CN207686625U - It is a kind of without cross core type logger centralizer - Google Patents
It is a kind of without cross core type logger centralizer Download PDFInfo
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- CN207686625U CN207686625U CN201721914823.0U CN201721914823U CN207686625U CN 207686625 U CN207686625 U CN 207686625U CN 201721914823 U CN201721914823 U CN 201721914823U CN 207686625 U CN207686625 U CN 207686625U
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- centralizer
- logger
- fixed ring
- core type
- instrument
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Abstract
The utility model discloses a kind of without core type logger centralizer is crossed, and solved the problems, such as that the instrument string length of core type centralizer connection was long.Specifically include at least one spring leaf；The both ends of the spring leaf are separately connected fixed ring and loose collar；The fixed ring is sleeved on the outside of the logger with the loose collar；There is clamping structure in the fixed ring；The clamping structure is fixedly connected with pair with the projective structure of logger outer wall composition, for avoiding the centralizer axial float.The application centralizer is used without core type design is crossed, and can be directly sleeved on the outside of instrument string, while ensureing to carry out righting to instrument, not increased the length of instrument string, is avoided instrument and is hampered and meets the generation of card phenomenon, improves construction efficiency.
Description
Technical field
The utility model is related to a kind of logger centralizers.
Background technology
When existing oilfield producing well is tested, to ensure the working performance of instrument, it is desirable that downhole instrument is using process
The instrument centralizer of middle installation centralizer, especially flow rate test class is even more important.It is currently used cross core type centralizer, be
It crosses and spring leaf is mounted equidistant on the guide rod of core, by the radical elasticity between spring leaf and tube wall, ensure that test equipment is integrally placed in the middle.
When test equipment works, instrument short circuit and the corresponding component for crossing the lower end connection other parameters of core type centralizer are common
It is combined as long instrument string, with continually developing for oil field, the drawbacks of hole condition becomes increasingly complex, long instrument string gradually displays.
Being hampered and meeting card for instrument is mainly easily caused, to damage centralizer, or even test is caused to interrupt, reduces construction efficiency.
Invention content
In view of this, the utility model offer is a kind of without core type logger centralizer is crossed, instrument string can be obviously shortened
Length, avoid instrument from being hampered and meet the generation of card phenomenon.
For achieving the above object, the technical solution adopted in the utility model is：
It is a kind of without cross core type logger centralizer, including：
At least one spring leaf；
The both ends of the spring leaf are separately connected fixed ring and loose collar；
The fixed ring is sleeved on the outside of the logger with the loose collar；
There is clamping structure in the fixed ring；
The clamping structure is fixedly connected with pair with the projective structure of logger outer wall composition, for avoiding described help
Positive device axial float.
Preferably, the spring leaf being arranged circumferentially along the fixed ring and the loose collar.
Preferably, the clamping structure in the fixed ring, is that annular slot is arranged on the inside of fixed ring；
The annular slot is stuck on the external screw thread of the logger.
The beneficial effects of the utility model：First, the conventional mode of thinking is broken through, using without core type design excessively so that righting
Device can be directly sleeved on the outside of instrument string, while ensureing to carry out righting to instrument, not increase the length of instrument string, relative to mistake
Core type centralizer needs to be connected on instrument string, achieve the purpose that shorten single instrument string total length, avoid instrument be hampered and
The generation for meeting card phenomenon, improves construction efficiency；Second is that the application centralizer structure is simple, and it is highly practical, it is suitable for various types of
The logger of type.
Description of the drawings
By the description below with reference to attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage it is apparent, in the accompanying drawings：
Fig. 1 is the utility model embodiment without the structural schematic diagram for crossing core type logger centralizer.
Specific implementation mode
The utility model is described below based on embodiment, but it is worth noting that, the utility model is simultaneously unlimited
In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So
And for the part of no detailed description, those skilled in the art can also understand the utility model completely.
In addition, it should be understood by one skilled in the art that the attached drawing that is provided is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
Fig. 1 is the utility model embodiment without the structural schematic diagram for crossing core type logger centralizer.As shown in Figure 1：
It is a kind of without cross core type logger centralizer, including：
At least one spring leaf 3；
The both ends of spring leaf 3 are separately connected fixed ring 1 and loose collar 2；
Fixed ring 1 is sleeved on the outside of logger with loose collar 2；
There is clamping structure in fixed ring 1；
Clamping structure is fixedly connected with pair with the projective structure of logger outer wall composition, for avoiding centralizer from axially altering
It is dynamic.
Further, in Fig. 1, being arranged circumferentially along fixed ring 1 and loose collar 2 of spring leaf 3.
Further, in Fig. 1, the clamping structure in fixed ring 1 is the setting annular slot 4 on the inside of fixed ring；
Annular slot 4 is stuck on the external screw thread of logger.
Specifically, in conjunction with Fig. 1, the application method of the utility model is simply described：
In use, logger is passed through from the center of fixed ring 1 and loose collar 2, the card slot in fixed ring 1 is stuck in well logging
On the external screw thread of instrument, 3 radial expansion of spring leaf, loose collar 2 is along the axial activity of logger.By between spring leaf 3 and tube wall
Radical elasticity, ensure logger it is integrally placed in the middle.
Embodiment described above is only to express the embodiment of the utility model, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the utility model patent range therefore be interpreted as.It should be pointed out that the ordinary skill people of this field
For member, without departing from the concept of the premise utility, several deformations, same replacement can also be made, improved etc., these
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (3)
1. a kind of without core type logger centralizer, including at least one spring leaf excessively；It is characterized in that：
The both ends of the spring leaf are separately connected fixed ring and loose collar；
The fixed ring is sleeved on the outside of the logger with the loose collar；
There is clamping structure in the fixed ring；
The clamping structure is fixedly connected with pair with the projective structure of logger outer wall composition, for avoiding the centralizer
Axial float.
2. according to claim 1 without core type logger centralizer excessively, it is characterised in that：The spring leaf is along described solid
Determine being arranged circumferentially for ring and the loose collar.
3. according to claim 1 without core type logger centralizer excessively, it is characterised in that：Clamping in the fixed ring
Structure is that annular slot is arranged on the inside of fixed ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721914823.0U CN207686625U (en) | 2017-12-31 | 2017-12-31 | It is a kind of without cross core type logger centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721914823.0U CN207686625U (en) | 2017-12-31 | 2017-12-31 | It is a kind of without cross core type logger centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686625U true CN207686625U (en) | 2018-08-03 |
Family
ID=62994064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721914823.0U Active CN207686625U (en) | 2017-12-31 | 2017-12-31 | It is a kind of without cross core type logger centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454106A (en) * | 2019-09-09 | 2019-11-15 | 北京大德广源石油技术服务有限公司 | Underground release device for Ultrasonic Well Logging |
-
2017
- 2017-12-31 CN CN201721914823.0U patent/CN207686625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454106A (en) * | 2019-09-09 | 2019-11-15 | 北京大德广源石油技术服务有限公司 | Underground release device for Ultrasonic Well Logging |
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