CN209483278U - A kind of well head head rigid fastening devices - Google Patents
A kind of well head head rigid fastening devices Download PDFInfo
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- CN209483278U CN209483278U CN201822212413.2U CN201822212413U CN209483278U CN 209483278 U CN209483278 U CN 209483278U CN 201822212413 U CN201822212413 U CN 201822212413U CN 209483278 U CN209483278 U CN 209483278U
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- locking
- retaining ring
- ring
- oral
- shackle
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Abstract
The utility model discloses a kind of well head head rigid fastening devices, be mounted on that high-pressure well is oral and low pressure well it is oral between, it is equipped with shackle therebetween, low pressure well is equipped with locking annular groove in word, shackle is locked in locking annular groove, shackle and high-pressure well it is oral between be equipped with locking sleeve, there is tapered slope in locking sleeve lower end, there is longitudinal grooved on the downside of locking sleeve, longitudinal grooved is equipped with positioning bolt, shackle upper end is equipped with fixes sleeve, positioning bolt passes through longitudinal grooved and connect with fixes sleeve, locking sleeve and high-pressure well it is oral between be equipped with retaining ring, the first locking screw is equipped on the inside of locking sleeve, the second locking screw is equipped on the outside of retaining ring, first locking screw is mutually twisted with the second locking screw, elastic ring is equipped on the inside of retaining ring, retaining ring upper end is equipped with locking retaining ring, the upper end for locking retaining ring, which is equipped with, determines Position lock ring, positioning lock ring are equipped with fixing bolt, and locking retaining ring and positioning lock ring are connected and fixed by fixing bolt.
Description
Technical field
The utility model relates to oil wells to be drilled well engineering device technique field, in particular to a kind of well head head rigid locking dress
It sets.
Background technique
The rigid fastening devices of well head head are generally used in deep water offshore drill completion system, mainly increase wellhead equipment
Bending resistance.Used equipment is all from American-European countries's import, just due to Chinese Sea oil development on the market at present
Step into deep water, deep water offshore drill completion interval of well jaws equipment be also it is at the early-stage, there are no special producers to make this respect at home
Product, but if being drilled well development into deep water, in view of bending resistance requirement of the special marine environment to wellhead equipment of deep water
Can be very high, the bending resistance requirement of wellhead equipment just must be taken into consideration in the equipment development of this respect.
Therefore the lock ability of well head and the well head head rigid fastening devices of bending resistance can be increased by being badly in need of one kind.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of lock ability that can increase well head and bending resistance
Well head head rigid fastening devices, increase is between the low pressure well of ocean well head system is oral and high-pressure well is oral, with special lock
Clamping tool is locked, this covering device is locked to high-pressure well is oral in the oral lock ring slot of low pressure well, is provided more than 900 tons
Pre- loading capability, to reach, high-pressure well is oral and the oral rigid locking of low pressure well.
One of the utility model well head head rigid fastening devices, be mounted on that high-pressure well is oral and low pressure well it is oral it
Between, which is characterized in that the high-pressure well is oral and low pressure well it is oral between be equipped with shackle, the low pressure well is equipped in word
Lock annular groove, the shackle be locked at locking annular groove in, the shackle and high-pressure well it is oral between be equipped with lock sleeve
There are tapered slope in cylinder, the locking sleeve lower end, and the tapered slope is contacted with shackle, have on the downside of the locking sleeve vertical
To fluting, the longitudinal grooved is equipped with positioning bolt, and the shackle upper end is equipped with fixes sleeve, and the positioning bolt is worn
It crosses longitudinal grooved to connect with fixes sleeve, the fixes sleeve is connect with shackle, and the locking sleeve and high-pressure well are oral
Between be equipped with retaining ring, the first locking screw is equipped on the inside of the locking sleeve, is equipped with the second locking screw on the outside of the retaining ring
Line, first locking screw are mutually twisted with the second locking screw, and elastic ring, the retaining ring are equipped on the inside of the retaining ring
Upper end is equipped with locking retaining ring, and the locking retaining ring is connect with retaining ring, connect on the outside of the locking retaining ring with locking sleeve inside,
With the oral connection of high-pressure well on the inside of the locking retaining ring, the upper end of the locking retaining ring is equipped with positioning lock ring, the positioning lock ring
Inside connect with the oral outside of high-pressure well, the positioning lock ring be equipped with fixing bolt, the locking retaining ring and position lock ring
It is connected and fixed by fixing bolt.
In above scheme, the shackle lower end is equipped with positioning pin, and the positioning pin fixes shackle.
In above scheme, the locking sleeve is cage construction.
In above scheme, the retaining ring is split ring.
In above scheme, the elastic ring includes the first elastic ring and the second elastic ring, first elastic ring and second
Elastic ring is arranged at intervals on the medial surface of retaining ring.
In above scheme, the locking annular groove is zigzag, and the shackle matches with locking annular groove.
Advantages and beneficial effects of the utility model lie in that the utility model provides a kind of well head head rigid fastening devices,
Be arranged in ocean well head system low pressure well is oral and high-pressure well it is oral between, high-pressure well, oral to be locked to low pressure well oral
In lock ring slot, the pre- loading capability more than 900 tons is provided, high-pressure well is oral and the oral rigid locking of low pressure well to reach.
Its structure is simple, easy to operate；Not only it can lock but also can be locking；Running tool can be needed to adjust according to the operation at scene
Lower compressive load is to adjust pretightning force size, to realize the job requirements of different operating conditions.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of well head head rigid fastening devices.
In figure: 1, high-pressure well is oral 2, fixing bolt 3, locking retaining ring 4, locking sleeve
5, the first locking screw 6, fixes sleeve 7, low pressure well be oral 8, shackle
9, annular groove 10, positioning pin 11, longitudinal grooved 12, positioning bolt are locked
13, the first elastic ring 14, the second locking screw 15, retaining ring 16, positioning lock ring
17, tapered slope 18, the second elastic ring
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
As shown in Figure 1, the utility model is a kind of well head head rigid fastening devices, it is mounted on high-pressure well oral 1 and low pressure
Between well head head 7, shackle 8 is equipped between high-pressure well oral 1 and low pressure well oral 7, low pressure well oral 7 is equipped with retaining ring
Slot 9, shackle 8 are locked in locking annular groove 9, and locking sleeve 4, lock sleeve are equipped between shackle 8 and high-pressure well oral 1
There are tapered slope 17 in 4 lower ends of cylinder, and tapered slope 17 is contacted with shackle 8, and locking sleeve 4 is cage construction, and there is longitudinal direction in downside
Fluting 11, longitudinal grooved 11 are equipped with positioning bolt 12, and 8 upper end of shackle is equipped with fixes sleeve 6, and positioning bolt 12 passes through vertical
It is connect to fluting 11 with fixes sleeve 6, fixes sleeve 6 is connect with shackle 8, is set between locking sleeve 4 and high-pressure well oral 1
There is a retaining ring 15, the first locking screw 5 is equipped on the inside of locking sleeve 4, is equipped with the second locking screw 14 on the outside of retaining ring 15, first
Locking screw 5 is mutually twisted with the second locking screw 14, more difficult disengagement after occlusion；Retaining ring 15 is that its inside of split ring is equipped with
Elastic ring, 15 upper end of retaining ring are equipped with locking retaining ring 3, and locking retaining ring 3 is connect with retaining ring 15,3 outside of locking retaining ring and locking
It is connected on the inside of sleeve 4,3 inside of locking retaining ring is connect with high-pressure well oral 1, and the upper end of locking retaining ring 3 is equipped with positioning lock ring 16, fixed
The inside of position lock ring 16 is connect with oral 1 outside of high-pressure well, and positioning lock ring 16 is equipped with fixing bolt 2, locks retaining ring 3 and positioning
Lock ring 16 is connected and fixed by fixing bolt 2.
Specifically, 8 lower end of shackle is equipped with positioning pin 10, to prevent shackle 8 from rotating.
Specifically, elastic ring includes the first elastic ring 13 and the second elastic ring 18, the first elastic ring 13 and the second elastic ring
18 are arranged at intervals on the medial surface of retaining ring 15.First elastic ring 13 and the second elastic ring 18 can play a supporting role, and make
It obtains retaining ring 15 and is in a kind of float conditions.
Working principle of the utility model is:
Rigid locking snap ring 8 is increased between high-pressure well oral 1 and low pressure well oral 7, passes through special running tool
Locking sleeve 4 is pushed, so that locking sleeve 4 squeezes shackle 8, so that shackle 8 is pressed into the retaining ring of low pressure well oral 7
In slot 9, to reach the locking of high-pressure well oral 1 and low pressure well oral 7.On the tapered inclined-plane 17 and lock of 4 lower end of locking sleeve
Tight snap ring 8 contacts to provide pretightning force, and the size of pretightning force can be realized by adjusting the lower pressure of running tool.Wherein,
Locking sleeve 4 be cage construction, on the downside of longitudinal grooved 11 there is positioning bolt 12 to be oriented to, to prevent lock sleeve
Cylinder 4 rotates.Since the lower end of locking sleeve 4 has tapered inclined-plane 17, push in place afterwards by the first lock of 4 inside of locking sleeve
Tight screw thread 5 and second locking screw 14 in 15 outside of retaining ring are mutually twisted and reach, and inside is equipped with 13 He of the first elastic ring
Second elastic ring 18, plays the supporting role to retaining ring 15, promotes retaining ring 15 to have the tendency that outside, in retaining ring 15
Upper end is equipped with the fixed retaining ring 15 of locking retaining ring 3.Positioning lock ring 16 is installed in the upper end of locking ring washer 3 to consolidate whole device
It is scheduled on the outside of high-pressure well oral 1, positioning lock ring 16 is equipped with fixing bolt 2, and positioning lock ring 16 and locking retaining ring 3 is mutually solid
It is fixed.Fixes sleeve 6 is installed in the upper end of shackle 8, shackle 8 is positioned, on the other hand given by one side fixes sleeve 6
Positioning bolt 12 provides support positioning, and the lower end of shackle 8 is sitting on the step of high-pressure well oral 1, in opening for shackle 8
Positioning pin 10 is installed at mouthful to prevent shackle 8 from rotating.
On the one hand whole device pushes locking sleeve 4 in running tool and promotes shackle 8 by the cooperation of all parts
It is locked in low pressure well oral 7, and locking sleeve 4 can be navigated to by retaining ring 15 by locked position, it will not be due to vibration
It unclamps, reaches permanent rigid locking to improve the bending resistance and service life of locking.
The advantages of the utility model:
1, structure is simple, easy to operate；
2, it can not only lock but also can be locking；
3, it can need to adjust the lower compressive load of running tool according to the operation at scene to adjust pretightning force size, to realize
The job requirements of different operating conditions.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of well head head rigid fastening devices, be mounted on that high-pressure well is oral and low pressure well it is oral between, which is characterized in that it is described
High-pressure well is oral and low pressure well it is oral between be equipped with shackle, the low pressure well is equipped with locking annular groove, the locking in word
Snap ring is locked in locking annular groove, the shackle and high-pressure well it is oral between be equipped with locking sleeve, under the locking sleeve
There is tapered slope at end, and the tapered slope is contacted with shackle, has longitudinal grooved on the downside of the locking sleeve, the longitudinal direction is opened
Slot is equipped with positioning bolt, and the shackle upper end is equipped with fixes sleeve, and the positioning bolt passes through longitudinal grooved and fixation
Sleeve connection, the fixes sleeve are connect with shackle, the locking sleeve and high-pressure well it is oral between be equipped with retaining ring, institute
It states and is equipped with the first locking screw on the inside of locking sleeve, be equipped with the second locking screw, first locking screw on the outside of the retaining ring
Line is mutually twisted with the second locking screw, and elastic ring is equipped on the inside of the retaining ring, and the retaining ring upper end is equipped with locking retaining ring,
The locking retaining ring is connect with retaining ring, is connect on the outside of the locking retaining ring with locking sleeve inside, on the inside of the locking retaining ring
With the oral connection of high-pressure well, the upper end of the locking retaining ring is equipped with positioning lock ring, the inside of the positioning lock ring and high-pressure well mouth
The connection of head outside, the positioning lock ring are equipped with fixing bolt, and the locking retaining ring is connected with positioning lock ring by fixing bolt
It is fixed.
2. a kind of well head head rigid fastening devices according to claim 1, which is characterized in that the shackle lower end is set
There is positioning pin, the positioning pin fixes shackle.
3. a kind of well head head rigid fastening devices according to claim 1, which is characterized in that the locking sleeve is cage
Structure.
4. a kind of well head head rigid fastening devices according to claim 1, which is characterized in that the retaining ring is opening
Ring.
5. a kind of well head head rigid fastening devices according to claim 1, which is characterized in that the elastic ring includes first
Elastic ring and the second elastic ring, first elastic ring and the second elastic ring are arranged at intervals on the medial surface of retaining ring.
6. a kind of well head head rigid fastening devices according to claim 1, which is characterized in that the locking annular groove is sawtooth
Shape, the shackle match with locking annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212413.2U CN209483278U (en) | 2018-12-26 | 2018-12-26 | A kind of well head head rigid fastening devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822212413.2U CN209483278U (en) | 2018-12-26 | 2018-12-26 | A kind of well head head rigid fastening devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483278U true CN209483278U (en) | 2019-10-11 |
Family
ID=68128593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822212413.2U Active CN209483278U (en) | 2018-12-26 | 2018-12-26 | A kind of well head head rigid fastening devices |
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| Country | Link |
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| CN (1) | CN209483278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233232A (en) * | 2021-12-06 | 2022-03-25 | 中海石油(中国)有限公司 | High-pressure wellhead based on self-elevating drilling platform operation and matched tool thereof |
-
2018
- 2018-12-26 CN CN201822212413.2U patent/CN209483278U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233232A (en) * | 2021-12-06 | 2022-03-25 | 中海石油(中国)有限公司 | High-pressure wellhead based on self-elevating drilling platform operation and matched tool thereof |
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