CN206617128U - A kind of plug - Google Patents
A kind of plug Download PDFInfo
- Publication number
- CN206617128U CN206617128U CN201720140267.XU CN201720140267U CN206617128U CN 206617128 U CN206617128 U CN 206617128U CN 201720140267 U CN201720140267 U CN 201720140267U CN 206617128 U CN206617128 U CN 206617128U
- Authority
- CN
- China
- Prior art keywords
- plug
- pressure release
- release passage
- plug body
- discharge opeing
- 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
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Abstract
The utility model is related to a kind of plug, including the plug body for spinning on tail pipe bottom, plug body is provided with the pressure release passage from its upper surface insertion to its side, be additionally provided with the plug that the outlet and control discharge opeing duct for closure pressure release passage being installed with by screw thread in connection pressure release passage and the discharge opeing duct of plug body exterior, pressure release passage are opened and closed on plug body.Using plug of the present utility model, by setting pressure release passage on plug, pressure release passage bifurcated goes out the discharge opeing duct of bypass, and threadedly plug of the spinning on pressure release passage realizes the closure exported to pressure release passage and the keying in control discharge opeing duct, so as to realize the pressure release to tail pipe inner fluid, plug is set integrally not influenceed by tail pipe inner fluid pressure when being screwed off from tail pipe, it is to avoid plug occur and fall the problem of causing environmental pollution with fluid splash.
Description
Technical field
The utility model is related to oil-pumping equipment in oil field part field, and in particular to a kind of plug.
Background technology
To ensure that oil-water well is normally produced, plug is mounted on the tail pipe of flow string.Existing plug is solid
Structure, tail pipe end is external screw thread, the section hoop that two ends are internal thread is installed with above, plug passes through its external screw thread when mounted
It is rotated on section hoop.Oil-water well downhole production tubing string operation completes and rises out rear, it is necessary to dismantle the plug on flow string tail pipe,
And discharge the liquid in tail pipe.If dismantle plug on well head, fluid pressure and plug dead weight in tail pipe
Under effect, the moment that plug is outwarded winding from tail pipe can have a downward momentum, and plug is difficult to control under the influence of momentum,
Easily occur plug and fall situation about falling, or even fall directly into well；If when dismantling plug outside well head, due to tail intraluminal fluid
The effect of body pressure, when the moment for outwarding winding plug, the liquid of high pressure will be spouting from the small gap outwarded winding, and meeting splash is arrived
On the body of well site and operating personnel, not only the person is damaged, surrounding enviroment can be also polluted.
In addition, before the downhole tool such as packer, injection well downhole flow regulator enters before site operation, need to be examined to the performance of its product
Test, inspection tubing string is needed to use during inspection, be also required to that plug is installed on the tail pipe for examining tubing string, inspected on dismounting tail pipe
During plug the problem of environmental pollution and plug fall is caused there is also above-mentioned fluid splash.
Utility model content
The purpose of this utility model is to provide a kind of plug, to solve flow string and the silk on the tail pipe for examining tubing string
It is easily caused that plug falls and fluid splash causes the technical problem of environmental pollution during stifled dismounting.
To achieve the above object, the technical scheme of the utility model plug is：A kind of plug, including for spinning in tail pipe
Plug body on bottom, plug body is provided with the pressure release passage from its upper surface insertion to its side, plug body
It is additionally provided with the discharge opeing duct of connection pressure release passage and plug body exterior, pressure release passage and closure pressure release is installed with by screw thread leads to
The plug that the outlet and control discharge opeing duct in road are opened and closed.Using plug of the present utility model, by setting pressure release on plug
Passage, pressure release passage bifurcated goes out the discharge opeing duct of bypass, and threadedly plug realization pair of the spinning on pressure release passage
The closure of pressure release passage outlet and the keying in control discharge opeing duct, so as to realize the pressure release to tail pipe inner fluid, make plug whole
Body will not be influenceed when being screwed off from tail pipe by tail pipe inner fluid pressure, it is to avoid plug occur and fall to cause environment with fluid splash
The problem of pollution.
Further, it is arranged with the sealing ring of the gap sealing between plug periphery and pressure release passage on the plug.
Sealing is realized by way of sealing ring is set in plug periphery, sealing ring is sealed by the mode of crimp, sealing effectiveness
Good, sealing ring is Seals, and cheap, acquisition is convenient.
Further, the plug body is provided with the internal thread for being used for coordinating with the external screw thread of tail pipe.Plug body leads to
Its internal thread rotation is crossed outside the tail pipe, the part that plug body exposes is longer, can facilitate the dismounting of plug, at the same can directly with
The existing external screw thread of tail pipe is adapted, without the connection member such as connection section hoop between tail pipe and plug.
Further, the diameter parallel of the axis in the discharge opeing duct and the plug body, and the outlet in discharge opeing duct
Deviate the position of end face center positioned at the lower end of plug body.Discharge opeing duct is set straight down, and not only discharge opeing is convenient, Er Qieke
So that the high-voltage oil liquid discharged from discharge opeing duct is directly discharged into oil well, safety and environmental protection.
Further, the pressure release passage includes the first half and axis and plug that axis is overlapped with plug body axis
The vertical lower half of body axis, the first half has funnelform section of confluxing.The first half of pressure release passage is to be vertically arranged,
Set funnelform section of confluxing to facilitate flowing down for tail pipe inner fluid thereon, make fluid row's more thorough, cleaner, it is to avoid to have residual
Fluid is stayed to cause environmental pollution.
Further, the lower half is the small stepped hole of outside large inner, the outer portion part of stepped hole and the plug spiral shell
Line coordinates.
Further, one section corresponding with the inner section of the stepped hole of the plug is smooth periphery, periphery
Provided with the annular groove for installing the sealing ring.
Brief description of the drawings
Fig. 1 is the specific embodiment structural representation of the utility model plug；
In figure：1- plug bodies, 11- internal threads, the 12- pressure release passage first halves, 121- confluxes section, under 13- pressure release passages
Half portion, 14- discharge opeings duct, 2- plugs, 3- sealing rings.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of plug of the present utility model：Embodiment 1：As shown in figure 1, including plug body 1 and from plug
The upper surface of body 1 is by the pressure release passage of the internal run-through of plug body 1 to the side exit of plug body 1, pressure release passage also side
At one discharge opeing duct 14 of pass-out, pressure release passage side exit by screw thread spinning in pressure release passage a plug 2, plug 2
Upper to have sealing ring 3, plug 2 can realize the closure exported to pressure release passage and the keying in controllable discharge opeing duct 14.
Plug body 1 is to be drilled with deep hole, deep hole to have internal thread 11 and escape on cylinder, upper surface, internal thread
11 are used to coordinate with the external screw thread of flow string or the tail pipe for examining tubing string, realize the connection of plug and tail pipe.On plug body 1
The bottom of deep hole bottom escape with internal thread 11 is connected to funnelform section 121 of confluxing, so that fluid outflow is more thorough.
The axis of deep hole, escape and the axis for section 121 of confluxing with plug body 1 is overlapped, to facilitate processing, deep hole, escape with
And section 121 of confluxing collectively forms the pressure release passage first half 12.
Pressure release passage lower half 13 is the axis radial direction ladder cylindrical hole vertical with the axis of plug body 1, its inner end
Connected with the bottom for section 121 of confluxing.13 points of pressure release passage lower half is two sections, and in step-like, and larger one section of external diameter is located at
Side away from plug axis, i.e. outer portion part, and with internal thread, for the cooperation of the external screw thread of plug 2, other end diameter compared with
Small, i.e. inner section is unthreaded hole, unthreaded hole is provided with the annular groove for installing sealing ring.
One section of extraction of the less unthreaded hole of diameter of discharge opeing duct 14 from pressure release passage lower half 13, i.e. discharge opeing duct 14
Entrance is located on one section of the unthreaded hole of pressure release passage lower half 13, and the axis and the diameter parallel of plug body 1 in discharge opeing duct 14,
And there is certain distance, i.e. discharge opeing duct 14 eccentric setting on plug body 1 between both axis.
The plug of the present embodiment is when in use：The plug 2 for installing rubber ring is being tightened in pressure release passage lower half first
13, it is ensured that excretion duct is blocked, plug body 1 is then screwed in work string by its internal thread 11 or tubing string tail is examined
The tail pipe of bottom of the tube, work string and experiment tubing string can normal work or experiment, wait after the completion of testing, it is necessary to by plug
Removed from tail pipe, now the direction that plug 2 exits pressure release passage is reversely screwed out by screwing plug 2 first, but can not
Plug 2 is screwed out completely from pressure release passage, need to only screw to discharge opeing duct 14 and be connected with pressure release passage, it is ensured that internal fluid can
To be flowed out from discharge opeing duct 14.After being fully drained Deng the fluid in tail pipe and pressure release passage, you can safe by plug
Screwed off from tail pipe, complete the dismounting of plug.
Embodiment 2：It is with the difference of embodiment 1：Provided with one section of tapered channel in pressure release passage lower half 13, taper is led to
The opening in road is towards the outlet of pressure release passage lower half 13, and the inner of plug 2 is the plugging structure of taper, can lead in insertion taper
By passage plugging during road, tapered channel is opened when away from tapered channel, pressure release passage is connected with discharge opeing duct 14.
The present embodiment and the closure principle difference of embodiment 1 are that the present embodiment is the envelope by the inner end taper of plug 2
The cone match of bridging structure and tapered channel realizes sealing with opening.
Embodiment 3：It is with the difference of embodiment 1：Its discharge opeing duct 14 is coaxially disposed with pressure release passage lower half 13, i.e.,
The outlet of the outlet in discharge opeing duct and pressure release passage lower half 13 is located on the same diameter of section of plug body 1, is set on plug 2
The valve flap structure of guiding valve is put, discharge opeing duct 14 can be blocked or open when being slided along pressure release passage.
Embodiment 4：It is with the difference of embodiment 1：Its discharge opeing duct lower half is T-shaped, and the outlet of T-shaped passage is set
In the bottom of plug body 1, discharge opeing duct and vertical one section of T-shaped passage are arranged side by side, and top and the T-shaped passage in discharge opeing duct
Plug 2 is set in the passage connection of left end, the vertical section of T-shaped passage, and the end of plug 2 is discoideus flashboard, for blocking
Or open the horizontal segment of T-shaped passage and the connection or closing in discharge opeing duct.
In other embodiments, when the tail pipe that plug is blocked is for female thread structure or by connecting section hoop deutomerite hoop
When bottom is female thread structure, the internal thread 11 of plug body 1 can be replaced with external screw thread, now the pressure release passage first half 12
For unthreaded hole, escape is no longer set.
In other embodiments, funnelform section 121 of confluxing could alternatively be the shapes such as stepped or arc.
In other embodiments, the sealing means between plug 2 and pressure release duct are also not only sealing ring 3, can also be replaced
It is changed to the mode of packing seal.
Claims (7)
1. a kind of plug, it is characterised in that：Including the plug body for spinning on tail pipe bottom, plug body is provided with certainly
Connection pressure release passage and plug body exterior are additionally provided with pressure release passage on its upper surface insertion to its side, plug body
It is stifled that the outlet and control discharge opeing duct for being installed with closure pressure release passage by screw thread in discharge opeing duct, pressure release passage are opened and closed
Head.
2. plug according to claim 1, it is characterised in that：It is arranged with plug periphery and pressure release passage on the plug
Between gap sealing sealing ring.
3. plug according to claim 1 or 2, it is characterised in that：The plug body is provided with for outer with tail pipe
The internal thread that screw thread coordinates.
4. plug according to claim 1 or 2, it is characterised in that：The axis in the discharge opeing duct and the plug body
Diameter parallel, and discharge opeing duct outlet positioned at plug body lower end deviate end face center position.
5. plug according to claim 2, it is characterised in that：The pressure release passage includes axis and plug body axis weight
The first half and axis of the conjunction lower half vertical with plug body axis, the first half have funnelform section of confluxing.
6. plug according to claim 5, it is characterised in that：The lower half is the small stepped hole of outside large inner, platform
The outer portion part in rank hole coordinates with the plug screw thread.
7. plug according to claim 6, it is characterised in that：The plug corresponding with the inner section of the stepped hole one
Section is smooth periphery, and periphery is provided with the annular groove for installing the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140267.XU CN206617128U (en) | 2017-02-16 | 2017-02-16 | A kind of plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140267.XU CN206617128U (en) | 2017-02-16 | 2017-02-16 | A kind of plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617128U true CN206617128U (en) | 2017-11-07 |
Family
ID=60230878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720140267.XU Expired - Fee Related CN206617128U (en) | 2017-02-16 | 2017-02-16 | A kind of plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817079A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of LWD tightness measuring devices suppressed automatically |
-
2017
- 2017-02-16 CN CN201720140267.XU patent/CN206617128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817079A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of LWD tightness measuring devices suppressed automatically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171107 Termination date: 20210216 |