CN103114829A - Current limiting device with hole diameter adjustable - Google Patents
Current limiting device with hole diameter adjustable Download PDFInfo
- Publication number
- CN103114829A CN103114829A CN2012101381088A CN201210138108A CN103114829A CN 103114829 A CN103114829 A CN 103114829A CN 2012101381088 A CN2012101381088 A CN 2012101381088A CN 201210138108 A CN201210138108 A CN 201210138108A CN 103114829 A CN103114829 A CN 103114829A
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- mandrel
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- aperture
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Abstract
The invention discloses a current limiting device with a hole diameter adjustable. Two symmetric through holes are formed in a cylinder wall of a mandrel seat. The portions, with the two through holes, of the cylinder wall are respectively and fixedly connected with an outer connecting tube with inner threads. A cylinder opening at one end of the mandrel seat is provided with a sealing cover through threads. A mandrel in a stepped shape and capable of rotating is composed of the mandrel and a hole shrinkage connecting shaft. The mandrel with a cylindrical sealing cavity is matched with an inner hole of the mandrel seat in a movable mode. Through holes arranged symmetrically and with hole diameters enlarged gradually are formed in the mandrel along the radial direction. The two symmetric through holes in the mandrel with the largest diameters and the two symmetric through holes in the mandrel seat are the same in the hole diameter and are matched in a mode of coaxial line. A cylinder opening of the other end of the mandrel seat is provided with a gland nut through threads. An inner hole of the gland nut is movably matched with the connecting shaft. The connecting shaft between a mandrel bumper and the gland nut is provided with a sealing piece. According to the current limiting device with the hole diameter adjustable, under the condition that shutdown operation is not needed, the hole diameter of an oil nozzle can be adjusted conveniently to adjust flow and oil extraction differential pressure can be adjusted and controlled according to variation of oil temperature so that blowing period of an oil well can be prolonged, operation is simple and time and labor are saved.
Description
Technical field
The present invention relates to technical field of petroleum extraction, belong to the current-limiting apparatus of well head Produced Liquid flow-control equipment, particularly a kind of adjustable aperture.
Background technology
At present, in oil recovery process, in order to control the production wellhead producing pressure differential, reach the purpose that the throttling open flow is asked product, often use the fixed choke cover.Be connected with the mouth sleeve screw-internal thread fit by the oil nozzle external screw thread, realize different current limliting requirements by the oil nozzle of changing the different size aperture.In steam injection or turn and take out etc. when needing to change the positive choke latus rectum, can only closing well, pull down the resistance oil nozzle sleeve end cap after release and change positive choke, waste time and energy, and easily cause crude oil pollution, bring inconvenience for the oil recovery scene.
To sum up, the traditional oils muzzle is installed complicated, need to carry out shutdown operation to production well, can not carry out real-time conversion adjustment to oil flow channel.The fouling after the cycle steam injection of the sampling plug of mouth sleeve is sticking dead, and loading and unloading are inconvenient, drives a well and can only control with the upstream gate between flush stage.Following shortcoming is arranged:
One, inaccurate, control difficulty, heat energy is put and is lost seriously;
Two, can not effectively utilize heat energy to extend the blowing time, cause oil well management not meticulous, untimely.
Summary of the invention
The object of the present invention is to provide a kind of current-limiting apparatus of adjustable aperture; can regulate easily the aperture of oil nozzle under need not the condition of shutdown operation, change area of passage and realize adjust flux; and flow direction change not; little on the impact of liquid stream, can change regulation and control oil recovery pressure reduction according to oil temperature, taking full advantage of heat energy increases the output of recovering the oil; extend the oil well blowing cycle; easy and simple to handle, time saving and energy saving, long service life.
The object of the present invention is achieved like this: a kind of current-limiting apparatus of adjustable aperture, rotating mandrel cooperation is arranged on the barrel core axle bed, two symmetrical through holes are being set on the barrel of mandrel seat, affixed the extension tube attached with internal thread respectively on the barrel of two through holes is installed with capping by screw thread on one end nozzle of mandrel seat; The rotating mandrel of stairstepping is made of mandrel and undergauge connecting axle, have the mandrel of cylindrical enclosed cavity and mandrel seat endoporus movingly, radial equipartition is arranging the through hole of the ascending symmetric arrays in aperture on mandrel, wherein on mandrel, the through-hole aperture of two of the diameter maximum symmetries equates with two symmetrical through-hole apertures on mandrel seat, and coaxial line matches, its endoporus of clamp nut of installing by screw thread in mandrel seat other end nozzle and connecting axle are arranging seal movingly on the connecting axle between mandrel shoulder block and clamp nut.
Extension tube attached of the present invention and oil well oil nozzle external screw thread are connected.
The through hole of uniform setting on mandrel of the present invention, every two one group, the aperture processes as required.Determine according to required maximum diameter of hole at two φ 40mm(of liquid flow path direction processing on main body) through hole.
By the rotation mandrel, make the through hole on the aligned with core axle bed of required aperture, can realize fast, accurately change the aperture.
Use the present invention need not shutdown operation, can regulate the oil nozzle aperture, open flow ponding, or check that the adjustable bean device adjustable aperture of oil nozzle is tailor-made on request, the aperture in each mandrel processing a plurality of apertures realize to the oil well production situation accurately, in time management; Can change regulation and control oil recovery pressure reduction according to oil temperature, reach and take full advantage of the purpose that heat energy increases oil; The protection stratum effectively extends the oil well blowing cycle.
The spool of the present invention by rotating changed between a plurality of constant apertures, realized accurately, fast, change area of passage, realize controlling flow, adjust oil well pressure reduction.The present invention has realized under need not the condition of shutdown operation; regulate easily the aperture of oil nozzle; change area of passage and realize adjust flux, and flow direction change not, little on the impact of liquid stream; change regulation and control oil recovery pressure reduction according to oil temperature; taking full advantage of heat energy increases the output of recovering the oil, and has effectively extended the oil well blowing cycle, easy and simple to handle; time saving and energy saving, long service life.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing,
Fig. 1 is that master of the present invention looks the sectional structure schematic diagram;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1;
Fig. 4 is for being the A of Fig. 1-A sectional structure schematic diagram.
The specific embodiment
a kind of current-limiting apparatus of adjustable aperture, as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, rotating mandrel cooperation is arranged in barrel core axle bed 1, two symmetrical through holes are being set on the barrel of mandrel seat 1, affixed the extension tube attached 8 with internal thread respectively on the barrel of two through holes is installed with capping 9 by screw thread on an end nozzle of mandrel seat 1, the rotating mandrel of stairstepping is made of mandrel 2 and undergauge connecting axle 3, mandrel 2 with cylindrical enclosed cavity and mandrel seat 1 endoporus are movingly, radial equipartition is arranging the through hole of the ascending symmetric arrays in aperture on mandrel 2, wherein on mandrel 2, the through-hole aperture of two symmetries of diameter maximum equates with two symmetrical through-hole apertures on mandrel seat 1, and coaxial line matches, clamp nut 5 its endoporus of installing by screw thread in mandrel seat 1 other end nozzle and connecting axle 3 are movingly, on the connecting axle 3 between mandrel 2 shoulder blocks and clamp nut 5, seal 4 is being set.The number of openings that evenly arranges on mandrel 2 is 10, and wherein the through hole of every two symmetries is one group, and the aperture of two symmetrical through holes of aperture maximum is φ 40-50mm, and all the other through-hole apertures are less than φ 20mm.On the uniform aperture cue mark 11 that arranging on the circumference of connecting axle 3 outer faces, the position of aperture cue mark 11 and mandrel 2, the center of circle of uniform through hole is corresponding with the line of centres in mandrel axle center respectively.Aperture cue mark 11 is indentation or the pit of uniform setting on the circumference of connecting axle 3 outer faces.The aperture that shows oil nozzle by the aperture cue mark 11 on end face of mandrel.Outer end at connecting axle 3 is radially arranging connecting axle tightening hole 6.Nut tightening hole 7 radially is being set in the outer end of clamp nut 5.On the concave station of the outer face of capping 9, capping tightening hole 10 is being set radially.Seal 4 is sealing ring or packing.Seal 4 adjustable-tightness degree increase the service life.Radial equipartition is arranging 10 through holes on mandrel 2.Mandrel 2 is 0.05-0.15mm with the fit clearance of mandrel seat 1.
Claims (10)
1. the current-limiting apparatus of an adjustable aperture, it is characterized in that: rotating mandrel cooperation is arranged in barrel core axle bed (1), two symmetrical through holes are being set on the barrel of mandrel seat (1), affixed the extension tube attached (8) with internal thread respectively on the barrel of two through holes is installed with capping (9) by screw thread on an end nozzle of mandrel seat (1), the rotating mandrel of stairstepping is made of mandrel (2) and undergauge connecting axle (3), mandrel (2) with cylindrical enclosed cavity and mandrel seat (1) endoporus are movingly, the through hole of the ascending symmetric arrays in aperture is being set at the upper radial equipartition of mandrel (2), wherein the through-hole aperture of two symmetries of the upper diameter maximum of mandrel (2) equates with two symmetrical through-hole apertures on mandrel seat (1), and coaxial line matches, its endoporus of clamp nut (5) of installing by screw thread in mandrel seat (1) other end nozzle and connecting axle (3) are movingly, on the connecting axle (3) between mandrel (2) shoulder block and clamp nut (5), seal (4) is being set.
2. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, it is characterized in that: be 10 in the upper number of openings that evenly arranges of mandrel (2), wherein the through hole of every two symmetries is one group, the aperture of two symmetrical through holes of aperture maximum is φ 40-50mm, and all the other through-hole apertures are less than φ 20mm.
3. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, it is characterized in that: the uniform aperture cue mark (11) that arranging on the circumference of connecting axle (3) outer face, the center of circle of the upper uniform through hole of the position of aperture cue mark (11) and mandrel (2) are corresponding with the line of centres in mandrel axle center respectively.
4. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, it is characterized in that: aperture cue mark (11) is indentation or the pit of uniform setting on the circumference of connecting axle (3) outer face.
5. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, is characterized in that: in the outer end of connecting axle (3), connecting axle tightening hole (6) is being set radially.
6. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, is characterized in that: in the outer end of clamp nut (5), nut tightening hole (7) is being set radially.
7. the current-limiting apparatus of a kind of adjustable aperture according to claim 1 is characterized in that: on the concave station of the outer face of capping (9), capping tightening hole (10) is being set radially.
8. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, it is characterized in that: seal (4) is sealing ring or packing.
9. the current-limiting apparatus of a kind of adjustable aperture according to claim 1, is characterized in that: at the upper radial equipartition of mandrel (2), 10 through holes are being set.
10. the current-limiting apparatus of a kind of adjustable aperture according to claim 1 is characterized in that: mandrel (2) is 0.05-0.15mm with the fit clearance of mandrel seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210138108.8A CN103114829B (en) | 2012-05-07 | 2012-05-07 | A kind of current-limiting apparatus of adjustable aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210138108.8A CN103114829B (en) | 2012-05-07 | 2012-05-07 | A kind of current-limiting apparatus of adjustable aperture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103114829A true CN103114829A (en) | 2013-05-22 |
| CN103114829B CN103114829B (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210138108.8A Expired - Fee Related CN103114829B (en) | 2012-05-07 | 2012-05-07 | A kind of current-limiting apparatus of adjustable aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103114829B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410485A (en) * | 2013-08-14 | 2013-11-27 | 东北石油大学 | Hole-regulating variable-pressure down-hole 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 |
| CN110469683A (en) * | 2018-05-10 | 2019-11-19 | 中国石油天然气股份有限公司 | Oil nozzle valve |
| CN112338638A (en) * | 2019-08-09 | 2021-02-09 | 杨凯 | Improved grinding process for fuel spray nozzle of automobile engine |
| CN114876421A (en) * | 2022-04-28 | 2022-08-09 | 扬州睿德石油机械有限公司 | Adjustable oil nozzle sleeve |
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| CN1450289A (en) * | 2003-04-27 | 2003-10-22 | 许道泽 | Valve and lever integrated ball valve |
| CN2737935Y (en) * | 2004-10-25 | 2005-11-02 | 甘肃圣邦电子科技有限公司 | Oil field water injection well flow regulating valve |
| EP2090812A1 (en) * | 2008-02-12 | 2009-08-19 | Franz Schuck GmbH | Ball valve |
| JP2011174540A (en) * | 2010-02-24 | 2011-09-08 | Tokyo Electron Ltd | Ball valve and evacuating device for evacuation |
| CN202047802U (en) * | 2011-05-09 | 2011-11-23 | 东营宏阳石油技术开发有限公司 | Multistage flow regulator |
| CN202900203U (en) * | 2012-05-07 | 2013-04-24 | 克拉玛依胜利高原机械有限公司 | Hole-diameter adjustable flow-limiting device |
-
2012
- 2012-05-07 CN CN201210138108.8A patent/CN103114829B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450289A (en) * | 2003-04-27 | 2003-10-22 | 许道泽 | Valve and lever integrated ball valve |
| CN2737935Y (en) * | 2004-10-25 | 2005-11-02 | 甘肃圣邦电子科技有限公司 | Oil field water injection well flow regulating valve |
| EP2090812A1 (en) * | 2008-02-12 | 2009-08-19 | Franz Schuck GmbH | Ball valve |
| JP2011174540A (en) * | 2010-02-24 | 2011-09-08 | Tokyo Electron Ltd | Ball valve and evacuating device for evacuation |
| CN202047802U (en) * | 2011-05-09 | 2011-11-23 | 东营宏阳石油技术开发有限公司 | Multistage flow regulator |
| CN202900203U (en) * | 2012-05-07 | 2013-04-24 | 克拉玛依胜利高原机械有限公司 | Hole-diameter adjustable flow-limiting device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410485A (en) * | 2013-08-14 | 2013-11-27 | 东北石油大学 | Hole-regulating variable-pressure down-hole choke |
| CN103410485B (en) * | 2013-08-14 | 2016-04-13 | 东北石油大学 | A kind of tune hole transformation underground throttle device |
| 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 |
| CN110469683A (en) * | 2018-05-10 | 2019-11-19 | 中国石油天然气股份有限公司 | Oil nozzle valve |
| CN112338638A (en) * | 2019-08-09 | 2021-02-09 | 杨凯 | Improved grinding process for fuel spray nozzle of automobile engine |
| CN112338638B (en) * | 2019-08-09 | 2022-05-27 | 济南凯特尔机器有限公司 | Improved grinding process for fuel spray nozzle of automobile engine |
| CN114876421A (en) * | 2022-04-28 | 2022-08-09 | 扬州睿德石油机械有限公司 | Adjustable oil nozzle sleeve |
| CN114876421B (en) * | 2022-04-28 | 2024-04-09 | 扬州睿德石油机械有限公司 | Adjustable oil nozzle sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103114829B (en) | 2015-09-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20200507 |