CN104514529A - Rotary type downhole throttle with automatic air nozzle adjustment function - Google Patents
Rotary type downhole throttle with automatic air nozzle adjustment function Download PDFInfo
- Publication number
- CN104514529A CN104514529A CN201310454283.2A CN201310454283A CN104514529A CN 104514529 A CN104514529 A CN 104514529A CN 201310454283 A CN201310454283 A CN 201310454283A CN 104514529 A CN104514529 A CN 104514529A
- Authority
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- China
- Prior art keywords
- cylinder
- spline
- gland
- connects
- fairlead
- 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.)
- Granted
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 10
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 206010055018 Gingival cyst Diseases 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 2
- 210000000078 claw Anatomy 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a rotary type downhole choke with an automatically adjusted air tap, which is designed for realizing gas well yield allocation under the condition of not fishing out the choke. Be equipped with on this throttleer and put ware, gland, depression bar, main part, salvage neck, slips, taper seat, fender ring, deblocking claw, piston cylinder, packing element, cylinder, sand control cover and lower center tube, be equipped with the spring in the uide bushing in the sand control cover and be equipped with the air cock cover of air cock, be equipped with rotation spline and transmission spline on the axle core in the air cock cover, be equipped with the positioning spline in the uide bushing. The throttle is sealed by adopting a single rubber cylinder, and the rubber cylinder retracts to avoid the friction of the rubber cylinder on an oil pipe when being lifted, so that the fishing is easier. When the air pressure of the shaft changes, the throttling channel is automatically changed through spline transmission, the size of the air tap is adjusted, production adjustment is realized under the condition that the throttler is not fished, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of rotary nozzle and automatically regulate underground throttle device, belong to production gas technology field, oil field.
Background technology
Downhole choke technology utilizes underground throttle device to realize pit shaft reducing pressure by regulating flow, utilizes ground temperature to heat and 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 liquid loading process, pit shaft and ground exist.
At Soviet Union's Sulige gas field, downhole choke technology, by preventing gas hydrates develop to the pressure reducing well head and surface gathering system, optimizes ground flow.
At Changqing oilfields, along with continuing to increase of horizontal well development dynamics, the application of underground throttle device gets 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 to adjust at any time at the feature, conventional restriction choke exposes inadaptability when 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 fishing construction volume increase etc. thrown in by restriction choke.
Summary of the invention
A kind of rotary nozzle is the object of the present invention is to provide automatically to regulate underground throttle device, to realize not salvaging the allotment of the gas well output in restriction choke situation.
Concrete technology contents of the present invention 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 internal wall of pipe orifice.Be provided with the depression bar of the gland that is threaded in the reducing pipe of central tube bottom, reducing pipe is outward by pressure cap stationary body.The cone seat that body outer wall connects fishing neck, slips and fixed by semicircular ring and salvaging pin.Adapter sleeve endoporus threaded upper ends connects cone seat, and lower end outer wall is threaded 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, tip 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 being positioned at sand cap.Be provided with the air tap sleeve of spring and below thereof in fairlead, air tap sleeve cylindrical shell is provided with valve, the axle core supported is equipped with rotates spline and drive splines by cylinder inner bearing.Be spacer shell below fairlead, support fixing by the guide head 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 to seal, and when packing element energy of retraction is avoided carrying, packing element friction oil pipe, makes salvaging easier.When pit shaft air pressure change, by spline drived, automatically change throttling passage, regulate valve size, realize not salvaging restriction choke state and lower product, reduce cost of production.
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.
Detailed description of the invention
Embodiment:
With reference to Fig. 1, embodiments of the invention are 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 bore by pin, and gland 2 external screw thread connects central tube 3 internal wall of pipe orifice.Be provided with the depression bar 4 of the gland 2 that is threaded in the reducing pipe of central tube 3 bottom, reducing pipe is outward by pressure cap stationary body 5.Main body 5 outer wall connection fishing neck 6, slips 7, the cone seat 8 fixed by semicircular ring 9 and salvaging pin.Adapter sleeve 10 endoporus threaded upper ends connects cone seat 8, and lower end outer wall is threaded 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, tip 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 being positioned at sand cap 18.Be provided with the air tap sleeve 21 of spring 19 and below thereof in fairlead 20, air tap sleeve 21 cylindrical shell is provided with valve 23, the axle core 24 supported is equipped with rotates spline 25 and drive splines 27 by cylinder inner bearing 22.Be spacer shell 28 below fairlead 20, support fixing by the guide head 29 of sand cap 18 bottom that is threaded, fairlead 20 is connected location spline 26 with spacer shell 28 inner thread.
The operating principle of this restriction choke is as follows:
1, throw in: after this restriction choke assembles, throw in projected depth by steel wire, tool string and dispenser 1, above carry tool string and make slips 6 and oil pipe locking.Continuation is carried, and input pin is cut off in jarring, and dispenser 1 opposing body 5 moves, and drives the dog throwing in upper center tube 3 to throw off deblocking pawl 11, trips out pit shaft with tool string, complete restriction choke and throw in.Pit shaft air pressure promotion lower center tube 17 is with on dynamic air cylinder 16 and is moved, and makes packing element 14 expand and seal oil pipe.
2, automatically valve is adjusted:
After instrument enters well input, open head valve, upstream air pressure is higher than downstream air pressure, promote drive splines 27 to move axially, drive and rotate spline 25 disengaging location spline 26, the ratchet of location spline 26 end face drives rotation spline 25 to rotate, and changes the throttling passage between valve 23 and fairlead 20, completes flow restriction control.
3, salvage:
Connect Special fishing tool by tool string and enter well, catch fishing neck 6, upwards jarring makes slips 7 depart from oil pipe, jarring force makes main body 5 be with mantle seat 8, adapter sleeve 10 up together with baffle ring 12, after cutting off the salvaging pin between cone seat 8 and main body 5, produce the relative displacement with piston 13, packing element 14 is bounced back.
Claims (1)
1. rotary nozzle regulates a underground throttle device automatically, it is characterized in that:
The dispenser (1) of this restriction choke is connected in gland (2) centre bore by pin, and gland (2) external screw thread connects central tube (3) internal wall of pipe orifice; Be provided with the depression bar (4) of the gland that is threaded (2) in the reducing pipe of central tube (3) bottom, reducing pipe is outward by pressure cap stationary body (5); Main body (5) outer wall connection fishing neck (6), slips (7), the cone seat (8) fixed by semicircular ring (9) and salvaging pin; Adapter sleeve (10) endoporus threaded upper ends connects cone seat (8), lower end outer wall is threaded baffle ring (12), be provided with deblocking pawl (11) in lower step hole, 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), tip 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) being positioned at sand cap (18); The air tap sleeve (21) of spring (19) and below thereof is provided with in fairlead (20), air tap sleeve (21) cylindrical shell is provided with valve (23), the axle core (24) supported is equipped with rotates spline (25) and drive splines (27) by cylinder inner bearing (22); Fairlead (20) below is spacer shell (28), support fixing by the guide head (29) 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 |
|---|---|---|---|
| CN201310454283.2A CN104514529B (en) | 2013-09-29 | 2013-09-29 | Rotary type downhole throttle with automatic air nozzle adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454283.2A CN104514529B (en) | 2013-09-29 | 2013-09-29 | Rotary type downhole throttle with automatic air nozzle adjustment function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514529A true CN104514529A (en) | 2015-04-15 |
| CN104514529B CN104514529B (en) | 2017-01-25 |
Family
ID=52790356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310454283.2A Active CN104514529B (en) | 2013-09-29 | 2013-09-29 | Rotary type downhole throttle with automatic air nozzle adjustment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514529B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014356A (en) * | 2016-07-12 | 2016-10-12 | 泸州聚源石油科技有限公司 | Sand-controlled movable type downhole throttle capable of balancing pressure |
| CN107035347A (en) * | 2017-05-11 | 2017-08-11 | 西安思坦仪器股份有限公司 | A kind of valve regulating system of underground throttle device |
| CN112343564A (en) * | 2020-11-03 | 2021-02-09 | 中国石油天然气股份有限公司 | Gas well underground throttler air faucet automatic falling mechanism and use method |
| CN114687690A (en) * | 2022-03-31 | 2022-07-01 | 中海石油(中国)有限公司 | Slip setting mechanism and underground throttle comprising same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111608A (en) * | 1975-04-07 | 1978-09-05 | Schlumberger Technology Corporation | Gas lift system |
| CN201982071U (en) * | 2011-01-25 | 2011-09-21 | 北京金科龙石油技术开发有限公司 | Multi-nozzle transposition throttling device |
| 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 |
| CN202745835U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Anti-sliding single rubber barrel underground throttling device |
| CN203515523U (en) * | 2013-09-29 | 2014-04-02 | 中国石油天然气股份有限公司 | Rotary type downhole throttle with automatic air nozzle adjustment function |
-
2013
- 2013-09-29 CN CN201310454283.2A patent/CN104514529B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014356A (en) * | 2016-07-12 | 2016-10-12 | 泸州聚源石油科技有限公司 | Sand-controlled movable type downhole throttle capable of balancing pressure |
| CN106014356B (en) * | 2016-07-12 | 2018-09-25 | 泸州聚源石油科技有限公司 | Pressure sand-proof type movable underground throttle can be balanced |
| CN107035347A (en) * | 2017-05-11 | 2017-08-11 | 西安思坦仪器股份有限公司 | A kind of valve regulating system of underground throttle device |
| CN112343564A (en) * | 2020-11-03 | 2021-02-09 | 中国石油天然气股份有限公司 | Gas well underground throttler air faucet automatic falling mechanism and use method |
| CN114687690A (en) * | 2022-03-31 | 2022-07-01 | 中海石油(中国)有限公司 | Slip setting mechanism and underground throttle comprising same |
| CN114687690B (en) * | 2022-03-31 | 2024-03-29 | 中海石油(中国)有限公司 | Slip setting mechanism and downhole throttler comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514529B (en) | 2017-01-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |