CN220580985U - Centralizer for petroleum logging instrument - Google Patents
Centralizer for petroleum logging instrument Download PDFInfo
- Publication number
- CN220580985U CN220580985U CN202322283204.8U CN202322283204U CN220580985U CN 220580985 U CN220580985 U CN 220580985U CN 202322283204 U CN202322283204 U CN 202322283204U CN 220580985 U CN220580985 U CN 220580985U
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- Prior art keywords
- supporting guide
- centralizer
- arc
- wall
- outer side
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- 239000003208 petroleum Substances 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000005069 ears Anatomy 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
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a centralizer for petroleum logging instrument, which relates to the technical field of petroleum detection instrument, and comprises two positioning mechanisms which are arranged symmetrically up and down, wherein a plurality of supporting guide rods are arranged between the two positioning mechanisms; the plurality of telescopic travelling mechanisms are arranged on the outer wall of the positioning mechanism; each adjusting mechanism is arranged on the outer side of the corresponding supporting guide rod; each adjusting mechanism comprises two arc-shaped elastic sheets which are arranged symmetrically up and down, an adjusting seat is connected between the ends of the two arc-shaped elastic sheets, which are close to each other, and a first rolling ball is embedded in the outer side surface of the adjusting seat; the end parts of the two arc-shaped elastic sheets, which are far away from each other, are connected with the outer wall of the sliding sleeve, and the sliding sleeve can slide on the supporting guide rod. The utility model can keep the petroleum logging instrument positioned on the central axis of the oil pipe, avoid contacting with the inner wall of the oil pipe, avoid the direct collision between the logging instrument and the pipe wall, and simultaneously avoid transmitting vibration to the logging instrument by the two arc-shaped elastic sheets and avoid damaging the logging instrument.
Description
Technical Field
The utility model relates to the technical field of petroleum detection instruments, in particular to a centralizer for petroleum logging instruments.
Background
In the oil well detection process, logging instruments are thrown into an oil well through an oil pipe, in the throwing process, the logging instruments frequently collide with the pipe wall of the oil pipe, and vibration generated by collision and vibration transmitted from the outside of the oil pipe can have certain influence on the precision and service life of the logging instruments. While the guide means using rigid materials in order to avoid direct contact between the logging instrument and the pipe wall can avoid direct collision of the logging instrument with the pipe wall, the guide means still transmits vibration to the logging instrument, thereby causing damage to the logging instrument.
Accordingly, one skilled in the art would provide a centralizer for a petroleum logging tool that addresses the problems set forth in the background above.
Disclosure of Invention
The utility model provides a centralizer for petroleum logging instrument, which aims at the defects in the technology.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model relates to a centralizer for petroleum logging instrument, comprising:
two positioning mechanisms which are arranged vertically symmetrically, and a plurality of supporting guide rods are arranged between the two positioning mechanisms;
the telescopic travelling mechanisms are arranged on the outer wall of the positioning mechanism;
the adjusting mechanisms are arranged on the outer sides of the corresponding supporting guide rods;
each adjusting mechanism comprises two arc-shaped elastic sheets which are arranged symmetrically up and down, an adjusting seat is connected between the ends of the two arc-shaped elastic sheets, which are close to each other, a first rolling ball is embedded in the outer side surface of the adjusting seat, and the first rolling ball part extends out of the outer side surface of the adjusting seat; the ends, far away from each other, of the two arc-shaped elastic sheets are connected with the outer wall of the sliding sleeve, and the sliding sleeve can slide on the corresponding supporting guide rod.
Further, the medial surface of adjustment seat is connected with the lateral surface of fixing base through first telescopic link, the fixing base sets up corresponding support the middle part of guide bar, the outside cover of first telescopic link is equipped with first spring, the both ends of first spring are connected with the medial surface of adjustment seat and the lateral surface of fixing base respectively.
Further, the inner side surface of the adjusting seat and the outer side surface of the fixing seat are respectively connected with two swing rods in a rotating mode, and the two swing rods located on the same side are connected in a rotating mode.
Further, both ends of the supporting guide rod are respectively connected with the corresponding positioning mechanisms through the supporting guide blocks, a second spring is abutted between the supporting guide blocks and the corresponding sliding sleeves, and the second spring is sleeved on the corresponding supporting guide rod.
Further, two limiting blocks are symmetrically arranged in the middle of the supporting guide rod up and down, and each limiting block is located between the fixing seat and the sliding sleeve.
Further, positioning mechanism includes the clamp that two symmetries set up, and the both ends of every clamp are provided with fixed ear respectively, two on the clamp be located through screw connection between two fixed ears of homonymy.
Further, a plurality of anti-slip pads are distributed on the inner side of each clamp.
Further, the telescopic travelling mechanism comprises a second telescopic rod, one end of the second telescopic rod is fixed on the outer wall of the corresponding clamp, the other end of the second telescopic rod is provided with a fixed block, a second rolling ball is embedded in the end face, far away from the second telescopic rod, of the fixed block, and the second rolling ball part extends out of the other end face of the fixed block.
In the technical scheme, the centralizer for the petroleum logging instrument has the following beneficial effects:
1. the first rolling ball enables the adjusting seat to move towards the corresponding supporting guide rod under the action of the inner wall of the oil pipe, and meanwhile, the adjusting seat is tightly attached to the inner wall of the oil pipe under the action of the corresponding two arc-shaped elastic sheets, so that the petroleum logging instrument is kept to be located in the central axis of the oil pipe, the contact with the inner wall of the oil pipe is avoided, the direct collision between the logging instrument and the pipe wall can be avoided, meanwhile, the vibration can be prevented from being transmitted to the logging instrument through the two arc-shaped elastic sheets, and the damage to the logging instrument is avoided.
2. The second spring can be abutted against the end part of the sliding sleeve, so that the arc-shaped elastic sheet is kept in a stressed state, and then the first rolling ball can be kept in contact with the inner wall of the oil pipe when in use 。
3. The limiting block limits the sliding sleeve to slide to the position in the direction of the fixed seat, so that the problem that the arc-shaped elastic sheet exceeds the limit and cannot be recovered due to the fact that the two sliding sleeves on the same supporting guide rod are too close to each other is avoided 。
4. The plurality of anti-slip pads enable the clamp to clamp the petroleum logging instrument, and the situation that the petroleum logging instrument falls down to be damaged in the working process is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a front view of a centralizer for a petroleum logging tool according to an embodiment of the utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of the connection structure of the support guide bar and the adjustment mechanism of FIG. 1;
fig. 4 is an enlarged schematic view of the portion a in fig. 1.
Reference numerals illustrate:
10. supporting a guide rod; 11. supporting the guide block; 12. a limiting block;
20. an arc-shaped elastic sheet; 21. an adjusting seat; 22. a first ball; 23. a sliding sleeve; 24. a first telescopic rod; 25. a fixing seat; 26. a first spring; 27. swing rod; 28. a second spring;
30. a clamp; 31. a fixed ear; 32. a screw; 33. an anti-slip pad;
40. a second telescopic rod; 41. a fixed block; 42. and a second ball.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
See fig. 1-4;
the embodiment of the utility model provides a centralizer for an oil logging instrument, which comprises the following components:
the two positioning mechanisms are arranged vertically symmetrically, a plurality of supporting guide rods 10 are arranged between the two positioning mechanisms, the upper end and the lower end of the petroleum logging instrument are respectively fixed by the upper positioning mechanism and the lower positioning mechanism, so that the petroleum logging instrument is positioned between the two positioning mechanisms, and is not in closing contact with an oil pipe when in use;
the telescopic travelling mechanisms are arranged on the outer wall of the positioning mechanism, the outermost ends of the telescopic travelling mechanisms are in contact with the wall of the oil pipe and can travel along the wall of the oil pipe, and meanwhile, the positioning mechanism is not in contact with the wall of the oil pipe;
a plurality of adjusting mechanisms, each of which is installed to correspond to the outer side of the support guide bar 10;
each adjusting mechanism comprises two arc-shaped elastic pieces 20 which are arranged symmetrically up and down, an adjusting seat 21 is connected between the ends, close to each other, of the two arc-shaped elastic pieces 20, a first rolling ball 22 is embedded in the outer side surface of the adjusting seat 21, and part of the first rolling ball 22 extends out of the outer side surface of the adjusting seat 21; the ends of the two arc-shaped elastic pieces 20 which are far away from each other are connected with the outer wall of the sliding sleeve 23, and the sliding sleeve 23 can slide on the corresponding supporting guide rod 10. The inner side of the adjusting seat 21 is connected with the outer side of the fixing seat 25 through a first telescopic rod 24, the fixing seat 25 is arranged at the middle part corresponding to the supporting guide rod 10, a first spring 26 is sleeved on the outer side of the first telescopic rod 24, and two ends of the first spring 26 are respectively connected with the inner side of the adjusting seat 21 and the outer side of the fixing seat 25. The inner side surface of the adjusting seat 21 and the outer side surface of the fixing seat 25 are respectively connected with two swing rods 27 in a rotating manner, the two swing rods 27 located on the same side are connected in a rotating manner, the longest length of the two connected swing rods 27 is larger than that of the corresponding first telescopic rod 24, so that the direction of an included angle between the two adjacent swing rods 27 faces the first telescopic rod 24, and the two swing rods 27 can swing reciprocally along the preset direction. The two ends of the supporting guide rod 10 are respectively connected with the corresponding positioning mechanisms through the supporting guide blocks 11, a second spring 28 is propped between the supporting guide blocks 11 and the corresponding sliding sleeve 23, the second spring 28 is sleeved on the corresponding supporting guide rod 10, the second spring 28 can be propped against the end part of the sliding sleeve 23, the arc-shaped elastic sheet 20 is kept in a stressed state, and then the first rolling ball 22 can be kept in contact with the inner wall of an oil pipe when in use. Two limiting blocks 12 are symmetrically arranged in the middle of the supporting guide rod 10 up and down, each limiting block 12 is located between the corresponding fixing seat 25 and the corresponding sliding sleeve 23, the limiting blocks 12 limit the sliding sleeve 23 to slide to the position of the corresponding fixing seat 25, and the situation that the arc-shaped elastic piece 20 exceeds the limit and cannot be recovered due to the fact that the two sliding sleeves 23 on the same supporting guide rod 10 are too close to each other is avoided.
Before the work, an adjustment mechanism is installed in the outside of every support guide bar 10, adjustment seat 21 of adjustment mechanism slightly stands out in the outermost end that corresponds running gear under the effect of two arc elastic pieces 20, after this application centralizer passes through positioning mechanism fastening oil logging instrument, send into oil pipe, a plurality of telescopic machanism and oil pipe outer wall contact and can remove along oil pipe inner wall, at this moment, first spin 22 makes adjustment seat 21 to the direction of corresponding support guide bar 10 under the effect of oil pipe inner wall, hug closely with oil pipe inner wall under the effect of two arc elastic pieces 20 that correspond simultaneously, keep oil logging instrument to be located the axis of oil pipe, avoid contacting with oil pipe inner wall, can avoid logging instrument and pipe wall's direct collision, can avoid transmitting vibrations to logging instrument through two arc elastic pieces 20 simultaneously, avoid causing the damage of logging instrument.
When the adjusting seat 21 moves toward the corresponding supporting guide rod 10, the first rolling ball 22 can be kept in contact with the inner wall of the oil pipe under the action of the fixing seat 25, the first telescopic rod 24, the first spring 26 and the arc-shaped elastic piece 20, and meanwhile, the arc-shaped elastic piece 20 must be kept out of contact with the inner wall of the oil pipe in this state.
The positioning mechanism comprises two symmetrically arranged clamping bands 30, two ends of each clamping band 30 are respectively provided with a fixing lug 31, and two fixing lugs 31 on the same side of each clamping band 30 are connected through a screw 32. Each clamp 30's inboard all distributes a plurality of slipmats 33, and a plurality of slipmats 33 are last to be the arc structure with oil logging instrument contact surface, and a plurality of slipmats 33 enable clamp 30 to block oil logging instrument, avoid appearing in the course of the work that oil logging instrument drops and the condition that damages takes place.
The telescopic travelling mechanism comprises a second telescopic rod 40, one end of the second telescopic rod 40 is fixed on the outer wall of the corresponding clamp 30, a fixed block 41 is arranged at the other end of the second telescopic rod 40, a second rolling ball 42 is embedded in the end face, far away from the second telescopic rod 40, of the fixed block 41, and part of the second rolling ball 42 extends out of the other end face of the fixed block 41; the second telescopic rod 40 comprises a first straight rod and a second straight rod, the second straight rod can be telescopic in the first straight rod, and an elastic mechanism is arranged between the end part of the second straight rod extending into the first straight rod and the first straight rod so as to ensure that the second rolling ball 42 on the fixed block 41 can keep contact with the inner wall of the oil pipe.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A centralizer for an oil logging tool, comprising:
two positioning mechanisms which are arranged vertically symmetrically, and a plurality of supporting guide rods (10) are arranged between the two positioning mechanisms;
the telescopic travelling mechanisms are arranged on the outer wall of the positioning mechanism;
a plurality of adjusting mechanisms, each of which is installed on the outer side of the corresponding supporting guide rod (10);
each adjusting mechanism comprises two arc-shaped elastic sheets (20) which are arranged vertically symmetrically, an adjusting seat (21) is connected between the ends, close to each other, of the two arc-shaped elastic sheets (20), a first rolling ball (22) is embedded into the outer side surface of the adjusting seat (21), and part of the first rolling ball (22) extends out of the outer side surface of the adjusting seat (21); the ends, far away from each other, of the two arc-shaped elastic sheets (20) are connected with the outer wall of the sliding sleeve (23), and the sliding sleeve (23) can slide on the corresponding supporting guide rod (10).
2. A centralizer for petroleum logging equipment according to claim 1, wherein: the inner side of the adjusting seat (21) is connected with the outer side of the fixing seat (25) through a first telescopic rod (24), the fixing seat (25) is arranged in the middle of the supporting guide rod (10), a first spring (26) is sleeved on the outer side of the first telescopic rod (24), and two ends of the first spring (26) are connected with the inner side of the adjusting seat (21) and the outer side of the fixing seat (25) respectively.
3. A centralizer for petroleum logging equipment according to claim 2, wherein: the inner side surface of the adjusting seat (21) and the outer side surface of the fixing seat (25) are respectively connected with two swing rods (27) in a rotating mode, and the two swing rods (27) located on the same side are connected in a rotating mode.
4. A centralizer for a petroleum logging tool according to claim 3, wherein: the two ends of the supporting guide rod (10) are respectively connected with the corresponding positioning mechanisms through the supporting guide blocks (11), a second spring (28) is propped between the supporting guide blocks (11) and the corresponding sliding sleeves (23), and the second spring (28) is sleeved on the corresponding supporting guide rod (10).
5. The centralizer for petroleum logging tool of claim 4, wherein: two limiting blocks (12) are symmetrically arranged in the middle of the supporting guide rod (10) up and down, and each limiting block (12) is located between the fixing seat (25) and the sliding sleeve (23).
6. A centralizer for petroleum logging equipment according to claim 1, wherein: the positioning mechanism comprises two symmetrically arranged hoops (30), two ends of each hoop (30) are respectively provided with a fixed lug (31), and two fixed lugs (31) which are positioned on the same side on each hoop (30) are connected through a screw (32).
7. The centralizer for petroleum logging tool of claim 6, wherein: a plurality of anti-slip pads (33) are distributed on the inner side of each clamp (30).
8. A centralizer for petroleum logging equipment according to claim 1, wherein: the telescopic travelling mechanism comprises a second telescopic rod (40), one end of the second telescopic rod (40) is fixed on the outer wall of the corresponding clamp (30), the other end of the second telescopic rod (40) is provided with a fixed block (41), a second rolling ball (42) is embedded into the end face, far away from the second telescopic rod (40), of the fixed block (41), and the second rolling ball (42) partially extends out of the other end face of the fixed block (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283204.8U CN220580985U (en) | 2023-08-24 | 2023-08-24 | Centralizer for petroleum logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283204.8U CN220580985U (en) | 2023-08-24 | 2023-08-24 | Centralizer for petroleum logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220580985U true CN220580985U (en) | 2024-03-12 |
Family
ID=90113369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322283204.8U Active CN220580985U (en) | 2023-08-24 | 2023-08-24 | Centralizer for petroleum logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220580985U (en) |
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2023
- 2023-08-24 CN CN202322283204.8U patent/CN220580985U/en active Active
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