CN201246117Y - Bias-wearing-proof eddy flow centralizer - Google Patents
Bias-wearing-proof eddy flow centralizer Download PDFInfo
- Publication number
- CN201246117Y CN201246117Y CNU2008200906266U CN200820090626U CN201246117Y CN 201246117 Y CN201246117 Y CN 201246117Y CN U2008200906266 U CNU2008200906266 U CN U2008200906266U CN 200820090626 U CN200820090626 U CN 200820090626U CN 201246117 Y CN201246117 Y CN 201246117Y
- Authority
- CN
- China
- Prior art keywords
- eccentric wear
- eddy flow
- centralizer
- pump
- sand
- 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
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
An eccentric wear prevention swirl centralizer mainly solves the problems of eccentric wear and sand sticking produced during the operation of an oil well pump, and is characterized in that a plurality of diversion trenches (2) with a right spiral structure are formed on a body (1); the number of diversion trenches (2) is four; and the included angle Beta between a diversion trench (2) and the body (1) is 20 to 30 DEG. During oil pumping of a long-plug ring-seal and sand-prevention oil-well pump, the centralizer not only performs the function of pump centralization and eccentric wear prevention, but also provides a good annular channel and performs a function of swirl desanding; and as the bump adopts an integral structure, the probability of components fallout is eliminated in the design, and the occurrence of down-hole junk is prevented, thereby reducing the manufacture costs.
Description
Technical field
The utility model relates to a kind of downhole tool in the oil recovery field, oil field, especially a kind of anti-eccentric wear eddy flow centralizer.
Background technology
In prior art, the oil well pump that plays anti-eccentric wear effect is the structure that changes standing valve, increase lifting rod, making it pass ring-like standing valve enters under the pump, oil well pump is in down stroke like this, just can not be subjected to the high pressure resistance that the intraluminal fluid post makes progress and the pressure that produces, to balance the liquid on-way resistance in the descending process of rod string, reach the purpose of anti-eccentric wear, but this structure oil well pump only limits to common gap pump, and annular standing valve complex structure, processing difficulties, and in containing the sand oil well, be very easy to the sand card.And the oil well pump of sand control generally is to open anti-sand launder or at the plunger upper part increase cup of strike-ofing, not from changing pump structure in essence, so promptly can't fundamentally prevent eccentric wear, sand controlling result is very little again on plunger.
The utility model content
Produce eccentric wear and sand card phenomenon in the oil well pump running in order to solve, the utility model provides a kind of anti-eccentric wear eddy flow centralizer, this centralizer is in long plug ring envelope sand-proof oil-well pump oil pumping process, pump is promptly produced the anti-eccentric wear effect of setting upright, good annular space runner is provided again, plays eddy flow desanding effect.
The technical solution of the utility model is: a kind of anti-eccentric wear eddy flow centralizer comprises cylindrical body and guiding gutter, uniform some guiding gutters that are right-hand screw shape structure on body.
Described guiding gutter becomes 20 °～30 ° angle for several and with body axis.
The beneficial effects of the utility model are: because the design gaps of oil pumping rod centering device is adopted in the gap of the external diameter of this centralizer and tube inner wall, guarantee to set upright the effect of anti-eccentric wear effectively; Guiding gutter is right-hand screw shape structure on cylindrical body, and on circumference, evenly distribute, and become certain included angle in body axis, form helical flow path, in well liquid pumping process, the helical flow path eddy flow that the straight line fluid that travelling valve is pumped passes through the eddy flow erection device rises and generation hoop eddy flow field, and the hoop eddy flow field produces shearing stress, thereby sand grains in the rotational flow separation well liquid is beneficial to and washes away and discharge.Because this pump adopts overall structure, has eliminated the possibility that parts are scattered in design, has avoided the generation of trouble of lost tool in hole, thereby has reduced cost of production.
Description of drawings
Fig. 1 is anti-eccentric wear eddy flow centralizer front view
Fig. 2 is anti-eccentric wear eddy flow centralizer vertical view
1-cylindrical body 2-guiding gutter 3-chamfering α
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this centralizer comprises cylindrical body 1 and guiding gutter 2, uniform 4 guiding gutters 2 that are right-hand screw shape structure on the body 1, guiding gutter 2 becomes 20 °～30 ° angle β with body 1 axis, also can determine guiding gutter quantity according to actual needs, cylindrical body 1 length 260mm-350mm.During operation, the bottom connects the oil pump plunger piston upper traveling valve cage, and top directly is connected with sucker rod, has replaced sucker rod substitute, for oil well pump rises, well operations provides very big convenience down; In order to reduce the resistance between guiding gutter and well liquid, the guiding gutter two ends are designed to the big chamfering α 3 of drainage type, in well liquid pumping process, the helical flow path eddy flow that the straight line fluid that travelling valve is pumped passes through the eddy flow centralizer rises and generation hoop eddy flow field, the hoop eddy flow field has increased additional pressure and shearing stress for the seal assembly top sub, thereby sand grains in the rotational flow separation well liquid, be beneficial to and wash away, discharge the sand setting in the upper pump head, make the grains of sand directly enter the sand setting tail pipe by pump exocoel cross head, efficiently solve of the wearing and tearing of harmful silt particle to plunger and pump barrel, eccentric wear or sand card problem, the pump efficiency and the application life of fundamentally having improved oil well pump.
Claims (3)
1, a kind of anti-eccentric wear eddy flow centralizer comprises cylindrical body (1) and guiding gutter (2), it is characterized in that: have some guiding gutters (2) that are right-hand screw shape structure on body (1).
2, anti-eccentric wear eddy flow centralizer according to claim 1, it is characterized in that: guiding gutter (2) is 4.
3, anti-eccentric wear eddy flow centralizer according to claim 1, it is characterized in that: angle (β) is 20 °～30 ° between the axis of guiding gutter (2) and body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200906266U CN201246117Y (en) | 2008-08-07 | 2008-08-07 | Bias-wearing-proof eddy flow centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200906266U CN201246117Y (en) | 2008-08-07 | 2008-08-07 | Bias-wearing-proof eddy flow centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246117Y true CN201246117Y (en) | 2009-05-27 |
Family
ID=40729937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200906266U Expired - Fee Related CN201246117Y (en) | 2008-08-07 | 2008-08-07 | Bias-wearing-proof eddy flow centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246117Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863522A (en) * | 2014-12-10 | 2015-08-26 | 梁伟成 | Oil well pump wandering-type anti-deviation grinding device |
-
2008
- 2008-08-07 CN CNU2008200906266U patent/CN201246117Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863522A (en) * | 2014-12-10 | 2015-08-26 | 梁伟成 | Oil well pump wandering-type anti-deviation grinding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11506033B2 (en) | Oil extraction and gas production method capable of in-situ sand control and removal by downhole hydraulic lift | |
| CN102094617A (en) | Pitch-variable spiral gas anchor | |
| CN201554704U (en) | Jet pump | |
| CN201246117Y (en) | Bias-wearing-proof eddy flow centralizer | |
| CN202007660U (en) | Umbrella-shaped screw gas and sand anchor | |
| CN201321967Y (en) | Rotating plunger oil-well pump with actuating cylinder | |
| CN108916010B (en) | A kind of rotation vortex oil-well pump | |
| CN2931780Y (en) | Down-hole oil-water separator | |
| CN102425396B (en) | A kind of sucker-rod pump oil extraction system for oil well | |
| CN110617203B (en) | Pump cylinder inverted suspension up-down stroke liquid inlet and outlet oil pump | |
| CN108868696B (en) | Oil production pipe | |
| CN209875142U (en) | Oil-water separation system under pumping and production-injection integrated pump well | |
| CN206158937U (en) | Pipe type thick oil pump | |
| CN202417895U (en) | Spinning centering sand-prevention oil-well pump | |
| CN202531415U (en) | Phi 25mm small displacement solid plunger oil-well pump | |
| CN205172529U (en) | Can lubricate abrasionproof oil jack | |
| CN202659218U (en) | Oil lubrication oil-pumping device | |
| CN202732297U (en) | Rodless hydraulic feedback oil pump | |
| CN201437691U (en) | Self-lubricating process pipe column separator | |
| CN201013577Y (en) | Electric pump sand prevention device | |
| CN104632107A (en) | Horizontal well sand washing flowback fluid turbulent flow state generator | |
| CN204738950U (en) | Drag reduction sand control has pole oil -well pump | |
| CN204457513U (en) | Underground work fluid power sand flushing device | |
| CN212454788U (en) | Novel oil well pump plunger | |
| CN205605138U (en) | Sucker rod abrasionproof centralizer |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20170807 |