CN204113187U - Rodless oil production wellhead air-tight device - Google Patents
Rodless oil production wellhead air-tight device Download PDFInfo
- Publication number
- CN204113187U CN204113187U CN201420672918.6U CN201420672918U CN204113187U CN 204113187 U CN204113187 U CN 204113187U CN 201420672918 U CN201420672918 U CN 201420672918U CN 204113187 U CN204113187 U CN 204113187U
- Authority
- CN
- China
- Prior art keywords
- well head
- rodless oil
- oil extraction
- cable
- closely packed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 238000000605 extraction Methods 0.000 claims description 27
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000003129 oil well Substances 0.000 claims description 5
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract 2
- 210000002445 nipple Anatomy 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Cable Accessories (AREA)
Abstract
The utility model belongs to the technical field of rodless oil recovery well head mechanical equipment, specifically provide a rodless oil recovery well head airtight device, including the sleeve pipe tee bend, cup joint the two public nipple joints in the sleeve pipe tee bend, set up the lower flange in sleeve pipe tee bend upper end to and set up the upper flange in two public short upper ends, it is fixed through screw bolt and nut between lower flange and the upper flange, the side of upper flange is provided with the cable joint body, the inside sealed clamp splice that is provided with in cable joint body upper end, sealed clamp splice upper portion is provided with presses the backing ring, cable joint body top threaded connection has the pressure cap. The utility model clamps the cable through the sealing clamping block, and effectively blocks the gap of leaking gas by using the plastic deformation of the sealing clamping block so as to achieve the purpose of sealing; meanwhile, the rodless oil production wellhead airtight device is simple in structure, convenient to operate and suitable for rodless oil pumping units such as submersible direct-drive screw pumps and submersible linear motors with large gas content.
Description
Technical field
The utility model belongs to Rodless oil extraction well head mechanical equipment technical field, is specifically related to a kind of Rodless oil extraction well head gas closely packed and puts, for the large latent oily directly-driven screw pump, oil immersion line motor etc. of air content without bar oil pumper.
Background technology
At present, the Rodless oil extraction well head that non-lever oil production well enters under all adopting charged cable, carries out under generally all needing sealing state to the various detections in producing well, and existing research is then mainly for the sealing between well head and the external world.
As Chinese patent CN2723675Y discloses one " Detactable wellhead device of screw rod pump oil production system ", comprise well head and the drive unit with central tube, central tube is connected with well head by taper thread, the center of the misalignment well head of central tube, instrument connection place on well head connects with seal gate valve and the inclination skirt splitting gate valve, splits the centre bore after the rubber flashboard docking in gate valve and test steel wire interference fit.This device enters tester by under skirt, makes tester can be lowered into down-hole smoothly, convenient test, solves the problem that screw pump oil production well head device can not be tested; But, this device under enter tester time, by making well head and the external world be in sealing state to seal gate valve and the cooperation switch of splitting gate valve, the encapsulating method of this device is only applicable to tester and enters completely down, and for being connected by cable and the extraneous tester transmitting data, this encapsulating method is then inapplicable.
For the oil well that air content is large, do not have Rodless oil extraction well head can carry out sealing to gas and prevent it from leaking, the especially sealing that goes out of cable adapter position, the profile due to cable is flat, adopts generally common seal form to have any problem.
Utility model content
The purpose of this utility model to overcome in prior art Rodless oil extraction well head to the problem of gas tightness difference.
For this reason, the utility model provides a kind of Rodless oil extraction well head gas closely packed and puts, comprise sleeve pipe threeway, be socketed in the double male joint in sleeve pipe threeway, be arranged on the lower flange of sleeve pipe threeway upper end, and be arranged on the upper flange of two public short upper end, fixed by screw bolt and nut between lower flange and upper flange, the side of described upper flange is provided with cable joint body, inside, described cable joint body upper end is provided with sealing fixture block, described sealing fixture block top is provided with pressure pad ring, and described cable joint body screw top is connected with pressure cap.
Above-mentioned pressure cap top is connected with cable protection cover.
Above-mentioned cable protection cover inside is provided with cable baffle plate.
Above-mentioned cable protection cover inside is provided with wire loop.
Inside, above-mentioned cable joint body upper end is provided with a taper hole, and sealing fixture block is placed in this taper hole.
Above-mentioned sealing fixture block is the cylindrical of two symmetrical semicircle synthesis.
Multiple circular hole has been arranged side by side along two semicircle fitting line directions in the middle of above-mentioned sealing fixture block.
Above-mentioned circular hole with under enter the bare wire interference fit of the cable of oil well.
The material of above-mentioned sealing fixture block is butyronitrile rubber or polyurethane rubber.
Gasket ring is provided with between above-mentioned lower flange and upper flange.
The beneficial effects of the utility model: this Rodless oil extraction well head gas closely packed that the utility model provides is put by sealing fixture block clamped cable line, utilizes the gap of the effective shutoff gas leakage of plastic deformation of sealing fixture block, to reach the object of sealing; Meanwhile, this Rodless oil extraction well head gas closely packed puts structure simply, easy to operate, is applicable to air content large latent oily directly-driven screw pump, oil immersion line motor etc. without bar oil pumper.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model Rodless oil extraction well head gas closely packed is put.
Fig. 2 is the top view sealing fixture block in the utility model.
Description of reference numerals: 1, sleeve pipe threeway; 2, double male joint; 3, lower flange; 4, gasket ring; 5, cable joint body; 6, fixture block is sealed; 7, pressure pad ring; 8, pressure cap; 9, cable protection cover; 10, cable baffle plate; 11, wire loop; 12, cable; 13, upper flange; 14, bolt; 15, nut; 16, circular hole.
Detailed description of the invention
Embodiment 1:
In order to overcome in prior art Rodless oil extraction well head to the problem of gas tightness difference, present embodiments provide a kind of Rodless oil extraction well head gas closely packed as shown in Figure 1 to put, comprise sleeve pipe threeway 1, be socketed in the double male joint 2 in sleeve pipe threeway 1, be arranged on the lower flange 3 of sleeve pipe threeway 1 upper end, and be arranged on the upper flange 13 of double male joint 2 upper end, fixed by bolt 14 and nut 15 between lower flange 3 and upper flange 13, the side of described upper flange 13 is provided with cable joint body 5, inside, described cable joint body 5 upper end is provided with sealing fixture block 6, described sealing fixture block 6 top is provided with pressure pad ring 7, described cable joint body 5 screw top is connected with pressure cap 8.
The course of work that the utility model Rodless oil extraction well head gas closely packed is put is as follows:
First, sleeve pipe threeway 1 lower end is connected with the sleeve pipe of non-lever oil production well, sleeve pipe threeway 1 upper end is connected with lower flange 3, two public short circuit 2 lower end is connected with the oil pipe of non-lever oil production well, two public short circuit 2 upper end is connected with upper flange 13, lower flange 3 is fixedly connected with nut 15 by bolt 14 with upper flange 13, and in order to avoid there is the leakage of gas between lower flange 3 and upper flange 13, between described lower flange 3 and upper flange 13, also gasket ring 4 can be set, reach better sealing effectiveness, cable joint body 5 and upper flange 13 are threaded connection.
Then, before cable enters oil well oil jacket annular space for 12 times, first cable joint body 5 need be passed through.Load sealing fixture block 6 on cable joint body 5 top, be clamped in by cable 12 in sealing fixture block 6, sealing fixture block 6 top reinstalls pressure pad ring 7, and pressure cap 8 is connected with cable joint body 5 top by screw thread.
Finally, screw in the process of pressure cap 8 and compress pressure pad ring 7, force sealing fixture block 6 to move down in cable joint body 5 by pressure pad ring 7, at this moment cable joint body 5 sidewall will produce radial compression power and clamping cables line 12 to sealing fixture block 6.
This Rodless oil extraction well head gas closely packed that this utility model provides is put by sealing fixture block clamped cable line, utilizes the gap of the effective shutoff gas leakage of plastic deformation of sealing fixture block 6, to reach the object of sealing.
Embodiment 2:
On the basis of embodiment 1, described pressure cap 8 top is connected with cable protection cover 9, and cable protection cover 9, for the stripped portion in shade cable 12 exit, better protects cable.
And do not rotate in order to ensure the cable 12 when cable protection cover 9 rotates, described cable protection cover 9 inside is provided with cable baffle plate 10, and cable baffle plate 10 is for attached cable line 12.
Described cable protection cover 9 inside is also provided with wire loop 11, and the design of wire loop 11 plays dustproof effect in cable protection cover 9.
Embodiment 3:
On the basis of embodiment 1, inside, described cable joint body 5 upper end is provided with one and is with the taper hole of slightly spending, and sealing fixture block 6 is placed in this taper hole; The extruding that sealing fixture block 6 is subject to pressure pad ring 7 in this taper hole moves down, because taper hole is with slightly spending, sealing fixture block 6 moves down in process and is subject to the increase of cable joint body 5 sidewall radial compression power, thus the sealing effectiveness of sealing fixture block 6 clamped cable line 12 is better, improves the sealing effectiveness between sealing fixture block 6 and cable joint body 5 simultaneously.
As shown in Figure 2, described sealing fixture block 6 is the cylindrical of two symmetrical semicircle synthesis, multiple circular hole 16 has been arranged side by side along two semicircle fitting line directions in the middle of described sealing fixture block 6, circular hole 16 is for the bare wire of clamped cable line 12, seal aperture and the hole count of circular hole 16 in fixture block 6, bare wire radical with cable 12 is relevant with nominal diameter, can obtain the sealing fixture block 6 of different pore size and hole count according to actual needs; Described circular hole 16 with under enter the bare wire interference fit of the cable of oil well.
In order to good sealing effectiveness, sealing fixture block 6 needs to select the good material of plasticity, and the material of described sealing fixture block 6 is butyronitrile rubber or polyurethane rubber; Meanwhile, butyronitrile rubber or polyurethane rubber material have good oil resistivity, can stand the corrosion of crude oil, increase the service life.
In addition, the gas pressurized that the utility model Rodless oil extraction well head gas closely packed is put through 5MPa is tested, in water, find no gas leakage.
In sum, this Rodless oil extraction well head gas closely packed that the utility model provides is put by sealing fixture block clamped cable line, utilizes the gap of the effective shutoff gas leakage of plastic deformation of sealing fixture block, to reach the object of sealing; Meanwhile, this Rodless oil extraction well head gas closely packed puts structure simply, easy to operate, is applicable to air content large latent oily directly-driven screw pump, oil immersion line motor etc. without bar oil pumper.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (10)
1. a Rodless oil extraction well head gas closely packed is put, comprise sleeve pipe threeway (1), be socketed in the double male joint (2) in sleeve pipe threeway (1), be arranged on the lower flange (3) of sleeve pipe threeway (1) upper end, and be arranged on the upper flange (13) of double male joint (2) upper end, fixed by bolt (14) and nut (15) between lower flange (3) and upper flange (13), it is characterized in that: the side of described upper flange (13) is provided with cable joint body (5), described cable joint body (5) inside, upper end is provided with sealing fixture block (6), described sealing fixture block (6) top is provided with pressure pad ring (7), described cable joint body (5) screw top is connected with pressure cap (8).
2. Rodless oil extraction well head gas closely packed as claimed in claim 1 is put, and it is characterized in that: described pressure cap (8) top is connected with cable protection cover (9).
3. Rodless oil extraction well head gas closely packed as claimed in claim 2 is put, and it is characterized in that: described cable protection cover (9) inside is provided with cable baffle plate (10).
4. Rodless oil extraction well head gas closely packed as claimed in claim 2 is put, and it is characterized in that: described cable protection cover (9) inside is provided with wire loop (11).
5. Rodless oil extraction well head gas closely packed as claimed in claim 1 is put, and it is characterized in that: described cable joint body (5) inside, upper end is provided with a taper hole, and sealing fixture block (6) is placed in this taper hole.
6. Rodless oil extraction well head gas closely packed as claimed in claim 1 is put, and it is characterized in that: described sealing fixture block (6) is the cylindrical of two symmetrical semicircle synthesis.
7. Rodless oil extraction well head gas closely packed as claimed in claim 6 is put, and it is characterized in that: be arranged side by side multiple circular hole (16) along two semicircle fitting line directions in the middle of described sealing fixture block (6).
8. Rodless oil extraction well head gas closely packed as claimed in claim 7 is put, and it is characterized in that: described circular hole (16) with under enter the bare wire interference fit of the cable of oil well.
9. Rodless oil extraction well head gas closely packed as claimed in claim 1 is put, and it is characterized in that: the material of described sealing fixture block (6) is butyronitrile rubber or polyurethane rubber.
10. Rodless oil extraction well head gas closely packed as claimed in claim 1 is put, and it is characterized in that: be provided with gasket ring (4) between described lower flange (3) and upper flange (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672918.6U CN204113187U (en) | 2014-11-12 | 2014-11-12 | Rodless oil production wellhead air-tight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672918.6U CN204113187U (en) | 2014-11-12 | 2014-11-12 | Rodless oil production wellhead air-tight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113187U true CN204113187U (en) | 2015-01-21 |
Family
ID=52330511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672918.6U Expired - Fee Related CN204113187U (en) | 2014-11-12 | 2014-11-12 | Rodless oil production wellhead air-tight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314505A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Rodless oil production wellhead air-tight device |
| CN108035691A (en) * | 2018-01-12 | 2018-05-15 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth T cables draw sealing three-way device |
| CN113685154A (en) * | 2020-05-18 | 2021-11-23 | 哈里伯顿能源服务公司 | Outward threadless baffle for perforating gun |
-
2014
- 2014-11-12 CN CN201420672918.6U patent/CN204113187U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314505A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Rodless oil production wellhead air-tight device |
| CN108035691A (en) * | 2018-01-12 | 2018-05-15 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth T cables draw sealing three-way device |
| CN113685154A (en) * | 2020-05-18 | 2021-11-23 | 哈里伯顿能源服务公司 | Outward threadless baffle for perforating gun |
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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: 20150121 |