CN108316887A - Gas lift valve and oil pipe - Google Patents
Gas lift valve and oil pipe Download PDFInfo
- Publication number
- CN108316887A CN108316887A CN201810295603.7A CN201810295603A CN108316887A CN 108316887 A CN108316887 A CN 108316887A CN 201810295603 A CN201810295603 A CN 201810295603A CN 108316887 A CN108316887 A CN 108316887A
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- Prior art keywords
- valve body
- valve
- gas lift
- inner passage
- passage
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000012530 fluid Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001727 in vivo Methods 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
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Abstract
The present invention relates to oil and gas exploitation field, a kind of gas lift valve and oil pipe are disclosed.The gas lift valve includes the upper valve body for being sequentially coaxially tightly connected and all having axial inner passage, middle valve body and lower valve body, it is formed with trepanning on the side wall of upper valve body, trepanning interior sealing is connected with rupture disk, the connectivity part of the inner passage of upper valve body and middle valve body is provided with seal assembly, and the connectivity part of the inner passage of middle valve body and lower valve body is provided with ball-and-seat component.In the initial state, rupture disk, the inner passage of upper valve body and seal assembly constitute the first sealing space, and inner passage, seal assembly and the ball-and-seat component of middle valve body constitute the second sealing space；In the on-state, rupture makes outside liquid enter the first sealing space through trepanning and is exerted a force to seal assembly to be connected to the first sealing space and the second sealing space, and the liquid for entering the second sealing space continues to exert a force to be connected to the inner passage of the second sealing space and lower valve body to ball-and-seat component.
Description
Technical field
The present invention relates to oil and gas exploitation fields, and in particular to a kind of gas lift valve and a kind of oil pipe.
Background technology
During oil and gas exploitation, gas lift liquid drainage is a kind of very effective method for increasing.Gas lift valve is note
Enter the switch that gas is entered by oil jacket annular region in oil pipe, injection gas gradually can penetrate into liquid by gas lift valves at different levels from top to bottom
In vivo, to make the liquid weight of oil pipe bottom or more lighten.
Existing gas lift valve mainly controls ball-and-seat unlatching to realize the switch of gas lift valve by the elastic force of spring.Gas at present
It is all in oil pipe together tripping in pit shaft, after production middle and later periods strata pressure declines, needing just to open when gaslift to lift valve.But it is existing
There is the gas lift valve in technology there is no tight function, for condensate gas well, the tubing string of the tripping in gas lift valve can not meet for this
Its early period gas well liquid loading requirement, to influence the high-efficiency mining of such gas well.
Invention content
In view of the deficiencies of the prior art, the present invention is proposed and a kind of can be closed in the production process of gas well early period
To ensure the air-tightness of tubing string, and open in the production process in gas well later stage to realize the gas lift valve of liquid discharging gas producing purpose, with
And a kind of oil pipe of the application gas lift valve, to effectively improve the production efficiency of condensate gas well.
According to the first aspect of the invention, a kind of gas lift valve is disclosed, including is sequentially coaxially tightly connected and all has axis
To inner passage upper valve body, middle valve body and lower valve body, be formed with trepanning on the side wall of upper valve body, trepanning interior sealing is connected with
Rupture disk, the connectivity part of the inner passage of upper valve body and middle valve body are provided with seal assembly, and the inside of middle valve body and lower valve body is logical
The connectivity part in road is provided with ball-and-seat component, wherein under the original state of gas lift valve, rupture disk, upper valve body inner passage
It is formed by space with seal assembly and constitutes the first sealing space, and the inner passage of middle valve body, seal assembly and ball-and-seat group
Part is formed by space and constitutes the second sealing space；Under the opening state of gas lift valve, rupture so that outside gas lift valve
Liquid through trepanning enter the first sealing space and to seal assembly exert a force to be connected to the first sealing space and the second sealing space,
And the liquid for entering the second sealing space continues to exert a force to be connected to the inside of the second sealing space and lower valve body to ball-and-seat component
Channel, so that liquid can flow out gas lift valve through the inner passage of lower valve body.
Further, the inner passage of upper valve body includes the first passage of close middle valve body and is connected with first passage
Second channel, the internal diameter of first passage is more than the internal diameter of second channel, under the original state of gas lift valve, the top of seal assembly
It being tightly connected with second channel, bottom and the first passage of seal assembly are tightly connected, and under the opening state of gas lift valve, it is close
Sealing assembly is located in first passage.
Further, seal assembly includes seal body, and seal body includes can be tightly connected with second channel
One ontology, and the second ontology for being connected with the first noumenon and being tightly connected with first passage, the first noumenon close to second
First through hole is formed on the periphery wall of ontology, first through hole is connected with the inner passage of middle valve body.
Further, seal assembly further includes being fixed on the lateral wall of the first noumenon and the lateral wall of the second ontology
On sealing element.
Further, the internal diameter of the inner passage of middle valve body is less than the internal diameter of first passage, and the inner passage of middle valve body
Internal diameter be less than lower valve body inner passage internal diameter.
Further, ball-and-seat component includes the valve seat being arranged in the inner passage of lower valve body and is formed at the top of valve seat
For sealing the valve ball of the second sealing space in the initial state, valve seat includes the first valve seat being connected with valve ball and with first
Coaxial connected the second valve seat of valve seat, the outer diameter of the second valve seat are more than the outer diameter of the first valve seat, and the second valve seat and lower valve body
Inner wall sealing connects, wherein running through on the periphery wall of the first valve seat has the second through-hole, the inner passage of the second through-hole and lower valve body
It is connected.
Further, round platform, the second valve seat and round platform are formed on the inward flange of one end far from middle valve body of lower valve body
Between be provided with elastic component, wherein under the opening state of gas lift valve, elastic component is compressed, and in the closed state of gas lift valve
Under, elastic component is resetted to push the second valve seat valve body in, and finally seals valve ball and the inner passage of middle valve body
Connection.
According to the second aspect of the invention, it is also proposed that a kind of oil pipe, including oil pipe ontology and it is fixed on oil pipe ontology
Lateral wall on above-mentioned gas lift valve, wherein the inner passage of lower valve body is connected with the central duct of oil pipe ontology.
Further, oil pipe ontology includes cylinder, and the top connection and lower contact being formed on cylinder lateral wall, upper valve body
It is fixedly connected with top connection, lower valve body is fixedly connected with lower contact, wherein the interior of first end and lower valve body is formed in lower contact
Portion channel is connected, the flow-guiding channel that second end is connected with the central duct of oil pipe ontology.
Further, flow-guiding channel is obliquely installed on the direction from the first end of flow-guiding channel towards second end.
The gas lift valve of the present invention can close (i.e. gas lift valve in the production process of gas well (especially condensate gas well) early period
Be not connected to oil pipe) to ensure the air-tightness of tubing string, it can be achieved that gas well complete period tubing string is integrated, reduce workover treatment number,
Reduction just has cost and well control risk, and reservoir is avoided repeatedly to pollute；And it needs to open gaslift in the production process in gas well later stage
(gas lift valve is connected to oil pipe) is opened when valve to realize liquid discharging gas producing purpose, to be effectively improved the exploitation effect of gas well
Rate.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram according to the gas lift valve of the present invention；
Fig. 2 is the structural schematic diagram under the gas lift valve original state in use according to the present invention；
Fig. 3 is structural schematic diagram of the gas lift valve shown in Fig. 2 under rupture state；
Fig. 4 is the structural schematic diagram according to gas lift valve of the invention in the on-state；
Fig. 5 is the structural schematic diagram according to gas lift valve of the invention in the off state.
Specific implementation mode
The embodiment of technical solution of the present invention is described in detail below in conjunction with attached drawing.Following embodiment is only used for
Clearly illustrate technical scheme of the present invention, therefore be only used as example, and the protection model of the present invention cannot be limited with this
It encloses.
Fig. 1 shows the structural schematic diagram of gas lift valve 100 according to the present invention.As shown in Figure 1, the gas lift valve 100 includes
Sequentially coaxially it is tightly connected and all has the upper valve body 1, middle valve body 2 and lower valve body 3 of axial inner passage, the side of upper valve body 1
Trepanning 13 is formed on wall, 13 interior sealing of trepanning is connected with rupture disk 14, the connection of upper valve body 1 and the inner passage of middle valve body 2
Place is provided with seal assembly 4, and middle valve body 2 and the connectivity part of the inner passage of lower valve body 3 are provided with ball-and-seat component 5.Wherein, exist
Under the original state of gas lift valve 100, rupture disk 14, the inner passage of upper valve body 1 and seal assembly 4 are formed by space and constitute the
One sealing space A, and the inner passage of middle valve body 2, seal assembly 4 and ball-and-seat component 5 are formed by space to constitute second close
Seal space B；Under the opening state of gas lift valve 100, rupture disk 14 ruptures so that the liquid outside gas lift valve 100 is through trepanning 13
It is exerted a force into the first sealing space A and to seal assembly 4 to be connected to the first sealing space A and the second sealing space B, and into the
The liquid of two sealing space B continues to exert a force to be connected to the inner passage of the second sealing space B and lower valve body 3 to ball-and-seat component 5,
So that liquid can flow out gas lift valve 100 through the inner passage of lower valve body 3.
The gas lift valve 100 of the present invention at work, such as its with oil pipe 200 together tripping in pit shaft when, in conjunction with shown in Fig. 2,
In the initial state, the inside of gas lift valve 100 is respectively formed with closed the first sealing space A and the second sealing space B, at this time
Rupture disk 2 is complete and can realize sealing function；And the pressure outside gas lift valve 100 is when reaching certain value, as shown in figure 3,
Rupture disk 2 can be crushed, and the fluid outside gas lift valve 100 can enter the first confined space A, seal assembly 4 through trepanning 13 at this time
Relative to the inner cavity downlink of upper valve body 1 first sealing space A is connected to the second sealing space B after compression；And with gaslift
Pressure value outside valve 100 continues growing, as shown in figure 4, the liquid into the second sealing space B continues to ball-and-seat component
5 force to be connected to the inner passage of the second sealing space B and lower valve body 3 so that liquid can the inside through lower valve body 3 lead to
Flow out gas lift valve 100 in road, and the central duct 2011 of oil pipe 200 is flowed by flow-guiding channel 2031, to realize gaslift, with drop
Low intraluminal fluid column pressure；When the pressure value reduction outside gas lift valve 100, as shown in figure 5, ball-and-seat component 5 can be relative to lower valve
The inner wall of body 3 moves upwards so that liquid cannot by the inner passage of middle valve body 2, at this time gas lift valve 100 with oil pipe 200 not
Connection.
The gas lift valve 100 of the present invention can close (i.e. gas in the production process of gas well (especially condensate gas well) early period
Valve 100 is lifted not to be connected to oil pipe 200) to ensure the air-tightness of tubing string, which can realize the tubing string integration of gas well complete period,
Workover treatment number is reduced, reduction just has cost and well control risk, reservoir is avoided repeatedly to pollute；And in the production in gas well later stage
(i.e. gas lift valve 100 is connected to oil pipe 200) is opened when needing to open gas lift valve 100 in journey to realize liquid discharging gas producing purpose, thus
It is effectively improved the production efficiency of gas well.
In the embodiment shown in fig. 1, the inner passage of upper valve body 1 includes 12 He of first passage close to middle valve body 2
The second channel 11 being connected with first passage 12, the internal diameter of first passage 12 is more than the internal diameter of second channel 11, in gas lift valve
Under 100 original state, top and the second channel 11 of seal assembly 4 are tightly connected, the bottom of seal assembly 4 and first passage
12 are tightly connected, and under the opening state of gas lift valve 100, seal assembly 4 is entirely located in first passage 12.It is set by this
It sets so that seal assembly 4 can be along the inner passage slide downward of upper valve body 1, to realize the under the pressure effect of fluid
The connection of one sealing space A and the second sealing space B.
Further, seal assembly 4 includes seal body, and seal body includes that can be tightly connected with second channel 11
The first noumenon 41, and the second ontology 42 for being connected with the first noumenon 41 and being tightly connected with first passage 12, the first noumenon
It is formed with first through hole 43, the inner passage phase of first through hole 43 and middle valve body 2 on the periphery wall of 41 close second ontology 41
Connection.Preferably, in order to improve between the first noumenon 41 and second channel 11 and the second ontology 42 and first passage 12 between
Leakproofness, sealing element 44 can be fixedly installed on the lateral wall of the first noumenon 41 and on the lateral wall of the second ontology 42, should
Sealing element for example can be rubber ring.
As shown in Figure 1, the internal diameter of the inner passage of middle valve body 2 is less than the internal diameter of first passage 12, and the inside of middle valve body 2
The internal diameter in channel is less than the internal diameter of the inner passage of lower valve body 3.It is less than first by the internal diameter of the inner passage of valve body in setting 2
The internal diameter in channel 12 so that the junction of the inner passage of first passage 12 and middle valve body 2 forms step, which can be used for pair
Seal body is limited, in entering under the pressure effect of fluid to avoid seal assembly 4 in the inner passage of valve body 2；And
It is less than the internal diameter of the inner passage of lower valve body 3 by the internal diameter of the inner passage of valve body in setting 2 so that the inside of middle valve body 2
The junction in channel and the inner passage of lower valve body 3 forms step, which can be used for limiting ball-and-seat component 5, with
In avoiding ball-and-seat component 5 from entering under the pressure effect of retrograde fluid in the inner passage of valve body 2.
According to the present invention, as shown in Figure 1, ball-and-seat component 5 includes the valve seat 52 being arranged in the inner passage of lower valve body 3
With the valve ball 51 for sealing the second sealing space B in the initial state for being formed in the top of valve seat 52, valve seat 52 includes and valve
The outer diameter of the second valve seat the first connected valve seat of ball 51 and be coaxially connected with the first valve seat, the second valve seat is more than the first valve seat
Outer diameter, and the second valve seat is connect with the inner wall sealing of lower valve body 3.Wherein, running through on the periphery wall of the first valve seat has the second through-hole
53, the second through-hole 53 is connected with the inner passage of lower valve body 3.By the setting, in conjunction with shown in Fig. 4, when entrance gas lift valve 100
When internal fluid presses to valve ball 51 and opens ball-and-seat component 5, fluid enters the through the annular distance region around the first valve seat
Two through-holes 53, since the second through-hole 53 is connected with the inner passage of lower valve body 3, fluid can continue to flow into lower valve body 3
Inner passage, and the flow-guiding channel 2031 that the fluid for flowing into the inner passage continues on through oil pipe 200 enters central duct 2011, from
And realize the purpose of gaslift.
Further, Fig. 1 is returned to, round platform 31 is formed on the inward flange of one end far from middle valve body 2 of lower valve body 3, the
Elastic component 54 is provided between two valve seats and round platform 31.Wherein, under the opening state of gas lift valve 100, elastic component 54 is compressed,
And under the closed state of gas lift valve 100, elastic component 54 is resetted to push the second valve seat valve body 2 in move, and is finally made
Valve ball 51 and the inner passage of middle valve body 2 are tightly connected.
In addition, the invention also provides a kind of oil pipes 200.Fig. 2 to 5 respectively illustrates the oil pipe 200 of the present invention in difference
Structural schematic diagram under working condition.As shown in Fig. 2, the oil pipe 200 includes oil pipe ontology 201 and is fixed on oil pipe ontology 201
Lateral wall on above-mentioned gas lift valve 100.Wherein, 2011 phase of central duct of the inner passage of lower valve body 3 and oil pipe ontology 201
Connection.
Further, as shown in Fig. 2, oil pipe ontology 201 includes cylinder, and the top connection being formed on cylinder lateral wall
202 and lower contact 203, upper valve body 1 be fixedly connected with top connection 202, lower valve body 3 is fixedly connected with lower contact 203.Wherein, under
It is formed with first end on connector 203 with the inner passage of lower valve body 3 to be connected, the central duct of second end and oil pipe ontology 201
2011 flow-guiding channels 2031 being connected.
Preferably, in order to enable a fluid to more smoothly enter the central duct 2011 of oil pipe ontology 201, water conservancy diversion can be led to
Road 2031 is obliquely installed on the direction from the first end of flow-guiding channel 2031 towards second end.
The oil pipe 200 of the present invention is by being arranged above-mentioned gas lift valve 100 so that in gas well (especially condensate gas well) early period
The air-tightness that tubing string is effectively ensured in production process can realize the tubing string integration of gas well complete period, reduce workover treatment number,
Reduction just has cost and well control risk, and reservoir is avoided repeatedly to pollute；And it needs to open gaslift in the production process in gas well later stage
It is opened to realize liquid discharging gas producing purpose, to be effectively improved the production efficiency of gas well when valve 100.It is worth noting that, this
The oil pipe 200 of invention may include being arranged multiple gas lift valves 100 on the lateral wall of oil pipe ontology 201, gas lift valve 100 it is specific
Interval between number and adjacent gas lift valve 100 can specifically be selected according to actual needs, and which is not described herein again.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application, it is to be understood that term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.In description of the invention
In, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.Especially, as long as there is no knots
Structure conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The present invention does not limit to
In specific embodiment disclosed herein, but include all technical solutions fallen within the scope of the appended claims.
Claims (10)
1. a kind of gas lift valve, which is characterized in that the upper valve including being sequentially coaxially tightly connected and all having axial inner passage
Body, middle valve body and lower valve body are formed with trepanning on the side wall of the upper valve body, and the trepanning interior sealing is connected with rupture disk, institute
The connectivity part for stating upper valve body and the inner passage of the middle valve body is provided with seal assembly, the middle valve body and the lower valve body
The connectivity part of inner passage is provided with ball-and-seat component, wherein under the original state of the gas lift valve, the rupture disk, institute
It states the inner passage of upper valve body and the seal assembly is formed by space and constitutes the first sealing space, and the middle valve body is interior
Portion channel, the seal assembly are formed by space with the ball-and-seat component and constitute the second sealing space；In the gas lift valve
Opening state under, the rupture so that it is close that liquid outside the gas lift valve through the trepanning enters described first
Envelope space simultaneously exerts a force to the seal assembly to be connected to first sealing space and second sealing space, and described in entering
The liquid of second sealing space continues to exert a force to be connected to second sealing space and the lower valve body to the ball-and-seat component
Inner passage so that liquid can flow out the gas lift valve through the inner passage of the lower valve body.
2. gas lift valve according to claim 1, which is characterized in that the inner passage of the upper valve body includes in described
The internal diameter of the first passage of valve body and the second channel being connected with the first passage, the first passage is more than described second
The internal diameter in channel, under the original state of the gas lift valve, the top of the seal assembly is tightly connected with the second channel,
The bottom of the seal assembly is tightly connected with the first passage, and under the opening state of the gas lift valve, the sealing
Component is located in the first passage.
3. gas lift valve according to claim 2, which is characterized in that the seal assembly includes seal body, the sealing
Ontology includes the first noumenon that can be tightly connected with the second channel, and be connected with the first noumenon and can with it is described
The second ontology that first passage is tightly connected, the first noumenon are formed with first on the periphery wall of second ontology
Through-hole, the first through hole are connected with the inner passage of the middle valve body.
4. gas lift valve according to claim 3, which is characterized in that the seal assembly further includes being fixed on the first
On the lateral wall of body, and the sealing element that is fixed on the lateral wall of second ontology.
5. gas lift valve according to any one of claim 2 to 4, which is characterized in that the inner passage of the middle valve body
Internal diameter is less than the internal diameter of the first passage, and the internal diameter of the inner passage of the middle valve body is logical less than the inside of the lower valve body
The internal diameter in road.
6. gas lift valve according to claim 5, which is characterized in that the ball-and-seat component includes being arranged in the lower valve body
Inner passage in valve seat and be formed at the top of the valve seat for sealing second sealing space in the initial state
Valve ball, the valve seat includes the first valve seat being connected with the valve ball and the second valve for being coaxially connected with first valve seat
Seat, the outer diameter of second valve seat are more than the outer diameter of first valve seat, and the inner wall of second valve seat and the lower valve body
It is tightly connected, wherein running through on the periphery wall of first valve seat has the second through-hole, second through-hole and the lower valve body
Inner passage is connected.
7. gas lift valve according to claim 6, which is characterized in that one end far from the middle valve body of the lower valve body
It is formed with round platform on inward flange, is provided with elastic component between second valve seat and the round platform, wherein in the gas lift valve
Under opening state, the elastic component is compressed, and under the closed state of the gas lift valve, the elastic component is resetted to push
The second valve body valve body in is stated, and is finally tightly connected the valve ball and the inner passage of the middle valve body.
8. a kind of oil pipe, which is characterized in that including oil pipe ontology and be fixed on the lateral wall of the oil pipe ontology according to power
Profit requires the gas lift valve described in any one of 1 to 7, wherein the center of the inner passage of the lower valve body and the oil pipe ontology
Duct is connected.
9. oil pipe according to claim 8, which is characterized in that the oil pipe ontology includes cylinder, and is formed in described
Top connection on cylinder lateral wall and lower contact, the upper valve body are fixedly connected with the top connection, the lower valve body with it is described under
Connector is fixedly connected, wherein and it is formed with first end in the lower contact and is connected with the inner passage of the lower valve body, second end
The flow-guiding channel being connected with the central duct of the oil pipe ontology.
10. oil pipe according to claim 9, which is characterized in that the flow-guiding channel is from the first of the flow-guiding channel
End is towards being obliquely installed on the direction of second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295603.7A CN108316887A (en) | 2018-03-30 | 2018-03-30 | Gas lift valve and oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295603.7A CN108316887A (en) | 2018-03-30 | 2018-03-30 | Gas lift valve and oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108316887A true CN108316887A (en) | 2018-07-24 |
Family
ID=62896494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810295603.7A Pending CN108316887A (en) | 2018-03-30 | 2018-03-30 | Gas lift valve and oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108316887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847865A (en) * | 2018-08-20 | 2020-02-28 | 中国石油天然气股份有限公司 | Drainage gas production passageway intercommunication device |
| CN113677869A (en) * | 2019-04-15 | 2021-11-19 | 阿布扎比国家石油公司 | Unloading valve for well |
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| GB0703422D0 (en) * | 2006-03-17 | 2007-04-04 | Schlumberger Holdings | Gas lift valve assembly |
| CA2807110A1 (en) * | 2012-02-24 | 2013-08-24 | Weatherford/Lamb, Inc. | External pressure testing of gas lift valve in side-pocket mandrel |
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| CN106471208A (en) * | 2014-07-01 | 2017-03-01 | 国际壳牌研究有限公司 | Hydraulic locking compensation balance valve |
| CN204941486U (en) * | 2015-07-02 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of gas lift valve and the eccentric gas-lift working barrel of one |
| CN107304661A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Single current valve module, gas lift valve, gaslift instrument and integrated pipe 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 |
| CN208137910U (en) * | 2018-03-30 | 2018-11-23 | 中国石油化工股份有限公司 | gas lift valve and oil pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110847865A (en) * | 2018-08-20 | 2020-02-28 | 中国石油天然气股份有限公司 | Drainage gas production passageway intercommunication device |
| 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 |
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