CN207999226U - A kind of damping centralizer dropping frictional resistance - Google Patents
A kind of damping centralizer dropping frictional resistance Download PDFInfo
- Publication number
- CN207999226U CN207999226U CN201820452575.0U CN201820452575U CN207999226U CN 207999226 U CN207999226 U CN 207999226U CN 201820452575 U CN201820452575 U CN 201820452575U CN 207999226 U CN207999226 U CN 207999226U
- Authority
- CN
- China
- Prior art keywords
- centralizer
- resistance
- strengthening tablets
- tubing string
- frictional resistance
- 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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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of damping centralizer dropping frictional resistance, more particularly to the centralizer used during oil-field flooding gas injection development, the device includes the body resistance-strengthening tablets (3) installed on centralizer body (2) and ontology, it is designed with top connection (1) on the centralizer body (2), lower contact (5), intercommunicating pore (7), righting ball (4) is installed on the body resistance-strengthening tablets (3), body resistance-strengthening tablets (3) are connect by spring (6) with centralizer body (2), the centralizer body (2), body resistance-strengthening tablets (3), spring (6), intercommunicating pore (7) constitutes a compressible damping trough communicated with central through hole.The utility model can effectively reduce in water filling gas injection process while meeting tubing string centralizer to be shaken caused by tubing string, has been reduced the axial frictional resistance with circumferential direction during lower tubular column, has been played the role of that tubing string is protected to improve construction efficiency.
Description
Technical field
The utility model is related to oil-field flooding gas injection development fields, more particularly to are a kind of damping rightings for dropping frictional resistance
Device.
Background technology
During oil-field flooding gas injection development, with the increase of injection fluid displacement and injection pressure, tubing string will occur
Strong vibrations.The centralizer used when the water filling gas injection construction operation of routine does not have the effect of damping so that when construction, pipe
Sharp pounding occurs for column, and tubing string and its construction equipment directly collide with the borehole wall, substantially reduces making for tubing string and construction equipment
With the service life, construction safety cannot be guaranteed, and tubing string has larger frictional resistance during tripping in, be unfavorable for rising for tubing string
Under smooth construction.Therefore, a kind of development and Application of the novel damping centralizer for dropping frictional resistance just very it is necessary to.
Utility model content
The purpose of this utility model is to provide a kind of damping centralizers dropping frictional resistance, and the arrangement achieves pass through righting
Ball reduces the axial frictional resistance with circumferential direction during tubing string removes, and cutting down the tubing string in work progress by spring shakes,
And it is utilized by the Telescopic shock-absorption slot being connected with central through hole that body resistance-strengthening tablets, spring, centralizer body, intercommunicating pore are constituted
Gas-liquid fluid has compressible characteristic, can play the role of reducing tubing string in water filling gas injection process and generate vibrations.
Technical solution adopted in the utility model is:A kind of damping centralizer dropping frictional resistance, including centralizer body
2, top connection 1, lower contact 5, intercommunicating pore 7, body resistance-strengthening tablets 3, righting ball 4 and spring 6.Centralizer passes through 1 lower contact 5 of top connection and pipe
Column connects, and body resistance-strengthening tablets 3 are connected by spring 6 with centralizer body 2, each piece of body resistance-strengthening tablets 3 and centralizer body 2, spring 6 with
And intercommunicating pore 7 forms a Telescopic shock-absorption slot being connected with central through hole, the damping trough can be flowed with being injected in tubing string
Body pressure and changes in flow rate and telescopic deformation, there are two righting ball 4, the quantity of the body resistance-strengthening tablets 3 for installation on each piece of body resistance-strengthening tablets 3
It is 6.
The utility model has the beneficial effects that:The utility model has cut down axial during lower tubular column and week by righting ball
To frictional resistance be conducive to tubing string smoothly remove, be made of body resistance-strengthening tablets, centralizer body, intercommunicating pore, spring scalable
Damping trough and using gas-liquid fluid have compressible characteristic make the damping trough can be with the variation of pressure in tubing string
And flexible adjustment, the impact force that tubing string generates when can reduce fluid injection protect tubing string and construction to set to achieve the purpose that damping
It is standby, extend the service life of tool.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model
Fig. 2 is the sectional view of the utility model
In Fig. 1, Fig. 2,1, top connection;2, centralizer body;3, body resistance-strengthening tablets;4, righting ball;5, lower contact;6, spring;7,
Intercommunicating pore.
Specific implementation mode
As shown in Figure 1 and Figure 2, a kind of damping centralizer dropping frictional resistance, the device include centralizer body 2, and design exists
Top connection 1, lower contact 5 on centralizer body 2 and intercommunicating pore 7 are equipped with body resistance-strengthening tablets 3 on ontology, and body resistance-strengthening tablets pass through spring 6
It is connected with ontology, the spring 6 can cut down the impact force that tubing string vibrations generate, and the quantity of the body resistance-strengthening tablets 3 is six, righting
There are two righting balls 4 on piece installation, and righting ball is contacted with the borehole wall converts sliding friction to rolling friction, are playing lower tubular column process
Middle reduction is axial and circumferential direction frictional resistance, the body resistance-strengthening tablets 3, spring 6, intercommunicating pore 7 and centralizer body 2 form one and center
The Telescopic shock-absorption slot that through-hole communicates, when the discharge capacity, pressure of water filling gas injection in tubing string increase, tubing string will produce sharp pounding,
Injection fluid can be transmitted to damping trough by intercommunicating pore 7 at this time so that body resistance-strengthening tablets 3 prop up righting ball 4 and abut the borehole wall outward, play
Stablize the effect of tubing string, while there is the speciality of compressibility using gas-liquid fluid, injection fluid can buffer one in damping trough
Tubing string vibrations caused by partial pressure wave.Whole device cuts down the frictional resistance during tubing string removes using the characteristic of righting ball,
The characteristic that can be shunk using the retractility damping trough and gas-liquid fluid of spring, to can reach the mesh of drop frictional resistance and damping
's.
It is understood that the description above with respect to the utility model is merely to illustrate the utility model and is not limited to
Technical solution described in the utility model embodiment, it is made within the spirit and principle of the present invention any to repair
Change, equivalent replacement and improvement etc., should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of damping centralizer dropping frictional resistance, by top connection (1), centralizer body (2), body resistance-strengthening tablets (3), righting ball (4),
Lower contact (5), spring (6), intercommunicating pore (7) are constituted, it is characterised in that:The centralizer body (2) circumferentially upper uniformly installation
There are six pieces of body resistance-strengthening tablets (3), the body resistance-strengthening tablets (3) to be connected with centralizer body (2) by spring (6), on the body resistance-strengthening tablets (3)
Installation is designed with intercommunicating pore (7) there are two righting ball (4) on the centralizer body (2).
2. a kind of damping centralizer dropping frictional resistance according to claim 1, it is characterised in that:The centralizer body
(2), body resistance-strengthening tablets (3), spring (6), intercommunicating pore (7) form a Telescopic shock-absorption slot being connected with central through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820452575.0U CN207999226U (en) | 2018-04-02 | 2018-04-02 | A kind of damping centralizer dropping frictional resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820452575.0U CN207999226U (en) | 2018-04-02 | 2018-04-02 | A kind of damping centralizer dropping frictional resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207999226U true CN207999226U (en) | 2018-10-23 |
Family
ID=63839277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820452575.0U Expired - Fee Related CN207999226U (en) | 2018-04-02 | 2018-04-02 | A kind of damping centralizer dropping frictional resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207999226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031674A (en) * | 2019-06-03 | 2020-12-04 | 中国石油天然气股份有限公司 | Device for automatically adjusting friction force of drill column in underground well |
-
2018
- 2018-04-02 CN CN201820452575.0U patent/CN207999226U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031674A (en) * | 2019-06-03 | 2020-12-04 | 中国石油天然气股份有限公司 | Device for automatically adjusting friction force of drill column in underground well |
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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: 20181023 Termination date: 20190402 |