CN204371254U - Gas lift working barrel - Google Patents
Gas lift working barrel Download PDFInfo
- Publication number
- CN204371254U CN204371254U CN201420779403.6U CN201420779403U CN204371254U CN 204371254 U CN204371254 U CN 204371254U CN 201420779403 U CN201420779403 U CN 201420779403U CN 204371254 U CN204371254 U CN 204371254U
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- China
- Prior art keywords
- gas
- working barrel
- piston
- hole
- valve
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- 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
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- 239000012530 fluid Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 60
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001584775 Tunga penetrans Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a gas lift working barrel belongs to oil field oil recovery machinery technical field. The gas lift working barrel comprises: the hydraulic starting valve is arranged on the upper joint; a central pipe is sleeved inside the outer sleeve; a central tube opening arranged on the hydraulic starting valve is communicated with the central inner cavity; be provided with the piston in the hydraulic pressure starting valve, the piston is fixed and can make unable intercommunication between center tube trompil and the gas lift hole through cutting the round pin, and after to oil pipe pressurization, the piston can remove and cut the shear pin, makes to communicate between center tube trompil and the gas lift hole. The utility model prevents the fluid in the air of the oil sleeve ring from entering the oil pipe by arranging the hydraulic starting valve, increases the pressure difference between the oil sleeve ring space and the oil pipe, and solves the problem that the gas lift working barrel in the prior art can not carry out the oil sleeve ring space pressure-building operation; the effects of increasing the pressure difference between the oil sleeve annulus and the oil pipe and utilizing the gas lift working barrel to implement the oil sleeve annulus pressure-building operation are achieved.
Description
Technical field
The utility model relates to oil extraction in oil field field of mechanical technique, particularly a kind of gas-lift working barrel.
Background technology
Gas-lift working barrel is a kind of equipment for gas-lift production, and what this equipment was widely used in that crude oil cannot be spontaneous is raised to the oil well on ground from shaft bottom.
Gas lift valve is provided with in gas-lift working barrel of the prior art, gas lift valve controls the open and close of gas-lift working barrel, when the force value at gas lift valve place place is greater than its setting value, gas lift valve is opened automatically, and the gas in oil jacket annular space can enter oil pipe by gas lift valve, with the fluid chemical field in oil pipe, reduce fluid density, fluid in lifting oil pipe, and need to oil jacket applied pressure by annulus build the pressure operation time, need to change the special tubing string that builds the pressure.
Inventor is realizing in process of the present utility model, find that above-mentioned gas-lift working barrel at least exists following defect: above-mentioned gas-lift working barrel is owing to making gas from oil jacket annular space to oil pipe one-way flow by gas lift valve, and the setting value of the pressure of gas lift valve is general lower, thus the pressure differential can set up between oil jacket annular space and oil pipe is lower, cannot implement oil jacket annular space and to build the pressure operation.
Utility model content
In order to the gas-lift working barrel solved in correlation technique makes the pressure differential that can set up between oil jacket annular space and oil pipe lower, cannot implement oil jacket annular space and to build the pressure the problem of operation, the utility model provides a kind of gas-lift working barrel.Described technical scheme is as follows:
According to first aspect of the present utility model, provide a kind of gas-lift working barrel, this gas-lift working barrel comprises:
Top connection, hydraulic starting valve, central tube, overcoat, gas lift valve and lower contact;
Top connection, overcoat are connected successively with lower contact;
Jacket internal is socketed with central tube, and the upper end of central tube is threaded with top connection, and the lower end of central tube is threaded with lower contact, and the central lumen of central tube is communicated with oil pipe;
Hydraulic starting valve is arranged on central tube, and the central tube perforate that hydraulic starting valve is arranged is communicated with central lumen, and the gaslift hole that hydraulic starting valve is arranged is connected with the outlet of gas lift valve;
Be provided with piston in hydraulic starting valve, piston is by cutting off fixing and can making cannot be communicated with between central tube perforate with gaslift hole, and after to oil pipe pressurization, piston can move and cut off and cut off, and makes to be communicated with between central tube perforate with gaslift hole.
Optionally, this hydraulic starting valve also comprises: cut off seat, valve seat and one way valve;
The upper end of piston is provided with undergauge structure, and undergauge structure is inserted and sealed the centre bore cutting off and arrange in seat, and centre bore is communicated with central tube perforate;
Cut off and pass from cutting off seat and undergauge structure, by piston with cut off seat and fix;
Piston to be slidably mounted in the inner chamber of valve seat and to become piston seal with inner chamber;
The opening that the upper end of inner chamber is arranged with cut off seat and be tightly connected, the middle part of inner chamber becomes the part of piston seal to be provided with interstitial hole with piston, interstitial hole is communicated with gaslift hole;
The bottom of inner chamber has unidirectional hole, and unidirectional hole is connected with one way valve, and one way valve can stop the fluid of the outside of gas-lift working barrel to enter inner chamber, and the fluid in inner chamber can flow to the outside of gas-lift working barrel;
After to oil pipe pressurization, piston is cut off and is cut off and slide to the bottom of inner chamber, exposes interstitial hole, centre bore is communicated with gaslift hole.
Optionally, the import of gas lift valve is connected with the opening putting setting outward.
Optionally, in gas-lift working barrel, the junction of all parts is all provided with sealing ring.
Optionally, one way valve comprises: pressure cap, stage clip, steel ball and ball seat;
Pressure cap is connected with one end of stage clip and stage clip is shunk, and steel ball is pressed on ball seat by the other end of stage clip, and the ball seat hole arranged in ball seat blocked by steel ball, and ball seat hole is connected with unidirectional hole;
Pressure cap is provided with the pressure cap hole being communicated with gas-lift working barrel outside.
Optionally, piston be fixed on cut off on seat time, the position that piston is corresponding with interstitial hole is provided with middle part undergauge structure.
The technical scheme that the utility model provides can comprise following beneficial effect:
Stop that the fluid in oil jacket annular space enters oil pipe by arranging hydraulic starting valve, increase the pressure differential between oil jacket annular space and oil pipe, and this hydraulic starting valve can be pressurizeed by rail and opens, solve the pressure differential that gas-lift working barrel of the prior art makes can set up between oil jacket annular space and oil pipe lower, oil jacket annular space cannot be implemented and to build the pressure the problem of operation; Reach the pressure differential increasing oil jacket annular space and oil pipe, utilize gas-lift working barrel enforcement oil jacket annular space to build the pressure the effect of operation.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the utility model.
Accompanying drawing explanation
Accompanying drawing to be herein merged in manual and to form the part of this manual, shows and meets embodiment of the present utility model, and is used from manual one and explains principle of the present utility model.
Fig. 1 is the structural representation of a kind of gas-lift working barrel according to the utility model one exemplary embodiment;
Fig. 2 is the first half structural representation of a kind of gas-lift working barrel according to another exemplary embodiment of the utility model;
Fig. 3 is the structural representation of piston in the gas-lift working barrel shown in Fig. 2;
Fig. 4 is the structural representation of one way valve in the gas-lift working barrel shown in Fig. 2.
By above-mentioned accompanying drawing, illustrate the embodiment that the utility model is clear and definite more detailed description will be had hereinafter.These accompanying drawings and text description be not in order to limited by any mode the utility model design scope, but by reference to specific embodiment for those skilled in the art illustrate concept of the present utility model.
Detailed description of the invention
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Embodiment described in following exemplary embodiment does not represent all embodiments consistent with the utility model.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that aspects more of the present utility model are consistent.
Fig. 1 is the structural representation of a kind of gas-lift working barrel according to an exemplary embodiment, and this gas-lift working barrel can be used in carrying out gas-lift production.This gas-lift working barrel can comprise:
Top connection 11, hydraulic starting valve 12, central tube 13, overcoat 14, gas lift valve 15 and lower contact 16.
Top connection 11, overcoat 14 are connected successively with lower contact 16.
Overcoat 14 internal sleeve is connected to central tube 13, and the upper end m of central tube 13 is threaded with top connection 11, and the lower end n of central tube 13 is threaded with lower contact 16, and the central lumen 131 of central tube 13 is communicated with oil pipe (not shown in figure 1).
Hydraulic starting valve 12 is arranged on central tube 13, and the central tube perforate 121 that hydraulic starting valve 12 is arranged is communicated with central lumen 131, and the gaslift hole 122 that hydraulic starting valve 12 is arranged is connected with the outlet 151 of gas lift valve 15.
Piston 123 is provided with in hydraulic starting valve 12, piston 123 is fixed by cutting off 124 and can make cannot be communicated with between central tube perforate 121 with gaslift hole 122, after to oil pipe pressurization, piston 123 can move and cut off and cut off 124, makes to be communicated with between central tube perforate 121 with gaslift hole 122.
It should be noted that, the gas-lift working barrel that the utility model embodiment provides in use, can be connected on oil pipe, and namely top connection 11 is all connected with oil pipe with lower contact 16.
In sum, the gas-lift working barrel that the utility model embodiment provides, stop that the fluid in oil jacket annular space enters oil pipe by arranging hydraulic starting valve, increase the pressure differential between oil jacket annular space and oil pipe, and this hydraulic starting valve can be pressurizeed by rail and opens, solve the pressure differential that gas-lift working barrel of the prior art makes can set up between oil jacket annular space and oil pipe lower, oil jacket annular space cannot be implemented and to build the pressure the problem of operation; Reach the pressure differential increasing oil jacket annular space and oil pipe, utilize gas-lift working barrel enforcement oil jacket annular space to build the pressure the effect of operation.
Further, please refer to Fig. 2, it illustrates the first half structural representation of the another kind of gas-lift working barrel that the utility model embodiment provides, this gas-lift working barrel adds preferred parts on the basis of the gas-lift working barrel shown in Fig. 1, thus the gas-lift working barrel that the utility model embodiment is provided has better performance.
In fig. 2, hydraulic starting valve 12 can also comprise: cut off seat 125, valve seat 126 and one way valve 127.The upper end of piston 123 is provided with undergauge structure 1231, and undergauge structure 1231 is inserted and sealed the centre bore 1251 cutting off and arrange in seat 125, and centre bore 1251 is communicated with central tube perforate 121; Cut off 124 to pass from cutting off seat 125 and undergauge structure 1231, by piston 123 with cut off seat 125 and fix; Piston 123 to be slidably mounted in the inner chamber 1261 of valve seat 126 and with inner chamber 1261 one-tenth piston seal; The opening (not marking in Fig. 2) that the upper end of inner chamber 1261 is arranged with cut off seat 125 and be tightly connected, the middle part of inner chamber 1261 is provided with interstitial hole 1262 with the part of 123 one-tenth, piston piston seal, and interstitial hole 1262 is communicated with gaslift hole 122.Preferably, hydraulic starting valve 12 can be stuck between the step y on top connection 11 and central tube 13.
As Fig. 3, it is the structural representation of piston 123, when the undergauge structure 1231 of piston 123 is inserted and is sealed the centre bore 1251 cutting off and arrange in seat 125, cut off 124 to pass from cutting off seat 125 and undergauge structure 1231, by piston 123 with cut off seat 125 and fix, the position that piston 123 is corresponding with interstitial hole 1262 can be provided with middle part undergauge structure 1232, middle part undergauge structure 1232 can change the fluid of discharging from interstitial hole 1262 to the pressure direction of piston 123, pressure is made to act on piston 123 more uniformly, the sealing performance of jigger lifting piston 123.The bottom of inner chamber 1261 has unidirectional hole 1263.Sealing ring 17 is arranged between the components.Example, piston 123 is cut off after being subject to rated pressure and is cut off 124 and the bottom sliding to inner chamber 1261, exposes interstitial hole 1262, and interstitial hole 1262 is communicated with central tube perforate (not shown in Fig. 3).
In fig. 2, the bottom of inner chamber 1261 has unidirectional hole 1263, and unidirectional hole 1263 is connected with one way valve 127, and one way valve 127 can stop the fluid of the outside of gas-lift working barrel to enter inner chamber 1261, and the gas in inner chamber 1261 can flow to the outside of gas-lift working barrel.
The import (not marking in Fig. 2) of gas lift valve 15 is connected with the opening 141 putting setting outward, the concrete structure of gas lift valve 15 can with reference to prior art, in the utility model embodiment, simply can think that gas lift valve 15 is one-way cocks, fluid can only enter the entrance of gas lift valve 15 from opening 141, then discharges from the outlet 151 of gas lift valve 15.
Preferably, in gas-lift working barrel, the junction of all parts can be provided with sealing ring 17, to improve the sealing between all parts, the utility model embodiment not to sealing ring 17 arrange position and quantity restrict.
As Fig. 4, it is the structural representation of one way valve 127, and one way valve 127 can comprise: pressure cap 1271, stage clip 1272, steel ball 1273 and ball seat 1274; Pressure cap 1271 is connected with one end of stage clip 1272 and stage clip 1272 is shunk, steel ball 1273 is pressed on ball seat 1274 by the other end of stage clip 1272, the ball seat hole a arranged in ball seat 1274 blocked by steel ball 1273, and ball seat hole a is connected with unidirectional hole (not shown in Fig. 4).Pressure cap 1271 is provided with and is communicated with the pressure cap hole b of gas-lift working barrel outside, the utility model embodiment does not restrict the size of pressure cap hole b, quantity and position.Gas in inner chamber (not shown in Fig. 4) can enter ball seat 1274 from ball seat hole a, and washes steel ball 1273 open and be discharged to gas-lift working barrel outside from pressure cap hole b, but the fluid of gas-lift working barrel outside cannot enter ball seat hole a.
It should be noted that, when the gas-lift working barrel using the utility model embodiment to provide, can first pressurize to oil jacket annular space (gas-lift working barrel space outerpace), increase the pressure differential of oil jacket annular space and oil pipe, hydraulic starting valve can block this pressure, when pressure reaches preset value, can pressurize in oil pipe, piston is cut off and cuts off and slide to intracavity bottom, expose interstitial hole, oil jacket annular space is communicated with oil pipe, stop rail pressurization simultaneously, fluid now in oil jacket annular space can enter oil pipe under differential pressure action, can realize gaslift operation.
It should be added that, the gas-lift working barrel that the utility model embodiment provides, by arranging one way valve, gas when enabling piston slide to intracavity bottom in inner chamber discharges inner chamber, prevent resilience piston after the gas pressurized in inner chamber, make piston block interstitial hole.
It should be added that, the gas-lift working barrel that the utility model embodiment provides, by arranging middle part undergauge structure at the middle part of piston, make the fluid from interstitial hole is next more even to the pressure of piston, improve the sealing performance of piston.
In sum, the gas-lift working barrel that the utility model embodiment provides, stop that the fluid in oil jacket annular space enters oil pipe by arranging hydraulic starting valve, increase the pressure differential between oil jacket annular space and oil pipe, and this hydraulic starting valve can be pressurizeed by rail and opens, solve the pressure differential that gas-lift working barrel of the prior art makes can set up between oil jacket annular space and oil pipe lower, oil jacket annular space cannot be implemented and to build the pressure the problem of operation; Reach the pressure differential increasing oil jacket annular space and oil pipe, utilize gas-lift working barrel enforcement oil jacket annular space to build the pressure the effect of operation.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a gas-lift working barrel, is characterized in that, described gas-lift working barrel comprises:
Top connection, hydraulic starting valve, central tube, overcoat, gas lift valve and lower contact;
Described top connection, described overcoat are connected successively with described lower contact;
Described jacket internal is socketed with described central tube, and the upper end of described central tube is threaded with described top connection, and the lower end of described central tube is threaded with described lower contact, and the central lumen of described central tube is communicated with oil pipe;
Described hydraulic starting valve is arranged on described central tube, and the central tube perforate that described hydraulic starting valve is arranged is communicated with described central lumen, and the gaslift hole that described hydraulic starting valve is arranged is connected with the outlet of described gas lift valve;
Piston is provided with in described hydraulic starting valve, described piston is by cutting off fixing and can making cannot be communicated with between described central tube perforate with described gaslift hole, after to described oil pipe pressurization, described piston can move and cut off described in cutting off, and makes to be communicated with between described central tube perforate with described gaslift hole.
2. gas-lift working barrel according to claim 1, is characterized in that, described hydraulic starting valve also comprises: cut off seat, valve seat and one way valve;
The upper end of described piston is provided with undergauge structure, and described undergauge structure is inserted and cut off the centre bore arranged in seat described in sealing, and described centre bore is communicated with described central tube perforate;
Described cutting off is passed from described cutting off seat and described undergauge structure, described piston and the described seat that cuts off is fixed;
Described piston to be slidably mounted in the inner chamber of described valve seat and to become piston seal with described inner chamber;
Opening and the described seat that cuts off of the upper end setting of described inner chamber are tightly connected, and the middle part of described inner chamber becomes the part of piston seal to be provided with interstitial hole with described piston, and described interstitial hole is communicated with described gaslift hole;
The bottom of described inner chamber has unidirectional hole, and described unidirectional hole is connected with described one way valve, and described one way valve can stop the fluid of the outside of described gas-lift working barrel to enter described inner chamber, and the fluid in described inner chamber can flow to the outside of described gas-lift working barrel;
After to the pressurization of described oil pipe, described piston cut off described in cut off and slide to the bottom of described inner chamber, expose described interstitial hole, described centre bore be communicated with described gaslift hole.
3. gas-lift working barrel according to claim 1, is characterized in that,
The import of described gas lift valve is connected with the described outer opening putting setting.
4., according to the arbitrary described gas-lift working barrel of claims 1 to 3, it is characterized in that,
In described gas-lift working barrel, the junction of all parts is all provided with sealing ring.
5. gas-lift working barrel according to claim 2, is characterized in that, described one way valve comprises: pressure cap, stage clip, steel ball and ball seat;
Described pressure cap is connected with one end of described stage clip and described stage clip is shunk, and described steel ball is pressed on described ball seat by the other end of described stage clip, and the ball seat hole arranged in described ball seat blocked by described steel ball, and described ball seat hole is connected with described unidirectional hole;
Described pressure cap is provided with the pressure cap hole being communicated with described gas-lift working barrel outside.
6. gas-lift working barrel according to claim 2, is characterized in that,
When cutting off on seat described in described piston is fixed on, the position that described piston is corresponding with described interstitial hole is provided with middle part undergauge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779403.6U CN204371254U (en) | 2014-12-10 | 2014-12-10 | Gas lift working barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779403.6U CN204371254U (en) | 2014-12-10 | 2014-12-10 | Gas lift working barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371254U true CN204371254U (en) | 2015-06-03 |
Family
ID=53327483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420779403.6U Expired - Fee Related CN204371254U (en) | 2014-12-10 | 2014-12-10 | Gas lift working barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371254U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242260A (en) * | 2019-05-17 | 2019-09-17 | 张强 | The application method of the layering gas recovery device of the double-deck tubing string |
| CN110541686A (en) * | 2018-05-28 | 2019-12-06 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
| CN112211590A (en) * | 2019-07-11 | 2021-01-12 | 中国石油天然气股份有限公司 | Gas lift circulating valve |
| CN113677869A (en) * | 2019-04-15 | 2021-11-19 | 阿布扎比国家石油公司 | Unloading valve for well |
-
2014
- 2014-12-10 CN CN201420779403.6U patent/CN204371254U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541686A (en) * | 2018-05-28 | 2019-12-06 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
| CN113677869A (en) * | 2019-04-15 | 2021-11-19 | 阿布扎比国家石油公司 | Unloading valve for well |
| CN113677869B (en) * | 2019-04-15 | 2023-11-14 | 阿布扎比国家石油公司 | Well unloading valve and method for operating well unloading valve |
| US11851988B2 (en) | 2019-04-15 | 2023-12-26 | Abu Dhabi National Oil Company | Well unloading valve |
| CN110242260A (en) * | 2019-05-17 | 2019-09-17 | 张强 | The application method of the layering gas recovery device of the double-deck tubing string |
| CN110242260B (en) * | 2019-05-17 | 2021-04-20 | 南通新华诚科研仪器有限公司 | Application method of layered gas production device of double-layer pipe column |
| CN112211590A (en) * | 2019-07-11 | 2021-01-12 | 中国石油天然气股份有限公司 | Gas lift circulating valve |
| CN112211590B (en) * | 2019-07-11 | 2022-08-30 | 中国石油天然气股份有限公司 | Gas lift circulating 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: 20150603 |