CN201196068Y - Assembling type reducing nozzle tip - Google Patents
Assembling type reducing nozzle tip Download PDFInfo
- Publication number
- CN201196068Y CN201196068Y CNU200820108431XU CN200820108431U CN201196068Y CN 201196068 Y CN201196068 Y CN 201196068Y CN U200820108431X U CNU200820108431X U CN U200820108431XU CN 200820108431 U CN200820108431 U CN 200820108431U CN 201196068 Y CN201196068 Y CN 201196068Y
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- Prior art keywords
- oil nozzle
- choke
- quantitative
- diameter
- varying
- 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 - Lifetime
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Abstract
An assemble type diameter-varying choke for controlling well yield in oil exploitation is characterized by comprising a quantitative choke and a diameter-varying choke, wherein the quantitative choke comprises an external screw end and a tail end, a check ring is provided between the external screw end and the tail end, the quantitative choke is provided with a central hole, the external screw end is provided with internal screws for connecting the diameter-varying choke in a cylinder form, the diameter-varying choke is also provided with a central hole, one end of the diameter-varying choke is provided with external screws connected with the internal screws of the quantitative choke, and the outer wall of the another end of the diameter-varying choke is provided with two parallel planes. The assemble type diameter-varying choke can change inner diameters according the well formation production capacity, to realize simple change of the inner diameter of the choke.
Description
Technical field
The utility model relates to oil development oil well mouth control device, particularly a kind of production wellhead that is installed in, the device of control oil well output during recover petroleum.
Background technology
In oilfield exploitation procedure, for the higher oil well of oilbearing stratum pressure, do not need mechanical pumping unit, only need to rely on formation pressure directly crude oil to be sprayed onto ground certainly by wellhead for production, such oil well is referred to as the oil flow production well.The oil flow production well adopts quantitative oil nozzle control oil and gas extraction wellhead producing pressure differential at present.Quantitatively oil nozzle adopts clip to be connected with production tree, and rated pressure is 25MPa.Consult Fig. 1 and Fig. 2.Quantitatively oil nozzle comprises male end 3 and tail end 1, restraining position ring block 2 between male end 3 and tail end 1, and quantitatively oil nozzle has centre bore.In order to control the purpose that the oil well oil pressure reaches restriction and stabilize oil well production and prevents formation sand production, select for use the different quantitative oil nozzle of internal diameter size to carry out open flow.Selected little to oil nozzle internal diameter specification and can limit crude output; Though it is high to have selected crude output big, causes oil reservoir to subside accident and interrupt ordinary production easily.The oil nozzle specification is selected to change in good time according to the oil well formation pressure and is changed; In addition, also need to change after the oil nozzle wearing and tearing, the existing quantitative oil nozzle is changed to install to bother very much in management inconvenience.
The utility model content
The purpose of this utility model is: a kind of assembly type reducing oil nozzle is provided, can realizes oil nozzle conversion different inner diameters according to the demand of oil-well strata production capacity; And install and change oil nozzle conveniently; Overcome existing oil nozzle and change the deficiency that trouble is installed; Reduce processing charges.
The technical solution adopted in the utility model is: assembly type reducing oil nozzle, form by quantitative oil nozzle and reducing oil nozzle.Quantitatively oil nozzle comprises male end and tail end, restraining position ring block between male end and tail end, and quantitatively oil nozzle has centre bore.It is characterized in that: in the quantitative male end of oil nozzle internal thread is arranged, the internal thread by quantitative oil nozzle male end is connected with the reducing oil nozzle.Reducing oil nozzle profile is cylindric, and the reducing oil nozzle has centre bore; Reducing oil nozzle one end has external screw thread and is connected on the internal thread of quantitative oil nozzle.Two planes are arranged on the other end outer wall of reducing oil nozzle, and two planes are parallel to each other.Two planes are to be used for fixing tightening tool usefulness, as spanner etc.
Select for use the different oil nozzle of internal diameter to carry out open flow in order to adapt to oil well, the internal diameter of reducing oil nozzle centre bore is less than quantitative oil nozzle internal diameter, so the diameter of described reducing oil nozzle centre bore is between 2～12 millimeters.
The beneficial effects of the utility model: the on-the-spot Preliminary Applications of the utility model assembly type reducing oil nozzle reaches the open flow effect of well head fixed choke.Can in time change the reducing oil nozzle of different inner diameters according to oil-well strata production capacity needs, realize that oil nozzle conversion internal diameter is convenient.Overcome existing quantitative oil nozzle integral replacing the deficiency of trouble is installed.In addition, has economical with materials; Cut down expenses; Reduce the repeated workload in the machine, offer convenience for simultaneously execute-in-place, keeping.
Description of drawings
Fig. 1 is existing quantitative oil nozzle structural profile schematic diagram.
Fig. 2 is the left view of Fig. 2.
Fig. 3 is the utility model assembly type reducing oil nozzle structural profile schematic diagram.
Fig. 4 is the A-A generalized section.
Fig. 5 is the B-B generalized section.
Among the figure, 1. tail end, 2. spacing ring, 3. male end, 4. reducing oil nozzle, 5. centre bore, 6. plane.
The specific embodiment
Embodiment 1: with an internal diameter be 14 millimeters quantitative oil nozzle to be adapted as internal diameter be that 10 millimeters assembly type reducing oil nozzle is an example, the utility model is described in further detail.
Consult Fig. 3.The utility model assembly type reducing oil nozzle is made up of a quantitative oil nozzle and a reducing oil nozzle 4.Quantitatively oil nozzle comprises male end 3 and tail end 1, restraining position ring block 2 between male end 3 and tail end 1, and quantitatively oil nozzle has centre bore, and centre bore is 14 millimeters.
Reducing oil nozzle 4 profiles are cylindric, and reducing oil nozzle 4 has a centre bore 5, and the diameter of centre bore is 10 millimeters; Reducing oil nozzle 4 one ends have external screw thread and are connected on the internal thread of quantitative oil nozzle.Have 6, two planes 6, two planes to be parallel to each other on the other end outer wall of reducing oil nozzle 4, the distance between two planes 6 is 14 millimeters.
It is standby that the reducing oil nozzle 4 of same profile, the internal diameter of its centre bore 5 also are made into the reducing oil nozzle 4 of 12 millimeters, 8 millimeters, 6 millimeters, 4 millimeters and 2 millimeters, selects the reducing oil nozzle 4 of the most suitable oil well and be used with quantitative oil nozzle.
Claims (2)
1. assembly type reducing oil nozzle, form by quantitative oil nozzle and reducing oil nozzle (4), quantitatively oil nozzle comprises male end (3) and tail end (1), restraining position ring block (2) between male end (3) and tail end (1), quantitatively oil nozzle has centre bore, it is characterized in that: in the quantitative male end (3) of oil nozzle internal thread is arranged, the internal thread by quantitative oil nozzle male end (3) is connected with reducing oil nozzle (4), reducing oil nozzle (4) profile is cylindric, and reducing oil nozzle (4) has centre bore (5); One end of reducing oil nozzle (4) has external screw thread and is connected on the internal thread of quantitative oil nozzle, and two planes (6) are arranged on the other end outer wall of reducing oil nozzle (4), and two planes (6) are parallel to each other.
2. assembly type reducing oil nozzle according to claim 1 is characterized in that: the diameter of described reducing oil nozzle (4) centre bore (5) is 2～12 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820108431XU CN201196068Y (en) | 2008-05-30 | 2008-05-30 | Assembling type reducing nozzle tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820108431XU CN201196068Y (en) | 2008-05-30 | 2008-05-30 | Assembling type reducing nozzle tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196068Y true CN201196068Y (en) | 2009-02-18 |
Family
ID=40415704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820108431XU Expired - Lifetime CN201196068Y (en) | 2008-05-30 | 2008-05-30 | Assembling type reducing nozzle tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196068Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437617A (en) * | 2016-10-27 | 2017-02-22 | 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 | Mechanically adjustable fixed oil nozzle |
| CN109751019A (en) * | 2017-11-02 | 2019-05-14 | 中国石油天然气股份有限公司 | Adjustable choke, process pipe string and adjusting method |
| CN110979962A (en) * | 2019-12-05 | 2020-04-10 | 中国石油化工股份有限公司 | Anti-backflow oil nozzle sleeve device |
-
2008
- 2008-05-30 CN CNU200820108431XU patent/CN201196068Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437617A (en) * | 2016-10-27 | 2017-02-22 | 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 | Mechanically adjustable fixed oil nozzle |
| CN106437617B (en) * | 2016-10-27 | 2018-11-13 | 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 mechanical adjustable positive choke |
| CN109751019A (en) * | 2017-11-02 | 2019-05-14 | 中国石油天然气股份有限公司 | Adjustable choke, process pipe string and adjusting method |
| CN109751019B (en) * | 2017-11-02 | 2023-11-28 | 中国石油天然气股份有限公司 | Adjustable oil nozzle, process pipe column and adjusting method |
| CN110979962A (en) * | 2019-12-05 | 2020-04-10 | 中国石油化工股份有限公司 | Anti-backflow oil nozzle sleeve device |
| CN110979962B (en) * | 2019-12-05 | 2021-11-30 | 中国石油化工股份有限公司 | Anti-backflow oil nozzle sleeve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090218 |