CN208502720U - A kind of hinge type casing head for spiral-lock preventer group - Google Patents
A kind of hinge type casing head for spiral-lock preventer group Download PDFInfo
- Publication number
- CN208502720U CN208502720U CN201820868289.2U CN201820868289U CN208502720U CN 208502720 U CN208502720 U CN 208502720U CN 201820868289 U CN201820868289 U CN 201820868289U CN 208502720 U CN208502720 U CN 208502720U
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- China
- Prior art keywords
- card body
- casing head
- preventer
- spiral
- lower card
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Abstract
The utility model discloses a kind of hinge type casing heads for spiral-lock preventer group, including preventer and with the casing head of end flanges, it is additionally provided with card body and lower card body, the bottom of the preventer is connected with flange spool by screw bolt and nut, the flange spool bottom is connect by limited block and hold-down bolt with upper card body, and the upper card body connect with lower card body by shaft and split pin and is formed with linkage；The upper card body and lower card body are made of the left slips and right slips of two semicirculars, semicircle connecting plate is relatively symmetrically equipped on the left slips and right slips of the lower card body, the connecting plate is equipped with connecting hole, and the lower card body is connected by the end flanges of the connecting hole and casing head.The utility model hinge type casing head can be fixed and be oriented to preventer group, make preventer under powerful fluid impact, still without departing from well head center, the final success for realizing spiral-lock preventer group job.
Description
Technical field
The utility model relates to oilfield prospecting developing operation well control jury rigs and technical field more particularly to a kind of use
In the hinge type casing head of spiral-lock preventer group.
Background technique
When gas blowout accident occurring when well head is without preventer group, quick spiral-lock preventer group and implement to close on well head
Well is the effective settling mode for controlling blowout.During spiral-lock preventer group, well head ejecting fluid is acted in strata pressure
Under, with very high speed constant impingement preventer group, lead to waving, shaking for preventer group, deviates well head center, restrict
The centering of preventer group bottom flange and well head end flanges, is related to the success or failure of spiral-lock operation.
Therefore, it needs to design a kind of hinge type casing head, using its lower card body and well head end flanges pre-connection, provides and hold
Force, casing head top flange and preventer group pre-connection, overturning and fixed work under the draw of steel wire, using hinge
With, the lateral oscillation of preventer can be effectively avoided, guarantees it in powerful fluid impact, still without departing from well head center,
The final success for realizing spiral-lock preventer group job.
Utility model content
The purpose of this utility model is to overcome deficiency in the prior art, provide a kind of for spiral-lock preventer group
Hinge type casing head, the hinge type casing head can be fixed and be oriented to preventer group, make preventer in powerful fluid
Under impact, still without departing from well head center, the final success for realizing spiral-lock preventer group job.
The purpose of this utility model is achieved through the following technical solutions:
A kind of hinge type casing head for spiral-lock preventer group, including preventer and with the casing head of end flanges,
It is additionally provided with card body and lower card body, the bottom of the preventer is connected with flange spool, the flange by screw bolt and nut
Pipe nipple bottom is connect by limited block and hold-down bolt with upper card body, and the upper card body is connected by shaft and split pin and lower card body
It connects and is formed with linkage；The upper card body and lower card body are made of the left slips and right slips of two semicirculars, described
Semicircle connecting plate is relatively symmetrically equipped on the left slips and right slips of lower card body, the connecting plate is equipped with connecting hole, described
Lower card body is connected by the end flanges of the connecting hole and casing head.
The left and right sides of the lower card body also passes through limited block and hold-down bolt and the end flanges of casing head connect.
The steel ring for sealing is additionally provided between the upper card body and lower card body.
The upper card body can complete 0 ° -270 ° of folding rotation around shaft.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is:
1. the linkage that the utility model is made up of upper and lower card body efficiently solves blowout spiral-lock preventer group
In the process, the shaking of preventer is waved, and guarantees it under powerful blowout fluid impact, still without departing from well head center, final reality
The success of existing spiral-lock preventer group job.
2. the utility model, can be from different sizes by replacing various sizes of card body, pin shaft and flange spool, difference pressure
The preventer of power rank is mating, there is stronger applicability and versatility at the scene.
3. the upper and lower card body of the utility model be half-ring design, both can loss of weight, facilitate installation, and can be according to operation
The Ground arrangement at scene, wind direction, the restraining factors such as flame direction, there is stronger applicability in 360 ° of adjusting spiral-lock directions at the scene.
4. the utility model is structurally reasonable, ingenious in design, easy to operate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2-1 and Fig. 2-2 is the structural schematic diagram of upper card body.
Fig. 3-1 and Fig. 3-2 is the structural schematic diagram of lower card body.
Appended drawing reference: 1- preventer, 2- bolt, 3- nut, 4- flange spool, 5- flange spool fastening bolt, 6- steel ring,
The upper card body of 7-, card body under 8-, 9- split pin, 10- shaft, 11- casing head, the left slips of 70-, the right slips of 71-, 72- limited block,
73- hold-down bolt, the left slips of 80-, the right slips of 81-, 82- limited block, 83- hold-down bolt, 84- connecting plate, 85- connecting hole
Specific embodiment
The utility model will be further described with reference to the accompanying drawing.
As shown in Fig. 1 to Fig. 3-2, the utility model provides a kind of hinge type casing head for spiral-lock preventer group, packet
Preventer 1 and the casing head 11 with end flanges are included, card body 7 and lower card body 8 are additionally provided with, the bottom of preventer 1 passes through
Bolt 2 and nut 3 are connected with flange spool 4, and 4 bottom of flange spool is connected by limited block 72 and hold-down bolt 73 and upper card body 7
It connects, upper card body 7 connect with lower card body 8 by shaft 10 and split pin 9 and is formed with linkage；Upper card body 7 is by two semi-rings
The left slips 70 and right slips 71 of shape form, and lower card body 8 is made of the left slips 80 and right slips 81 of two semicirculars, lower card body
Semicircle connecting plate 84 is relatively symmetrically equipped on 8 left slips 80 and right slips 81, connecting plate 84 is equipped with connecting hole 85, lower card
Body 8 is connect by connecting hole 85 with the end flanges of casing head 11；Furthermore the left and right sides of card body 8 is descended also to pass through 82 He of limited block
Hold-down bolt 83 is connect with the end flanges of casing head 11.And it is formed by fixed steel ring 6 and flange spool fastening bolt 5 close
Envelope connection.
The material of upper card body 7 and lower card body 8 is No. 45 steel in the present embodiment, and 10 material of shaft is 42CrMo, flange spool 4
Material is 35CrMo.Upper card body 7 and flange spool 4 can complete 0 ° -270 ° of folding rotation around shaft 10.
The specific implementation step of the utility model is as follows:
Firstly, 4 bottom flange of flange spool is flat on plank by operator upwards, by the left and right slips of upper card body and limit
Block downward, is placed on the flange of flange pup joint bottom, puts on hold-down bolt, tighten limited block and hold-down bolt, fixing can fix
Steel ring；Then, by flange spool together with preventer bolt fastening；Then, upward by the left and right slips of lower card body, place
On casing head end flanges, hold-down bolt is put on, tightens limited block and hold-down bolt；Finally, cooperate guiding steel wire with crane,
By the bolt hole centering of upper and lower card body, shaft is put on, split pin is accomplished fluently, under the cooperation of crane and guiding steel wire, completes overturning
And spiral-lock operation.
The utility model is not limited to embodiments described above.Above the description of specific embodiment is intended to describe
With illustrate the technical solution of the utility model, the above mentioned embodiment is only schematical, is not restrictive.?
In the case of not departing from the utility model aims and scope of the claimed protection, those skilled in the art are practical at this
The specific transformation of many forms can be also made under novel enlightenment, these are belonged within the protection scope of the utility model.
Claims (4)
1. a kind of hinge type casing head for spiral-lock preventer group, including preventer and with the casing head of end flanges,
It is characterized in that, be provided with card body and lower card body, the bottom of the preventer is connected with flange spool by screw bolt and nut, institute
It states flange spool bottom to connect by limited block and hold-down bolt with upper card body, the upper card body is by shaft and split pin under
Card body connects and is formed with linkage；The left slips and right slips group of the upper card body and lower card body by two semicirculars
At relatively symmetrically equipped with semicircle connecting plate on the left slips and right slips of the lower card body, the connecting plate is equipped with connection
Hole, the lower card body are connected by the end flanges of the connecting hole and casing head.
2. a kind of hinge type casing head for spiral-lock preventer group according to claim 1, which is characterized in that the lower card
The left and right sides of body also passes through limited block and hold-down bolt and the end flanges of casing head connect.
3. a kind of hinge type casing head for spiral-lock preventer group according to claim 1, which is characterized in that the upper card
The steel ring for sealing is additionally provided between body and lower card body.
4. a kind of hinge type casing head for spiral-lock preventer group according to claim 1, which is characterized in that the upper card
Body can complete 0 ° -270 ° of folding rotation around shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820868289.2U CN208502720U (en) | 2018-06-06 | 2018-06-06 | A kind of hinge type casing head for spiral-lock preventer group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820868289.2U CN208502720U (en) | 2018-06-06 | 2018-06-06 | A kind of hinge type casing head for spiral-lock preventer group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208502720U true CN208502720U (en) | 2019-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820868289.2U Active CN208502720U (en) | 2018-06-06 | 2018-06-06 | A kind of hinge type casing head for spiral-lock preventer group |
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| CN (1) | CN208502720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577191A (en) * | 2019-02-18 | 2020-08-25 | 中海油能源发展股份有限公司 | Method for mounting hinge type casing head |
-
2018
- 2018-06-06 CN CN201820868289.2U patent/CN208502720U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577191A (en) * | 2019-02-18 | 2020-08-25 | 中海油能源发展股份有限公司 | Method for mounting hinge type casing head |
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