CN106703715A - Self-block type pumping rod centering device - Google Patents
Self-block type pumping rod centering device Download PDFInfo
- Publication number
- CN106703715A CN106703715A CN201710128893.1A CN201710128893A CN106703715A CN 106703715 A CN106703715 A CN 106703715A CN 201710128893 A CN201710128893 A CN 201710128893A CN 106703715 A CN106703715 A CN 106703715A
- Authority
- CN
- China
- Prior art keywords
- tubular body
- straight trough
- pumping rod
- centering device
- self
- 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
- 238000005086 pumping Methods 0.000 title claims abstract description 43
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 229910000639 Spring steel Inorganic materials 0.000 claims description 8
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 229920000620 organic polymer Polymers 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a self-block type pumping rod centering device, comprising a tubular main body made of organic polymer material, wherein the inside diameter of the tubular main body is defined as D1, and the outside diameter is D3, D1 is slightly less than the outside diameter of the pumping rod; the middle part of the tubular main body is provided with a chute of which included angle between length direction and axial direction is 30-60 degrees, the width of the chute is slightly more than the outside diameter of the pumping rod; the depth of the chute is D1/2+D3/2; a first straight groove and a second straight groove are in parallel on their length direction and axial direction and arranged on the tubular main body; the first straight groove is penetrated through the lower part of the pipe wall of the tubular main body and one end thereof is penetrated through the other end of the left end of the tubular main body and connected with the chute; the second chute is penetrated through the upper part of the pipe wall of the tubular main body, and one end is penetrated through the other end of the right end of the tubular main body and connected with the chute; widths of the first straight groove and the second straight groove are equal to or slightly less than D1. Compared with the prior art, the self-block type pumping rod centering device is low in cost, convenient to use, powerful in function, high in working temperature; the running efficiency of an oil extraction system of the pumping rod can be improved, and the production cost is greatly reduced.
Description
Technical field
The invention belongs to petroleum equipment technical field, specifically a kind of oil pumping rod centering device.
Background technology
In oilfield production, oil well rod centralizer is the equipment of sucker rod pumping system sucker rod stabilizing.Existing oil
That well oil pumping rod centering device is commonly used is SY/T5832-2009《People's Republic of China's oil and gas industry standard》In
's：1. roller class oil pumping rod centering device, 2. column class oil pumping rod centering device, 3. clip class oil pumping rod centering device, 4. sucker rod note
Modeling centralizer.Wherein：Roller class oil pumping rod centering device, column class oil pumping rod centering device it can only be installed at two sucker rod two ends
Between, increase joint connection number, increase pumping rod disengaging probability, work operations amount increases, and high processing costs, roller
The roller of class oil pumping rod centering device and roller shaft and fracture easy to wear, and cause Ka Jing.And they can only be mounted in two oil pumping
Between bar two ends, it is impossible to be arranged on the optional position of sucker rod on demand according to real work.Clip class oil pumping rod centering device is because being
It is buckled together by two panels and is stuck on sucker rod, although the optional position of sucker rod can be on demand arranged on according to working condition, but,
When the abrasion of clip class oil pumping rod centering device reaches to a certain degree, clip class oil pumping rod centering device easily disintegrates, and causes Ka Jing；
And it is high right in operating temperature, clip class oil pumping rod centering device softens, and clamping force reduces, and is easily slided on sucker rod, so as to reach
Less than the due effect of oil pumping rod centering device.Sucker rod injection centralizer is that sucker rod is directly molded in processing factory, and it can not
It is molded at the construction field (site), causes construction inconvenient.Problems above reduces oil pumping rod centering device effect, greatly increases factory's oil
Well is produced and maintenance cost.
The content of the invention
To overcome the deficiencies in the prior art, the present invention to disclose a kind of self-clamping type oil pumping rod centering device.
To realize the purpose, the technical scheme that the present invention takes is as follows：
This self-clamping type oil pumping rod centering device, including organic macromolecule material tubular body, define tubular body internal diameter be
D1, external diameter is D3, and D1 is slightly less than the external diameter of sucker rod, it is characterised in that：Length is opened up in the middle part of tubular body axially to be pressed from both sides to it
Angle is 30 ° to 60 ° of skewed slot, and the width of skewed slot is slightly larger than the external diameter of sucker rod, and the depth of skewed slot is D1/2+D3/2；Tubulose sheet
Also open up long to first straight trough and second straight trough axially in parallel with it, the tube wall lower section of the first straight trough insertion tubular body on body
And the left end other end of one end insertion tubular body is communicated with skewed slot, above the tube wall of the second straight trough insertion tubular body and one end
The right-hand member other end of insertion tubular body is communicated with skewed slot, and the width of the first straight trough and the second straight trough is equal to or slightly less than D1.
Further, skewed slot is being embedded the first C-shaped card of more than one spring steel material in the tube wall of left tubular body
Spring, the opening of the first C-shaped clamp spring is not more than the width of the first straight trough towards the first straight trough and A/F；Skewed slot is with right tubulose
The second C-shaped clamp spring of more than one spring steel material is embedded in the tube wall of body, the opening of the second C-shaped clamp spring is straight towards second
Groove and A/F are not more than the width of the second straight trough.
Further, fillet is set on the external corner of the first straight trough and/or the second straight trough and skewed slot junction.
Further, the two ends of tubular body set the chamfering that angle is 45 ° or 30 °.
Further, the inner surface of the first C-shaped clamp spring or the second C-shaped clamp spring overlaps with the inner surface of tubular body.
Compared with prior art, the present invention suitable all sucker rod pumps and non-tubing oil extraction well and single-well injection-production technique, not only
With low cost, easy to use, function is strong, and operating temperature is high, rate when can also improve the operating of beam hanger pump oil extraction system, significantly drops
Low production cost.
Brief description of the drawings
Fig. 1 is structure front view of the invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is structural perspective of the invention.
Fig. 5 is the structural perspective at another visual angle of the invention.
Fig. 6 is the sectional view of Fig. 5.
Fig. 7 is the partial enlarged drawing at the dashed box of Fig. 5.
Fig. 8 is that the present invention is combined preceding view with sucker rod.
Fig. 9 is the view after the present invention is combined with sucker rod.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, according to term " first ", "
Two ", " the 3rd ", is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected;Can
Being to mechanically connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The tubular body 1 of example 1, a kind of self-clamping type oil pumping rod centering device, including nylon material, defines tubular body 1
Internal diameter is D1, and external diameter is D3, and D1 is 47mm, and D3 is 143mm, and the external diameter of sucker rod 10 is 48mm, and the middle part of tubular body 1 opens up
Width D 2 to the skewed slot 12 that its axial angle a is 45 °, skewed slot 12 long is 49mm, and the depth of skewed slot 12 is 95mm；Then skewed slot
Internal chamber wall of 12 bottom surface just with tubular body 1 is tangent；Also open up long straight to axially in parallel with it first on tubular body 1
The straight trough 14 of groove 13 and second, the insertion tubular body 1 of the first straight trough 13 tube wall lower section and one end insertion tubular body 1 left end it is another
One end communicates with skewed slot 12, and the right-hand member of the tube wall of the insertion tubular body 1 of the second straight trough 14 top and one end insertion tubular body 1 is another
One end communicates with skewed slot 12, and the width D 4 of the first straight trough 13 and the second straight trough 14 is 47mm.
When using, referring to accompanying drawing 8, take out this self-clamping type oil pumping rod centering device, adjustment is it is positioned such that skewed slot 12
Long to make sucker rod 10 well into skewed slot 12 to axially in parallel with sucker rod 10, then this self-clamping type of rotate counterclockwise is taken out
Beam centralizer, make sucker rod 10 pass through the tube chamber that the first straight trough 13 and the second straight trough 14 enter tubular body 1, now tube chamber
Axially axially coincident with sucker rod 10, referring to accompanying drawing 9, this self-clamping type oil pumping rod centering device is just stuck on sucker rod 10, due to
The internal diameter of tubular body 1 is slightly less than the external diameter of sucker rod 10 for D1, therefore this self-clamping type oil pumping rod centering device utilizes the bullet of itself
Power is just tightly stuck in and upper and lower displacement and rotation is unable on sucker rod 10, simultaneously because the first straight trough 13 and the second straight trough 14 are opened
Mouth is not at same direction but rightabout, therefore this self-clamping type oil pumping rod centering device be not subject to clockwise torsion
When will not be pulled down from sucker rod 10, and this self-clamping type oil pumping rod centering device is typically mounted in oil pick-up tube, will not be subject to
Clockwise torsion, therefore this self-clamping type oil pumping rod centering device will not fall off under job state.The obvious installation process
It is very easy.The method for unloading is opposite with above-mentioned steps.
Example 2, other are same as Example 1, unlike skewed slot 12 being embedded 2 in the tube wall of left tubular body 1
First C-shaped clamp spring 2 of spring steel material, the opening of the first C-shaped clamp spring 2 is towards the first straight trough 13 and opening is equal to the first straight trough 13
Width D 4；Skewed slot 12 in the tube wall of right tubular body 1 being embedded 2 the second C-shaped clamp springs 3 of spring steel material, the second C-shaped
The opening of jump ring 3 is equal to the width D 4 of the second straight trough 14 towards the second straight trough 14 and A/F.First C-shaped clamp spring 2 or the 2nd C
The inner surface of shape jump ring 3 overlaps with the inner surface of tubular body 1.Because the temperature in underground job face is generally on 140 ° of left sides Celsius
The right side, can soften including the macromolecular material including nylon, so as to reduce the cladding power to sucker rod 10, consequently, it is possible to hair
Raw sliding phenomenon, in this self-clamping type oil pumping rod centering device during injection moulding, covers the first C-shaped card on mould in advance
The C-shaped clamp spring 3 of spring 2 or second so that be embedded 4 spring steel materials during injection moulding this self-clamping type oil pumping rod centering device in its tube wall
C-shaped clamp spring, the C-shaped clamp spring of spring steel material will not occur ruckbildung at a temperature of 140 ° Celsius or so, using this from
The cassette oil pumping rod centering device elastic force of itself plus multiple tracks jump ring card power, so as to ensure that this self-clamping type oil pumping rod centering device keeps
Original and lasting cladding power.Integrated injection forming process is simple, low cost.First C-shaped clamp spring 2 or the second C-shaped clamp spring 3
Inner surface overlaps with the inner surface of tubular body 1, then mean can C-shaped clamp spring apart from tubular body 1 outer wall distance relatively
Greatly, the part that can be worn is also relatively large, fully increases the service life.
Example 3, other are identical with embodiment 1 or 2, the difference is that the first straight trough 13 and/or the second straight trough 14 and skewed slot 12
Fillet 15 is set on the external corner of junction.The fillet 15 of setting can reduce the resistance in installation process.
Example 4, other are identical with embodiment 1 or 2 or 3, and the two ends of tubular body 1 set angle b and are 45 ° or 30 ° falls
Angle 11.Chamfering is set resistance is reduced when can ensure that this self-clamping type oil pumping rod centering device is slided in oil pick-up tube, it is convenient to install.
Claims (5)
1. a kind of tubular body of self-clamping type oil pumping rod centering device, including organic macromolecule material, defines the internal diameter of tubular body
It is D1, external diameter is D3, and D1 is slightly less than the external diameter of sucker rod, it is characterised in that：Opened up in the middle part of tubular body it is long to its axial direction
Angle is 30 ° to 60 ° of skewed slot, and the width of skewed slot is slightly larger than the external diameter of sucker rod, and the depth of skewed slot is D1/2+D3/2；Tubulose
Also open up long to first straight trough and second straight trough axially in parallel with it on body, under the tube wall of the first straight trough insertion tubular body
The left end other end of side and one end insertion tubular body is communicated with skewed slot, the tube wall top of the second straight trough insertion tubular body and
The right-hand member other end of insertion tubular body is held to be communicated with skewed slot, the width of the first straight trough and the second straight trough is equal to or slightly less than D1.
2. a kind of self-clamping type oil pumping rod centering device according to claim 1, it is characterised in that：Skewed slot is with left tubular body
Tube wall in be embedded the first C-shaped clamp spring of more than one spring steel material, the first C-shaped clamp spring opening is towards the first straight trough and opens
Mouth width is not more than the width of the first straight trough；Skewed slot in the tube wall of right tubular body being embedded more than one spring steel material
The second C-shaped clamp spring, the opening of the second C-shaped clamp spring is not more than the width of the second straight trough towards the second straight trough and A/F.
3. a kind of self-clamping type oil pumping rod centering device according to claim 1 and 2, it is characterised in that：First straight trough and/or
Fillet is set on two straight troughs and the external corner of skewed slot junction.
4. a kind of self-clamping type oil pumping rod centering device according to claim 1, it is characterised in that：The two ends of tubular body are set
Angle is the chamfering of 45 ° or 30 °.
5. a kind of self-clamping type oil pumping rod centering device according to claim 2, it is characterised in that：First C-shaped clamp spring or the 2nd C
The inner surface of shape jump ring overlaps with the inner surface of tubular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128893.1A CN106703715A (en) | 2017-03-06 | 2017-03-06 | Self-block type pumping rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128893.1A CN106703715A (en) | 2017-03-06 | 2017-03-06 | Self-block type pumping rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106703715A true CN106703715A (en) | 2017-05-24 |
Family
ID=58917984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710128893.1A Pending CN106703715A (en) | 2017-03-06 | 2017-03-06 | Self-block type pumping rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425641A (en) * | 2018-05-08 | 2018-08-21 | 大庆市晟威机械制造有限公司 | Side-mounted oil pumping rod centering device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073026U (en) * | 1990-03-12 | 1991-03-13 | 王永安 | Sucker rod centralizer |
| CN2102364U (en) * | 1991-07-23 | 1992-04-22 | 山东省广饶县大王化工机械配件厂 | Anti-abrasion corrector of oil well pumping rod connection clip |
| CN2457323Y (en) * | 2000-10-27 | 2001-10-31 | 方连君 | Centralizer of pumping rod |
| US6367556B1 (en) * | 2000-05-05 | 2002-04-09 | Curt A. Moore | Multiple configuration centralizer device and method for using same |
| GB2381280B (en) * | 2001-10-23 | 2006-03-22 | Uwg Ltd | Centraliser |
| CN102312657A (en) * | 2011-09-16 | 2012-01-11 | 淮安市井神钻采机具有限公司 | High-temperature-resistant and wear-resistant hollow rod centering guide |
| CN206513318U (en) * | 2017-03-06 | 2017-09-22 | 招远市鲁鑫石油工具有限公司 | A kind of self-clamping type oil pumping rod centering device |
-
2017
- 2017-03-06 CN CN201710128893.1A patent/CN106703715A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073026U (en) * | 1990-03-12 | 1991-03-13 | 王永安 | Sucker rod centralizer |
| CN2102364U (en) * | 1991-07-23 | 1992-04-22 | 山东省广饶县大王化工机械配件厂 | Anti-abrasion corrector of oil well pumping rod connection clip |
| US6367556B1 (en) * | 2000-05-05 | 2002-04-09 | Curt A. Moore | Multiple configuration centralizer device and method for using same |
| CN2457323Y (en) * | 2000-10-27 | 2001-10-31 | 方连君 | Centralizer of pumping rod |
| GB2381280B (en) * | 2001-10-23 | 2006-03-22 | Uwg Ltd | Centraliser |
| CN102312657A (en) * | 2011-09-16 | 2012-01-11 | 淮安市井神钻采机具有限公司 | High-temperature-resistant and wear-resistant hollow rod centering guide |
| CN206513318U (en) * | 2017-03-06 | 2017-09-22 | 招远市鲁鑫石油工具有限公司 | A kind of self-clamping type oil pumping rod centering device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425641A (en) * | 2018-05-08 | 2018-08-21 | 大庆市晟威机械制造有限公司 | Side-mounted oil pumping rod centering device |
| CN108425641B (en) * | 2018-05-08 | 2019-01-08 | 大庆市晟威机械制造有限公司 | Side-mounted oil pumping rod centering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |