CN204827331U - Eccentric oil pipe linkage is sealed to soft or hard - Google Patents
Eccentric oil pipe linkage is sealed to soft or hard Download PDFInfo
- Publication number
- CN204827331U CN204827331U CN201520392369.1U CN201520392369U CN204827331U CN 204827331 U CN204827331 U CN 204827331U CN 201520392369 U CN201520392369 U CN 201520392369U CN 204827331 U CN204827331 U CN 204827331U
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- CN
- China
- Prior art keywords
- oil pipe
- tubing hanger
- hanger body
- way
- ring
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Abstract
The utility model discloses an eccentric oil pipe linkage is sealed to soft or hard, including tubing hanger body, oil pipe cross, go up metal tapering sealing ring, go up the flange, metal tapering sealing ring, " O " type circle and jackscrew down, oil pipe cross suit is on oil pipe hangs the body, loop through between the lower part of tubing hanger body and the oil pipe cross first " O " type circle and down metal tapering sealing ring seal, the upper portion of oil pipe cross is provided with the flange, it seals to loop through second " O " type circle and last metal tapering sealing ring between the upper portion of tubing hanger body and the last flange of oil pipe cross, through jackscrew fixed seal between tubing hanger body middle part and the oil pipe cross. The utility model discloses an eccentric oil pipe linkage's top and bottom have simultaneously the metal sealed firmly with the rubber soft seal, just adopt split type seal structure, in case seal failure, only need to be changed the sealing member can, greatly reduced the maintenance cost.
Description
Technical field:
The utility model relates to oil underground mining corollary apparatus, more specifically relates to a kind of eccentric oil pipe hanging device.
Background technology:
In oil recovery field, oil pipe hanging apparatus is the essential elements of production wellhead.Existing eccentric oil pipe hanging device has following two aspect defects: one is bottom oil pipe hanging apparatus be that oil pipe hanging apparatus body bottom portion is designed to overall taper sealing with oil pipe four-way sealing pair structure, once taper sealing lost efficacy, whole oil pipe hanging apparatus is scrapped, and maintenance cost is huge; Two is soft seals that oil pipe hanging apparatus top and production tree sealing pair adopt recess-mounted "O"-ring structure, very easily perishable when marine petroleum exploitation is severe, causes seal failure.
Utility model content:
For the problems referred to above, the object of this practical utility model is the eccentric oil pipe hanging device providing a kind of soft and hard seal to have concurrently.This device can realize the top of eccentric oil pipe hanging device simultaneously and bottom metal seals and rubber sealing firmly, and adopts split type hermetically-sealed construction, once seal failure, only needs to change seal, greatly reduces maintenance cost.
The utility model is realized by following technical scheme.
Soft and hard seal eccentric oil pipe hanging apparatus, comprise tubing hanger body, oil pipe four-way, upper metal taper joint ring, upper flange, lower metal taper joint ring, "O"-ring and jackscrew, described tubing hanger body has eccentric oil pipe hole and excentral cable passes through hole, described oil pipe four-way is set on tubing hanger body, sealed by the first "O"-ring and lower metal taper joint ring successively between the bottom of described tubing hanger body and oil pipe four-way, the top of described oil pipe four-way is provided with upper flange, sealed by the second "O"-ring and upper metal taper joint ring successively between the top of described tubing hanger body and the upper flange of oil pipe four-way, jackscrew fixing seal is passed through in the middle part of described tubing hanger body and between oil pipe four-way.
As this technical scheme further, also be provided with towing loop, locking nut and alignment pin between the bottom of described tubing hanger body and oil pipe four-way, between the bottom of described tubing hanger body and oil pipe four-way, carry out further fixing seal by towing loop, locking nut and alignment pin.
As this technical scheme further, have BPV screw thread in the middle part of the eccentric oil pipe hole on described tubing hanger body, this BPV screw thread is for installing counterbalance valve.
Compared with prior art, the advantage that has of the utility model:
(1) tubing hanger body has eccentric oil pipe screwed hole and excentral cable pass through hole, eccentric oil pipe hole is for hanging oil pipe, and excentral cable passes through hole for passing through the cable of electric submersible pump, meets the requirement of marine petroleum exploitation operating mode.
(2) hermetically-sealed construction all adopting the soft or hard of "O"-ring and Split type metal taper sealing ring to have concurrently between tubing hanger top and the bottom and oil pipe four-way sealing pair, "O"-ring is the rubber sealing that can realize fast sealing, metal taper joint ring is the metal hard-sealing that can realize permanent sealing, if there is seal failure after permanent use, only need to change metallic packing ring or "O"-ring, do not need overall oil pipe hanging apparatus to scrap, greatly reduce the maintenance cost of oil exploitation well head.
(3) there is BPV screw thread in the middle of oil pipe hanging apparatus eccentric oil pipe hole, for installing counterbalance valve, under can be implemented in situation with pressure, safeguarding production tree and changing production tree valve, facilitating production wellhead to safeguard.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present embodiment.
Detailed description of the invention:
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model statement.
See Fig. 1, soft and hard seal eccentric oil pipe hanging apparatus, comprise tubing hanger body 4, oil pipe four-way 14, upper metal taper joint ring 1, upper flange 10, lower metal taper joint ring 6, "O"-ring, towing loop 7, locking nut 8, alignment pin 9 and jackscrew 13.Tubing hanger body 4 has an eccentric oil pipe hole A and an excentral cable passes through hole B.Eccentric oil pipe hole A is for hanging oil pipe, and excentral cable passes through hole B for passing through the cable of electric submersible pump, meets marine petroleum exploitation working condition requirement.Oil pipe four-way 14 is set on tubing hanger body 4.In bottom, tubing hanger body 4 is seated on the step of oil pipe four-way 14 by towing loop 7.Above towing loop 7, upwards carry out sealing by lower metal taper joint ring 6 and the first "O"-ring 5 successively between tubing hanger body 4 and oil pipe four-way 14 and fix; First "O"-ring 5 forms the soft seal between tubing hanger body 4 and oil pipe four-way 14, and lower metal taper joint ring 6 forms the metal hard-sealing between tubing hanger body 4 and oil pipe four-way 14.In the below of towing loop 7, locking nut 8 and alignment pin 9 is also provided with between tubing hanger body 4 and oil pipe four-way 14, alignment pin 9 is placed in the groove of oil pipe four-way 14, realize the location of tubing hanger body 4, locking nut 8 is then for fixing further between tubing hanger body 4 bottom and oil pipe four-way 14.
At the top of tubing hanger body 4, oil pipe four-way 14 is provided with upper flange 10, between upper flange 10 and oil pipe four-way 14, adds packing ring 12, be fixed together by bolt and nut 11 between upper flange 10 and oil pipe four-way 14.Second "O"-ring 3 and upper metal taper joint ring 1 are installed between tubing hanger body 4 top and upper flange 10, upper metal taper joint ring 1 are fixed with a jump ring 2; "O"-ring 3 realizes the soft seal between oil pipe hanging apparatus and upper flange 10, and upper metal taper joint ring 1 realizes the metal hard-sealing between tubing hanger body and upper flange 10.The hermetically-sealed construction that the soft or hard of "O"-ring and Split type metal taper sealing ring has concurrently is all adopted between tubing hanger top and the bottom of the present utility model and oil pipe four-way sealing pair, "O"-ring is the rubber sealing that can realize fast sealing, metal taper joint ring is the metal hard-sealing that can realize permanent sealing, if there is seal failure after permanent use, only need to change metallic packing ring or "O"-ring, do not need overall oil pipe hanging apparatus to scrap, greatly reduce the maintenance cost of oil exploitation well head.
At the middle part of tubing hanger body 4, between tubing hanger body 4 and oil pipe four-way 14, be provided with multiple jackscrew 13, tighten the bolt and nut 11 between upper flange 10 and oil pipe four-way 14, tighten jackscrew 13, can realize sealing in the middle part of oil pipe hanging apparatus.
A two ends, eccentric oil pipe hole on tubing hanger body have been provided with tubing round thread, for installing oil pipe.And BPV screw thread C is provided with in the centre of eccentric oil pipe hole A, for installing counterbalance valve, low pressure can be hung by packing oil like this, realizing wellheadpressure and safeguard production tree and change production tree valve.
Claims (3)
1. soft and hard seal eccentric oil pipe hanging apparatus, comprise tubing hanger body, oil pipe four-way, upper metal taper joint ring, upper flange, lower metal taper joint ring, "O"-ring and jackscrew, it is characterized in that, described tubing hanger body has eccentric oil pipe hole and excentral cable passes through hole, described oil pipe four-way is set on tubing hanger body, sealed by the first "O"-ring and lower metal taper joint ring successively between the bottom of described tubing hanger body and oil pipe four-way, the top of described oil pipe four-way is provided with upper flange, sealed by the second "O"-ring and upper metal taper joint ring successively between the top of described tubing hanger body and the upper flange of oil pipe four-way, jackscrew fixing seal is passed through in the middle part of described tubing hanger body and between oil pipe four-way.
2. soft and hard seal eccentric oil pipe hanging apparatus according to claim 1, it is characterized in that, also be provided with towing loop, locking nut and alignment pin between the bottom of described tubing hanger body and oil pipe four-way, between the bottom of described tubing hanger body and oil pipe four-way, carry out further fixing seal by towing loop, locking nut and alignment pin.
3. soft and hard seal eccentric oil pipe hanging apparatus according to claim 1, is characterized in that, has BPV screw thread in the middle part of the eccentric oil pipe hole on described tubing hanger body, and this BPV screw thread is for installing counterbalance valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392369.1U CN204827331U (en) | 2015-06-10 | 2015-06-10 | Eccentric oil pipe linkage is sealed to soft or hard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392369.1U CN204827331U (en) | 2015-06-10 | 2015-06-10 | Eccentric oil pipe linkage is sealed to soft or hard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827331U true CN204827331U (en) | 2015-12-02 |
Family
ID=54684942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520392369.1U Expired - Fee Related CN204827331U (en) | 2015-06-10 | 2015-06-10 | Eccentric oil pipe linkage is sealed to soft or hard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094176A (en) * | 2018-01-30 | 2019-08-06 | 东营市创元石油机械制造有限公司 | Oil drilling mud saver valve |
-
2015
- 2015-06-10 CN CN201520392369.1U patent/CN204827331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094176A (en) * | 2018-01-30 | 2019-08-06 | 东营市创元石油机械制造有限公司 | Oil drilling mud saver valve |
| CN110094176B (en) * | 2018-01-30 | 2024-08-13 | 东营市创元石油机械制造有限公司 | Mud splash-proof valve for petroleum drilling |
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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: 20151202 Termination date: 20160610 |