CN208966275U - Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device - Google Patents
Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device Download PDFInfo
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- CN208966275U CN208966275U CN201821569917.3U CN201821569917U CN208966275U CN 208966275 U CN208966275 U CN 208966275U CN 201821569917 U CN201821569917 U CN 201821569917U CN 208966275 U CN208966275 U CN 208966275U
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- friction plate
- central tube
- leather cup
- track groove
- pressure
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Abstract
The utility model relates to a kind of energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer devices, including central tube (4), top connection (1), lower contact (13), interstage sleeve (2), sphere (3), leather cup (5), friction plate pedestal (6), O-ring seal (7), anti-rotation pin (8), pressure ring (9), track pin (12), tubing coupling (14), sand control screen (15) and silk plug (16), the outer wall of central tube (4) upper end is connect with the lower thread of top connection (1), the outer wall of lower end is connect with the threaded upper ends of lower contact (13), interstage sleeve (2) is close to the top connection (1).The utility model has the advantages that: in rod-pumped well hot wash, flushing fluid will not be entered in low pressure reservoir, eliminate pollution and injury of the flushing fluid to oil reservoir.During inspection pumps up out pumping tubing string, liquid is all stayed in well by pressure release passage in well, eliminates the pollution to well site environment.
Description
Technical field
The utility model relates to a kind of energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer devices, are related to field use skill
Art field, belonging to a kind of oilfield pumping well prevents flushing fluid from entering oil reservoir during hot-washing wax remover and improves well-flushing efficiency
Device.
Background technique
Currently, rod-pumped well is in process of production, in order to effectively remove the deposition of wax, scene generallys use heat carrier and follows
The method of washing-round well improves temperature in wellbore, more than the fusing point of wax, wax fusing is made to achieve the purpose that wax removal.
For some low pressure wells, the raising of flowing bottomhole pressure (FBHP) when due to hot wash enters a big chunk flushing fluid in oil reservoir,
The pollution and injury to oil reservoir are thus caused, and flushing fluid dosage is larger, while restoring normal after also resulting in hot wash
The time of production status is longer.And existing generally existing two problems of technology.First is that the sealing element of flushing fluid is isolated in device
Alternating load is influenced when being worked by pumping unit, and leakproofness and service life are in a lower level.Second is that being pumped in inspection
When, pumping tubing string out has been needed, and similar to the self-sealing sealing element of leather cup composition, the liquid of upper part, which can not be let out down, stays in well
It is interior, but ground all finally is given rise to, very big influence is caused to well site environment and construction.
Summary of the invention
To overcome the shortcomings of existing technologies, the utility model provides a kind of energy saving and environment friendly leather cup pressure release type hot wash not pressure oil
Layer device, the technical solution of the utility model is:
Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device, including central tube (4), top connection (1), lower contact
(13), interstage sleeve (2), sphere (3), leather cup (5), friction plate pedestal (6), O-ring seal (7), anti-rotation pin (8), pressure ring (9),
Track pin (12), tubing coupling (14), sand control screen (15) and silk plug (16), the outer wall of central tube (4) upper end with it is upper
The lower thread of connector (1) connects, and the outer wall of lower end is connect with the threaded upper ends of lower contact (13), and interstage sleeve (2) is close to described
The lower end of top connection (1), the interstage sleeve (2) is connect with the inner thread of central tube (4), and sphere (3) is preset at the interior of interstage sleeve (2)
Portion, the channel in the central tube (4) are sealed by sphere (3), and leather cup (5) is sleeved on central tube (4) by friction plate pedestal (6)
Periphery, a positioning mechanism is additionally provided on the friction plate pedestal (6), on the upside of the positioning mechanism and the friction of downside
It is respectively provided on piece pedestal (6) pressure ring (9), the pressure ring (9) is fixed on by anti-rotation pin (8) with friction plate pedestal (6)
Together, the track pin (12) passes through the friction plate pedestal (6), on the central tube (4), along central tube
Length direction is provided with the first track groove and the second track groove, and the second track groove is located at the lower section of the first track groove, and not one
On straight line；The track pin (12) is slidably matched when on the first track groove with the first track groove；The track pin
When nail (12) is moved on the second track groove, it is slidably matched with the second track groove；Close to the central tube (4) at the first track groove
On be additionally provided with several relief holes；The lower end of lower contact (13) is connect with the threaded upper ends of tubing coupling (14), the tubing coupling
(14) lower end is connect with the threaded upper ends of sand control screen (15), and the lower end of the sand control screen (15) and silk plug (16) screw thread connect
It connects.
The positioning mechanism includes friction plate (10) and spring (11), and the friction plate (10) is mounted on friction plate bottom
In the groove of seat (6), the both ends of the friction plate are limited by the pressure ring of respective side (9) respectively, the friction plate (10) and friction
At least one spring (11) are installed between piece pedestal (6).
O-ring seal (7) are installed between the friction plate pedestal (6) and central tube (4).
The utility model has the advantages that: in rod-pumped well hot wash, flushing fluid will not be entered in low pressure reservoir, and elimination is washed
Pollution and injury of the well liquid to oil reservoir.During inspection pumps up out pumping tubing string, liquid is all stayed in by pressure release passage in well
In well, the pollution to well site environment is eliminated.
Detailed description of the invention
Fig. 1 is the agent structure schematic diagram of the utility model.
Fig. 2 is the use state of Fig. 1 with reference to figure.
Specific embodiment
Further describe the utility model combined with specific embodiments below, the advantages of the utility model and feature will be with
Description and it is apparent.But examples are merely exemplary for these, does not constitute any restrictions to the scope of the utility model.
It will be understood by those skilled in the art that can be to the utility model skill under the spirit and scope without departing from the utility model
The details and form of art scheme are modified or are replaced, but these modifications and replacement each fall within the protection scope of the utility model
It is interior.
Referring to Fig. 1 and Fig. 2, the lower part of Fig. 1 partial left side and the top on right side are connected together, for the ease of figure
Show, is divided into two sections.The utility model relates to a kind of energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer devices, including center
Pipe 4, top connection 1, lower contact 13, interstage sleeve 2, sphere 3, leather cup 5, friction plate pedestal 6, O-ring seal 7, anti-rotation pin 8, pressure ring
9, under track pin 12, tubing coupling 14, sand control screen 15 and silk plug 16, the outer wall of 4 upper end of central tube and top connection 1
End is threadedly coupled, and the outer wall of lower end connect with the threaded upper ends of lower contact 13, and interstage sleeve 2 is close to the top connection 1, the interstage sleeve 2
Lower end connect with the inner thread of central tube 4, sphere 3 is preset at the inside of interstage sleeve 2, and the channel in the central tube 4 is by ball
Body 3 seals, and leather cup 5 is sleeved on the periphery of central tube 4 by friction plate pedestal 6, is additionally provided with one on the friction plate pedestal 6
Positioning mechanism, is respectively provided with a pressure ring 9 on the upside of the positioning mechanism and on the friction plate pedestal 6 of downside, the pressure ring 9 passes through
Anti-rotation pin 8 is fixed together with friction plate pedestal 6, and the track pin 12 passes through the friction plate pedestal 6, described
Central tube 4 on, the length direction of central tube is provided with the first track groove and the second track groove, the second track groove is located at first
The lower section of track groove, and not point-blank；The track pin 12 is sliding with the first track groove when on the first track groove
Dynamic cooperation；When the track pin 12 is moved on the second track groove, it is slidably matched with the second track groove；Close to the first rail
Several relief holes are additionally provided on central tube 4 at road slot；The lower end of lower contact 13 is connect with the threaded upper ends of tubing coupling 14,
The lower end of the tubing coupling 14 is connect with the threaded upper ends of sand control screen 15, the lower end of the sand control screen 15 and 16 screw thread of silk plug
Connection.
The positioning mechanism includes friction plate 10 and spring 11, and the friction plate 10 is mounted on friction plate pedestal 6
In groove, the both ends of the friction plate are limited by the pressure ring of respective side 9 respectively, between the friction plate 10 and friction plate pedestal 6
At least one spring 11 is installed.
O-ring seal 7 is installed between the friction plate pedestal 6 and central tube 4.
The working principle of the utility model is: the device is when underground works normally, track pin 12 is located at track groove GD1
Interior, friction plate 10 generates certain frictional force under the action of 11 power of spring with 23 inner wall of casing of central tube periphery, guarantees skin
Bowl 5 is with 23 inner wall of casing relative to not moving, and the upper and lower displacement that central tube 4 is generated by pumping tubing string alternate load effect will not
It is applied to leather cup 5, so that the sealing performance and service life of leather cup 5 be effectively ensured.
It is upper mention pumping tubing string during, by leather cup 5, friction plate pedestal 6, O-ring seal 7, anti-rotation pin 8, pressure ring 9,
Friction plate 10, spring 11, track pin 12 pass through the first track groove on 4 outer surface of central tube (indicating the first track groove with GD1)
Relatively-movable movement mechanism YD is constituted, it, can be opposite due to the effect of frictional force between 23 inner wall of friction plate 10 and casing
Mobile movement mechanism YD is not mobile with central tube 4, when central tube 4 is with the A point for mentioning the first track groove GD1 on pumping tubing string
When, oil pipe is rotated clockwise 1-2 weeks in well head, and track pin 12 enters the second track groove GD2 at this time, continues above to mention pumping pipe
Column, track pin 12, which is moved to the second track groove slot GD2(, indicates the second track groove with GD2) B point, it is multiple on central tube 4
Relief hole reaches the top of leather cup 5, and the liquid on 5 top of leather cup enters inside central tube 4 by relief hole, by sand control screen 15
Afterwards, pressure release is completed.
As shown in Figure 2, pressure oil layer device 22 is not connected to the lower screen casing of pump to the energy saving and environment friendly leather cup pressure release type hot wash of the present invention
21 lower end, leather cup 5 and 23 inner wall of casing are in close contact, since leather cup material is oil resistant rubber, by with 23 inner wall of casing
It tight contacts between and forms sealing state, friction plate 10 contacts under 11 active force of spring with 23 inner wall of casing, and in casing 23
Wall generates very big normal pressure.Facing sleeve 23 is motionless.Therefore, because about 4 phase of central tube caused by pumping unit alternating load
Leather cup external member 5 is not interfered with to movement, effectively increases the sealing performance and service life of leather cup external member 5.
When rod-pumped well needs hot-washing wax remover, high temperature flushing fluid passes through 17 sleeve pipe annular space of well-flushing valve, with
The rising of well-flushing liquid level, flowing bottomhole pressure (FBHP) constantly increase, leather cup pressure release type hot wash is not logical in 22 upper center tube 4 of pressure oil layer device
Road is sealed by sphere 3, and when flushing fluid reaches leather cup 5, leather cup is tightly attached to 23 inner wall of casing under the action of upper and lower pressure difference
On, at this point, track pin 12 is located at the lowermost A point position of the first track groove (indicating the first track groove with GD1), prevent to wash
Well liquid passes through, and flushing fluid is made to cannot be introduced into oil reservoir 24, can only be entered in pump by pumping lower screen casing 21, and be recycled to ground through oil pipe
Production flow line.
When needed out down-hole oil tube inspection pump when, can upper lifting pipe post, due to rubbing between 23 inner wall of friction plate 10 and casing
The effect of power is wiped, it is relatively motionless, and central tube 4 moves up, track pin 12 is located at the lowermost A point of the first track groove GD1
It sets, rotates clockwise oil pipe 1-2 weeks in well head, track pin 12 enters in the second track groove GD2 at this time, continues above to mention pumping pipe
Column, track pin 12 are moved to the B point of the second track groove, and multiple relief holes on central tube 4 reach the top of leather cup 5, leather cup 5
The liquid on top enters inside central tube 4 by relief hole (indicating relief hole with alphabetical XYKD), laggard by sand control screen 15
It in the casing annulus for entering 5 lower part of leather cup, that is, has stayed in well, has been given rise to ground without the sealing due to leather cup.
Claims (3)
1. energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device, which is characterized in that including central tube (4), top connection
(1), lower contact (13), interstage sleeve (2), sphere (3), leather cup (5), friction plate pedestal (6), O-ring seal (7), anti-rotation pin
(8), pressure ring (9), track pin (12), tubing coupling (14), sand control screen (15) and silk plug (16), on the central tube (4)
The outer wall at end is connect with the lower thread of top connection (1), and the outer wall of lower end is connect with the threaded upper ends of lower contact (13), interstage sleeve
(2) close to the top connection (1), the lower end of the interstage sleeve (2) is connect with the inner thread of central tube (4), and sphere (3) is preset at
The inside of interstage sleeve (2), the channel in the central tube (4) are sealed by sphere (3), and leather cup (5) passes through friction plate pedestal (6) suit
Be additionally provided with a positioning mechanism on the periphery of central tube (4), the friction plate pedestal (6), on the upside of the positioning mechanism with
And be respectively provided with a pressure ring (9) on the friction plate pedestal (6) of downside, the pressure ring (9) passes through anti-rotation pin (8) and friction plate bottom
Seat (6) is fixed together, and the track pin (12) passes through the friction plate pedestal (6), in the central tube (4)
On, the length direction of central tube is provided with the first track groove and the second track groove, the second track groove is located at the first track groove
Lower section, and not point-blank；The track pin (12) is matched when on the first track groove with the sliding of the first track groove
It closes；When the track pin (12) is moved on the second track groove, it is slidably matched with the second track groove；Close to the first track
Several relief holes are additionally provided on central tube (4) at slot；The lower end of lower contact (13) and the threaded upper ends of tubing coupling (14)
Connection, the lower end of the tubing coupling (14) are connect with the threaded upper ends of sand control screen (15), the lower end of the sand control screen (15)
It is threadedly coupled with silk plug (16).
2. energy saving and environment friendly leather cup pressure release type hot wash according to claim 1 not pressure oil layer device, which is characterized in that described
Positioning mechanism include friction plate (10) and spring (11), the friction plate (10) is mounted on the groove of friction plate pedestal (6)
Interior, the both ends of the friction plate are limited by the pressure ring of respective side (9) respectively, the friction plate (10) and friction plate pedestal (6) it
Between at least one spring (11) are installed.
3. energy saving and environment friendly leather cup pressure release type hot wash according to claim 1 or 2 not pressure oil layer device, which is characterized in that
O-ring seal (7) are installed between the friction plate pedestal (6) and central tube (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018214250788 | 2018-08-31 | ||
| CN201821425078 | 2018-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966275U true CN208966275U (en) | 2019-06-11 |
Family
ID=66756533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821569917.3U Active CN208966275U (en) | 2018-08-31 | 2018-09-26 | Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098689A (en) * | 2018-08-31 | 2018-12-28 | 康庆刚 | Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device |
| CN114263438A (en) * | 2021-12-15 | 2022-04-01 | 中海石油(中国)有限公司 | Deep water oil gas well casing bypass annular pressure release device and method thereof |
-
2018
- 2018-09-26 CN CN201821569917.3U patent/CN208966275U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098689A (en) * | 2018-08-31 | 2018-12-28 | 康庆刚 | Energy saving and environment friendly leather cup pressure release type hot wash not pressure oil layer device |
| CN114263438A (en) * | 2021-12-15 | 2022-04-01 | 中海石油(中国)有限公司 | Deep water oil gas well casing bypass annular pressure release device and method thereof |
| CN114263438B (en) * | 2021-12-15 | 2023-12-08 | 中海石油(中国)有限公司 | Device and method for releasing sleeve bypass annular pressure of deep water oil-gas well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190819 Address after: Heilongjiang province Daqing City Honggang District 163000 Qing Nan Industrial Park Patentee after: Daqing Kangsheng Petroleum Energy-saving Technology Development Co., Ltd. Address before: 163355 Changkang Grand Company of Wuxing Village Post Office, Honggang District, Daqing City, Heilongjiang Province Patentee before: Kang Qinggang |
|
| TR01 | Transfer of patent right |