CN108119086A - Interface conversion device - Google Patents
Interface conversion device Download PDFInfo
- Publication number
- CN108119086A CN108119086A CN201711181352.1A CN201711181352A CN108119086A CN 108119086 A CN108119086 A CN 108119086A CN 201711181352 A CN201711181352 A CN 201711181352A CN 108119086 A CN108119086 A CN 108119086A
- Authority
- CN
- China
- Prior art keywords
- sealing element
- switching device
- crossover flange
- interface
- passage section
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title abstract 8
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 210000002445 nipple Anatomy 0.000 claims abstract description 16
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 24
- 210000004907 gland Anatomy 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims 1
- 239000010779 crude oil Substances 0.000 abstract description 10
- 239000003921 oil Substances 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The application provides an interface conversion device, includes: the pressure testing device comprises an upper conversion flange and a lower conversion flange, wherein the upper conversion flange is provided with a pressure testing interface, the lower conversion flange is provided with an opening, a connector is arranged in the opening, and an axial through hole is formed in the connector; the upper end of the sealing element made of flexible elastic material is fixedly connected with the lower end of the upper conversion flange; a central channel is arranged in the sealing element and is communicated with the pressure test interface and the axial through hole; the side walls of the seal adjacent the middle portion are necked inward so that the central passage has an upper passage section adjacent the upper end, a lower passage section adjacent the lower end, and a middle passage section adjacent the middle portion and between the upper and lower passage sections, and the middle passage section has an inner diameter less than the inner diameters of the upper and lower passage sections. The interface conversion device of this application can strike off the crude oil of hollow nipple joint outer wall adhesion when sealed well head prevents that oil gas from taking place to reveal, avoids crude oil to fall to the ground well site environmental pollution who causes.
Description
Technical field
This application involves oil-gas mining technical field more particularly to a kind of interface switching devices.
Background technology
The description of this part only provide with the relevant background information of disclosure, without form the prior art.
During involving swab passage construction is established in oil well steam injection, because there is oil gas spilling in pit shaft, hollow pipe nipple outer wall is easy
Adhere to crude oil.In upper exhaust heart pipe nipple, if well head is in open state, can not be docked with flange there are clip, well head it is not close
Envelope so as to cause the crude oil landing of hollow pipe nipple outer wall is adhered to, causes well site environmental pollution.
It should be noted that the introduction of technical background is intended merely to above it is convenient the technical solution of the application is carried out it is clear,
Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes the application's
Background section is set forth and thinks that above-mentioned technical proposal is known to those skilled in the art.
The content of the invention
Based on foregoing prior art defect, this application provides a kind of interface switching devices, are prevented in sealing wellhead
While oil gas is revealed, the crude oil of hollow pipe nipple outer wall adherency can be struck off, avoids well site environment caused by crude oil landing
Pollution.
To achieve these goals, this application provides following technical solutions.
A kind of interface switching device, including：
Upper crossover flange, the upper crossover flange are provided with pressure testing interface；
Lower crossover flange, the lower crossover flange are provided with opening, and connector is provided in the opening, is set in the connector
It is equipped with axially extending bore；
The sealing element made of soft elastic material, the upper end are fixedly connected on the lower end of the upper crossover flange；It is described close
Central passage is set in sealing, and the central passage is connected with the pressure testing interface and the axially extending bore；The sealing
The inside constriction of side wall of the part close to middle part, so as to which the central passage has the upper channel section close to upper end, close to lower end
Lower passage section and close middle part and the central passage section between the upper channel section and lower passage section, and
The internal diameter of the central passage section is less than the internal diameter of the upper channel section and the lower passage section.
Preferably, the pressure testing interface is arranged on the middle part of the upper crossover flange, is provided on the upper crossover flange
Multiple first through hole on the outside of the pressure testing interface, multiple first through hole are around the pressure testing interface with annular array
Form arrangement.
Preferably, described be open is arranged on the middle part of the lower crossover flange, is provided on the lower crossover flange multiple
Positioned at the second through hole of the open outer side, multiple second through holes are arranged around the opening in the form of annular array.
Preferably, protective shell, the lower end of the protective shell and the lower end of the lower crossover flange are inserted in the opening
Face flush, the sealing element are contained in the protective shell, and the connector is arranged in the protective shell.
Preferably, outer wall of the sealing element close to upper end extends outward to form extension, the lower end of the extension to
Sunken inside is formed with limiting slot；The upper end of the protective shell raises up to form positive stop key, and the positive stop key is plugged in the limit
In the slot of position.
Preferably, outer wall of the protective shell close to upper end is arranged with gland, and the gland is consolidated with the upper crossover flange
Fixed connection, outer wall of the sealing element close to upper end are fitted in the inner wall of the gland.
Preferably, the sealing element is made of rubber material.
Preferably, the lower end of the sealing element and the upper end interval of the connector；When the central passage wear it is hollow short
During section, the sealing element axial elongation, so as to which its lower end top is solid in the upper end of the connector.
Preferably, the internal diameter of the upper channel section and lower passage section is equal, and the upper channel section and lower part lead to
Road section is symmetrical arranged.
Preferably, the inner wall of the upper channel section tilts down to form the first guiding incline, the lower passage section it is interior
Wall is inclined upwardly to form the second guiding incline.
The interface switching device of the application embodiment is sealed by being set between upper crossover flange and lower crossover flange
Part, the inside constriction of side wall of the sealing element close to middle part, so as to which the central passage of sealing element is forming internal diameter close to the position at middle part
Less than the central passage section of upper and lower ends internal diameter, when hollow pipe nipple is worn in central passage, the smaller middle part of internal diameter size
Channel section can tightly wrap the outer wall of hollow pipe nipple, so as to while wellhead sealing is realized, be adhered to hollow pipe nipple
The crude oil of outer wall strikes off, and avoids crude oil landing pollution well site environment.
Other application field will become apparent according to description provided herein.The description of present invention and specifically show
Example is only intended to the purpose illustrated, it is not intended that limits the scope of the invention.
Description of the drawings
Task of explanation is only used for attached drawing described here, and is not intended in any way limit model disclosed in the present application
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, the understanding to the application is used to help, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Various possible shapes and proportional sizes to be selected to implement the application as the case may be.In the accompanying drawings：
Fig. 1 is the structure diagram of the interface switching device of the application embodiment.
Specific embodiment
It should be noted that when a parts are referred to as " being arranged at " another parts, it can be directly another
On a parts or there may also be parts placed in the middle.When a parts are considered as " connection " another parts,
It can be directly to another parts or may be simultaneously present parts placed in the middle.Term as used herein " is hung down
Directly ", " level ", "left", "right" and similar statement are for illustrative purposes based on Figure of description, are not offered as being only
One embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and the technical field of the application is belonged to
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
The arbitrary and all combination of relevant Listed Items.
As shown in Figure 1, the application embodiment provides a kind of interface switching device, can include：Upper crossover flange
1, the upper crossover flange 1 is provided with pressure testing interface 101；Lower crossover flange 2, the lower crossover flange 2 are provided with opening 201,
Connector 3 is provided in the opening 201, axially extending bore 301 is provided in the connector 3；It is sealed made of soft elastic material
Part 4, the upper end are fixedly connected on the lower end of the upper crossover flange 1；Central passage 401 is set in the sealing element 4, in described
Heart passage 401 is connected with the pressure testing interface 101 and the axially extending bore 301；The sealing element 4 is close to the side wall at middle part
Inside constriction, so as to which the central passage 401 has the upper channel section 4011 close to upper end, the lower passage section close to lower end
4012 and close to middle part and the central passage section between the upper channel section 4011 and lower passage section 4012
4013, and the internal diameter of the central passage section 4013 is less than the upper channel section 4011 and the lower passage section 4012
Internal diameter.
The interface switching device of the application embodiment, it is close by being set between upper crossover flange 1 and lower crossover flange 2
Sealing 4, the inside constriction of side wall of the sealing element 4 close to middle part, so that the central passage 401 of sealing element 4 is close to the position at middle part
The central passage section 4013 that internal diameter is less than upper and lower ends internal diameter is formed, when hollow pipe nipple is worn in central passage 401, internal diameter
The smaller central passage section 4013 of size can tightly wrap the outer wall of hollow pipe nipple, so as to realize the same of wellhead sealing
When, the crude oil for being adhered to hollow pipe nipple outer wall is struck off, avoids crude oil landing pollution well site environment.
In the present embodiment, upper crossover flange 1 can be in substantially pie, be used to be connected with Wellhead packer, thereon
The pressure testing interface 101 of setting and the opening 201 of the central passage 401 of sealing element 4 and lower crossover flange 2 connect, to be formed
The passage worn for hollow pipe nipple activity.Pressure testing interface 101 is preferably provided in the middle part of crossover flange 1, upper crossover flange 1
On can be provided with multiple first through hole 102 positioned at the outside of pressure testing interface 101, multiple first through hole 102 surround pressure testing interface
101 are arranged in the form of annular array.First through hole 102 for fastening bolt for wearing, so as to be realized by fastening bolt
The connection of crossover flange 1 and blowout preventer.
In the present embodiment, lower crossover flange 2 also can be in substantially pie, be used to be connected with head valve.Equally
, opening 201 is preferably provided in the middle part of lower crossover flange 2, and multiple be located at outside opening 201 is provided on lower crossover flange 2
Second through hole 202 of side, multiple second through holes 202 are arranged around opening 201 in the form of annular array.Second through hole 202 is used
It is worn in for fastening bolt, so as to realize the connection of lower crossover flange 2 and head valve by fastening bolt.
In the present embodiment, sealing element 4 is substantially cylindrical in shape, and can have the material system of soft elastic by rubber etc.
Into so as to which when the central passage 401 of sealing element 4 does not wear hollow pipe nipple, the upper end of lower end and connector 3 is separately；When
When its central passage 401 wears hollow pipe nipple, axial elongation can occur for sealing element 4 so that its lower end push up affixed first 3 it is upper
End.
In the present embodiment, the internal diameter of upper channel section 4011 and lower passage section 4012 is preferably equal, and top leads to
Road section 4011 and lower passage section 4012 are symmetrical arranged.
In order to be oriented to the movement of hollow pipe nipple, the inner wall of upper channel section 4011 can tilt down to form first
Guiding incline 4014, the inner wall of lower passage section 4012 can be inclined upwardly to form the second guiding incline 4015.The top sequentially formed
Channel section 4011 and the cross sectional shape of lower passage section 4012 can be in substantially isosceles trapezoid shape as shown in Figure 1, in this way, hollow short
The end of section can smoothly enter upper channel section under the guiding role of the first guiding incline 4014 and the second guiding incline 4015
4011 and lower passage section 4012.
In order to protect sealing element 4 from extraneous infringement, protective shell can be inserted in the opening 201 of lower crossover flange 2
5, the lower end of protective shell 5 and the lower face flush of lower crossover flange 2, sealing element 4 are contained in protective shell 5, and connector 3 is arranged on
In protective shell 5.
In the present embodiment, protective shell 5 substantially can be in the tubular of both ends open, and lower end is plugged in lower crossover flange 2
Opening 201 and fixed, the mode that protective shell 5 is preferably connected through a screw thread removably is arranged in opening 201.
In addition, in order to which position of the sealing element 4 in protective shell 5 is enable to fix, outer wall of the sealing element 4 close to upper end is outside
Extension 402 is extended to form, the lower end of extension 402, which is recessed inwardly, is formed with limiting slot 403.The upper end of protective shell 5 is upward convex
It rises and forms positive stop key 501, positive stop key 501 is plugged in the limiting slot 403.Pass through the cooperation of limiting slot 403 and positive stop key 501
Effect, can cause sealing element 4 to be fixed in protective shell 5, prevent sealing element 4 from play occurs.
The upper end of protective shell 5 is preferably fixedly connected with upper crossover flange 1, specifically, outer wall set of the protective shell 5 close to upper end
Equipped with gland, gland is fixedly connected with upper crossover flange, and outer wall of the sealing element 4 close to upper end is fitted in the inner wall of gland.
In the present embodiment, gland substantially can be in the tubular of both ends open 201, and the upper end can be by welding
It is fixed on the bottom wall of crossover flange.Protective shell 5 can be achieved a fixed connection with gland by way of screw thread.
The interface switching device of the application embodiment is in Liaohe Oil Field Gao Yiqu, Yu Lou, Shuan Bei, dawn, horse circle
Oil fields is waited to be applied successfully, add up to implement 42 wells, increase 6804.24 tons of oil, 1087.32 ten thousand yuan of wound effect, economic effect is shown
It writes.
It should be noted that in the description of the present application, term " first ", " second " etc. are only used for description purpose and difference
Similar object between the two and there is no sequencing, can not be interpreted as indicating or implying relative importance.In addition,
In the description of the present application, unless otherwise indicated, " multiple " are meant that two or more.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications outside the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the scope of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this
The four corner of the equivalent that a little claims are possessed determines.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part for theme.
Claims (10)
1. a kind of interface switching device, which is characterized in that including：
Upper crossover flange, the upper crossover flange are provided with pressure testing interface；
Lower crossover flange, the lower crossover flange are provided with opening, and connector is provided in the opening, is provided in the connector
Axially extending bore；
The sealing element made of soft elastic material, the upper end are fixedly connected on the lower end of the upper crossover flange；The sealing element
Middle setting central passage, the central passage are connected with the pressure testing interface and the axially extending bore；The sealing element leans on
The inside constriction of side wall at nearly middle part, so as to which the central passage has the upper channel section close to upper end, the lower part close to lower end
Channel section and close middle part and the central passage section between the upper channel section and lower passage section, and it is described
The internal diameter of central passage section is less than the internal diameter of the upper channel section and the lower passage section.
2. interface switching device as described in claim 1, which is characterized in that the pressure testing interface is arranged on the upper transformation approach
Blue middle part, is provided with multiple first through hole on the outside of the pressure testing interface on the upper crossover flange, and multiple described the
One through hole is arranged around the pressure testing interface in the form of annular array.
3. interface switching device as described in claim 1, which is characterized in that the opening is arranged on the lower crossover flange
Middle part is provided with multiple the second through holes positioned at the open outer side on the lower crossover flange, and multiple second through holes enclose
It is arranged around the opening in the form of annular array.
4. interface switching device as described in claim 1, which is characterized in that protective shell, the guarantor are inserted in the opening
The lower end of protective case and the lower face flush of the lower crossover flange, the sealing element is contained in the protective shell, described to connect
Head is arranged in the protective shell.
5. interface switching device as claimed in claim 4, which is characterized in that the sealing element close to upper end outer wall to extension
It stretches to form extension, the lower end of the extension, which is recessed inwardly, is formed with limiting slot；The upper end of the protective shell raises up shape
Into positive stop key, the positive stop key is plugged in the limiting slot.
6. interface switching device as claimed in claim 4, which is characterized in that outer wall of the protective shell close to upper end is arranged with
Gland, the gland are fixedly connected with the upper crossover flange, and outer wall of the sealing element close to upper end is fitted in the gland
Inner wall.
7. interface switching device as described in claim 1, which is characterized in that the sealing element is made of rubber material.
8. interface switching device as described in claim 1, which is characterized in that the lower end of the sealing element is upper with the connector
End interval；When the central passage wears hollow pipe nipple, the sealing element axial elongation connects so as to which its lower end top is solid described
The upper end of head.
9. interface switching device as described in claim 1, which is characterized in that the upper channel section and lower passage section it is interior
Footpath is equal, and the upper channel section and lower passage section are symmetrical arranged.
10. interface switching device as described in claim 1, which is characterized in that the inner wall of the upper channel section tilts down
The first guiding incline is formed, the inner wall of the lower passage section is inclined upwardly to form the second guiding incline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181352.1A CN108119086A (en) | 2017-11-23 | 2017-11-23 | Interface conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181352.1A CN108119086A (en) | 2017-11-23 | 2017-11-23 | Interface conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119086A true CN108119086A (en) | 2018-06-05 |
Family
ID=62228478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711181352.1A Pending CN108119086A (en) | 2017-11-23 | 2017-11-23 | Interface conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119086A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296323A (en) * | 2018-10-16 | 2019-02-01 | 中国石油天然气股份有限公司 | Well mouth cleaning device for centralizing sucker rod for workover operation and operation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3500907A (en) * | 1968-12-05 | 1970-03-17 | Lockheed Aircraft Corp | Closed flushing and vapor elimination system for wireline components |
| CN2281417Y (en) * | 1996-09-26 | 1998-05-13 | 孟庆云 | Oil scraper for sucker rod |
| CN102061901A (en) * | 2010-12-14 | 2011-05-18 | 雷宽成 | Compensation type multi-purpose annular blowout preventer |
| CN203097799U (en) * | 2013-01-10 | 2013-07-31 | 中国石油天然气股份有限公司 | Inflatable oil scraping self-sealing well sealer |
-
2017
- 2017-11-23 CN CN201711181352.1A patent/CN108119086A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3500907A (en) * | 1968-12-05 | 1970-03-17 | Lockheed Aircraft Corp | Closed flushing and vapor elimination system for wireline components |
| CN2281417Y (en) * | 1996-09-26 | 1998-05-13 | 孟庆云 | Oil scraper for sucker rod |
| CN102061901A (en) * | 2010-12-14 | 2011-05-18 | 雷宽成 | Compensation type multi-purpose annular blowout preventer |
| CN203097799U (en) * | 2013-01-10 | 2013-07-31 | 中国石油天然气股份有限公司 | Inflatable oil scraping self-sealing well sealer |
Non-Patent Citations (1)
| Title |
|---|
| 郭明刚: "蒸汽降粘恢复油井捞油生产技术", 《内燃机与配件》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296323A (en) * | 2018-10-16 | 2019-02-01 | 中国石油天然气股份有限公司 | Well mouth cleaning device for centralizing sucker rod for workover operation and operation method thereof |
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Application publication date: 20180605 |