CN203891792U - Abrasion-resistant centralizer structure of sucker rod of oil well - Google Patents
Abrasion-resistant centralizer structure of sucker rod of oil well Download PDFInfo
- Publication number
- CN203891792U CN203891792U CN201420261981.0U CN201420261981U CN203891792U CN 203891792 U CN203891792 U CN 203891792U CN 201420261981 U CN201420261981 U CN 201420261981U CN 203891792 U CN203891792 U CN 203891792U
- Authority
- CN
- China
- Prior art keywords
- end collar
- sucker rod
- wear
- guide structure
- centering guide
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an abrasion-resistant centralizer structure of a sucker rod of an oil well, and relates to a centralizer. The abrasion-resistant centralizer structure is characterized in that an end lantern ring (8) and another end lantern ring (11) are arranged on the sucker rod (7) at intervals, protruded rings (10) are respectively arranged on opposite surfaces of the end lantern ring (8) and the end lantern ring (11), two ends of a centralizing pipe (9) are fixedly connected onto the protruded rings (10) of the end lantern ring (8) and the end lantern ring (11), and the outer edge surface of the end lantern ring (8), the outer edge surface of the end lantern ring (11) and the outer edge surface of the centralizing pipe (9) are in clearance fit with the inner wall of a sucker pipe (2). The abrasion-resistant centralizer structure has the advantages that the two end lantern rings and the centralizing pipe are additionally arranged on the sucker rod, so that the sucker rod can be separated in the sucker pipe to the greatest extent, isolation effects can be realized by the lantern rings and the centralizing pipe while abrasion-resistant effects are also realized by the lantern rings and the centralizing pipe, and the service life of the sucker rod can be effectively prolonged.
Description
[technical field]
The utility model relates to a kind of centralizer, especially relates to a kind of wear-resisting centering guide structure of well rod.
[background technology]
Known, sucker rod is being brought into play effect greatly in the oil producing operation in oil field, the joint length of sucker rod is conventionally between 6 to 8 meters, material is generally the high-carbon steel plating hard chromium on surface that intensity is higher, sucker rod is used " to be had certain thickness connecting pipe hoop " and coupled together one by one by screw thread hoop or plug-in type centralizer and is extended on the piston at oilbearing stratum place always in oil pick-up tube, sucker rod length after connection is in about km to two km, the darkest can reach more than 3,000 meters or more than; With time utilize the reciprocating motion of sucker rod to realize pump oil object; In view of the operating principle of sucker rod, sucker rod is a kind of easily worn part, and when the reciprocating motion of sucker rod, the centralizer of sucker rod is also being synchronizeed and rubbed with oil pick-up tube, so the wear problem of sucker rod is the technical barrier that can sucker rod use for a long time always; Through the existing comparatively approaching patent of retrieval, find, existing centralizer structure mostly rests on and on sucker rod, increases the structure of wear-resistant sleeve and realize wear-resisting object, the chief drawback is that centralizer can not do is too much for this wear-resisting mode, so the inclination of sucker rod self causes after centralizer wearing and tearing the sucker rod oil pick-up tube of just can wearing and tearing simultaneously; According to the domestic statistics for oil field, 35% left and right that oil pick-up tube wearing and tearing account for the total maintenance capacity in oil field, maintenance cost is high.
Documents:
Chinese patent; Centralizer for sucker rod; Publication number CN2809193Y; Open day on August 23rd, 2006;
Chinese patent; Anti-eccentric wear centering device used for automatic correcting combined type pumping rod; Publication number CN201391247Y; Open day on January 7th, 2010;
Chinese patent; Self-lubricating same-curvature ceramic composite sucker rod centralizer; Publication number CN102278079A; Open day on December 14th, 2011;
Chinese patent; Multifunctional centering guide increases oily device; Publication number CN103256012A; Open day on August 21st, 2013;
Chinese patent; Horizontal well operation sand washing righting guiding device; Publication number CN203239247U; Open day on October 16th, 2013.
[summary of the invention]
In order to overcome the deficiency in background technology, the utility model discloses a kind of wear-resisting centering guide structure of well rod, by increase one end collar, the other end collar and righting pipe on sucker rod, make sucker rod in oil pick-up tube, obtain maximized interval, in the time of the collar of the present utility model and righting pipe self carrying buffer action, bear again wear-resisting effect, obtaining effective prolongation of sucker rod useful life.
For realizing goal of the invention of the present utility model, the utility model adopts following technical scheme:
A kind of wear-resisting centering guide structure of well rod, comprise sucker rod, one end collar, the other end collar and righting pipe, on sucker rod, be arranged at intervals with one end collar, the other end collar, on the opposite face of described one end collar, the other end collar, be respectively equipped with convex hole, the two ends of righting pipe are fixedly connected with on the convex hole of the at one end collar, the other end collar, the outer edge surface of one end collar, the other end collar and righting pipe and the inwall matched in clearance of oil pick-up tube.
The wear-resisting centering guide structure of described well rod, the endoporus of described one end collar, the other end collar coordinates with rod clearance.
The wear-resisting centering guide structure of described well rod, the convex hole arranging on described one end collar, other end collar opposite face is arranged on the ring surface middle part of described one end collar, the other end collar, the T-shaped structure of section; Or the ring surface that convex hole is arranged on described one end collar, the other end collar is near endoporus place, the L-shaped structure of section.
The wear-resisting centering guide structure of described well rod is interval with protruding ring on the sucker rod between described one end collar, the other end collar.
The wear-resisting centering guide structure of described well rod, described one end collar, the other end collar and between be provided with righting anchor ear between protruding ring on sucker rod.
The wear-resisting centering guide structure of described well rod, is provided with righting anchor ear on the sucker rod outside described one end collar, the other end collar.
The wear-resisting centering guide structure of described well rod, the sucker rod between described spaced protruding ring is provided with annular protrusion post, on the outer edge surface of described annular protrusion post, is enclosed with supporting positive cover.
The wear-resisting centering guide structure of described well rod, is provided with at the two ends of sucker rod and connects and spacing righting anchor ear or stop.
Owing to adopting technical scheme as above, the utlity model has following beneficial effect:
The wear-resisting centering guide structure of well rod described in the utility model, by increase one end collar on sucker rod, the other end collar and righting pipe, make sucker rod in oil pick-up tube, obtain maximized interval, the utility model is the collar at one end, after the other end collar and righting pipe may wear to a certain degree, righting anchor ear on sucker rod, supporting positive cover on annular protrusion post continues to play a role, the utility model is by one end collar, the other end collar and righting pipe and righting anchor ear, supporting positive cover forms multilayer protection system, obtained effective prolongation of sucker rod useful life, in addition, when sucker rod is worked, because the inner centralizer of righting pipe and the frictional force between righting pipe are less than the frictional force between righting pipe and oil pick-up tube, making does not have relative motion, can oil pick-up tube be produced and be worn and torn hardly between righting pipe and oil pick-up tube, thereby has extended the life-span of oil pick-up tube, wherein sucker rod, one end collar, the other end collar, righting pipe, righting anchor ear and supporting positive cover are preferably used external surface to have tungsten alloy coating " tungsten based amorphous state alloy ", or external surface is coated with ceramic coating, also or in surface spraying engineering plastic alloy coating, by coating, can effectively improve whole antiseptic property and the anti-wear performance of sucker rod, effectively extend sucker rod application life.
[accompanying drawing explanation]
Fig. 1 is sucker rod of the present utility model and oil pick-up tube fit structure schematic diagram;
Fig. 2 is the first example structure schematic diagram of the present utility model;
Fig. 3 is the second example structure schematic diagram of the present utility model;
Fig. 4 is one end of the present utility model collar the first example structure schematic diagram;
Fig. 5 is one end of the present utility model collar the second example structure schematic diagram;
In figure: 1, righting anchor ear; 2, oil pick-up tube; 3, oil well; 4, protruding ring; 5, annular protrusion post; 6, supporting positive cover; 7, sucker rod; 8, one end collar; 9, righting pipe; 10, convex hole; 11, the other end collar; 12, endoporus.
[specific embodiment]
By the following examples, can explain in more detail the utility model, open the purpose of this utility model is intended to protect all changes and improvements within the scope of the utility model, and the utility model is not limited to the following examples;
The wear-resisting centering guide structure of the well rod described in 1～5 by reference to the accompanying drawings, comprise sucker rod 7, one end collar 8, the other end collar 11 and righting pipe 9, on sucker rod 7, be arranged at intervals with one end collar 8, the other end collar 11, described one end collar 8, endoporus 12 and sucker rod 7 matched in clearance of the other end collar 11, described one end collar 8, on the opposite face of the other end collar 11, be respectively equipped with convex hole 10, the two ends of righting pipe 9 are fixedly connected with the at one end collar 8, on the convex hole 10 of the other end collar 11, one end collar 8, the inwall matched in clearance of the outer edge surface of the other end collar 11 and righting pipe 9 and oil pick-up tube 2.
Further, by reference to the accompanying drawings 2,3,4 and 5, described one end collar 8, the other end collar 11 are same structure, but while using, the convex hole 10 of one end collar 8, the other end collar 11 is relative, in attached Figure 4 and 5, provided the ring surface middle part that the convex hole 10 arranging on one end collar 8, the other end collar 11 opposite faces is arranged on described one end collar 8, the other end collar 11, the T-shaped structure of section; Or the ring surface that convex hole 10 is arranged on described one end collar 8, the other end collar 11 is near endoporus 12 places, the L-shaped structure of section.
In accompanying drawing 2 and 3, on the sucker rod 7 between described one end collar 8, the other end collar 11, be interval with protruding ring 4, described one end collar 8, the other end collar 11 and between be provided with righting anchor ear 1 between protruding ring 4 on sucker rod 7; Sucker rod 7 between described spaced protruding ring 4 is provided with annular protrusion post 5, is enclosed with supporting positive cover 6 on the outer edge surface of described annular protrusion post 5; In order further to increase antiwear property, on the sucker rod 7 outside described one end collar 8, the other end collar 11, be provided with righting anchor ear 1.
Implement the wear-resisting centering guide structure of well rod described in the utility model, during use, first righting pipe 9 is enclosed within to annular protrusion post 5 outsides of sucker rod 7, then by one end collar 8, the other end collar 11 is enclosed within two protruding ring 4 outsides of sucker rod 7 " according to oil well 3 degree of depth and the gradient collar 8 at one end, between the other end collar 11 and two protruding rings 4, righting anchor ear 1 is set, by described righting anchor ear 1, further increase antiwear property ", use the two ends of righting pipe 9 firmly to connect one end collar 8, convex hole 10 outer edge surfaces of the other end collar 11, form the centralizing system of a set of sucker rod 7, the screw thread that wherein joint of sucker rod 7 can be by righting anchor ear 1 or supporting positive cover 6 or stop or utilize plug in construction to connect, sucker rod 7 connections that described many covers have centralizing system penetrate after the oil pick-up tube 2 of oil well 3, just can carry out operation.
The utility model does not describe part in detail for prior art.
Claims (8)
1. the wear-resisting centering guide structure of a well rod, comprise sucker rod (7), one end collar (8), the other end collar (11) and righting pipe (9), it is characterized in that: on sucker rod (7), be arranged at intervals with one end collar (8), the other end collar (11), described one end collar (8), on the opposite face of the other end collar (11), be respectively equipped with convex hole (10), the two ends of righting pipe (9) are fixedly connected with the at one end collar (8), on the convex hole (10) of the other end collar (11), one end collar (8), the inwall matched in clearance of the outer edge surface of the other end collar (11) and righting pipe (9) and oil pick-up tube (2).
2. the wear-resisting centering guide structure of well rod according to claim 1, is characterized in that: the endoporus (12) of described one end collar (8), the other end collar (11) and sucker rod (7) matched in clearance.
3. the wear-resisting centering guide structure of well rod according to claim 1, it is characterized in that: the convex hole (10) arranging on described one end collar (8), the other end collar (11) opposite face is arranged on the ring surface middle part of described one end collar (8), the other end collar (11), the T-shaped structure of section; Or the ring surface that convex hole (10) is arranged on described one end collar (8), the other end collar (11) locates near endoporus (12), the L-shaped structure of section.
4. the wear-resisting centering guide structure of well rod according to claim 1, is characterized in that: on the sucker rod (7) between described one end collar (8), the other end collar (11), be interval with protruding ring (4).
5. the wear-resisting centering guide structure of well rod according to claim 1, is characterized in that: described one end collar (8), the other end collar (11) and between be provided with righting anchor ear (1) between protruding ring (4) on sucker rod (7).
6. the wear-resisting centering guide structure of well rod according to claim 1, is characterized in that: on the sucker rod (7) outside described one end collar (8), the other end collar (11), be provided with righting anchor ear (1).
7. the wear-resisting centering guide structure of well rod according to claim 1, it is characterized in that: the sucker rod (7) between described spaced protruding ring (4) is provided with annular protrusion post (5), is enclosed with supporting positive cover (6) on the outer edge surface of described annular protrusion post (5).
8. the wear-resisting centering guide structure of well rod according to claim 1, is characterized in that: at the two ends of sucker rod (7), be provided with and connect and spacing righting anchor ear (1) or stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261981.0U CN203891792U (en) | 2014-05-20 | 2014-05-20 | Abrasion-resistant centralizer structure of sucker rod of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261981.0U CN203891792U (en) | 2014-05-20 | 2014-05-20 | Abrasion-resistant centralizer structure of sucker rod of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891792U true CN203891792U (en) | 2014-10-22 |
Family
ID=51718208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261981.0U Expired - Fee Related CN203891792U (en) | 2014-05-20 | 2014-05-20 | Abrasion-resistant centralizer structure of sucker rod of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047552A (en) * | 2014-05-20 | 2014-09-17 | 石东海 | Wear-resisting centralizer structure of sucker rod of oil well |
-
2014
- 2014-05-20 CN CN201420261981.0U patent/CN203891792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047552A (en) * | 2014-05-20 | 2014-09-17 | 石东海 | Wear-resisting centralizer structure of sucker rod of oil well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203891792U (en) | Abrasion-resistant centralizer structure of sucker rod of oil well | |
| CN104047552A (en) | Wear-resisting centralizer structure of sucker rod of oil well | |
| CN203978434U (en) | A kind of pick | |
| CN202645461U (en) | Sucker rod antifriction coupling | |
| CN210317729U (en) | Pump center pull rod, piston assembly and drilling pump | |
| CN208981971U (en) | A kind of head protective device coating sucker rod | |
| CN210049841U (en) | Wear-resisting sucker rod centralizer | |
| CN102720441A (en) | Accessory used for guiding sucker rod | |
| CN208347713U (en) | A kind of geological prospecting articulated joint for screw drilling rod sealing shroud | |
| CN202039791U (en) | Built-in fixed sucker rod centralizer | |
| CN202510043U (en) | Downhole oil production device with non-metallic sucker rod | |
| CN201794542U (en) | Inlaid sealing ring | |
| CN102312657A (en) | High-temperature-resistant and wear-resistant hollow rod centering guide | |
| CN204253356U (en) | New-type mortar pump liner | |
| CN202040074U (en) | Multi-functional oil-well pump for soft sealing short pump cylinder | |
| CN204371131U (en) | Modified hollow sucker rod centralizer | |
| CN204371180U (en) | Bumper jar | |
| CN204782826U (en) | Sucker rod rotary apparatus | |
| CN204646640U (en) | A kind of concrete piston | |
| CN203161110U (en) | Oil pipe connector used for bailing well | |
| CN203867479U (en) | Anti-attrition righting sucker rod | |
| CN210660057U (en) | Sand blower for oil exploitation | |
| CN202970520U (en) | Down-hole docking assembly | |
| CN212958551U (en) | Packer with reliable performance and good sealing effect | |
| CN202001283U (en) | Strong magnetic rod oil well pump protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150520 |
|
| EXPY | Termination of patent right or utility model |