CN109209255A - A kind of active friction formula eccentric abrasion prevention pipe nipple - Google Patents
A kind of active friction formula eccentric abrasion prevention pipe nipple Download PDFInfo
- Publication number
- CN109209255A CN109209255A CN201810912522.7A CN201810912522A CN109209255A CN 109209255 A CN109209255 A CN 109209255A CN 201810912522 A CN201810912522 A CN 201810912522A CN 109209255 A CN109209255 A CN 109209255A
- Authority
- CN
- China
- Prior art keywords
- connector
- abrasion prevention
- pipe nipple
- sucker rod
- active friction
- 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
- 238000005299 abrasion Methods 0.000 title claims abstract description 41
- 230000002265 prevention Effects 0.000 title claims abstract description 34
- 210000002445 nipple Anatomy 0.000 title claims abstract description 23
- 238000005452 bending Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000004663 powder metallurgy Methods 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
-
- 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
- E21B17/02—Couplings; joints
-
- 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
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
-
- 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
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
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 kind of active friction formula eccentric abrasion prevention pipe nipples, specifically include the first connector, anti-attrition component and the second connector；Connecting with pumping rod between first connector and second connector；First connector and second connector are respectively provided with rotation bending mechanism；The rotation bending mechanism generates rotation for the sucker rod and/or swings；The anti-attrition component, rotatable to be socketed on the sucker rod, surface has anti-abrasion structure；The anti-abrasion structure, for reducing the friction of pit shaft at the sucker rod and eccentric wear point.The pipe nipple is realized on the basis of existing eccentric wear point prediction technology; sucker rod and oil pipe are protected by active friction, improve at eccentric wear point effective eccentric abrasion prevention rate, reduce sucker rod due to continuously bending caused by fatigue damage, improve sucker rod service life.It is not strong to solve existing eccentric abrasion prevention design specific aim, the bad problem of eccentric abrasion prevention effect.
Description
Technical field
The present invention relates to oil extraction in oil field engineering device technique field, specifically a kind of tool of eccentric abrasion prevention is taken out for oil field
Beam hanger righting.
Background technique
In oil field pumping well sucker rod pumping system, eccentric wear problem occurs mainly with following three kinds of situations, first is that hole deviation
Or pit shaft bending, and as hole angle increases, side-abrasion of rod string aggravates；Second is that tube rod unstability is bent, and related to manufacturing parameter, pump
Hang that deeper, jig frequency is higher, eccentric wear is more serious, mainly due to the bending of tube rod unstability cause in, lower part eccentric wear, it is inclined to be that beam hanger occurs
The unstable dynamic factor of mill；Third is that production fluid corrosive medium is excessive, and as moisture content and salinity increase, tube rod corrosion rate
It is bigger, eccentric wear is more serious.For the first case, casing programme is intrinsic structural factor, and eccentric wear point prediction is also relatively easy to,
It can be to progress eccentric abrasion prevention design at eccentric wear point；For the third situation, can avoid by anticorrosion process；And for second
Kind of situation, current main eccentric wear-proof process mainly first predict eccentric wear point, then to carried out at eccentric wear point righting class plus
Weight class or the eccentric wear-proof process design of anchoring class etc., but for righting class eccentric wear-proof process, depended software carry out eccentric wear point prediction with
Some total gaps of actual conditions, exist it is inaccurate to eccentric wear point prediction, cannot targetedly carry out eccentric abrasion prevention design, cause to have
The problems such as imitating the reduction of eccentric abrasion prevention rate, rod parting, eccentric wear problem does not obtain effective solution, in exploitation of oil-gas field process
In cause extremely serious consequence, can not be ignored.
Summary of the invention
In view of this, the present invention provides a kind of active friction formula eccentric abrasion prevention pipe nipple, realize in existing eccentric wear point prediction skill
On the basis of art, sucker rod and oil pipe are protected by active friction, are improved to effective eccentric abrasion prevention rate at eccentric wear point, reduction
Sucker rod due to continuously bending caused by fatigue damage, improve sucker rod service life.
For achieving the above object, a kind of active friction formula eccentric abrasion prevention pipe nipple characterized by comprising
First connector, anti-attrition component and the second connector；
Connecting with pumping rod between first connector and second connector；
First connector and second connector are respectively provided with rotation bending mechanism；
The rotation bending mechanism generates rotation for the sucker rod and/or swings；
The anti-attrition component, rotatable to be socketed on the sucker rod, surface has anti-abrasion structure；
The anti-abrasion structure, for reducing the friction of pit shaft at the sucker rod and eccentric wear point.
Preferably, the wear-reducing mechanism, comprising:
Annulus body；
The annulus body, surface have rolling member；
It is rolling friction between the rolling member and the pit shaft.
Preferably, there are several grooves on the annulus body；
The groove, it is interior that there is several rolling members, the roller track for the rolling member.
Preferably, the rolling member is ball, needle roller or roller.
Preferably, the groove is inclined groove；
The tilt angle of the inclined groove is in 65 ± 1 ° of lift angles；
The inclined groove equidistant Spiral distribution on the annulus body.
Preferably, the groove is closed circuit formula.
Preferably, first connector and second connector, using universal box cupling.
Preferably, the universal box cupling, comprising:
Two cross yokes；
It is connected between two cross yokes by hydraulic steering gear adopting cross piece.
The invention has the following beneficial effects:
1. apparatus structure is simple, only this system need to be connected at the beam hanger point of neutralization of prediction, can be protected without specifying tubing string
Demonstrate,prove effective control to friction phenomenon.
2. eccentric abrasion prevention effect is good, the position of eccentric wear point is fixed among two pipe nipples, and the position of eccentric wear point has obtained determination,
And then cover centralizer accurately at eccentric wear point, thus it is with strong points to the effect of the eccentric abrasion prevention of eccentric wear point, implementation result is good.
3. it is versatile, have a wide range of application, install it is simple, as long as beam hanger unstability and caused by eccentric wear problem,
It can be controlled effectively, and installation is relatively simple, practicability is stronger.
Detailed description of the invention
By the description below with reference to attached drawing to the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage is apparent, in the accompanying drawings:
Fig. 1 is the structural schematic diagram of the active friction formula eccentric abrasion prevention pipe nipple of the embodiment of the present invention；
Fig. 2 is the assembling schematic diagram of the universal box cupling of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the universal-joint fork of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the anti-attrition component of the embodiment of the present invention；
Fig. 5 is the three-dimensional figure of the anti-attrition component of the embodiment of the present invention.
Specific embodiment
Below based on embodiment, present invention is described, but it is worth noting that, the present invention is not limited to these realities
Apply example.It is detailed to describe some specific detail sections below in datail description of the invention.However, for not detailed
The present invention can also be understood completely in the part described to the greatest extent, those skilled in the art.
In addition, it should be understood by one skilled in the art that provided attached drawing simply to illustrate that the purpose of the present invention,
Feature and advantage, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
Fig. 1 is the structural schematic diagram of the active friction formula eccentric abrasion prevention pipe nipple of the embodiment of the present invention；As shown in Figure 1: Yi Zhongzhu
Dynamic friction formula eccentric abrasion prevention pipe nipple (is equivalent to anti-attrition described in summary of the invention including upper universal box cupling, ball-type spin centralizer
Component) and under universal box cupling.
Further, as shown in Fig. 1 combination Fig. 2 and Fig. 3: the upper universal box cupling universal box cupling under, which is respectively equipped with, to be convenient for
The structure of the screw thread connecting with sucker rod 8, upper universal box cupling universal box cupling under is identical, universal box cupling, including connecting with pumping rod
Connector 1, hydraulic steering gear adopting cross piece 3, cross yoke 2, the first rolling bearing 9, the second rolling bearing 10 and bearing cap 7.As can be seen that oil pumping
Bar 8 by upper universal box cupling and under universal box cupling, can produce rotation and swing.
Further, as shown in connection with fig. 5 by Fig. 4: a ball-type spin is cased on the sucker rod 8 between two universal box cuplings
Supporting positive cover 5, ball-type spin 5 lateral surface of supporting positive cover are provided with several grooves 11, and groove 11 is in spiral distribution, every groove
Ball 6 is filled in 11, which forms closed circuit.
Further, sucker rod 8, which is equipped with, can make ball-type spin about 5 setting-up piece 4 of supporting positive cover, and gasket 4 can be to prevent
Only ball 6 will not fall off when realizing self-loopa in ball-type spin supporting positive cover 5, and two 4 one, gasket are connected by plus thread
It connects on sucker rod 8, one is connected on sucker rod 8 by left-hand thread, and the supporting positive cover 5 that ball-type can be spinned is fixed on oil pumping
On bar 8, the fixation degree of ball-type spin supporting positive cover 5 is increased, reduces the expulsion rate of ball-type spin supporting positive cover 5.
Sheet when use, the purpose of invention are achieved in that during installation, this device is first mounted on prediction eccentric wear point
Place, because upper universal box cupling and under universal box cupling than sucker rod 8 be easy to bend, therefore eccentric wear point can be fixed on it is up to ten thousand to box cupling and under
Between universal box cupling, on the basis of precisely prediction to eccentric wear point, upper universal box cupling and under install one between universal box cupling
A ball-type spin supporting positive cover 5, change sliding friction then realize accurate eccentric abrasion prevention design into rolling friction.
The course of work of active eccentric wear formula eccentric abrasion prevention pipe nipple of the present invention is specifically described below:
Eccentric wear point prediction is carried out to production tube before tripping in flow string and calculates eccentric wear point quantity, is installed at eccentric wear point
The eccentric abrasion prevention pipe nipple of the application, upper universal box cupling and under universal box cupling connect with sucker rod 8 by screw thread, upper universal box cupling with
Installation spin ball-type supporting positive cover 5 at sucker rod between lower everything box cupling.
By the flow string lower going-into-well bottom after assembling, the load suffered during upstroke and down stroke of sucker rod 8
Difference, upper universal box cupling and under in universal box cupling, one of cross yoke 2 in universal box cupling drives separately by cross axle 3
One cross yoke 2 rotates, while can swing in any direction around 3 center of cross axle again, so spin ball-type supporting positive cover 5
It can rotate and swing, 6 rotation of ball in rotation and swing process, to mitigate friction.
Ball-type spin supporting positive cover 5 and eccentric wear point position are generally in the sucker rod point of neutralization hereinafter, by sucker rod flexibility
Suffered power is analyzed in deformation process, is determined and is added the active friction eccentric abrasion prevention pipe nipple of the application in some positions, is become and is taken out
Rigid connection between beam hanger is activity connection.The active friction formula that the application is added near sucker rod prediction eccentric wear point is anti-
Eccentric wear pipe nipple, proof strength and it is safe while, making its actively becomes the eccentric wear point of sucker rod, reaches the mesh of active eccentric abrasion prevention
's.
The material of the supporting positive cover 5 of ball-type spin at present has enhancing nylon, powder metallurgy, enhancement engineering plastics, carbon fiber, gold
Belong to etc., consider that holddown phenomenon easily occurs for the clast generated after nylon is worn, therefore selects material for the ball of enhancement engineering plastics
Formula spin supporting positive cover 5.
By being described above, active friction formula eccentric abrasion prevention pipe nipple can unstability be curved in up-down stroke to ultradeep well sucker rod
It is bent and caused by eccentric wear targetedly carry out eccentric abrasion prevention design, achieve the purpose that accurately and efficiently eccentric abrasion prevention.
Embodiment described above is only to express embodiments of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that those skilled in the art,
Under the premise of not departing from present inventive concept, several deformations, same replacement can also be made, improved etc., these belong to the present invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of active friction formula eccentric abrasion prevention pipe nipple characterized by comprising
First connector, anti-attrition component and the second connector；
Connecting with pumping rod between first connector and second connector；
First connector and second connector are respectively provided with rotation bending mechanism；
The rotation bending mechanism generates rotation for the sucker rod and/or swings；
The anti-attrition component, rotatable to be socketed on the sucker rod, surface has anti-abrasion structure；
The anti-abrasion structure, for reducing the friction of pit shaft at the sucker rod and eccentric wear point.
2. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 1, which is characterized in that the wear-reducing mechanism, packet
It includes:
Annulus body；
The annulus body, surface have rolling member；
It is rolling friction between the rolling member and the pit shaft.
3. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 2, it is characterised in that:
There are several grooves on the annulus body；
The groove, it is interior that there is several rolling members, the roller track for the rolling member.
4. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 2, it is characterised in that:
The rolling member is ball, needle roller or roller.
5. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 3, it is characterised in that:
The groove is inclined groove；
The tilt angle of the inclined groove is in 65 ± 1 ° of lift angles；
The inclined groove equidistant Spiral distribution on the annulus body.
6. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 2, it is characterised in that:
The groove is closed circuit formula.
7. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 1, it is characterised in that:
First connector and second connector, using universal box cupling.
8. a kind of active friction formula eccentric abrasion prevention pipe nipple according to claim 7, it is characterised in that:
The universal box cupling, comprising:
Two cross yokes (2)；
It is connected between two cross yokes (2) by hydraulic steering gear adopting cross piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810912522.7A CN109209255A (en) | 2018-08-12 | 2018-08-12 | A kind of active friction formula eccentric abrasion prevention pipe nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810912522.7A CN109209255A (en) | 2018-08-12 | 2018-08-12 | A kind of active friction formula eccentric abrasion prevention pipe nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209255A true CN109209255A (en) | 2019-01-15 |
Family
ID=64987722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810912522.7A Pending CN109209255A (en) | 2018-08-12 | 2018-08-12 | A kind of active friction formula eccentric abrasion prevention pipe nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209255A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005712A (en) * | 2019-11-18 | 2020-04-14 | 中国石油天然气股份有限公司 | Automatic identification method for offset wear of directional well rod pipe |
| CN112065298A (en) * | 2020-09-22 | 2020-12-11 | 西华大学 | Shale gas drilling type coring apparatus short joint connecting mechanism |
| CN116856866A (en) * | 2023-09-01 | 2023-10-10 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
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| CN1369611A (en) * | 2002-03-29 | 2002-09-18 | 刘建航 | Centralizer for cardan axle of suker rod |
| CN200961449Y (en) * | 2006-10-20 | 2007-10-17 | 赵科昌 | Oil sucking rod for resisting eccentric wear |
| US20160108685A1 (en) * | 2013-02-28 | 2016-04-21 | Guy Wheater | Articulated Wireline Hole Finder |
| CN206554819U (en) * | 2017-02-24 | 2017-10-13 | 中国石油化工股份有限公司 | A kind of pumping rod universal erection device |
| CN206860508U (en) * | 2017-06-08 | 2018-01-09 | 天水风动机械股份有限公司 | Frost preventing machine tower body has the transmission device of knuckle |
| CN207278206U (en) * | 2017-09-30 | 2018-04-27 | 中国石油化工股份有限公司江汉油田分公司荆州采油厂 | A kind of universal rolling proof-wear sucker rod centralising device |
| CN207420482U (en) * | 2017-11-07 | 2018-05-29 | 中国石油集团渤海钻探工程有限公司 | Universal rolling centralizer |
-
2018
- 2018-08-12 CN CN201810912522.7A patent/CN109209255A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369611A (en) * | 2002-03-29 | 2002-09-18 | 刘建航 | Centralizer for cardan axle of suker rod |
| CN200961449Y (en) * | 2006-10-20 | 2007-10-17 | 赵科昌 | Oil sucking rod for resisting eccentric wear |
| US20160108685A1 (en) * | 2013-02-28 | 2016-04-21 | Guy Wheater | Articulated Wireline Hole Finder |
| CN206554819U (en) * | 2017-02-24 | 2017-10-13 | 中国石油化工股份有限公司 | A kind of pumping rod universal erection device |
| CN206860508U (en) * | 2017-06-08 | 2018-01-09 | 天水风动机械股份有限公司 | Frost preventing machine tower body has the transmission device of knuckle |
| CN207278206U (en) * | 2017-09-30 | 2018-04-27 | 中国石油化工股份有限公司江汉油田分公司荆州采油厂 | A kind of universal rolling proof-wear sucker rod centralising device |
| CN207420482U (en) * | 2017-11-07 | 2018-05-29 | 中国石油集团渤海钻探工程有限公司 | Universal rolling centralizer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005712A (en) * | 2019-11-18 | 2020-04-14 | 中国石油天然气股份有限公司 | Automatic identification method for offset wear of directional well rod pipe |
| CN112065298A (en) * | 2020-09-22 | 2020-12-11 | 西华大学 | Shale gas drilling type coring apparatus short joint connecting mechanism |
| CN116856866A (en) * | 2023-09-01 | 2023-10-10 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
| CN116856866B (en) * | 2023-09-01 | 2023-12-15 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
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Application publication date: 20190115 |
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