CN201103378Y - Gas lift valve for fast liquor drainage after oil-gas field high pressure operation - Google Patents
Gas lift valve for fast liquor drainage after oil-gas field high pressure operation Download PDFInfo
- Publication number
- CN201103378Y CN201103378Y CN200720173933.6U CN200720173933U CN201103378Y CN 201103378 Y CN201103378 Y CN 201103378Y CN 200720173933 U CN200720173933 U CN 200720173933U CN 201103378 Y CN201103378 Y CN 201103378Y
- Authority
- CN
- China
- Prior art keywords
- bellows
- bellow
- valve
- gas lift
- lift valve
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004636 vulcanized rubber Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 38
- 210000002445 nipple Anatomy 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding 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
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
- E21B43/123—Gas lift valves
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)
- Details Of Valves (AREA)
Abstract
The utility model relates to a gas lift valve used for rapid fluid discharge after the high-pressure operation in oil and gas fields and is applied to gas lift oil production in oilfields. The utility model essentially consists of a bellow assembly, a valve assembly, a valve base, a lower body and a lower joint. The bellow assembly includes a bellow upper body, a bellow guide bar, a bellow and a bellow lower body. The utility model is characterized in that the bellow adopts a three-layer structure and is made of 1Cr18Ni9Ti material, with the wall thickness of each layer being 0.5mm. The upper end of the bellow is welded on the joint surface of the bellow upper body and the bellow guide bar and also welded on the bellow upper body. The gas lift valve of the utility model has the advantages that the overall compressive resistant ability of the lift valve is increased from 35MPa to 55MPa. The gas lift valve is also arranged in a centrifugal fixed working cylinder of high-pressure operating pipes in oil and gas fields to provide bypassing channels and discharge remaining fluid from the well bottom quickly. Therefore, the gas lift valve can shorten the staying time of remaining fluid in stratums, avoid secondary pollution to oil layers and has higher flowback rate.
Description
Technical field
The utility model relates to oil well gaslift oil recovery technique field, particularly a kind of gas lift valve of quick fluid-discharge.The oil gas well of discharge opeing after being used for ultradeep well and needing operations involving high pressure (pressure break or acid fracturing), be in a kind of fixed seating nipple of eccentric high pressure that is installed in the oil gas field operations involving high pressure tubing string, be used to provide flow channels and realize that the shaft bottom raffinate discharges the control device of pit shaft fast, also claim high pressure fixed gas lift valve.
Technical background
Gas lift valve is a core instrument of realizing gas-lift production, discharge opeing.At present, domestic application mainly be the retrievable type gas lift valve, the bellows thickness that conventional gas lift valve adopts is 0.3 millimeter, makes gas lift valve bear extraneous pressure energy power generally below 35MPa, can not satisfy the instructions for use under the oil gas field operations involving high pressure condition.
Chinese patent notification number CN2782924Y provides a kind of high pressure resistant gas lift valve.Seal is being housed on the inwall on the middle valve body, on be sealed into annular, the lower seal body is housed on the valve head, the lower seal body is a truncated cone-shaped, lower seal body and valve head are integral, and can move up and down with valve head.Be provided with upper and lower seal in middle valve body, avoid gases at high pressure to act directly on the bellows, the protection bellows reaches the purpose of gaslift discharge opeing, solves ultradeep well hydrops problem.
The utility model content
The purpose of this utility model is: a kind of gas lift valve that is used for quick fluid-discharge behind the oil gas field operations involving high pressure is provided, has higher bearing capacity, promptly the outer pressure resistance of gas lift valve and sealing performance can satisfy the requirement of operations involving high pressure ambient conditions.And gas lift valve is installed in the fixed seating nipple of supporting high pressure goes into the well for one time with the operations involving high pressure tubing string, after finishing, operations involving high pressure do not trip out tubing string, directly adopt the mode of annular space nitrogen injection as flow channels by this gas lift valve, fast entry well fluid is discharged pit shaft, avoid raffinate that oil reservoir is caused secondary pollution, improve the row of returning and lead, in time discharge the difficult problem of hydrops behind the solution oil gas field operations involving high pressure.
The technical solution adopted in the utility model is: be used for the gas lift valve of quick fluid-discharge behind the oil gas field operations involving high pressure, mainly be made up of bellows assembly, valve head assembly, valve seat, lower body and lower contact.The bellows assembly comprises bellows upper body, bellows guide peg, bellows and bellows lower body.In the centre bore of the upper end of bellows upper body, spool is arranged.The lower end outer wall of bellows upper body is connected with the bellows sleeve.Bellows sleeve lower end is connected with lower body.On the bellows sleeve air inlet is arranged.It is characterized in that: bellows adopts three layers of bellows structure, and bellows is selected the 1Cr18Ni9Ti material for use, and every layer of bellows wall thickness strengthened the outer pressure resistance of bellows between 0.45-0.5mm.The bellows upper end is welded on vertical bonding surface of bellows upper body and bellows guide peg, and the bellows upper end also is welded on the bellows upper body.This welded construction has guaranteed the bellows firm welding, and the position is accurate.
In order to improve the gas lift valve bearing capacity be used for quick fluid-discharge behind the oil gas field operations involving high pressure better, improve bellows (inflatable air chamber) bearing capacity, described lower body has centre bore, in lower body centre bore lower end ball-and-seat is arranged.The valve body of ball-and-seat and the sealing surface between the lower body are taper seat.The vulcanized rubber joint ring is arranged on the taper seat of valve body.There is the compression spring lower end of valve body.Make the entire compression ability of gas lift valve bring up to 55MPa by 35MPa.
This fixed gas lift valve and conventional fixed gas lift valve functional similarity, difference is to be installed in the fixed seating nipple that is used for the operations involving high pressure tubing string, requires gas lift valve must be able to bear the needed high pressure of operations involving high pressure, promptly possesses high-voltage resistance capability.
The beneficial effects of the utility model are: the gas lift valve that is used for quick fluid-discharge behind the oil gas field operations involving high pressure, by improving technical measures such as bellows (inflatable air chamber), supporting ball-and-seat bearing capacity, adopt unique welded construction and heavy wall bellows design, supporting ball-and-seat adopts affixed vulcanized rubber structure, make the entire compression ability of gas lift valve bring up to 55MPa by 35MPa, satisfied the requirement of operations involving high pressure, thereby reach the purpose of gaslift quick fluid-discharge, solved the difficult problem of operations involving high pressure well hydrops effectively.It is installed in the eccentric fixed seating nipple in the oil gas field operations involving high pressure tubing string, is used to provide flow channels and realizes that the shaft bottom raffinate discharges pit shaft fast.Shorten raffinate in the holdup time on stratum, avoid oil reservoir is caused secondary pollution, the row of returning leads height, has improved the oil-gas field development effect.
Description of drawings
Accompanying drawing 1 is the structural profile schematic diagram that the utility model is used for the gas lift valve of quick fluid-discharge behind the oil gas field operations involving high pressure.
Among the figure: 1. tail is stifled, 2.O type circle, 3. copper packing, 4. spool, 5. bellows sleeve, 6. bellows assembly, 7. valve head assembly, 8. circlip, 9.O type circle, 10. valve seat, 11. lower bodies, 12. joint rings, 13. valve bodies, 14. springs, 15. lower contacts, 16. air inlets;
6-1. the bellows upper body, 6-2. bellows guide peg, 6-3. bellows, 6-4. bellows lower body.
The specific embodiment
Embodiment 1: consult Fig. 1.Be used for the gas lift valve of quick fluid-discharge behind the oil gas field operations involving high pressure, mainly form by bellows assembly 6, valve head assembly 7, valve seat 10, lower body 11 and lower contact 15.Bellows assembly 6 comprises a bellows upper body 6-1, bellows guide peg 6-2, a bellows 6-3 and a bellows lower body 6-4.The external diameter of bellows upper body 6-1 is 25.4 millimeters, in the upper end centre bore of bellows upper body 6-1 spool 4 is arranged.Spool 4 tops have tail to block up 1, and tail stifled 1 and bellows upper body 6-1 have O type circle 2 and copper packing 3, play sealing function.
The lower end outer wall of bellows upper body 6-1 is connected with bellows sleeve 5.Bellows sleeve 5 lower ends are connected with lower body 11.4 air inlets 16 are arranged on the bellows sleeve 5.Bellows 6-3 adopts three layers of bellows structure, and bellows 6-3 selects the 1Cr18Ni9Ti material for use, every layer of bellows wall thickness 0.5mm.Bellows 6-3 upper end is welded on vertical bonding surface of bellows upper body 6-1 and bellows guide peg 6-2, and bellows 6-3 upper end also is welded on the 6-1 of bellows upper body.
Described lower body 11 has centre bore, in lower body 11 centre bore lower ends a ball-and-seat is arranged.The valve body 13 and the sealing surface between the lower body 11 of ball-and-seat are taper seat.Vulcanized rubber joint ring 12 is arranged on the taper seat of valve body 13.There is compression spring 14 lower end of valve body 13.The valve body 13 of ball-and-seat and compression spring 14 are in lower contact 15.Lower contact 15 is connected the lower end of lower body 11.
The operating principle that is used for the gas lift valve of quick fluid-discharge behind the oil gas field operations involving high pressure: gaslift is returned row and is adopted the casing pressure operating valve, and it is opened and close by the cover pressure-controlled, and not influenced by oil jacket pressure reduction, and when casing pressure was higher than inflatable air chamber pressure, valve was opened, otherwise, then close.
Claims (2)
1. gas lift valve that is used for quick fluid-discharge behind the oil gas field operations involving high pressure, mainly by bellows assembly (6), valve head assembly (7), valve seat (10), lower body (11) and lower contact (15) are formed, bellows assembly (6) comprises bellows upper body (6-1), bellows guide peg (6-2), bellows (6-3) and bellows lower body (6-4), spool (4) is arranged in the upper end centre bore of bellows upper body (6-1), the lower end outer wall of bellows upper body (6-1) is connected with bellows sleeve (5), bellows sleeve (5) lower end is connected with lower body (11), air inlet (16) is arranged on the bellows sleeve (5), it is characterized in that: bellows (6-3) adopts three layers of bellows structure, bellows (6-3) is selected the 1Cr18Ni9Ti material for use, between every layer of bellows wall thickness 0.45-0.5mm, bellows (6-3) upper end is welded on vertical bonding surface of bellows upper body (6-1) and bellows guide peg (6-2), and bellows (6-3) upper end also is welded on the bellows upper body (6-1).
2. a kind of gas lift valve that is used for quick fluid-discharge behind the oil gas field operations involving high pressure according to claim 1, it is characterized in that: described lower body (11) has centre bore, in lower body (11) centre bore lower end ball-and-seat is arranged, sealing surface between valve body of ball-and-seat (13) and the lower body (11) is a taper seat, vulcanized rubber joint ring (12) is arranged on the taper seat of valve body (13), and there is compression spring (14) lower end of valve body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720173933.6U CN201103378Y (en) | 2007-11-01 | 2007-11-01 | Gas lift valve for fast liquor drainage after oil-gas field high pressure operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720173933.6U CN201103378Y (en) | 2007-11-01 | 2007-11-01 | Gas lift valve for fast liquor drainage after oil-gas field high pressure operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103378Y true CN201103378Y (en) | 2008-08-20 |
Family
ID=39950403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200720173933.6U Expired - Lifetime CN201103378Y (en) | 2007-11-01 | 2007-11-01 | Gas lift valve for fast liquor drainage after oil-gas field high pressure operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103378Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979823A (en) * | 2010-10-14 | 2011-02-23 | 中国石油天然气股份有限公司 | Hydraulic jet perforation fracturing gas lift liquid drainage integrated process pipe column |
| CN105350944A (en) * | 2015-12-06 | 2016-02-24 | 长江大学 | Gas injection tool for continuous oil tube gas jack |
| CN106522899A (en) * | 2016-11-03 | 2017-03-22 | 中国石油化工股份有限公司 | Fixed type spring gas lift valve |
| CN106761603A (en) * | 2016-12-29 | 2017-05-31 | 中国海洋石油总公司 | A kind of high-pressure opening gas lift valve suitable for deepwater |
| CN107304661A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Single-flow valve assembly, gas lift valve, gas lift tool and integrated tubular column |
| CN107701154A (en) * | 2017-10-26 | 2018-02-16 | 中国石油天然气股份有限公司 | Plunger for gas lift |
| CN109441424A (en) * | 2017-09-01 | 2019-03-08 | 中国石油天然气股份有限公司 | Annulus pressurization type induced flow test pipe column and induced flow test method |
| CN113229815A (en) * | 2021-05-17 | 2021-08-10 | 冯骥 | Animal doctor is with livestock epidemic disease detection device |
-
2007
- 2007-11-01 CN CN200720173933.6U patent/CN201103378Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979823A (en) * | 2010-10-14 | 2011-02-23 | 中国石油天然气股份有限公司 | Hydraulic jet perforation fracturing gas lift liquid drainage integrated process pipe column |
| CN105350944A (en) * | 2015-12-06 | 2016-02-24 | 长江大学 | Gas injection tool for continuous oil tube gas jack |
| CN107304661A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Single-flow valve assembly, gas lift valve, gas lift tool and integrated tubular column |
| CN106522899A (en) * | 2016-11-03 | 2017-03-22 | 中国石油化工股份有限公司 | Fixed type spring gas lift valve |
| CN106761603A (en) * | 2016-12-29 | 2017-05-31 | 中国海洋石油总公司 | A kind of high-pressure opening gas lift valve suitable for deepwater |
| CN109441424A (en) * | 2017-09-01 | 2019-03-08 | 中国石油天然气股份有限公司 | Annulus pressurization type induced flow test pipe column and induced flow test method |
| CN109441424B (en) * | 2017-09-01 | 2022-02-01 | 中国石油天然气股份有限公司 | Annulus pressurization type induced flow test pipe column and induced flow test method |
| CN107701154A (en) * | 2017-10-26 | 2018-02-16 | 中国石油天然气股份有限公司 | Plunger for gas lift |
| CN107701154B (en) * | 2017-10-26 | 2019-10-11 | 中国石油天然气股份有限公司 | Plunger for gas lift |
| CN113229815A (en) * | 2021-05-17 | 2021-08-10 | 冯骥 | Animal doctor is with livestock epidemic disease detection 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 |
Granted publication date: 20080820 |