CN103939050A - Fixed throttling valve for oil production well mouth - Google Patents
Fixed throttling valve for oil production well mouth Download PDFInfo
- Publication number
- CN103939050A CN103939050A CN201410127811.8A CN201410127811A CN103939050A CN 103939050 A CN103939050 A CN 103939050A CN 201410127811 A CN201410127811 A CN 201410127811A CN 103939050 A CN103939050 A CN 103939050A
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- oil nozzle
- valve
- described oil
- external screw
- screw thread
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Abstract
The invention discloses a fixed throttling valve for an oil production well mouth. The fixed throttling valve for the oil production well mouth comprises a valve body and a valve deck. The fixed throttling valve for the oil production well mouth is characterized in that the fixed throttling valve further comprises a high-pressure stop valve and a nozzle assembly, a valve cavity is arranged inside the valve body, the valve deck stretches into the top of the valve cavity, a flow channel communicated with the valve cavity is arranged in the valve deck, the high-pressure stop valve is arranged on the top of the flow channel, a flange capable of being connected with the valve is arranged on the side face of the valve body, a flow inlet connected with the valve cavity is arranged in the flange, internal threads are arranged on the portion, located at the lower end of the flow inlet, of the inner wall of the valve cavity, and the nozzle assembly is connected with the internal threads on the inner wall of the valve cavity in a matched mode through external threads. According to the fixed throttling valve for the oil production well mouth, the problems that due to the fact that a nozzle assembly and a throttling valve are fixedly connected, when the nozzle breaks down due to scouring, the throttling valve needs to be replaced, normal exploitation of oil is delayed, the replaced throttling valve is difficult to maintain, and cost is high are solved, the nozzle assembly can be replaced rapidly, and normal exploitation of oil is not affected.
Description
Technical field
The present invention relates to a kind of choke valve, particularly relate to a kind of production wellhead fixation type throttle valve.
Background technology
Choke valve is by changing throttling cross section or chock length to control the valve of fluid flow.It is streamlined that the opening and closing element of choke valve is mostly circular cone, changes channel cross-sectional area reach adjust flux and pressure by it.Choke valve is for do to reduce pressure medium in the great situation of Pressure Drop.
Recovering the oil, in the work production process of gas production, owing to existing a large amount of impurity in fluid media (medium), as grains of sand etc., these impurity are under the effect of high-pressure fluid medium, flow velocity is fast, runner hole is produced to very strong souring, that particularly in the entrance of adjust flux, washes away is more severe, therefore, adopt the oil nozzle life-span of common steel manufacturing very short, need to change frequently oil nozzle composite member, therefore consider that oil nozzle material adopts carbide alloy, its flexural strength is 1500MPa, hardness is HRA89, than with common material through the oil nozzle of heat treatment manufacturing resistance to erosion more, wear-resistant and corrosion-resistant, but Hardmetal materials density is very large, reach every cubic centimetre of 15g, price is high, if oil nozzle part is all manufactured with Hardmetal materials, the overall weight of meeting increase equipment, also waste material, increased greatly manufacturing cost.
Simultaneously because original oil nozzle composite member is fixedly connected with choke valve, cause so whole choke valve normally to use, need to change choke valve, delay the normal collection of fluid, affect picking rate, because oil nozzle composite member and choke valve are to be fixedly connected with, the choke valve maintenance changing also very bothers simultaneously, and maintenance cost is higher.
Summary of the invention
In order to solve oil nozzle composite member in prior art, be to be fixedly connected with choke valve, when oil nozzle is washed after damage, need to change choke valve, delay the normal collection of fluid, the choke valve maintenance trouble simultaneously changing, the problem that cost is high, the invention provides a kind of simple in structure, can quick-replaceable oil nozzle composite member, do not affect the production wellhead fixation type throttle valve that normal collection is used.
In order to address the above problem, the technical solution used in the present invention is:
A kind of production wellhead fixation type throttle valve, comprise valve body and valve gap, it is characterized in that: also comprise high-pressure stop valve and oil nozzle composite member, in valve body, be provided with valve pocket, valve gap has been stretched at top at valve pocket, in valve gap, be provided with the runner connecting with valve pocket, at runner top, be provided with high-pressure stop valve, in the side of valve body, be provided with the flange that can be connected with valve, in flange, be provided with the influent stream mouth being connected with valve pocket, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle composite member is connected with the screw-internal thread fit of valve pocket inwall by external screw thread.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: in the side of valve body, be also provided with one and connect with valve pocket the exhaust pressure relief valve being connected.
Aforesaid a kind of production wellhead fixation type throttle valve, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle and sealing ring, in described oil nozzle seat, be provided with oil gas runner, described oil nozzle seat upper inside wall caves inward and forms oil nozzle placement section, described oil nozzle is fixing is connected to oil nozzle placement section by matched in clearance, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on the oil nozzle seat cylindrical below external screw thread, is arranged with the sealing ring sealing.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle top embeds circlip for hole.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat adopts 12Cr13 stainless steel material to make.
Aforesaid a kind of production wellhead fixation type throttle valve, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle, oil nozzle spacer shell and sealing ring, on oil nozzle spacer shell cylindrical, be provided with external screw thread, described oil nozzle spacer shell is connected with the screw-internal thread fit arranging on oil nozzle seat inwall by external screw thread, in oil nozzle spacer shell, be provided with oil gas runner, described oil nozzle is arranged on the inwall of oil gas runner by interference fit, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on oil nozzle seat cylindrical below external screw thread, be arranged with the sealing ring sealing.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: the sealing ring that is provided with two seals oil nozzle spacer shell and oil nozzle seat annular space on the cylindrical of oil nozzle spacer shell lower end.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil gas runner is designed to step-like, comprises interconnective large aperture runner and small-bore runner, and described oil nozzle is realized interference fit with large aperture runner and is connected.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat and oil nozzle spacer shell adopt 12Cr13 stainless steel material to make.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle spacer shell top cylindrical adopts hexagonal design.
The invention has the beneficial effects as follows: production wellhead of the present invention fixation type throttle valve, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle is fixedly connected on oil nozzle placement section, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, employing aforesaid way connects, oil nozzle seat can be taken out and change from choke valve quickly and easily, use convenient, do not delay picking rate, improved output, oil nozzle is designed to be with oil nozzle spacer shell simultaneously, with Hardmetal materials seldom, do oil nozzle, saved like this Hardmetal materials, solved carbide alloy crisp, the defect that impact resistance is poor, also saved greatly manufacturing cost.
Accompanying drawing explanation
Fig. 1 is fixation type throttle valve arrangement schematic diagram for production wellhead of the present invention.
Fig. 2 is a kind of oil nozzle assembling unit structure of the present invention schematic diagram.
Fig. 3 is the another kind of oil nozzle assembling unit structure of the present invention schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a production wellhead fixation type throttle valve, comprises valve body 1, valve gap 2, oil nozzle composite member 3, high-pressure stop valve 5, the tight cap 6 of screw thread and exhaust pressure relief valve 7, is provided with valve pocket 4 in valve body 1, at the top of valve pocket 4, stretch into valve gap 5, in valve gap 5 outsides, be arranged with the tight cap 6 of screw thread.In valve gap 2, be provided with the runner 8 connecting with valve pocket 4, at runner 8 tops, be provided with high-pressure stop valve 5, in the side of valve body 1, be provided with the flange 9 that can be connected with valve, in flange 9, be provided with the influent stream mouth 10 being connected with valve pocket 4, on valve pocket 4 inwalls of influent stream mouth 7 lower ends, be provided with internal thread, in the side of valve body 1, be also provided with one and connect with valve pocket 4 the exhaust pressure relief valve 7 being connected, described oil nozzle composite member 3 is connected with the screw-internal thread fit of valve pocket 4 inwalls by external screw thread.
During design, for the ease of different inner diameters oil nozzle, use, oil nozzle composite member is designed to two kinds of moulding.
As shown in Figure 2, the oil nozzle composite member of being convenient to the use of heavy caliber oil nozzle comprises oil nozzle seat 11, oil nozzle 12 and sealing ring 14, in described oil nozzle seat 11, be provided with oil gas runner 15, described oil nozzle seat 11 upper inside wall cave inward and form oil nozzle placement section, described oil nozzle 12 is connected to oil nozzle placement section by matched in clearance, on oil nozzle seat 9 middle part cylindricals, be provided with external screw thread 16, described oil nozzle seat 11 is connected with the screw-internal thread fit of valve pocket 4 inwalls by external screw thread 16, on oil nozzle seat 11 cylindricals below external screw thread 16, be arranged with the sealing ring 14 sealing, can prevent that like this oil gas from spilling by external screw thread 16 backflows of oil nozzle seat 11, affect the use of control valve.At oil nozzle 10 tops, embed and have circlip for hole 13.Can prevent that like this oil nozzle 12 from upwards scurrying out and leave oil nozzle placement section due to reaction force, improve the security reliability that whole equipment is used.Described oil nozzle 12 is fixedly connected with and oil nozzle placement section by sealing ring 14.Described oil nozzle 12 adopts Hardmetal materials to make, and described oil nozzle seat 11 adopts 12Cr13 stainless steel material to make.
As shown in Figure 3, the oil nozzle composite member of being convenient to small-bore oil nozzle use comprises oil nozzle seat 17, oil nozzle 19, oil nozzle spacer shell 18 and sealing ring 24, on oil nozzle spacer shell 18 cylindricals, be provided with external screw thread, described oil nozzle spacer shell 18 is connected with the screw-internal thread fit arranging on oil nozzle seat 17 inwalls by external screw thread, is provided with the sealing ring 24 of two seals oil nozzle spacer shell 18 and oil nozzle seat 17 annular spaces on oil nozzle spacer shell 18 lower end cylindricals.
In oil nozzle spacer shell 18, be provided with oil gas runner 20, oil gas runner 20 is designed to step-like, comprises interconnective large aperture runner 22 and small-bore runner 23, and described oil nozzle 19 is realized interference fit with large aperture runner 22 and is connected.On oil nozzle seat 17 middle part cylindricals, be provided with external screw thread 21, described oil nozzle seat 17 is connected with the screw-internal thread fit of valve pocket 4 inwalls by external screw thread, on oil nozzle seat 17 cylindricals below external screw thread 21, be arranged with sealing ring 24, the effectively sealing of the annular space between sealed valve body 1 and oil nozzle seat 17, prevents dielectric leakage.
Described oil nozzle 19 adopts Hardmetal materials to make, described oil nozzle seat 17 and oil nozzle spacer shell 18 adopt 12Cr13 stainless steel material to make, and have saved like this Hardmetal materials, have solved carbide alloy crisp, the defect that impact resistance is poor, has also saved manufacturing cost greatly.Described oil nozzle spacer shell 18 top cylindricals adopt hexagonal design.With special spanner, can mount and dismount.
The oil nozzle resistance to erosion of oil nozzle composite member of the present invention, corrosion-resistant, wear-resistant, long service life.Oil nozzle 10 is divided into some groups, and oil nozzle diameter is from ￠ 1.58～￠ 19.84, and increment is 0.79, totally 24; Diameter is from ￠ 20.64～￠ 39.68, and totally 16, diameter ￠ 20.64～￠ 25.4 increments are 0.79, and totally 7, diameter is 1.58 from ￠ 26.98～￠ 39.68 increments, totally 9; The 3rd group of oil nozzle diameter ￠ 41.27～￠ 50.8 increments are 1.58, totally 7, user can need to select corresponding oil nozzle according to different flow, meet production requirement, like this by changing different oil nozzle composite membeies, can change the diameter of oil nozzle, thereby change the flow of fixation type throttle valve for production wellhead, easy to use.
In sum, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle is fixedly connected on oil nozzle placement section, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, employing aforesaid way connects, oil nozzle seat can be taken out and change from choke valve quickly and easily, use convenient, do not delay picking rate, improved output, oil nozzle structure of the present invention is reasonable in design, dismounting and change oil nozzle is convenient, particularly in the large sand amount shaft mouth operation process of oil field, choke pressure is stable, effective, application life especially common material oil nozzle 5-6 doubly.
More than show and described basic principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. a production wellhead fixation type throttle valve, comprise valve body and valve gap, it is characterized in that: also comprise high-pressure stop valve and oil nozzle composite member, in valve body, be provided with valve pocket, valve gap has been stretched at top at valve pocket, in valve gap, be provided with the runner connecting with valve pocket, at runner top, be provided with high-pressure stop valve, in the side of valve body, be provided with the flange that can be connected with valve, in flange, be provided with the influent stream mouth being connected with valve pocket, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle composite member is connected with the screw-internal thread fit of valve pocket inwall by external screw thread.
2. a kind of production wellhead fixation type throttle valve according to claim 1, is characterized in that: in the side of valve body, be also provided with one and connect with valve pocket the exhaust pressure relief valve being connected.
3. a kind of production wellhead fixation type throttle valve according to claim 2, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle and sealing ring, in described oil nozzle seat, be provided with oil gas runner, described oil nozzle seat upper inside wall caves inward and forms oil nozzle placement section, described oil nozzle is fixing is connected to oil nozzle placement section by matched in clearance, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on the oil nozzle seat cylindrical below external screw thread, is arranged with the sealing ring sealing.
4. a kind of production wellhead fixation type throttle valve according to claim 3, is characterized in that: described oil nozzle top embeds circlip for hole.
5. a kind of production wellhead fixation type throttle valve according to claim 4, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat adopts 12Cr13 stainless steel material to make.
6. a kind of production wellhead fixation type throttle valve according to claim 2, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle, oil nozzle spacer shell and sealing ring, on oil nozzle spacer shell cylindrical, be provided with external screw thread, described oil nozzle spacer shell is connected with the screw-internal thread fit arranging on oil nozzle seat inwall by external screw thread, in oil nozzle spacer shell, be provided with oil gas runner, described oil nozzle is arranged on the inwall of oil gas runner by interference fit, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on oil nozzle seat cylindrical below external screw thread, be arranged with the sealing ring sealing.
7. a kind of production wellhead fixation type throttle valve according to claim 2, is characterized in that: the sealing ring that is provided with two seals oil nozzle spacer shell and oil nozzle seat annular space on the cylindrical of oil nozzle spacer shell lower end.
8. a kind of production wellhead fixation type throttle valve according to claim 7, it is characterized in that: described oil gas runner is designed to step-like, comprise interconnective large aperture runner and small-bore runner, described oil nozzle is realized interference fit with large aperture runner and is connected.
9. a kind of production wellhead fixation type throttle valve according to claim 8, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat and oil nozzle spacer shell adopt 12Cr13 stainless steel material to make.
10. a kind of production wellhead fixation type throttle valve according to claim 9, is characterized in that: described oil nozzle spacer shell top cylindrical adopts hexagonal design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410127811.8A CN103939050A (en) | 2014-03-31 | 2014-03-31 | Fixed throttling valve for oil production well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410127811.8A CN103939050A (en) | 2014-03-31 | 2014-03-31 | Fixed throttling valve for oil production well mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103939050A true CN103939050A (en) | 2014-07-23 |
Family
ID=51186896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410127811.8A Pending CN103939050A (en) | 2014-03-31 | 2014-03-31 | Fixed throttling valve for oil production well mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939050A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246136A (en) * | 2016-09-28 | 2016-12-21 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of adjustable throttling positive choke |
| CN109372470A (en) * | 2018-11-28 | 2019-02-22 | 美钻深海能源科技研发（上海）有限公司 | A kind of fixed restrictive valve and its spool replacing options of novel practical |
| CN112012693A (en) * | 2019-05-31 | 2020-12-01 | 中国石油化工股份有限公司 | Throttle valve |
| CN114508328A (en) * | 2020-11-16 | 2022-05-17 | 中国石油天然气股份有限公司 | Oil nozzle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1619937A (en) * | 1925-06-15 | 1927-03-08 | Universal Oil Prod Co | Valve |
| CN201747325U (en) * | 2010-07-30 | 2011-02-16 | 金湖金石阀业有限公司 | Adjustable fixing throttle valve |
| CN201874520U (en) * | 2010-11-12 | 2011-06-22 | 盐城市阳标石油机械有限公司 | Cage type throttling valve |
| CN102296940A (en) * | 2011-07-05 | 2011-12-28 | 戴义明 | Adjustable choke seat |
| CN102829243A (en) * | 2012-09-10 | 2012-12-19 | 天津百利展发集团有限公司 | Secondary-throttling cutoff balanced throttling valve |
| CN203796222U (en) * | 2014-03-31 | 2014-08-27 | 南京伟业机械有限公司 | Fixed throttle valve used for oil extraction wellhead |
-
2014
- 2014-03-31 CN CN201410127811.8A patent/CN103939050A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1619937A (en) * | 1925-06-15 | 1927-03-08 | Universal Oil Prod Co | Valve |
| CN201747325U (en) * | 2010-07-30 | 2011-02-16 | 金湖金石阀业有限公司 | Adjustable fixing throttle valve |
| CN201874520U (en) * | 2010-11-12 | 2011-06-22 | 盐城市阳标石油机械有限公司 | Cage type throttling valve |
| CN102296940A (en) * | 2011-07-05 | 2011-12-28 | 戴义明 | Adjustable choke seat |
| CN102829243A (en) * | 2012-09-10 | 2012-12-19 | 天津百利展发集团有限公司 | Secondary-throttling cutoff balanced throttling valve |
| CN203796222U (en) * | 2014-03-31 | 2014-08-27 | 南京伟业机械有限公司 | Fixed throttle valve used for oil extraction wellhead |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246136A (en) * | 2016-09-28 | 2016-12-21 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of adjustable throttling positive choke |
| CN106246136B (en) * | 2016-09-28 | 2019-06-18 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of adjustable throttling positive choke |
| CN109372470A (en) * | 2018-11-28 | 2019-02-22 | 美钻深海能源科技研发（上海）有限公司 | A kind of fixed restrictive valve and its spool replacing options of novel practical |
| CN109372470B (en) * | 2018-11-28 | 2023-09-26 | 美钻深海能源科技研发（上海）有限公司 | Novel practical fixed throttle valve and valve core replacement method thereof |
| CN112012693A (en) * | 2019-05-31 | 2020-12-01 | 中国石油化工股份有限公司 | Throttle valve |
| CN114508328A (en) * | 2020-11-16 | 2022-05-17 | 中国石油天然气股份有限公司 | Oil nozzle |
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Application publication date: 20140723 |