CN2687313Y - Gas-lift valve working barrel - Google Patents
Gas-lift valve working barrel Download PDFInfo
- Publication number
- CN2687313Y CN2687313Y CN 200420010499 CN200420010499U CN2687313Y CN 2687313 Y CN2687313 Y CN 2687313Y CN 200420010499 CN200420010499 CN 200420010499 CN 200420010499 U CN200420010499 U CN 200420010499U CN 2687313 Y CN2687313 Y CN 2687313Y
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- lift
- barrel
- 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 - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a gas-lift valve working barrel. Outer screws are provided at both ends of the barrel; a protective sleeve and a valve sleeve are provided at the side wall of the barrel; the axle centers of the protective sleeve and the valve sleeve are on the same vertical line. Inner screws are processed in the valve sleeve; an obliquely upward airflow channel is provided between the valve sleeve and the barrel. The utility model can enhance the stationary reliability of the gas-lift valve, prevent the gas-lift valve damaging during up and down working process, and works normally. The utility model has the advantages of simple structure, convenient installing, safe operation, etc.
Description
Technical field
The utility model relates to a kind of gas lift mandrel, belongs to the down-hole string technical field.
Background technology
In the present gas-lift well manufacturing process, the general method that gas lift valve directly is fixed on the oil pipe that adopts is carried out gaslift production, there is following drawback in this kind method in the use at the scene: when 1, gas-lift well is produced, high pressure injects gas by behind the valve pocket internal gas flow passage, directly impact tube inner wall, easily cause oil pipe in this position perforation, formation is collaborated, and influences the gas-lift well ordinary production; 2, rise in well workover, descend in the operation process, gas lift valve and internal surface of sleeve pipe collide and cause gas lift valve to damage, and can not work.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of gas lift mandrel is provided.
The purpose of this utility model is achieved in that the two ends up and down of the cylindrical shell of gas lift mandrel are provided with external screw thread; on the sidewall of cylindrical shell, be provided with protective sleeve and valve pocket; the axle center of protective sleeve and valve pocket is on same vertical line; be processed with internal thread in the valve pocket, have gas channel obliquely between valve pocket and the cylindrical shell.
The utility model can strengthen the gas lift valve reliability of fixation, guarantees that gas lift valve rises, is not damaged in the operation process down, and is working properly, has advantages such as simple in structure, easy for installation, handling safety.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: screw thread under the last screw thread of 1-, 2-protective sleeve, 3-cylindrical shell, 4-valve pocket, 5-gas channel, the 6-;
The specific embodiment
Gas lift mandrel is according to gas-lift well production principle design invention.Gas lift mandrel can be widely used in oil field gas-lift well production, and can fix and protect gas lift valve.As shown in Figure 1; the two ends up and down of the cylindrical shell 3 of gas lift mandrel are provided with external screw thread 1,6; on the sidewall of cylindrical shell 3, be provided with protective sleeve 2 and valve pocket 4; the axle center of protective sleeve 2 and valve pocket 4 is on same vertical line; be processed with internal thread in the valve pocket 4, have gas channel 5 obliquely between valve pocket 4 and the cylindrical shell 3.
During use, will debug earlier good gas lift valve on the ground and pass protective sleeve 2, the lower end and valve pocket 4 screw threads of gas lift valve are fixed, protective sleeve 2 is fixing with the gas lift valve upper end.When the gas-lift well workover treatment, the upper and lower end and the oil pipe of the novel gas lift mandrel that assembles on the ground linked, be lowered into the degree of depth place of gas-lift well design of string pipe.When gas-lift well is produced, protective sleeve 2 can prevent the gas lift valve radial vibration, guarantee the gas lift valve stable work in work, after the gas channel 5 bootable high pressure draughts of valve pocket 4 inside enter oil pipe obliquely, direction along the oil pipe axle center flows, promote the fluid in the oil pipe, make high pressure draught and fluid fused rapidly, improved the gas-lift well lifting efficiency; Directly do not impact tube inner wall after high pressure draught comes out from gas channel 5, the seating nipple of having avoided causing because of the direct impact to tube inner wall is bored a hole, and can effectively protect gas lift mandrel, the prolongation gas-lift well production cycle.
When gas lift valve or seating nipple go wrong and when influencing gas-lift well and producing, by workover treatment, gas lift mandrel come out in well, unload gas lift valve with instrument from valve pocket 4 on the ground, take off gas lift valve from protective sleeve 2 inside and get final product.
Claims (1)
1, a kind of gas lift mandrel; it is characterized in that: the two ends up and down of cylindrical shell (3) are provided with external screw thread (1), (6); on the sidewall of cylindrical shell (3), be provided with protective sleeve (2) and valve pocket (4); the axle center of protective sleeve (2) and valve pocket (4) is on same vertical line; valve pocket is processed with internal thread in (4), has gas channel (5) obliquely between valve pocket (4) and the cylindrical shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010499 CN2687313Y (en) | 2004-03-29 | 2004-03-29 | Gas-lift valve working barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010499 CN2687313Y (en) | 2004-03-29 | 2004-03-29 | Gas-lift valve working barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687313Y true CN2687313Y (en) | 2005-03-23 |
Family
ID=34668475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010499 Expired - Fee Related CN2687313Y (en) | 2004-03-29 | 2004-03-29 | Gas-lift valve working barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687313Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285567A (en) * | 2015-05-22 | 2017-01-04 | 中国石油天然气股份有限公司 | Gas lift working barrel |
| CN112253055A (en) * | 2020-11-27 | 2021-01-22 | 西南石油大学 | Backflow-preventing gas lift valve suitable for variable-pressure gas lift process technology |
-
2004
- 2004-03-29 CN CN 200420010499 patent/CN2687313Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285567A (en) * | 2015-05-22 | 2017-01-04 | 中国石油天然气股份有限公司 | Gas lift working barrel |
| CN112253055A (en) * | 2020-11-27 | 2021-01-22 | 西南石油大学 | Backflow-preventing gas lift valve suitable for variable-pressure gas lift process technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102787835B (en) | Gas well underground spiral gas-liquid separation liquid drainage and gas production device | |
| CN2687313Y (en) | Gas-lift valve working barrel | |
| CN202788753U (en) | Differential-pressure sliding sleeve for staged fracturing of sidetrack horizontal wells | |
| CN2844405Y (en) | The fluid power expanding expands milling cutter | |
| CN202531390U (en) | Gas Well Drainage Gas Production Plunger | |
| CN201991503U (en) | Nozzle-built-in hydraulic jet | |
| CN103573194A (en) | Production string optimization device for oil well in case of electric submersible pump gas-locking | |
| CN200952374Y (en) | Multifunction gas production well head device | |
| CN203488138U (en) | Suspension device of coiled tubing wellhead | |
| CN203230401U (en) | Casing gas-lift composite lifting well completion pipe string of sucker-rod pump | |
| CN2782912Y (en) | Whipstock fisher for lateral well | |
| CN203626736U (en) | Anti-eccentric-wear bleeder | |
| CN2809269Y (en) | Junk prevention device for oil well pump | |
| CN202039816U (en) | Bidirectional back pressure valve | |
| CN2903361Y (en) | Oil well sleeve gas straight exhausting apparatus | |
| CN204186333U (en) | A kind of slide block type dipper | |
| CN2752427Y (en) | Small dimention high strength returnable fishing spears | |
| CN201321822Y (en) | Axial flow drill rod for pumping water | |
| CN209195354U (en) | A kind of storm valve is opened and locking tool | |
| CN2564742Y (en) | Blow-out and sand prevention downhole valve | |
| CN216044332U (en) | Connection protector special for hydraulic feedback oil-well pump | |
| CN2588039Y (en) | Oil releasing device for oil pipe | |
| CN203655242U (en) | Water-plugging deep-pumping integrated pipe column | |
| CN2603189Y (en) | Internal guiding type wearing-resistant oil sucket rod | |
| CN204061120U (en) | Gas-proof oil well pump suitable for carbon dioxide drives high gas-liquid ratio oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |