CN207131375U - A kind of splashproof joint - Google Patents
A kind of splashproof joint Download PDFInfo
- Publication number
- CN207131375U CN207131375U CN201721164628.0U CN201721164628U CN207131375U CN 207131375 U CN207131375 U CN 207131375U CN 201721164628 U CN201721164628 U CN 201721164628U CN 207131375 U CN207131375 U CN 207131375U
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- CN
- China
- Prior art keywords
- seal
- fluid course
- spring
- splashproof
- top connection
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- 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.)
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Abstract
The utility model discloses a kind of splashproof joint, including top connection, lower joint body, seal, seal bar and spring, top connection is fixedly connected with lower joint body, fluid course I is provided with top connection, fluid course II is provided with lower joint body, the side of fluid course II is provided with boss, side stream passages are formed between boss and fluid course II, boss is provided with stepped hole, seal bar is arranged in stepped hole, seal bar one end is provided with seal, spring is arranged in seal bar, spring one end is spacing by the step of stepped hole, the other end is spacing by seal, seal is sealed in the exit of fluid course I by spring crimping.The utility model structure novel and unique; advantages of simple; strengthen the security capabilities in drilling process; realize from sealing switch, solve the problem of live single splash drilling fluid of unloading, improve single efficiency of unloading; reduce the generation of drilling well underground engineering accident; easy to use, effect is good, is the innovation on splashproof joint.
Description
Technical field
The utility model belongs to petroleum drilling engineering technical field, relates in particular to a kind of splashproof joint.
Background technology
During wellbore construction, it is essential process that kelly bar, which is unloaded single, unload every time it is single before, one will be done
The action that the individual drilling fluid prevented in kelly bar sprays, have impact on rig floor environment and safety, and slow carry can only be used to allow drilling fluid to delay
Slug flow goes out or switched kelly cock to close fluid passage, after single connect, then kelly cock is opened, when such
Kelly bar can often occur not open and turn on pump in time, cause pump pressure rise damage equipment, it is desirable for this purpose that being taken over control under kelly bar
Splashing protection joint, but splashproof joint is excessively complicated at present, and service life is shorter, spring failure, is not risen when needing and closing
Effect, therefore, it is imperative that it improves and innovated.
The content of the invention
A kind of the shortcomings that the purpose of this utility model is to overcome in the prior art, there is provided splashproof joint.
To achieve the above object, the utility model uses following technical scheme：A kind of splashproof joint, including above connect
Head, lower joint body, seal, seal bar and spring, top connection are fixedly connected with lower joint body, and fluid course is provided with top connection
I, lower joint body is interior to be provided with fluid course II, and the side of fluid course II is provided with boss, side is formed between boss and fluid course II
Circulation road, boss are provided with stepped hole, and seal bar is arranged in stepped hole, and seal bar one end is provided with seal, and spring is arranged on
In seal bar, spring one end is spacing by the step of stepped hole, and the other end is spacing by seal, and seal is crimped by spring
It is sealed in the exit of fluid course I.
The exit of the fluid course I is provided with step, coordinates on step and is provided with wear ring.
The seal is crimped on wear ring.
The top connection and lower joint body are threadably secured connection, and top connection and lower joint body are all to be cylindric.
The seal bar is threadably secured with seal to be connected.
The seal towards one end of fluid course I be arrow shaped.
The utility model structure novel and unique, advantages of simple, strengthen the security capabilities in drilling process, realize from Fengkai
Close, solve the problem of live single splash drilling fluid of unloading, improve single efficiency of unloading, reduce drilling well underground engineering thing
Therefore generation, easy to use, effect is good, is the innovation on splashproof joint.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Splashproof joint as shown in Figure 1, including top connection 1, lower joint body 4, seal 11, seal bar 10 and spring
9, top connection 1 and lower joint body 4 are threadably secured connection, and top connection 1 and lower joint body 4 are all cylindric, are set in top connection 1
There is fluid course I 2, be provided with fluid course II 6 in lower joint body 4, the side of fluid course II 6 is provided with boss 7, boss 7 and liquid stream
Side stream passages 8 are formed between passage II 6, boss 7 is provided with stepped hole 5, and seal bar 10 is arranged in stepped hole 5, seal bar 10
One end is provided with seal 11, and seal bar 10 is threadably secured with seal 11 and is connected, and seal 11 is towards fluid course I 2
One end is arrow shaped, and spring 9 is arranged in seal bar 10, and the one end of spring 9 is spacing by the step of stepped hole 5, and the other end passes through
Seal 11 is spacing, and seal 11 crimps the exit for being sealed in fluid course I 2, the exit of fluid course I 2 by spring 9
Coordinate provided with step, on step and wear ring 3 is installed, seal 11 is crimped on wear ring 3.
In use, the top connection 1 of splashproof joint is connected with kelly bar, the lower joint body 4 of splashproof joint with
Well head drill string is connected, and after connecting, turn on pump circulating fluid, drilling fluid can flow through top connection 1 by kelly bar endoporus
Fluid course I 2, pushes seal 11, while lower pressing spring 9, and drilling fluid is further separated at seal 11 in lower joint body 4
Side stream passages 8, flowed out to from side stream passages 8 in drill string, when needing to make up a joint, stop the circulation of drilling fluid in drill string, will bore
Post is dismantled with splashproof joint lower joint body 4, and seal 11 is under spring force, is blocked together with wear ring 3
The passage of drilling fluid, the splash of drilling fluid is effectively prevent, after splashproof joint failure, can facilitate and be dismantled from kelly bar
Change one it is new, the drilling fluid splash of kelly bar lower end has been effectively ensured to rig floor, has preferably resolved and unloads in the past
The phenomenon of kelly bar splash, the security of rig floor operation is improved, it is easy to use, there is good social and economic benefit.
The above is only preferred embodiment of the present utility model, it is noted that for those skilled in the art,
Under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as this reality
With new protection domain.
Claims (6)
- A kind of 1. splashproof joint, it is characterised in that：Including top connection, lower joint body, seal, seal bar and spring, on Joint is fixedly connected with lower joint body, and fluid course I is provided with top connection, is provided with fluid course II in lower joint body, liquid stream is led to The side of road II is provided with boss, and side stream passages are formed between boss and fluid course II, and boss is provided with stepped hole, seal bar installation In stepped hole, seal bar one end is provided with seal, and spring is arranged in seal bar, and spring one end is limited by the step of stepped hole Position, the other end is spacing by seal, and seal is sealed in the exit of fluid course I by spring crimping.
- 2. splashproof joint according to claim 1, it is characterised in that：The exit of the fluid course I is provided with platform Rank, coordinate on step and wear ring is installed.
- 3. splashproof joint according to claim 2, it is characterised in that：The seal is crimped on wear ring.
- 4. splashproof joint according to claim 1, it is characterised in that：The top connection and lower joint body pass through screw thread It is fixedly connected, top connection and lower joint body are all to be cylindric.
- 5. splashproof joint according to claim 1, it is characterised in that：The seal bar is consolidated with seal by screw thread Fixed connection.
- 6. splashproof joint according to claim 1, it is characterised in that：The seal towards fluid course I one Hold as arrow shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721164628.0U CN207131375U (en) | 2017-09-12 | 2017-09-12 | A kind of splashproof joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721164628.0U CN207131375U (en) | 2017-09-12 | 2017-09-12 | A kind of splashproof joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131375U true CN207131375U (en) | 2018-03-23 |
Family
ID=61638319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721164628.0U Active CN207131375U (en) | 2017-09-12 | 2017-09-12 | A kind of splashproof joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131375U (en) |
-
2017
- 2017-09-12 CN CN201721164628.0U patent/CN207131375U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |