CN207296905U - A kind of detachable centralizer - Google Patents
A kind of detachable centralizer Download PDFInfo
- Publication number
- CN207296905U CN207296905U CN201721234111.4U CN201721234111U CN207296905U CN 207296905 U CN207296905 U CN 207296905U CN 201721234111 U CN201721234111 U CN 201721234111U CN 207296905 U CN207296905 U CN 207296905U
- Authority
- CN
- China
- Prior art keywords
- ring pipe
- connecting hole
- centralizer
- clip
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of detachable centralizer,Including the centralizer body in cylinder,Ring pipe is set with the middle part periphery of the centralizer body,Pass through threaded engagement connection between the centralizer body and ring pipe,The axial arranged wiper block of three row is evenly equipped with the outer pipe wall of the ring pipe,The ring pipe upper end end has the circular fold outwards vertically bent,It is provided with the circular fold multiple,The circumferentially uniformly distributed connecting hole in direction,So as to the structure of dismounting is set with clip on the periphery of centralizer body where above the ring pipe,The fixed ear for the connecting hole number being matched with circular fold is welded with the periphery of the clip,It is provided with the fixed ear and the one-to-one through hole in connecting hole aperture on circular fold,Passed through by clamping screw and lock the through hole of fixed ear on the connecting hole and clip of ring pipe.The utility model can replace the wiper block arranged on ring pipe by replacing ring pipe, cost-effective to achieve the purpose that.
Description
Technical field
Oil-well drilling equipment is the utility model is related to, is specifically a kind of detachable centralizer.
Background technology
Centralising device for drilling tool is also known as drilling tool stabilizer, is indispensable common downhole tool in oil drilling, mainly should
For development well, adjustment well, prospect pit, deviated wells and orientation cluster well.Centralizer at work, to realize its righting function,
Certainty is contacted with the borehole wall to friction and collision.Cause centralizer wiper block and the borehole wall contact surface abrasion it is serious, it is and existing
Wiper block is integrally formed or is fixed together with centralizer, after wiper block serious wear, whole centralizer
With regard to all scrapping, its use cost is high.
The content of the invention
The purpose of this utility model is that：In view of the above shortcomings of the prior art, there is provided one kind can be by replacing annular
Pipe replaces the wiper block arranged on ring pipe, to reach the detachable centralizer of cost-effective purpose.
The technical solution adopted in the utility model is a kind of detachable centralizer, including the centralizer body in cylinder,
Ring pipe is set with the middle part periphery of the centralizer body, is connected between the centralizer body and ring pipe by threaded engagement
Connect, the axial arranged wiper block of three row is evenly equipped with the outer pipe wall of the ring pipe, which, which has, outwards hangs down
The circular fold directly bent, is provided with multiple, the circumferentially uniformly distributed connecting hole in direction on the circular fold, institute above the ring pipe
Centralizer body periphery on so as to dismounting structure be set with clip, be welded with the periphery of the clip and be matched with ring
The fixed ear of connecting hole number on shape flanging, is provided with the fixed ear and the connecting hole aperture on circular fold corresponds
Through hole, passed through by clamping screw and lock the through hole of fixed ear on the connecting hole and clip of ring pipe.
The wiper block is strip, and the top surface heap of the wiper block is welded with the semi-cylindrical arc made of cemented carbide material
Shape face.
The beneficial effects of the utility model are：The utility model can be arranged by replacing ring pipe to replace on ring pipe
Wiper block, it is cost-effective to achieve the purpose that.
Brief description of the drawings
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structure diagram of the utility model.
Code name implication in figure：1-centralizer body；2-ring pipe；3-wiper block；4-circular fold；5-clip；
6-fixed ear；7-clamping screw；8-fixing bolt.
Embodiment
It is shown in Figure 1：The utility model is a kind of detachable centralizer, including the centralizer body 1 in cylinder, institute
State and ring pipe 2 is set with the middle part periphery of centralizer body 1, pass through threaded engagement between the centralizer body 1 and ring pipe 2
Connection, is evenly equipped with the axial arranged wiper block 3 of three row in the outer pipe wall of the ring pipe 2, the 2 upper end end of ring pipe have to
The outer circular fold 4 vertically bent, multiple, the circumferentially uniformly distributed connecting hole in direction, the ring pipe are provided with the circular fold 4
So as to the structure of dismounting is set with clip 5 on the periphery of centralizer body 1 where 2 tops（The clip is mainly by two halves half
The fixing bolt composition of two skeletons of skeleton and connection of crescent shape, the side of two skeletons are mutually hinged, the two
The opposite side of skeleton is by 8 lock ring of fixing bolt on centralizer body 1）, it is welded with the periphery of the clip 5 and is matched with annular
The fixed ear 6 of connecting hole number on flanging 4, is provided with the fixed ear 6 and connecting hole aperture one on circular fold 4 is a pair of
The through hole answered, is passed through by clamping screw 7 and locks the through hole of fixed ear 6 on the connecting hole and clip 5 of ring pipe 2.
The wiper block 3 is strip, and the top surface heap of the wiper block 3 is welded with the semi-cylindrical made of cemented carbide material
Arcwall face.
Ring pipe 2 is inserted on 1 periphery of centralizer body from 1 lower part of centralizer body, is stretched in centralizer body 1
Portion, the internal thread of ring pipe 2 together with the external screw thread on 1 periphery of centralizer body threaded engagement connection together, in ring pipe 2
Front band 5 is covered on 1 periphery of centralizer body where the side of circular fold 4（It is inserted in from 1 top of centralizer body）, it is circumferential
Clip 5 is adjusted, and by the connecting hole of the corresponding circular fold 4 of through-hole alignment one of each fixed ear 6 on clip 5, then
Passed through by clamping screw 7 and lock the through hole of fixed ear 6 on the connecting hole and clip 5 of ring pipe 2.When 3 serious wear of wiper block
When, clamping screw 7 is unclamped, ring pipe 2 is removed from centralizer body 1, changes righting of another band either with or without abrasion
The ring pipe 2 of block 3, repeats the process of above-mentioned installation ring pipe 2.
In addition, the wiper block 3 arranged on above-mentioned ring pipe 2 can be different specification size, to meet different petroleum drillings
Has equipment.
Above concrete technical scheme is only to illustrate the utility model, rather than its limitations.Although with reference to above-mentioned specific skill
The utility model is described in detail in art scheme, it will be understood by those of ordinary skill in the art that：It still can be right
Above-mentioned concrete technical scheme is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed or replace
Change, the essence of appropriate technical solution is departed from the spirit and scope of the utility model.
Claims (2)
1. a kind of detachable centralizer, including the centralizer body in cylinder, it is characterised in that：In the centralizer body
Portion is set with ring pipe on periphery, passes through threaded engagement connection, the outside of the ring pipe between the centralizer body and ring pipe
The axial arranged wiper block of three row is evenly equipped with tube wall, which has the circular fold outwards vertically bent,
It is provided with multiple, the circumferentially uniformly distributed connecting hole in direction on the circular fold, the centralizer body where above the ring pipe
So as to the structure of dismounting is set with clip on periphery, the connecting hole being matched with circular fold is welded with the periphery of the clip
The fixed ear of number, be provided with the fixed ear with the one-to-one through hole in connecting hole aperture on circular fold, by locking screw
Bolt passes through and locks the through hole of fixed ear on the connecting hole and clip of ring pipe.
2. detachable centralizer according to claim 1, it is characterised in that：The wiper block is strip, the wiper block
Top surface heap is welded with the semi-cylindrical arcwall face made of cemented carbide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721234111.4U CN207296905U (en) | 2017-09-25 | 2017-09-25 | A kind of detachable centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721234111.4U CN207296905U (en) | 2017-09-25 | 2017-09-25 | A kind of detachable centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207296905U true CN207296905U (en) | 2018-05-01 |
Family
ID=62439321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721234111.4U Active CN207296905U (en) | 2017-09-25 | 2017-09-25 | A kind of detachable centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207296905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441370A (en) * | 2018-10-23 | 2019-03-08 | 大庆宏富来电气设备制造有限公司 | A kind of centralizer of convenient and efficient dismounting |
-
2017
- 2017-09-25 CN CN201721234111.4U patent/CN207296905U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441370A (en) * | 2018-10-23 | 2019-03-08 | 大庆宏富来电气设备制造有限公司 | A kind of centralizer of convenient and efficient dismounting |
| CN109441370B (en) * | 2018-10-23 | 2020-12-08 | 大庆宏富来电气设备制造有限公司 | Centralizer convenient and fast to disassemble and assemble |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10669780B2 (en) | Whipstocking drill for ultra-short-radius well | |
| CN203847019U (en) | Limiting type hydraulic casing pipe straightening tool | |
| CN205840809U (en) | A kind of New Kind of Anti-Abrasion type stile | |
| CN207485358U (en) | Drive casing pipe running device in wild card coupling type top | |
| CN207296905U (en) | A kind of detachable centralizer | |
| CN101581203A (en) | Near-bit centralizer of riser pipe under simulated injection method | |
| CN103470185B (en) | A kind of casing pipe running device and casing job technique | |
| CN203925330U (en) | Righting drag reduction adapter | |
| CN208310706U (en) | A kind of anti-wear aluminium drill pipe | |
| CN109555500B (en) | Circulation passage switching tool for staged well washing of tail pipe well | |
| CN106639947A (en) | Large-scale fishing cylinder | |
| CN104963640A (en) | Horizontal well coiled tubing lock type hydraulic bit feeding and alarming system | |
| CN203114198U (en) | Arc rib elastic centralizer | |
| CN201437707U (en) | Anchor claw inbuilt multi-stage hydraulic cylinder type packer | |
| CN210127829U (en) | Drilling tool assembly of engineering drilling machine | |
| CN102251750B (en) | Holder | |
| CN202970573U (en) | Combined reducing expansion cone of expansion pipe | |
| CN207144839U (en) | A kind of tunnel rig short drill pipe | |
| CN203835295U (en) | Turnover type slips | |
| CN205577938U (en) | Packer packing element | |
| CN108625780B (en) | Eccentric positioning device suitable for radial drilling | |
| CN101457636A (en) | Reducing slip for tube fastener for oil tube | |
| CN205382887U (en) | A branch for oil drill pipe | |
| CN207526438U (en) | A kind of swing type power slip | |
| CN113123728A (en) | Sleeve, sleeve assembly and assembling method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |