CN203515523U - Downhole throttling device with rotary gas nipple and automatic adjustment function - Google Patents
Downhole throttling device with rotary gas nipple and automatic adjustment function Download PDFInfo
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- CN203515523U CN203515523U CN201320607130.2U CN201320607130U CN203515523U CN 203515523 U CN203515523 U CN 203515523U CN 201320607130 U CN201320607130 U CN 201320607130U CN 203515523 U CN203515523 U CN 203515523U
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Abstract
The utility model discloses a downhole throttling device with a rotary gas nipple and the automatic adjustment function. The downhole throttling device with the rotary gas nipple and the automatic adjustment function is designed for achieving the purpose that deployment of gas well yield is carried out on the situation that the downhole throttling device is not fished. The downhole throttling device comprises a dispenser, a gland, a press rod, a body, a fishing neck, a slips, a conical base, a baffle ring, a first unblocking claw, a second unblocking claw, a piston barrel, a rubber sleeve, an air cylinder, a sand-preventing cover and a lower center pipe, wherein springs and a gas nipple sleeve with the gas nipple are arranged in a guide sleeve arranged in the sand-preventing cover, a rotary spline and a transmission spline are installed on a central spindle arranged in the gas nipple sleeve, and a locating spline is arranged in the guide sleeve. According to the downhole throttling device, sealing is carried out through the single rubber sleeve; when the rubber sleeve contracts, the phenomenon that when the rubber sleeve is lifted upwards, the rubber sleeve rubs against an oil pipe can be avoided, and fishing can be easier; when the gas pressure of a shaft changes, transmission is carried out through the splines, a throttling channel is automatically changed, the gas flow of the gas nipple is adjusted, yield deployment is achieved without fishing the downhole throttling device, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of rotary nozzle and automatically regulates underground throttle device, belongs to production gas technology field, oil field.
Background technology
Downhole choke technology is to utilize underground throttle device to realize pit shaft reducing pressure by regulating flow, utilizes ground temperature heating that the well head gas flow temperature after throttling is returned to the temperature before throttling substantially, to solve many technical barriers that in gas well manufacturing process, pit shaft and ground exist.
At Soviet Union's Sulige gas field, downhole choke technology, by preventing the pressure of gas hydrates develop to reduction well head and surface gathering system, has been optimized ground flow.
In long celebrating oil field, along with continuing to increase of horizontal well development dynamics, the application of underground throttle device is more and more.And horizontal well have chock pressure difference large, salvage that tension force is large, gas well easily shakes out and output such as adjusts at any time at the feature, conventional restriction choke exposes inadaptability while applying in horizontal well, that is: Large Diameter Pipeline restriction choke salvaging pick-up drag is large, horizontal well shakes out, and impact input is salvaged, valve replacing is frequent and restriction choke is thrown in fishing construction volume increase etc.
Summary of the invention
The purpose of this utility model is to provide a kind of rotary nozzle automatically to regulate underground throttle device, to realize in the gas well output allotment of not salvaging in restriction choke situation.
Concrete technology contents of the present utility model is as follows:
The dispenser of this restriction choke is connected in gland centre bore by pin, and gland external screw thread connects central tube mouth of pipe inwall.In the reducing pipe of central tube bottom, be provided with the depression bar of the gland that is threaded, reducing pipe is outward by pressure cap stationary body.Main body outer wall connects fishing neck, slips and by semicircular ring with salvage the fixing cone seat of pin.Adapter sleeve endoporus upper end is threaded and bores seat, and lower end outer wall thread connects baffle ring, is provided with deblocking pawl in lower step hole, and deblocking pawl inner thread connects piston cylinder.Piston cylinder outer wall suit baffle ring and packing element, bottom outer lug boss connects cylinder, and cylinder end internal thread connects sand cap.Lower center tube is located in piston cylinder, top contact depression bar, and middle part outer wall gingival cyst of mucous gland in the newborn links and connects lock ring, and bottom is positioned at cylinder and external screw thread connects the fairlead that is positioned at sand cap.In fairlead, be provided with the air tap sleeve of spring and below thereof, air tap sleeve cylindrical shell is provided with valve, is equipped with rotates spline and drive splines by cylinder inner bearing on the axle core being supported.Fairlead below is spacer shell, and fixing by the guide head support of the sand cap bottom that is threaded, fairlead is connected location spline with spacer shell inner thread.
This restriction choke adopts single packing element sealing, packing element friction oil pipe when packing element energy of retraction is avoided carrying, and it is easier to make to salvage.When pit shaft air pressure change, by spline drived, automatically change throttling passage, regulate valve size, realize and do not salvage restriction choke state downward product, reduce production costs.
Accompanying drawing explanation
Fig. 1 is that rotary nozzle regulates underground throttle device structural representation automatically.
Fig. 2 is that rotary nozzle regulates air tap of underground throttle and drive splines schematic diagram automatically.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This restriction choke comprises dispenser 1, gland 2, central tube 3, depression bar 4, main body 5, fishing neck 6, slips 7, cone seat 8, semicircular ring 9, adapter sleeve 10, deblocking pawl 11, baffle ring 12, piston cylinder 13, packing element 14, lock ring 15, cylinder 16, lower center tube 17, sand cap 18, spring 19, fairlead 20, air tap sleeve 21, bearing 22, valve 23, axle core 24, rotates spline 25, location spline 26, drive splines 27, spacer shell 28 and guide head 29;
Dispenser 1 is connected in gland 2 centre bores by pin, and gland 2 external screw threads connect central tube 3 internal wall of pipe orifices.In central tube 3 bottom reducing pipes, be provided with the depression bar 4 of the gland 2 that is threaded, reducing pipe is outward by pressure cap stationary body 5.Main body 5 outer walls connect fishing necks 6, slips 7, by semicircular ring 9 with salvage the fixing cone seat 8 of pin.Adapter sleeve 10 endoporus upper ends are threaded and bore seat 8, and lower end outer wall thread connects baffle ring 12, is provided with deblocking pawl 11 in lower step hole, and deblocking pawl 11 inner threads connect piston cylinders 13.Piston cylinder 13 outer wall suit baffle ring 12 and packing elements 14, bottom outer lug boss connects cylinder 16, and cylinder 16 bottom internal threads connect sand cap 18.Lower center tube 17 is located in piston cylinder 13, top contact depression bar 4, and middle part outer wall gingival cyst of mucous gland in the newborn links and connects lock ring 15, and bottom is positioned at cylinder 16 and external screw thread connects the fairlead 20 that is positioned at sand cap 18.In fairlead 20, be provided with the air tap sleeve 21 of spring 19 and below thereof, air tap sleeve 21 cylindrical shells are provided with valve 23, on the axle core 24 being supported, are equipped with and rotate spline 25 and drive splines 27 by cylinder inner bearing 22.Fairlead 20 belows are spacer shells 28, and fixing by guide head 29 supports of sand cap 18 bottoms that are threaded, fairlead 20 is connected location spline 26 with spacer shell 28 inner threads.
The operating principle of this restriction choke is as follows:
1, throw in: after this restriction choke assembles, by steel wire, tool string and dispenser 1, throw in to projected depth, above carry tool string and make slips 6 and oil pipe engaging.In continuation, carry, input pin is cut off in jarring, in the relative main body 5 of dispenser 1, moves, and drives the dog of throwing in upper center tube 3 to throw off deblocking pawl 11, with tool string, trips out pit shaft, completes restriction choke and throws in.Pit shaft air pressure promotes to move on lower center tube 17 band dynamic air cylinders 16, makes packing element 14 expand and seal oil pipe.
2, automatically adjust valve:
Instrument enters after well input, open head valve, upstream air pressure is higher than downstream air pressure, promoting drive splines 27 moves axially, drive and rotate spline 25 disengaging location splines 26, the ratchet of location spline 26 end faces drives and rotates spline 25 rotations, changes the throttling passage of 20 of valve 23 and fairleads, completes throttling and regulates.
3, salvage:
By tool string, connect Special fishing tool and enter well, catch fishing neck 6, upwards jarring makes slips 7 depart from oil pipe, jarring force makes main body 5 band mantle seats 8, adapter sleeve 10 up together with baffle ring 12, cut off after the salvaging pin of 5 of cone seat 8 and main bodys, the relative displacement of generation and piston 13, makes packing element 14 retractions.
Claims (1)
1. rotary nozzle regulates a underground throttle device automatically, it is characterized in that:
The dispenser of this restriction choke (1) is connected in gland (2) centre bore by pin, and gland (2) external screw thread connects central tube (3) internal wall of pipe orifice; In the reducing pipe of central tube (3) bottom, be provided with the depression bar (4) of the gland that is threaded (2), reducing pipe is outward by pressure cap stationary body (5); Main body (5) outer wall connects fishing neck (6), slips (7), by semicircular ring (9) and the fixing cone seat (8) of salvaging pin; Adapter sleeve (10) endoporus upper end is threaded and bores seat (8), and lower end outer wall thread connects baffle ring (12), is provided with deblocking pawl (11) in lower step hole, and deblocking pawl (11) inner thread connects piston cylinder (13); Piston cylinder (13) outer wall suit baffle ring (12) and packing element (14), bottom outer lug boss connects cylinder (16), and cylinder (16) bottom internal thread connects sand cap (18); Lower center tube (17) is located in piston cylinder (13), top contact depression bar (4), middle part outer wall gingival cyst of mucous gland in the newborn links and connects lock ring (15), and bottom is positioned at cylinder (16) and external screw thread connects the fairlead (20) that is positioned at sand cap (18); In fairlead (20), be provided with the air tap sleeve (21) of spring (19) and below thereof, air tap sleeve (21) cylindrical shell is provided with valve (23), is equipped with rotates spline (25) and drive splines (27) by cylinder inner bearing (22) on the axle core (24) being supported; Fairlead (20) below is spacer shell (28), and fixing by guide head (29) support of the sand cap that is threaded (18) bottom, fairlead (20) is connected location spline (26) with spacer shell (28) inner thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607130.2U CN203515523U (en) | 2013-09-29 | 2013-09-29 | Downhole throttling device with rotary gas nipple and automatic adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607130.2U CN203515523U (en) | 2013-09-29 | 2013-09-29 | Downhole throttling device with rotary gas nipple and automatic adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515523U true CN203515523U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320607130.2U Expired - Fee Related CN203515523U (en) | 2013-09-29 | 2013-09-29 | Downhole throttling device with rotary gas nipple and automatic adjustment function |
Country Status (1)
| Country | Link |
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| CN (1) | CN203515523U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514529B (en) * | 2013-09-29 | 2017-01-25 | 中国石油天然气股份有限公司 | Rotary type downhole throttler with self-regulation gas nozzle |
| CN106988709A (en) * | 2017-05-22 | 2017-07-28 | 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 underground real-time, tunable throttling technique |
| CN111042778A (en) * | 2019-11-26 | 2020-04-21 | 宝鸡瑞林石油机电设备有限责任公司 | Multiple-time seat-seal preset type throttler |
| CN114526033A (en) * | 2022-02-28 | 2022-05-24 | 中国石油大学(华东) | Pin guide rail rotary type multistage downhole inflow control valve |
-
2013
- 2013-09-29 CN CN201320607130.2U patent/CN203515523U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514529B (en) * | 2013-09-29 | 2017-01-25 | 中国石油天然气股份有限公司 | Rotary type downhole throttler with self-regulation gas nozzle |
| CN106988709A (en) * | 2017-05-22 | 2017-07-28 | 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 underground real-time, tunable throttling technique |
| CN106988709B (en) * | 2017-05-22 | 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 underground real-time, tunable throttling technique |
| CN111042778A (en) * | 2019-11-26 | 2020-04-21 | 宝鸡瑞林石油机电设备有限责任公司 | Multiple-time seat-seal preset type throttler |
| CN114526033A (en) * | 2022-02-28 | 2022-05-24 | 中国石油大学(华东) | Pin guide rail rotary type multistage downhole inflow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140402 Termination date: 20210929 |