plug, valve body, spring, steel ball and seal, and described stack is the tubular body of built-in screw thread, and stack is connected with the valve body vertical fixing; Pore is arranged on the valve body, this pore be connected the rear sleeve pore and communicate; Described two ends of valve body has internal thread, and by this internal thread, an end of valve body connects plug, and the other end is connected in the external screw thread of sleeve pipe; Plug one end has external screw thread and is connected with valve body, and the other end has internal thread and screw mandrel engagement; The end top set of screw mandrel has pressure head, and the pressure head longitudinal section is the T font, pressure head compacting spring, and spring compacting steel ball, under the spring contraction state, the steel ball seat of steel ball set on valve body; Described screw mandrel is marked with a plurality of scale values.
2. oil well casing vent valve according to claim 1 is characterized in that, described screw mandrel top connects handle.
3. oil well casing vent valve according to claim 1 is characterized in that, the outside of described steel ball seat has sleeve, the end top set sleeve end face of sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101894219A CN103277068A (en) | 2013-05-21 | 2013-05-21 | Oil well casing pipe exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101894219A CN103277068A (en) | 2013-05-21 | 2013-05-21 | Oil well casing pipe exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103277068A true CN103277068A (en) | 2013-09-04 |
Family
ID=49059672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101894219A Pending CN103277068A (en) | 2013-05-21 | 2013-05-21 | Oil well casing pipe exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103277068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821438B (en) * | 2019-12-09 | 2024-04-05 | 天津轻工职业技术学院 | Blowout preventer for rod-driven screw pump oil extraction system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO912959L (en) * | 1991-04-03 | 1992-10-05 | Cooper Ind Inc | SHAFT LOCK OR MANUAL OPERATION. |
| CN2343335Y (en) * | 1997-10-20 | 1999-10-13 | 新疆石油管理局采油工艺研究院 | Sleeve air-release valve |
| CN201218081Y (en) * | 2008-06-11 | 2009-04-08 | 中国石油天然气股份有限公司 | Sleeve pipe constant pressure air release valve |
| CN201474664U (en) * | 2009-06-03 | 2010-05-19 | 新疆精工刀具机械设备有限公司 | Pressure-adjustable gas safety recovery unit |
| CN201943656U (en) * | 2011-02-25 | 2011-08-24 | 徐桂艳 | Anti-theft air-release valve |
| CN102418497A (en) * | 2011-12-15 | 2012-04-18 | 中国石油集团西部钻探工程有限公司 | Spring sheet type pressure release valve |
| CN202381037U (en) * | 2011-11-25 | 2012-08-15 | 中国石油天然气股份有限公司 | Oil well casing constant pressure air release valve |
| CN203239283U (en) * | 2013-05-21 | 2013-10-16 | 新疆力信油田工程技术有限公司 | Vent valve of oil well casing |
-
2013
- 2013-05-21 CN CN2013101894219A patent/CN103277068A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO912959L (en) * | 1991-04-03 | 1992-10-05 | Cooper Ind Inc | SHAFT LOCK OR MANUAL OPERATION. |
| CN2343335Y (en) * | 1997-10-20 | 1999-10-13 | 新疆石油管理局采油工艺研究院 | Sleeve air-release valve |
| CN201218081Y (en) * | 2008-06-11 | 2009-04-08 | 中国石油天然气股份有限公司 | Sleeve pipe constant pressure air release valve |
| CN201474664U (en) * | 2009-06-03 | 2010-05-19 | 新疆精工刀具机械设备有限公司 | Pressure-adjustable gas safety recovery unit |
| CN201943656U (en) * | 2011-02-25 | 2011-08-24 | 徐桂艳 | Anti-theft air-release valve |
| CN202381037U (en) * | 2011-11-25 | 2012-08-15 | 中国石油天然气股份有限公司 | Oil well casing constant pressure air release valve |
| CN102418497A (en) * | 2011-12-15 | 2012-04-18 | 中国石油集团西部钻探工程有限公司 | Spring sheet type pressure release valve |
| CN203239283U (en) * | 2013-05-21 | 2013-10-16 | 新疆力信油田工程技术有限公司 | Vent valve of oil well casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821438B (en) * | 2019-12-09 | 2024-04-05 | 天津轻工职业技术学院 | Blowout preventer for rod-driven screw pump oil extraction system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Duan Shifeng Inventor after: Dong Qing Inventor after: Dong Bin Inventor after: Liu Yi Inventor after: Zhou Feng Inventor after: Shi Shuo Inventor after: Li Shuyin Inventor before: Duan Shifeng Inventor before: Dong Bin Inventor before: Liu Yi Inventor before: Zhou Feng Inventor before: Shi Shuo Inventor before: Li Shuyin |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DUAN SHIFENG DONG BIN LIU YI ZHOU FENG SHI SHUO LI SHUYIN TO: DUAN SHIFENG DONG QING DONG BIN LIU YI ZHOU FENG SHI SHUO LI SHUYIN |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130904 |