CN101446182A - Pumping-improvement centralizer of pumping rod - Google Patents
Pumping-improvement centralizer of pumping rod Download PDFInfo
- Publication number
- CN101446182A CN101446182A CNA2008101586236A CN200810158623A CN101446182A CN 101446182 A CN101446182 A CN 101446182A CN A2008101586236 A CNA2008101586236 A CN A2008101586236A CN 200810158623 A CN200810158623 A CN 200810158623A CN 101446182 A CN101446182 A CN 101446182A
- Authority
- CN
- China
- Prior art keywords
- pumping
- centralizer
- pawl
- centralizer body
- centralizing
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a pumping-improvement centralizer of pumping rod, comprising a central rod; wherein, the two ends of the central rod are provided with joints; the central rod is provided with a first centralizing body and a second centralizing body; the first centralizing body comprises three first centralizing claws; the second centralizing body comprises three second centralizing claws; when the pumping rod moves downwards, the first centralizing body moves upwards under the action of friction force, the first centralizing body and the second centralizing body are separated, and crude oil flows upwards by a clearance between the first centralizing claw and the second centralizing claw; when the pumping rod moves upwards, the first centralizing body moves downwards under the action of friction force, and the first centralizing body slides into the clearance of the second centralizing body to form a piston; when the pumping rod moves upwards and downwards, the first centralizing body and the second centralizing body can have the centralization function and prevent the friction between the pumping rod and the pumping pipe; when the pumping rod moves upwards, the pressure difference of the upper pressure and the lower pressure of the piston can be reduced and the pumping efficiency is improved.
Description
Technical field
The present invention relates to the oil production equipment in a kind of petroleum industry, particularly a kind of pumping-improvement centralizer of pumping rod.
Background technology
At present, the oil recovery extensive use beam hanger pump in oil field, the beam hanger pump comprises oil pick-up tube, sucker rod, plunger and pump barrel, the eccentric wear of sucker rod and oil pick-up tube and the wearing and tearing of plunger are the main cause that the beam hanger pump breaks down all the time, the patent No. is that 03271902.7 utility model patent discloses a kind of oil pick-up tube, sucker rod is prevented the eccentric wear pair, this abrasionproof pair is by rod collar, go up locking cap, the abrasionproof bar, the abrasionproof lining, centralizer body, hold-doun nut, down locking cap is formed, rod collar, go up locking cap and abrasionproof bar top thread connection, rod collar is on last locking cap, the abrasionproof lining is sleeved on the abrasionproof bar, abrasionproof sleeve outer surface upper diameter is big, lower diameter is little, there is screw thread the bottom, centralizer body is sleeved on the minor diameter of abrasionproof sleeve outer surface bottom, hold-doun nut and abrasionproof lining bottom thread connection, make the abrasionproof lining, centralizer body, hold-doun nut is assembled into one, and can on the abrasionproof bar, slide, locking cap connects with abrasionproof bar lower thread down, rod collar top connects sucker rod, abrasionproof bar lower thread connects sucker rod, though the secondary friction that can reduce oil pick-up tube and sucker rod of this kind abrasionproof, but, effect to the wearing and tearing that prevent plunger is undesirable, plunger wear can reduce the efficient of oil extraction pump, and the principal element of the length of pump detection period is the pump leakage amount, the size of wastage depend primarily on gap between plunger and the pump barrel and the plunger size of pressure reduction up and down, the wearing and tearing of plunger also are directly proportional with pressure reduction, pressure reduction not only can improve the efficient of pump about managing to reduce plunger, and can prolong the application life of pump.
Summary of the invention
The technical problem to be solved in the present invention is at above problem, provide a kind of and can prevent sucker rod and the eccentric wear of taking out oil pick-up tube, reduce plunger up and down pressure reduction, heighten the pumping-improvement centralizer of pumping rod of pumping efficiency.
For addressing the above problem, the present invention adopts following technical scheme: pumping-improvement centralizer of pumping rod, comprise center-pole, and described center-pole two ends are provided with joint, and described center-pole is provided with first centralizer body and second centralizer body.
As a kind of prioritization scheme, described second centralizer body is fixedlyed connected with center-pole, and described first centralizer body can slide on center-pole, and described first centralizer body is positioned at the top of second centralizer body.
As a kind of prioritization scheme, described first centralizer body comprises that several first set upright pawl, and described first sets upright the pawl upper end is provided with first sleeve.
As a kind of prioritization scheme, described second centralizer body comprises second sleeve, and described second sleeve is provided with several and second sets upright pawl.
A kind of concrete prioritization scheme, described first sets upright pawl and second quantity of setting upright pawl is respectively three, and described first sets upright pawl and second sets upright pawl and is staggered at circumferencial direction.
A kind of concrete prioritization scheme, described first two ends of setting upright pawl are provided with 15 ° chamfering, and described second two ends of setting upright pawl are provided with 15 ° chamfering, and described first sets upright pawl and second, and to set upright the horizontal section of pawl be fan-shaped.
A kind of concrete prioritization scheme, described first sets upright pawl may slide into three second and sets upright in the space that pawl forms each other.
A kind of concrete prioritization scheme, described center-pole upper end is provided with limited block.
A kind of concrete prioritization scheme, described center-pole two end joints are nipple.
A kind of concrete prioritization scheme, described center-pole lower end is provided with spanner portion.
Beneficial effect: the present invention adopts technique scheme, have the following advantages: because center-pole is provided with first centralizer body and second centralizer body, first centralizer body comprises that three first are set upright pawl, second centralizer body comprises that three second are set upright pawl, when sucker rod moves downward, first centralizer body moves upward under the effect of frictional force, make first centralizer body and second centralizer body separately, crude oil can upwards flow by three first gap and three second spaces of setting upright between the pawl of setting upright between the pawl, when sucker rod moves upward, first centralizer body moves downward under the effect of frictional force, making three of first centralizer body set upright pawl slides into three second of second centralizer body and sets upright in the space that claw type becomes, first centralizer body and second centralizer body form a plunger, the crude oil on first centralizer body and the second centralizer body top can not be flowed downward, when sucker rod moves upward and move downward, first centralizer body and second centralizer body can play centralizing function, prevent sucker rod and taken out friction between the oil pick-up tube, when sucker rod moves upward, because first centralizer body and second centralizer body form a plunger, so, can play and reduce the plunger effect of pressure reduction up and down, improve pumping efficiency.
Below in conjunction with drawings and Examples the present invention is elaborated.
Description of drawings
Accompanying drawing 1 is the structural representation of pumping-improvement centralizer of pumping rod among the present invention;
Accompanying drawing 2 is structural representations of first centralizer body in the embodiment of the invention;
Accompanying drawing 3 is structural representations of A-A section in the accompanying drawing 1;
Accompanying drawing 5 is structural representations that first centralizer body is arranged in the space of second centralizer body among the present invention.
The specific embodiment
As shown in Figure 1, pumping-improvement centralizer of pumping rod comprises center-pole 1, and center-pole 1 two ends are provided with joint, and center-pole 1 is provided with first centralizer body 4 and second centralizer body 5.
Shown in accompanying drawing 2, accompanying drawing 3, first centralizer body 4 comprises that setting upright pawl 41, the first for three first sets upright pawl 41 upper ends and be provided with first sleeve 42.
As shown in Figure 4, second centralizer body 5 comprises that second sleeve, 52, the second sleeves 52 are provided with three second and set upright pawl 51.
Set upright pawl 41 and three second for three first and set upright pawl 51 staggered overlap joints, first sets upright pawl 41 and second, and to set upright the horizontal section of pawl 51 be fan-shaped.
As shown in Figure 5, set upright pawl 41 and may slide into three second and set upright in pawl 51 space each other for three first.
Three first two ends of setting upright pawl 41 are provided with 15 ° chamfering, and three second two ends of setting upright pawl 51 are provided with 15 ° chamfering.
Center-pole 1 upper end is provided with limited block 2, and limited block 2 is threaded with center-pole 1, and limited block 2 is provided with holding screw 3, the sliding distance of limited block 2 restrictions first centralizer body 4.
1 liang of end joint of center-pole is a nipple, and center-pole 1 lower end is provided with spanner portion, helps being connected of center-pole 1 and sucker rod.
When sucker rod moves downward, first centralizer body 4 moves upward under the effect of frictional force, make first centralizer body 4 and second centralizer body 5 separately, crude oil can upwards flow by three first gap and three second spaces of setting upright between the pawl 51 of setting upright between the pawl 41, at this moment, first centralizer body 4 and 5 of second centralizer bodies play centralizing function.
When sucker rod moves upward, first centralizer body 4 moves downward under the effect of frictional force, making three of first centralizer body 4 set upright pawl 41 slides into three second of second centralizer body 5 and sets upright in the space that pawl 51 forms, first centralizer body 4 and second centralizer body 5 form a plunger, the crude oil on first centralizer body 4 and second centralizer body, 5 tops can not be flowed downward, at this moment, first centralizer body 4 and second centralizer body 5 promptly play centralizing function, also play and reduce the plunger effect of pressure reduction up and down, improved pumping efficiency.
Claims (10)
1, pumping-improvement centralizer of pumping rod comprises center-pole (1), and described center-pole (1) two ends are provided with joint, it is characterized in that: described center-pole (1) is provided with first centralizer body (4) and second centralizer body (5).
2, pumping-improvement centralizer of pumping rod as claimed in claim 1, it is characterized in that: described second centralizer body (5) is fixedlyed connected with center-pole (1), described first centralizer body (4) can be gone up at center-pole (1) and slide, and described first centralizer body (4) is positioned at the top of second centralizer body (5).
3, pumping-improvement centralizer of pumping rod as claimed in claim 2 is characterized in that: described first centralizer body (4) comprises that several first set upright pawl (41), and described first sets upright pawl (41) upper end is provided with first sleeve (42).
4, pumping-improvement centralizer of pumping rod as claimed in claim 2 is characterized in that: described second centralizer body (5) comprises second sleeve (52), and described second sleeve (52) is provided with several and second sets upright pawl (51).
5, as claim 3 or 4 described pumping-improvement centralizer of pumping rod, it is characterized in that: described first sets upright pawl (41) and second sets upright the quantity of pawl (51) and is respectively three, and described first sets upright pawl (41) and second sets upright pawl (51) and be staggered at circumferencial direction.
6, pumping-improvement centralizer of pumping rod as claimed in claim 5, it is characterized in that: described first two ends of setting upright pawl (41) are provided with 15 ° chamfering, described second two ends of setting upright pawl (51) are provided with 15 ° chamfering, and described first sets upright pawl (41) and second, and to set upright the horizontal section of pawl (51) be fan-shaped.
7, pumping-improvement centralizer of pumping rod as claimed in claim 6 is characterized in that: described first sets upright pawl (41) may slide into three second and sets upright in the space that pawl (51) forms each other.
8, pumping-improvement centralizer of pumping rod as claimed in claim 1 is characterized in that: described center-pole (1) upper end is provided with limited block (2).
9, pumping-improvement centralizer of pumping rod as claimed in claim 1 is characterized in that: described center-pole (1) two end joint is a nipple.
10, pumping-improvement centralizer of pumping rod as claimed in claim 9 is characterized in that: described center-pole (1) lower end is provided with spanner portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101586236A CN101446182A (en) | 2008-11-04 | 2008-11-04 | Pumping-improvement centralizer of pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101586236A CN101446182A (en) | 2008-11-04 | 2008-11-04 | Pumping-improvement centralizer of pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101446182A true CN101446182A (en) | 2009-06-03 |
Family
ID=40742038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101586236A Pending CN101446182A (en) | 2008-11-04 | 2008-11-04 | Pumping-improvement centralizer of pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101446182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003150B (en) * | 2009-08-28 | 2013-05-08 | 濮阳市信宇石油机械化工有限公司 | Convex counterweight centralizer for pumping unit |
-
2008
- 2008-11-04 CN CNA2008101586236A patent/CN101446182A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003150B (en) * | 2009-08-28 | 2013-05-08 | 濮阳市信宇石油机械化工有限公司 | Convex counterweight centralizer for pumping unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204326985U (en) | A kind of coiled tubing speed tubing string | |
| CN104358524A (en) | Coiled tubing speed pipe column and liquid draining and gas collecting method | |
| CN103541664B (en) | Hydraulic feedback formula sucker rod weight increasing device | |
| CN202531051U (en) | Hydraulic casing centralizer | |
| CN101446182A (en) | Pumping-improvement centralizer of pumping rod | |
| CN201288517Y (en) | Sucking assistant centralizer for sucker rod | |
| CN202081847U (en) | Tool for collecting junk at bottom of well | |
| CN101839115A (en) | Centralizer depending on well crude oil lubrication | |
| CN102200003A (en) | Pumping rod oil-increasing rotary wax scraping centralizer | |
| CN105715523B (en) | The anti-sand setting small displacement oil well pump of self-cleaning type | |
| CN202767905U (en) | Eccentric wear resistant sucker-rod string | |
| CN200952463Y (en) | Hanging immersed thickened oil pump | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN102425396A (en) | Sucker-rod pump oil extraction system for oil well | |
| CN201554425U (en) | Position-limiting inverted valve | |
| CN101539133B (en) | Feedback type oil-well pump | |
| CN201671601U (en) | Liquid lifting pumping aid for pumping well | |
| CN202531415U (en) | Phi 25mm small displacement solid plunger oil-well pump | |
| CN210798932U (en) | Pumping-assisting device for sucker rod of oil production well | |
| CN201025260Y (en) | Deviated friction prevention and heavy oil sucker rod | |
| CN102839925A (en) | Centralizer lubricated by well fluid | |
| CN204003389U (en) | Multistage elastic packing three plunger horizontal well oil pumps | |
| CN102839924A (en) | Sucker rod centralizer lubricated by high-pressure well fluid | |
| CN202954764U (en) | Hydraulic anchor | |
| CN103256012A (en) | Multifunctional centralizing and oil increasing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Open date: 20090603 |