CN103541698A - Gas well underground fixed yield throttling production device - Google Patents
Gas well underground fixed yield throttling production device Download PDFInfo
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- CN103541698A CN103541698A CN201210241377.7A CN201210241377A CN103541698A CN 103541698 A CN103541698 A CN 103541698A CN 201210241377 A CN201210241377 A CN 201210241377A CN 103541698 A CN103541698 A CN 103541698A
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Abstract
The invention discloses a gas well underground fixed yield throttling production device which is designed in order to solve the problem that yields of a fixed yield throttler are reduced, and frequent salvage needs to be carried out. The device mainly comprises a locking sleeve connecting a feeder and a body, a salvage head where the body is arranged in a sleeved mode, a slip, a slip supporting sleeve, a slip positioning sleeve, a lock sleeve connected with the positioning sleeve, a central barrel connected with the lower end of the locking sleeve, a rubber barrel where the central barrel is arranged in a sleeved mode, a large air hole, a medium air hole, a small air hole, a valve body connected with the bottom end of the central barrel, a transmission rod arranged in the valve body, a valve element, an adjustment spring and a sand-preventing cover connecting the central barrel with a blocking head, wherein the large air hole, the medium air hole and the small air hole are formed in the barrel wall of the central barrel, and the valve element and the adjustment spring are connected with the transmission rod. After the device is arranged, well opening is carried out, with reduction of air well pressure, the adjustment spring pulls the transmission rod and the valve element to move downwards, the large air hole, the medium air hole and the small air hole are sequentially opened, and production can be carried out. According to the production device, the pressure difference before and after throttling can be fully used, the diameter of an air nozzle is adjusted, fixed yield production of the gas well can be carried out, the salvage times of the throttler are greatly reduced, and manpower, material resources and financial resources are saved.
Description
Technical field
The present invention relates to a kind of gas well down-hole fixed output quota amount throttling process units, belong to production gas technology field, oil field.
Background technology
Downhole choke technology is to rely on downhole choke device to realize pit shaft reducing pressure by regulating flow, utilizes ground temperature heating to make the gas flow temperature of well head after throttling substantially return to the temperature before throttling, to solve many technical barriers that in gas well manufacturing process, pit shaft and ground exist.
At Soviet Union's Sulige gas field, the application of downhole choke technology reduces well head and surface gathering system pressure by preventing that gas hydrates from forming to develop into, and has optimized ground flow, becomes the key technology of Soviet Union's Sulige gas field exploitation.
Soviet Union's Sulige gas field initial stage gas well pressure of going into operation is high, but along with the production of gas well, pressure drop is very fast, and high pressure is short campaign.At present, the fixedly valve restriction choke of input is all fixed output quota amount, and along with the decline of gas well pressure, output obviously reduces, often need to be for adjusting product and changing valve and salvage restriction choke.Salvage the restriction choke not losing efficacy more difficult, both affected gas well and normally produced, take time and effort again.
Summary of the invention
The object of the present invention is to provide a kind of gas well down-hole fixed output quota amount throttling process units, it utilizes gas well upstream pressure to regulate the mode of valve diameter to control output, good airproof performance, and application life is stable, and the Efficient Development that can be gas field provides technical support.
Concrete technical scheme of the present invention is as follows:
Dispenser inserts locking cover central through hole, and by radially pin and bottom lock nut are fixed.
Locking cover outer wall suit body, body top connects baffle ring, next coming in order suit fishing head, slips and slips support set.Slips top snaps in fishing head link slot, and is fixed in body outer wall slip spider by lock tube, and slips support set is fixed on body outer wall by salvaging pin.Body lower end connecting positioning sleeve, positioning sleeve outer wall convex shoulder stretches into slips support set inboard wall groove.Lock tube upper surface contact positioning sleeve convex shoulder, upper and lower end boss snapping slips support set groove inwall, lower end inwall connects gingival cyst of mucous gland in the newborn button.
Central tube top outer wall connects gingival cyst of mucous gland in the newborn button, inboard wall groove snapping locking cover lower end outer wall boss.Central tube external wall of upper portion socket packing element, bottom barrel is provided with large, medium and small air vent radially.
Valve body upper end inwall connects central tube, and lower end inwall connects stopper.Drive link top outer wall is connected with the spool of axially extending bore, regulating spring suit drive link, and spacing by drive link outer wall convex shoulder and valve interior wall convex shoulder.
Sand cap upper end connects central tube middle part convex shoulder outer wall, and lower end connects stopper bottom outer wall.
After gas well of the present invention down-hole fixed output quota amount throttling process units is thrown in and to be driven a well, spool and drive link are subject to upstream and downstream pressure reduction up, in closing center's cylinder, large air vent, only limit little air vent to open production; Along with the reduction of gas well pressure, regulating spring starts effect, promotes drive link and spool and moves down, and makes air vent in central tube open production; Along with the further reduction of gas well pressure, the large air vent of central tube is finally opened production.Apparatus of the present invention can make full use of the pressure reduction before and after throttling, regulate valve diameter, control gas well and determine yield production, can greatly reduce restriction choke and throw in fishing number of times, save human and material resources and financial resources.
Accompanying drawing explanation
Fig. 1 is gas well down-hole fixed output quota amount throttling process units structural representation.
The specific embodiment
With reference to Fig. 1, embodiments of the invention are further illustrated:
Embodiment:
Gas well of the present invention down-hole fixed output quota amount throttling process units by dispenser 1, radially pin 2, locking cover 3, baffle ring 4, body 5, fishing head 6, slips 7, lock tube 8, salvage pin 9, slips support set 10, positioning sleeve 11, lock tube 12, gingival cyst of mucous gland in the newborn button 13, bottom lock nut 14, packing element 15, central tube 16, spool 17, drive link 18, regulating spring 19, valve body 20, sand cap 21 and stopper 22 and form:
Dispenser 1 inserts locking cover 3 central through holes, and by radially pin 2 and bottom lock nut 14 are fixing.
Locking cover 3 outer wall suit bodies 5, body 5 top screwed connection baffle rings 4, next coming in order suit fishing head 6, slips 7 and slips support set 10.Slips 7 tops snap in fishing head 6 link slots, and are fixed in body 5 outer wall slip spiders by lock tube 8, and slips support set 10 is fixed on body 5 outer walls by salvaging pin 9.
Body 5 lower end screwed connection positioning sleeves 11, positioning sleeve 11 outer wall convex shoulders stretch into slips support set 10 inboard wall grooves.Lock tube 12 upper surface contact positioning sleeve 11 convex shoulders, upper and lower end boss snapping slips support set 10 groove inwalls, lower end inwall screwed connection gingival cyst of mucous gland in the newborn button 13.
Sand cap 21 upper end screwed connection central tube 16 middle part convex shoulder outer walls, lower end screwed connection stopper 22 bottom outer walls.
Assembling of the present invention and the course of work are as follows:
1. assembling
Dispenser 1 is inserted in locking cover 3, by bottom lock nut 14 and radially pin 2 fix.
Fishing head 6 is enclosed within to body 5 outer walls, screws on baffle ring 4.Slips 7 upper ends are embedded to fishing head 6, and locked by lock tube 8.Body 5 is enclosed within on locking cover 3, with salvaging pin 9, slips support set 10 is fixed on body 5, in body 5 lower ends, tighten positioning sleeve 11.At lock tube 12, and pack 13 screwed connections of gingival cyst of mucous gland in the newborn button into support set 10 grooves.
By central tube 16 upper end screwed connection gingival cyst of mucous gland in the newborn buttons 13 and locking cover 3, packing element 15 is enclosed within on central tube 16.
Regulating spring 19, valve body 20 are enclosed within to drive link 18 outer walls, load onto spool 17, integral body packs into from central tube 16 lower ends, tightens valve body 20 and central tube 16, tightens stopper 22 and valve body 20, tightens sand cap 21 and stopper 22 and central tube 16.
2, throw in
Steel wire operation connects dispenser 1 by tool string, and throttling arrangement is lowered to projected depth, above carries tool string and makes slips 7 and oil pipe engaging, in continuation, carries, and dispenser 1 drives on central tube 16 and moves with locking cover 3, compression packing element 15 sealing oil pipes.In continuation, carry, cut off radially pin 2, dispenser 1 relatively locking cover 3 moves up, and relies on lock nut 14 to drive locking cover 3 to throw off central tube 16, with tool string, trips out pit shaft, and finishing device is thrown in.
3, salvage
By tool string, connect Special fishing tool and enter well and catch fishing head 6, upwards jarring departs from slips 7 and oil pipe, and the jarring force making progress is cut off and salvaged after pin 9, and body 5 drives positioning sleeves 11 up.Positioning sleeve 11 convex shoulders drive slips support set 10 disengaging lock tubes 12 up, leave packing element 15, make its retraction.
Claims (2)
1. a gas well down-hole fixed output quota amount throttling process units, is characterized in that:
Dispenser (1) inserts locking cover (3) central through hole, and by radially pin (2) and bottom lock nut (14) are fixing;
Locking cover (3) outer wall suit body (5), body (5) top connects baffle ring (4), next coming in order suit fishing head (6), slips (7) and slips support set (10); Slips (7) top snaps in fishing head (6) link slot, and is fixed in body (5) outer wall slip spider by lock tube (8), and slips support set (10) is fixed on body (5) outer wall by salvaging pin (9);
Body (5) lower end connecting positioning sleeve (11), positioning sleeve (11) outer wall convex shoulder stretches into slips support set (10) inboard wall groove; Lock tube (12) upper surface contact positioning sleeve (11) convex shoulder, upper and lower end boss snapping slips support set (10) groove inwall, lower end inwall connects gingival cyst of mucous gland in the newborn button (13);
Central tube (16) top outer wall connects gingival cyst of mucous gland in the newborn button (13), inboard wall groove snapping locking cover (3) lower end outer wall boss; Central tube (16) external wall of upper portion socket packing element (15), bottom barrel is provided with large, medium and small air vent radially;
Valve body (20) upper end inwall connects central tube (16), and lower end inwall connects stopper (22); Drive link (18) top outer wall is connected with the spool (17) of axially extending bore, regulating spring (19) suit drive link (18), and spacing by drive link (18) outer wall convex shoulder and valve body (20) inwall convex shoulder;
Sand cap (21) upper end connects central tube (16) middle part convex shoulder outer wall, and lower end connects stopper (22) bottom outer wall.
2. gas well as claimed in claim 1 down-hole fixed output quota amount throttling process units, after it is characterized in that apparatus of the present invention input drives a well, continuous reduction along with gas well pressure, regulating spring (19) pulls drive link (18) and spool (17) to move down, make little, in, large air vent opens production in succession, utilize the pressure reduction of throttling front and back, regulate valve diameter, control gas well and determine yield production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241377.7A CN103541698B (en) | 2012-07-12 | 2012-07-12 | Gas well down-hole fixed output quota amount throttling process units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241377.7A CN103541698B (en) | 2012-07-12 | 2012-07-12 | Gas well down-hole fixed output quota amount throttling process units |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103541698A true CN103541698A (en) | 2014-01-29 |
| CN103541698B CN103541698B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210241377.7A Active CN103541698B (en) | 2012-07-12 | 2012-07-12 | Gas well down-hole fixed output quota amount throttling process units |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453796A (en) * | 2014-12-01 | 2015-03-25 | 中国石油天然气股份有限公司 | Intelligent water drainage and gas production device for gas well |
| CN105370252A (en) * | 2014-08-25 | 2016-03-02 | 中国石油天然气股份有限公司 | Method and equipment for exploiting gas-condensate well |
| CN108894760A (en) * | 2018-09-03 | 2018-11-27 | 中国石油集团川庆钻探工程有限公司 | A kind of gas well liquid loading valve pipe mating type underground throttle device and its application method |
| CN111206899A (en) * | 2020-01-07 | 2020-05-29 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
| CN111502611A (en) * | 2020-04-07 | 2020-08-07 | 大庆油田有限责任公司 | Mechanical gas well adjustable choke and adjusting method |
| 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 |
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| US3814181A (en) * | 1972-12-29 | 1974-06-04 | Schlumberger Technology Corp | Ambient pressure responsive safety valve |
| CN2521392Y (en) * | 2001-12-17 | 2002-11-20 | 中国石油天然气股份有限公司 | Underwall multifunction controller for natural gas well |
| CN201428440Y (en) * | 2009-02-18 | 2010-03-24 | 韩兴刚 | Minor-diameter downhole throttling device for gas well |
| CN201439711U (en) * | 2009-07-20 | 2010-04-21 | 中国石油天然气股份有限公司 | Self-locking V-shaped underground sealing throttle |
| CN101798913A (en) * | 2010-03-10 | 2010-08-11 | 中国石油天然气股份有限公司 | Differential pressure underground throttle device |
| CN201627572U (en) * | 2010-02-25 | 2010-11-10 | 中国石油天然气股份有限公司 | Downhole choke |
| CN201756953U (en) * | 2010-08-27 | 2011-03-09 | 广汉市丰业石油技术开发有限公司 | Underground throttle of gas well |
| CN202187750U (en) * | 2011-08-03 | 2012-04-11 | 北京金科龙石油技术开发有限公司 | Preset type underground throttling device |
| CN202832431U (en) * | 2012-07-12 | 2013-03-27 | 中国石油天然气股份有限公司 | Constant production throttling production device under gas well |
-
2012
- 2012-07-12 CN CN201210241377.7A patent/CN103541698B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814181A (en) * | 1972-12-29 | 1974-06-04 | Schlumberger Technology Corp | Ambient pressure responsive safety valve |
| CN2521392Y (en) * | 2001-12-17 | 2002-11-20 | 中国石油天然气股份有限公司 | Underwall multifunction controller for natural gas well |
| CN201428440Y (en) * | 2009-02-18 | 2010-03-24 | 韩兴刚 | Minor-diameter downhole throttling device for gas well |
| CN201439711U (en) * | 2009-07-20 | 2010-04-21 | 中国石油天然气股份有限公司 | Self-locking V-shaped underground sealing throttle |
| CN201627572U (en) * | 2010-02-25 | 2010-11-10 | 中国石油天然气股份有限公司 | Downhole choke |
| CN101798913A (en) * | 2010-03-10 | 2010-08-11 | 中国石油天然气股份有限公司 | Differential pressure underground throttle device |
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| CN202187750U (en) * | 2011-08-03 | 2012-04-11 | 北京金科龙石油技术开发有限公司 | Preset type underground throttling device |
| CN202832431U (en) * | 2012-07-12 | 2013-03-27 | 中国石油天然气股份有限公司 | Constant production throttling production device under gas well |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370252A (en) * | 2014-08-25 | 2016-03-02 | 中国石油天然气股份有限公司 | Method and equipment for exploiting gas-condensate well |
| CN105370252B (en) * | 2014-08-25 | 2017-11-10 | 中国石油天然气股份有限公司 | Condensate gas well recovery method and equipment |
| CN104453796A (en) * | 2014-12-01 | 2015-03-25 | 中国石油天然气股份有限公司 | Intelligent water drainage and gas production device for gas well |
| CN104453796B (en) * | 2014-12-01 | 2017-01-18 | 中国石油天然气股份有限公司 | Intelligent water drainage and gas production device for gas well |
| CN108894760A (en) * | 2018-09-03 | 2018-11-27 | 中国石油集团川庆钻探工程有限公司 | A kind of gas well liquid loading valve pipe mating type underground throttle device and its application method |
| CN111206899A (en) * | 2020-01-07 | 2020-05-29 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
| CN111502611A (en) * | 2020-04-07 | 2020-08-07 | 大庆油田有限责任公司 | Mechanical gas well adjustable choke and adjusting method |
| CN111502611B (en) * | 2020-04-07 | 2022-04-26 | 大庆油田有限责任公司 | Mechanical gas well adjustable choke and adjusting method |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103541698B (en) | 2016-01-20 |
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