CN104120985A - Novel sucker rod centralizing and paraffin scraping device - Google Patents
Novel sucker rod centralizing and paraffin scraping device Download PDFInfo
- Publication number
- CN104120985A CN104120985A CN201410328126.1A CN201410328126A CN104120985A CN 104120985 A CN104120985 A CN 104120985A CN 201410328126 A CN201410328126 A CN 201410328126A CN 104120985 A CN104120985 A CN 104120985A
- Authority
- CN
- China
- Prior art keywords
- wiper block
- center tube
- sucker rod
- oil
- block
- 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
- 238000007790 scraping Methods 0.000 title claims abstract description 12
- 239000012188 paraffin wax Substances 0.000 title abstract description 6
- 239000001993 wax Substances 0.000 abstract description 10
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000008021 deposition Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to the technical field of mechanical oil extraction, and belongs to a novel sucker rod centralizing and paraffin scraping device. The invention is designed for effectively solving the problems of vibration of a sucker rod string, abrasion of a rod pipe and wax deposition on the inner wall of an oil pipe, wherein an upper central pipe 1 and an upper centering block 2, a lower central pipe 3 and a lower centering block 4 are cast into a whole, and the upper central pipe 1 and the lower central pipe 3 are connected with a locking groove 5 through a locking block 7. The invention is mainly used for oil pumping wells in oil fields, and has the advantages of low cost, quick and convenient installation, good wax scraping effect, difficult axial movement, small resistance to oil pumping rods and oil, and the like.
Description
Technical field: the present invention relates to mechanical oil recovery technical field, belong to a kind of Novel sucker rod righting wax scraping apparatus.
Background technology: existing oil pumping rod centering device is mainly divided into roller class, column class and clip class.Wherein roller class and column class oil pumping rod centering device, be connected with sucker rod by screw thread, and centralizer, along sucker rod, play does not axially occur, but the cost of these two kinds of centralizers is higher, installs also inconvenient.Clip class oil pumping rod centering device reaches the object of the centralizer that is locked by its endoporus and the mutual Interference size of sucker rod external diameter, because it does not axially produce power, therefore axial locking power does not reach requirement, causes it more difficult fixing with respect to sucker rod, and play easily occurs.In addition, in oil pumping process, also need the wax on tubing wall to scrape off in time, avoid stopping up of oil channel, to guarantee normal production.And various centering paraffin scraper for sucker rod are all improvement of making based on above-mentioned centralizer principle basis, not only cost is high, and the complicated and easy problem that axial float occurs is installed.In order effectively to solve rod string eccentric wear and the serious problem of tube inner wall wax deposition, the present invention proposes a kind of Novel sucker rod righting wax scraping apparatus.
Summary of the invention: the object of the invention is development and can effectively carry out sucker rod stabilizing, reduce roofbolt vibrations, reduce rod tube wearing and tearing, simultaneously the respond well Novel sucker rod righting wax scraping apparatus of paraffin cutting.
The object of the invention is to realize by following technical solution: it is comprised of upper center tube, upper wiper block, lower center tube, lower wiper block, upper center tube comprises latch segment and has tongue-and-groove, and lower center tube comprises locking slot and has tenon; Wherein between upper center tube and upper wiper block, lower center tube and lower wiper block, be cast into one, between upper center tube and lower center tube, by latch segment, be connected with locking slot.
Upper wiper block is identical with lower wiper block structure, and both layouts of relatively standing upside down, wherein go up wiper block and be inversion teardrop shaped, and upper wiper block top is 180 ° of circular arcs, and bottom is 15～30 ° of circular arcs, between the two streamlined seamlessly transitting; Lower wiper block is teardrop shaped, and lower wiper block bottom is 180 ° of circular arcs, and top is 15～30 ° of circular arcs, and streamlined seamlessly transitting, forms streamline channel between upper wiper block and lower wiper block between the two.
Tongue-and-groove has the angle of inclination of 0.5～1 ° with respect to the center line of upper wiper block, lower wiper block.
Compared with the prior art, tool has the following advantages in the present invention:
1), the present invention can effectively solve rod string vibrations and rod tube wear problem, can effectively carry out sucker rod stabilizing.
2), by joggle mode, make the present invention avoid occurring axial float; Little to sucker rod and oil liquid resistance.
3), low, the quick for installation convenience of cost; 360 ° of comprehensive oil pipe inner wall paraffin scrapings, paraffin cutting is effective.
Accompanying drawing explanation: Fig. 1 is front view of the present invention; Fig. 2 is wiper block and lower center tube front view under the present invention; Fig. 3 is wiper block and lower center tube top view under the present invention; Fig. 4 is front view before the present invention and sucker rod assembling.
In figure: 1-upper center tube, the upper wiper block of 2-, 3-lower center tube, wiper block under 4-, 5-locking slot, 6-tenon, 7-latch segment, 8-tongue-and-groove, 9-sucker rod.
The specific embodiment: the present invention is further described below in conjunction with accompanying drawing, it is comprised of upper center tube 1, upper wiper block 2, lower center tube 3, lower wiper block 4, upper center tube 1 comprises latch segment 7 and has tongue-and-groove 8, and lower center tube 3 comprises locking slot 5 and has tenon 6; Wherein between upper center tube 1 and upper wiper block 2, lower center tube 3 and lower wiper block 4, be cast into one, between upper center tube 1 and lower center tube 3, by latch segment 7, be connected with locking slot 5.
Upper wiper block 2 is identical with lower wiper block 4 structures, and both layouts of relatively standing upside down, wherein go up wiper block 2 and be inversion teardrop shaped, and upper wiper block 2 tops are 180 ° of circular arcs, and bottom is 15～30 ° of circular arcs, between the two streamlined seamlessly transitting; Lower wiper block 4 is teardrop shaped, and lower wiper block 4 bottoms are 180 ° of circular arcs, and top is 15～30 ° of circular arcs, and streamlined seamlessly transitting, forms streamline channel between upper wiper block 2 and lower wiper block 4 between the two.
Tongue-and-groove 8 has the angle of inclination of 0.5～1 ° with respect to the center line of upper wiper block 2, lower wiper block 4.
On-the-spot application, at sucker rod, need righting position, first upper center tube 1 is installed from sucker rod 9 tops together with upper wiper block 2, then lower center tube 3 is installed from sucker rod bottom together with lower wiper block 4, the latch segment 7 of guaranteeing upper center tube 1 and lower center tube 3 inserts in locking slot 5, guarantee that tenon 6 and tongue-and-groove 8 closely cooperate simultaneously, thereby make righting wax scraping apparatus firmly hold sucker rod 9 tightly.
During use, upper wiper block 2 and lower wiper block 4 can with 360 ° of comprehensive contacts of tube inner wall, therefore, when sucker rod moves back and forth, the present invention, in righting, can strike off the wax deposition on tube inner wall.
Claims (3)
1. Novel sucker rod righting wax scraping apparatus, it is characterized in that: it is comprised of upper center tube (1), upper wiper block (2), lower center tube (3), lower wiper block (4), upper center tube (1) comprises latch segment (7) and has tongue-and-groove (8), and lower center tube (3) comprises locking slot (5) and has tenon (6); Wherein between upper center tube (1) and upper wiper block (2), lower center tube (3) and lower wiper block (4), be cast into one, between upper center tube (1) and lower center tube (3), by latch segment (7), be connected with locking slot (5).
2. Novel sucker rod righting wax scraping apparatus according to claim 1, it is characterized in that: upper wiper block (2) is identical with lower wiper block (4) structure, both layouts of relatively standing upside down, wherein go up wiper block (2) and be inversion teardrop shaped, upper wiper block (2) top is 180 ° of circular arcs, bottom is 15～30 ° of circular arcs, between the two streamlined seamlessly transitting; Lower wiper block (4) is teardrop shaped, and lower wiper block (4) bottom is 180 ° of circular arcs, and top is 15～30 ° of circular arcs, and streamlined seamlessly transitting, forms streamline channel between upper wiper block (2) and lower wiper block (4) between the two.
3. Novel sucker rod righting wax scraping apparatus according to claim 1, is characterized in that: tongue-and-groove (8) has the angle of inclination of 0.5～1 ° with respect to the center line of upper wiper block (2), lower wiper block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328126.1A CN104120985A (en) | 2014-07-04 | 2014-07-04 | Novel sucker rod centralizing and paraffin scraping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328126.1A CN104120985A (en) | 2014-07-04 | 2014-07-04 | Novel sucker rod centralizing and paraffin scraping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104120985A true CN104120985A (en) | 2014-10-29 |
Family
ID=51766595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410328126.1A Pending CN104120985A (en) | 2014-07-04 | 2014-07-04 | Novel sucker rod centralizing and paraffin scraping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104120985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729880A (en) * | 2018-04-17 | 2018-11-02 | 中国石油天然气股份有限公司 | Novel rod-type righting paraffin scraping device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995459A (en) * | 1988-06-16 | 1991-02-26 | Mabry John F | Rod guide/paraffin scraper |
| CN2423396Y (en) * | 2000-04-26 | 2001-03-14 | 孙敏 | Sucker rod |
| US6808019B1 (en) * | 2002-09-06 | 2004-10-26 | John F. Mabry | Sucker rod guide and paraffin scraper for oil wells |
| CN2937446Y (en) * | 2006-01-18 | 2007-08-22 | 山东九环石油机械有限公司 | Spacing rotation centering wax scraper |
-
2014
- 2014-07-04 CN CN201410328126.1A patent/CN104120985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995459A (en) * | 1988-06-16 | 1991-02-26 | Mabry John F | Rod guide/paraffin scraper |
| CN2423396Y (en) * | 2000-04-26 | 2001-03-14 | 孙敏 | Sucker rod |
| US6808019B1 (en) * | 2002-09-06 | 2004-10-26 | John F. Mabry | Sucker rod guide and paraffin scraper for oil wells |
| CN2937446Y (en) * | 2006-01-18 | 2007-08-22 | 山东九环石油机械有限公司 | Spacing rotation centering wax scraper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729880A (en) * | 2018-04-17 | 2018-11-02 | 中国石油天然气股份有限公司 | Novel rod-type righting paraffin scraping device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141029 |