CN113530472A - Nylon sliding block centralizer - Google Patents
Nylon sliding block centralizer Download PDFInfo
- Publication number
- CN113530472A CN113530472A CN202010292832.0A CN202010292832A CN113530472A CN 113530472 A CN113530472 A CN 113530472A CN 202010292832 A CN202010292832 A CN 202010292832A CN 113530472 A CN113530472 A CN 113530472A
- Authority
- CN
- China
- Prior art keywords
- centralizer
- nylon
- sliding block
- nylon sliding
- centralizer body
- 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.)
- Pending
Links
- 239000004677 Nylon Substances 0.000 title claims abstract description 61
- 229920001778 nylon Polymers 0.000 title claims abstract description 61
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a nylon sliding block centralizer, which relates to the technical field of instruments and equipment such as oil drilling or well cementation, well logging and the like, and comprises a centralizer body, wherein the centralizer body is cylindrical and hollow, an upper fixed disc is fixedly arranged on the upper surface of the centralizer body, a lower fixed disc is fixedly arranged on the lower surface of the centralizer body, a plurality of clamping seats are uniformly arranged on the surface of the centralizer body at intervals, a nylon sliding block is arranged in the middle of each clamping seat, and the nylon sliding blocks are fixedly connected with the clamping seats. The nylon sliding block surface in this application is smooth, and the centering degree of sleeve pipe or instrument in the well when can ensureing well cementation or logging guarantees the quality of well cementation or logging, and the nylon sliding block surface is provided with the spring moreover, can reduce the radial impact force that the centralizer received to nylon sliding block centralizer is split type, and the later stage of being convenient for has practiced thrift manufacturing cost to the maintenance and the change of centralizer.
Description
Technical Field
The invention relates to the technical field of instruments and equipment for petroleum drilling or well cementation, well logging and the like, in particular to a nylon sliding block centralizer.
Background
The centering degree of the casing or the instrument in the well hole is one of determinants of the well cementation or the well logging quality of the oil and gas well, and the placement of the centralizer is the basis of the centering or not of the casing or the instrument. Centralizers are components used to centralize, ensure concentricity of, and within, a casing or instrument in a wellbore. The performance of centralizers of different types has different influences on the setting-in and final centering degree of a casing or an instrument, and the existing centralizer has the problems that a working rib plate is easy to permanently deform after being subjected to large load, so that the resetting force of an elastic casing or an instrument centralizer is insufficient, the centering degree of the casing or the instrument in a well hole is insufficient during well cementation or logging, the well cementation or logging quality is reduced, serious consequences such as failure of well cementation or logging, inaccuracy of data of oil-gas string layers and the like can be caused when the eccentricity is too large, the deformed centralizer cannot be reused, and the cost is high.
Disclosure of Invention
The invention provides a nylon sliding block centralizer, aiming at solving the problems that a working rib plate of the centralizer in the prior art is easy to permanently deform under a large load, so that the resetting force of an elastic sleeve centralizer is insufficient, and the maintenance cost is not high easily.
The specific technical scheme is as follows:
the utility model provides a nylon sliding block centralizer, includes the centralizer body, the centralizer body is the cylinder, and inside cavity, centralizer body upper fixed surface is provided with the upper fixed disk, centralizer body lower fixed surface is provided with down the fixed disk, the even interval in centralizer body surface is provided with a plurality of cassettes, every all be provided with the nylon sliding block in the middle of the cassette, nylon sliding block and cassette fixed connection.
Preferably, the clamping seat comprises two clamping pieces with the same structure size, and the two clamping pieces are symmetrically arranged and vertically welded on the surface of the centralizer body.
Preferably, the card is in an isosceles trapezoid shape.
Preferably, two the fixed orifices has been seted up in correspondence of card middle part, the through-hole has been seted up at the nylon sliding block middle part, through-hole and fixed orifices set up relatively, the nylon sliding block passes through bolt assembly and two adjacent card fixed connection.
Preferably, the nylon sliding block is ship-shaped, and the curved surface of the nylon sliding block is far away from the centralizer body.
Preferably, the inner surface of the nylon sliding block is provided with a plurality of circular grooves, springs are fixedly arranged in the circular grooves, and the springs are abutted to the centralizer body.
Preferably, the nylon sliding block is provided with two circular grooves on the inner surface.
Preferably, the nylon sliding blocks are provided with 6 nylon sliding blocks.
Compared with the prior art, the invention has the following beneficial effects:
(1) the utility model provides a centralizer includes a plurality of nylon sliding blocks, and in the use of centralizer, because the nylon sliding block surface is smooth, not only can reduce the wearing and tearing of centralizer, and the centering degree of sleeve pipe or instrument in the well bore when can ensureing well cementation or logging in addition guarantees the quality of well cementation or logging.
(2) The nylon sliding block surface in this application is provided with the spring, and in the use of centralizer, the nylon sliding block has certain deformability, can reduce the radial impact force that the centralizer received, has guaranteed the restoring force of spring housing centralizer, has further guaranteed the well cementation quality.
(3) The utility model provides a centralizer includes a plurality of nylon sliding blocks, and nylon sliding block and centralizer body are split type, receive permanent deformation back when the spring steel sheet, can just maintain and change the spring steel sheet, to centralizer reuse, further practiced thrift manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of a nylon slider centralizer of the present invention without a nylon slider;
FIG. 2 is a schematic structural diagram of a nylon slider in the nylon slider centralizer of the present invention.
In the figure, 1-a centralizer body, 2-an upper fixed disk, 3-a lower fixed disk, 4-a nylon sliding block, 5-a clamping piece, 6-a fixed hole, 7-a through hole and 8-a spring.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention discloses a nylon sliding block centralizer, which comprises a centralizer body 1, wherein the centralizer body 1 is a cylinder and is hollow, an upper fixing disc 2 is fixedly arranged on the upper surface of the centralizer body 1, a lower fixing disc 3 is fixedly arranged on the lower surface of the centralizer body 1, a plurality of clamping seats are uniformly arranged on the surface of the centralizer body 1 at intervals, a nylon sliding block 4 is arranged in the middle of each clamping seat, and the nylon sliding block 4 is fixedly connected with the clamping seats. The cassette includes two structure size cards 5 that equal, and two cards 5 symmetry sets up, and perpendicular welding is on 1 surface of centralizer body. Preferably, the card 5 is an isosceles trapezoid, and the bottom edge of the isosceles trapezoid is connected with the centralizer main body. Two 5 middle parts of card correspond and have been seted up fixed orifices 6, and through-hole 7 has been seted up at 4 middle parts of nylon slider, and through-hole 7 runs through nylon slider 4, and through-hole 7 and fixed orifices 6 set up relatively, and nylon slider 4 passes through bolt assembly and two adjacent 5 fixed connection of cards, and bolt assembly is screw rod and nut, and the screw rod setting is in through-hole 7, and the nut is passed through at the both ends of screw rod and is fixed on 5 surfaces of card.
As shown in fig. 2, the nylon slider 4 is boat-shaped, and the curved surface of the nylon slider 4 is far away from the centralizer body 1. The inner surface of the nylon sliding block 4 is provided with a plurality of circular grooves, the circular grooves are internally and fixedly provided with springs 8, and the springs 8 are abutted to the centralizer body 1. Two circular grooves are arranged on the inner surface of the nylon sliding block 4. Further preferably, 6 nylon sliders 4 are provided.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (8)
1. The utility model provides a nylon slider centralizer which characterized in that: including the centralizer body, the centralizer body is the cylinder, and inside cavity, fixed surface is provided with the upper fixed disk on the centralizer body, fixed surface is provided with down the fixed disk under the centralizer body, the even interval in centralizer body surface is provided with a plurality of cassettes, every all be provided with the nylon sliding block in the middle of the cassette, nylon sliding block and cassette fixed connection.
2. The nylon slider centralizer of claim 1, wherein: the clamping seat comprises two clamping pieces with the same structure size, the two clamping pieces are symmetrically arranged and vertically welded on the surface of the centralizer body.
3. The nylon slider centralizer of claim 2, wherein: the card is isosceles trapezoid.
4. A nylon slide centralizer as claimed in claim 2 or 3, wherein: the fixing holes are correspondingly formed in the middle of the clamping pieces, the through holes are formed in the middle of the nylon sliding blocks, the through holes and the fixing holes are oppositely formed, and the nylon sliding blocks are fixedly connected with the two adjacent clamping pieces through bolt assemblies.
5. The nylon slider centralizer of claim 4, wherein: the nylon sliding block is ship-shaped, and the curved surface of the nylon sliding block is far away from the centralizer body.
6. The nylon slider centralizer of claim 5, wherein: the nylon slider internal surface is provided with a plurality of circular recesses, the circular recess internal fixation is provided with the spring, the spring offsets with the centralizer body.
7. The nylon slider centralizer of claim 6, wherein: two circular grooves are formed in the inner surface of the nylon sliding block.
8. The nylon slider centralizer of claim 7, wherein: the nylon sliding blocks are provided with 6 nylon sliding blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010292832.0A CN113530472A (en) | 2020-04-15 | 2020-04-15 | Nylon sliding block centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010292832.0A CN113530472A (en) | 2020-04-15 | 2020-04-15 | Nylon sliding block centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113530472A true CN113530472A (en) | 2021-10-22 |
Family
ID=78088209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010292832.0A Pending CN113530472A (en) | 2020-04-15 | 2020-04-15 | Nylon sliding block centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113530472A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293638Y (en) * | 1997-04-30 | 1998-10-07 | 东营区胜利福利石油工具厂 | Sucker rod centralizer |
| WO2016043901A1 (en) * | 2014-09-19 | 2016-03-24 | Halliburton Energy Services, Inc. | Centralizer for use with wellbore drill collar |
| CN110230474A (en) * | 2019-07-02 | 2019-09-13 | 北京长城博创科技有限公司 | Conductive centralizer |
| CN212079230U (en) * | 2020-04-15 | 2020-12-04 | 扬州市江都区人和机械有限公司 | Nylon sliding block centralizer |
-
2020
- 2020-04-15 CN CN202010292832.0A patent/CN113530472A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293638Y (en) * | 1997-04-30 | 1998-10-07 | 东营区胜利福利石油工具厂 | Sucker rod centralizer |
| WO2016043901A1 (en) * | 2014-09-19 | 2016-03-24 | Halliburton Energy Services, Inc. | Centralizer for use with wellbore drill collar |
| CN110230474A (en) * | 2019-07-02 | 2019-09-13 | 北京长城博创科技有限公司 | Conductive centralizer |
| CN212079230U (en) * | 2020-04-15 | 2020-12-04 | 扬州市江都区人和机械有限公司 | Nylon sliding block centralizer |
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