CN214787236U - High-temperature rubber wing-shaped centralizer - Google Patents
High-temperature rubber wing-shaped centralizer Download PDFInfo
- Publication number
- CN214787236U CN214787236U CN202120694556.0U CN202120694556U CN214787236U CN 214787236 U CN214787236 U CN 214787236U CN 202120694556 U CN202120694556 U CN 202120694556U CN 214787236 U CN214787236 U CN 214787236U
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- China
- Prior art keywords
- wing
- centralizer
- metal base
- metal
- rubber layer
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- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 45
- 238000005553 drilling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a wing centralizer of high temperature rubber, including righting wing and metal base, set up threaded hole on the metal base, the metal base top is equipped with the rubber layer, the both ends of metal base are equipped with the bonding groove, the metal base both ends are equipped with first water conservancy diversion head, the both ends of righting the wing are equipped with second water conservancy diversion head. The bonding groove and the sunken bonding surface can improve the bonding area and strength of the metal seat and the rubber layer, the flow guide inclined plane of the metal seat and the second flow guide head of the centralizing wing enable slurry to pass through more smoothly, and compared with a pure metal centralizer, the width and the height of the inner diameter, the outer diameter and the rubber layer of the metal seat and instruments with different diameters and different well logging methods can be adjusted, so that the proper centralizing, damping and insulating effects are achieved.
Description
Technical Field
The utility model belongs to the technical field of logging instrument, concretely relates to wing centralizer of high temperature rubber.
Background
Centralizers are commonly used as accessories for logging instruments and are generally made of metal (springs), rubber or other wear-resistant materials. When in use, the flexible pipe is connected with the shell of the instrument by threads, screws, hose clamps or the like, so that the instrument keeps a logging position, reduces vibration of the instrument or keeps insulation with other parts and the like. In the logging-while-drilling operation, because the logging instrument needs long-time downhole work, the instrument string is connected to the drill rod or arranged in the drill rod, and the centrifugal force, vibration and mud impact force applied to the instrument string is several times to dozens of times larger than that of the ordinary cable logging or ejection logging. Therefore, the centralizer suitable for common cable logging cannot be directly used for a logging-while-drilling instrument in structure and assembly mode, can be damaged or fall off in the process of going down and going up, and cannot meet the requirement of logging-while-drilling.
In the common rubber centralizer, a pure rubber centralizer is arranged on the excircle of an instrument and is fastened by a hose clamp, but the connection mode is not firm, the strength of a rubber body is low, and deformation can be generated under the conditions of larger vibration and impact force. When the obstruction is serious, the rubber is damaged or falls off, or the hose clamp is broken, the centralizer falls off, and the logging state of the instrument is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem, provide a wing centralizer of high temperature rubber, adopted the metal base to at its salient screw hole of having processed, can guarantee its mounted position under the condition of long-time vibrations on the shell of logging while drilling instrument or centralizer nipple joint with jackscrew or screw fastening.
In order to achieve the above object, the utility model provides a following technical scheme: the high-temperature rubber wing-shaped centralizer comprises a centralizing wing and a metal seat, wherein a threaded hole is formed in the metal seat, a rubber layer is arranged above the metal seat, bonding grooves are formed in two ends of the metal seat, first flow guide heads are arranged at two ends of the metal seat, and second flow guide heads are arranged at two ends of the centralizing wing.
Further: the metal seat is fastened on a shell or a short knot of a centralizing wing of the logging-while-drilling instrument through a threaded hole by a jackscrew or a screw;
further: the number, the width and the thickness of the rubber layer of the righting wing can be adjusted;
further: the number of the righting wings can be three wings, four wings or six wings;
further: the inner diameter and the outer diameter of the centralizer can be adjusted according to the outer diameter of a logging instrument and the inner diameter of a shell where the logging instrument is located.
Compared with the prior art, the beneficial effects of the utility model reside in that:
a high-temperature rubber wing-shaped centralizer adopts a metal seat, a threaded hole is formed in the metal seat, a jackscrew or a screw can be fastened on a shell or a centralizer short section of a logging-while-drilling instrument, the assembly position of the centralizer can be guaranteed under the condition of long-time vibration, a high-temperature-resistant and wear-resistant rubber layer is pressed above the metal seat, the position (centered or eccentric) of the logging instrument can be guaranteed, and meanwhile vibration borne by the instrument can be reduced and the centralizer can be insulated from metal objects such as a drill rod, a drill lifter or a protective cylinder. The flow guide head can reduce the resistance of slurry, the bonding area and the strength of the metal seat and the rubber layer can be improved by the bonding groove and the sunken bonding surface, the flow guide inclined surface of the metal seat and the second flow guide head of the righting wing enable the slurry to pass through more smoothly, and compared with a pure metal centralizer, the flow guide centralizer can adjust the inner diameter and the outer diameter of the metal seat and the width and the height of the rubber layer for instruments with different diameters and different well logging methods so as to achieve the effects of proper righting, shock absorption and insulation.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required to be used in the description of the embodiment will be briefly introduced below, it is obvious that the drawings in the following description are only for more clearly illustrating the embodiment of the present invention or the technical solution in the prior art, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 according to the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 according to the present invention;
in the figure: 1. righting wing, 2, metal base, 3, rubber layer, 4, first water conservancy diversion head, 5, screw hole, 6, bonding groove, 7, second water conservancy diversion head.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described with reference to the following specific embodiments, which are provided as illustration only and are not intended to limit the present invention.
The high-temperature rubber wing-shaped centralizer shown in fig. 1-3 comprises a centralizing wing 1 and a metal seat 2, wherein a threaded hole 5 is formed in the metal seat 2, a rubber layer 3 is arranged above the metal seat 2, bonding grooves 6 are formed in two ends of the metal seat 2, first flow guide heads 4 are arranged at two ends of the metal seat 2, and second flow guide heads 7 are arranged at two ends of the centralizing wing 1.
The metal seat 2 is fastened on a casing of the logging-while-drilling instrument or a short knot of the centralizing wing 1 through a threaded hole 5 by using jackscrews or screws;
the number and the width of the centralizing wings 1 and the thickness of the rubber layer 3 can be adjusted;
the number of the straightening wings 1 can be three wings, four wings or six wings;
the inner diameter and the outer diameter of the centralizer can be adjusted according to the outer diameter of a logging instrument and the inner diameter of a shell where the logging instrument is located.
The utility model relates to a wing centralizer of high temperature rubber, the metal base has been adopted, set up threaded hole on the metal base, with jackscrew or screw fastening on the shell of logging while drilling instrument or centralizer nipple joint, can guarantee its assembled position under the condition of long-time vibrations, the dismouting of being convenient for, the metal base top suppression has high temperature resistant wear-resisting rubber layer, can guarantee the position of logging instrument (placed in the middle or off-centre), can reduce the vibrations that the instrument received simultaneously, with the drilling rod, bore metal object such as very or a protection section of thick bamboo and insulate, get rid of it under the condition that the rubber layer damaged, then suppress new rubber layer again can. The bonding groove and the sunken bonding surface can improve the bonding area and strength of the metal seat and the rubber layer, the flow guide inclined plane of the metal seat and the second flow guide head of the centralizing wing enable slurry to pass through more smoothly, and the inner diameter, the outer diameter and the width and the height of the rubber layer of the metal seat can be adjusted for instruments with different diameters and different well logging methods, so that the proper centralizing, damping and insulating effects are achieved.
The present invention is not described in detail in the prior art.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a high temperature rubber wing centralizer, includes righting wing (1) and metal base (2), its characterized in that: threaded holes (5) are formed in the metal base (2), a rubber layer (3) is arranged above the metal base (2), bonding grooves (6) are formed in two ends of the metal base (2), first flow guide heads (4) are arranged at two ends of the metal base (2), and second flow guide heads (7) are arranged at two ends of the righting wing (1).
2. A high temperature rubber wing centralizer, according to claim 1, wherein: the metal seat (2) is fastened on a casing or a short joint of the centralizing wing (1) of the logging-while-drilling instrument through a threaded hole (5) by a jackscrew or a screw.
3. A high temperature rubber wing centralizer, according to claim 1, wherein: the number and the width of the righting wings (1) and the thickness of the rubber layer (3) can be adjusted.
4. A high temperature rubber wing centralizer, according to claim 3, wherein: the number of the centralizing wings (1) can be three wings, four wings or six wings.
5. A high temperature rubber wing centralizer, according to claim 1, wherein: the centralizer may have an inner diameter and an outer diameter that are adjustable based on the outer diameter of the logging tool and the inner diameter of the housing in which it is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120694556.0U CN214787236U (en) | 2021-04-06 | 2021-04-06 | High-temperature rubber wing-shaped centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120694556.0U CN214787236U (en) | 2021-04-06 | 2021-04-06 | High-temperature rubber wing-shaped centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787236U true CN214787236U (en) | 2021-11-19 |
Family
ID=78669791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120694556.0U Expired - Fee Related CN214787236U (en) | 2021-04-06 | 2021-04-06 | High-temperature rubber wing-shaped centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027762A (en) * | 2023-07-18 | 2023-11-10 | 中国科学院声学研究所 | Centralizing shock absorber for logging |
-
2021
- 2021-04-06 CN CN202120694556.0U patent/CN214787236U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027762A (en) * | 2023-07-18 | 2023-11-10 | 中国科学院声学研究所 | Centralizing shock absorber for logging |
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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: 20211119 |