CN105756575A - Fatigue damage prevention polish rod of oil pumping unit and mounting method - Google Patents
Fatigue damage prevention polish rod of oil pumping unit and mounting method Download PDFInfo
- Publication number
- CN105756575A CN105756575A CN201610297853.5A CN201610297853A CN105756575A CN 105756575 A CN105756575 A CN 105756575A CN 201610297853 A CN201610297853 A CN 201610297853A CN 105756575 A CN105756575 A CN 105756575A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- rod body
- rod
- polished rod
- fatigue damage
- 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
- 230000006378 damage Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 15
- 238000005086 pumping Methods 0.000 title abstract description 5
- 230000002265 prevention Effects 0.000 title abstract 3
- 230000002929 anti-fatigue Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000006386 memory function Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 208000025962 Crush injury Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery 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
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
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)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a fatigue damage prevention polish rod of an oil pumping unit. The fatigue damage prevention polish rod comprises a polish rod body and a polish rod clamp, as well as a casing, wherein the polish rod body is sleeved by the casing; the polish rod clamp is arranged on the outer wall of the casing in a clamping manner; the inner diameter of the casing is matched with the outer diameter of the polish rod body; by virtue of the shape memory function of the casing, the casing can be fixedly arranged on the polish rod body; the casing is made of a memory alloy. Due to the casing arranged on the polish rod body in a sleeving manner, the polish rod body can be prevented from extrusion damages caused by the polish rod clamp, the fatigue resistance of the polish rod body is improved, and the service life of the polish rod body is prolonged.
Description
Technical field
The present invention relates to energy extraction apparatus field, be specifically related to oil-extractor polish-rod and the installation method of a kind of anti-fatigue damage.
Background technology
Oil pumper is the main production equipments in oil, natural gas and coal bed gas equal energy source recovery process.Oil-extractor polish-rod is one of main motion parts of oil pumper, connects well head polished rod eye and underground sucker rod, is delivered on underground sucker rod by the power of oil pumper.In pumpingh well normal productive process, polished rod is fixed on well head polished rod eye by optical-rod clamp, under the drive of pumping unit horsehead, doing upper and lower stroke motion, pumping thus drawing sucker rod and oil pump piston in pit shaft, extract out the ground such as oil, natural gas and coal bed gas.
There is form friction pattern inside optical-rod clamp, can ensure that the strong bonded between clip and polished rod after installation, but the form friction pattern within clamp can embed polished rod tightly, cause polished rod surface mechanical damage.Oil-extractor polish-rod operationally pumps, and bears cyclic loading, and polished rod surface damage district stress is concentrated, and is that fatigue crack easily sends out region.There is fracture suddenly the most at last in polished rod, cause that oil pumper stops, and the stop production to overhaul thereby resulted in can strengthen production cost, may result in oil or natural gas leaking simultaneously, cause environmental pollution under cyclic loading.
For the problems referred to above, existing frequently-used solution has: the out-of-level and up process caput Equi Asini collision polished rod phenomenon of breakdown of emulsion viscosity reduction, reduction oil well load, elimination polished rod eye.But these methods all can not thoroughly solve oil pumping polish rod fatigue damage breakage problem and troublesome poeration.
In view of this, develop a kind of new oil-extractor polish-rod, solve the problem that in prior art, polished rod fatigue damage causes fracture, it is clear that be a need for meaning.
Summary of the invention
It is an object of the invention to provide the oil-extractor polish-rod of a kind of anti-fatigue damage and installation method, solve the easy fatigue damage of polished rod of prior art, rupture, cause the problem that oil pumper stops production.
To achieve the above object of the invention, the technical solution used in the present invention is: the oil-extractor polish-rod of a kind of anti-fatigue damage, including polished rod body and optical-rod clamp, also includes sleeve pipe, and described casing pipe sleeve is located on polished rod body, and described optical-rod clamp is folded in the outer wall of sleeve pipe,
The internal diameter of described sleeve pipe matches with the external diameter of polished rod body so that described sleeve pipe is fastened on polished rod body,
The material of described sleeve pipe is memorial alloy.
Preferably, described sleeve pipe is cylinder-shaped sleeve or multi-edge column-shaped sleeve pipe.
Preferably, the through hole of described sleeve pipe is cylindrical or multi-edge column-shaped.
Preferably, the internal diameter of described sleeve pipe is 10～200mm.
In further technical scheme, the internal diameter of described sleeve pipe is 25.4mm or 35mm or 70mm or 150mm.
Preferably, the end of the through hole of described sleeve pipe is inverted cone-shaped structure.
In further technical scheme, first described sleeve through hole is inserted in the end of polished rod body is inverted cone-shaped structure.
In the present invention, the end face of described sleeve pipe is perpendicular with the through hole of sleeve pipe.
Present invention also offers the oil-extractor polish-rod installation method of a kind of anti-fatigue damage, comprise the steps:
A first sleeve pipe is carried out low temperature expanding before using by ()；
B casing pipe sleeve is connected on the appropriate location of polished rod body by (), then sleeve pipe is heated, and makes sleeve pipe hold polished rod body tightly；
C optical-rod clamp is finally folded in jacket exterior by (), clamping force uniformly transferred to polished rod body.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1. the present invention sheathed sleeve pipe on polished rod body, utilizes the shape memory function of sleeve pipe, and protection polished rod body, not by the crush injury of optical-rod clamp, improves anti-fatigue performance and the service life of polished rod；
2. the sleeve pipe of the present invention adopts memorial alloy material, has good decay resistance, it is possible to opposing oil pumper works the various environmental problems faced in the wild；
3. the sleeve pipe of the present invention also has the vibration absorbed in polished rod work, it is prevented that connect the function loosened；
4. the simple in construction of the present invention, easy to process, installs easily, is suitable to popularization and application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of middle sleeve of the present invention.
Fig. 3 is the sectional view of Fig. 2.
Fig. 4 is the structural representation after installation of the present invention.
Wherein: 1, sleeve pipe；2, optical-rod clamp；3, polished rod body.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment one:
Shown in Figure 1, the oil-extractor polish-rod of a kind of anti-fatigue damage, including polished rod body 3 and optical-rod clamp 2, also include sleeve pipe 1, sleeve pipe 1 is set on polished rod body 3, and optical-rod clamp 2 is folded in the outer wall of sleeve pipe 1,
The internal diameter of sleeve pipe 1 matches with the external diameter of polished rod so that sleeve pipe 1 is fastened on polished rod body 3,
The material of sleeve pipe 1 is memorial alloy.
In the present embodiment, sleeve pipe 1 is cylinder-shaped sleeve.
In the present embodiment, the through hole of sleeve pipe 1 is cylindrical.
In the present embodiment, the internal diameter of sleeve pipe 1 is 25.4mm.
Shown in Fig. 2, Fig. 3, in the present embodiment, the end of the through hole of sleeve pipe is inverted cone-shaped structure.
The present embodiment additionally provides the oil-extractor polish-rod installation method of a kind of anti-fatigue damage, before comprising the steps: that (a) uses, first sleeve pipe 1 is carried out low temperature and draws together expanding；
B sleeve pipe 1 is socketed in the appropriate location of polished rod body 3 by (), then sleeve pipe 1 is heated, and makes sleeve pipe 1 hold polished rod body 3 tightly；
C optical-rod clamp 2 is finally folded in sleeve pipe 1 by () outside, uniformly transfers clamping force to polished rod body 3, completes to install.
After completing to install, polished rod can avoid stress to concentrate, and makes connection reliably fasten, resistance to be hit or vibrate do not loosen, can be shown in Figure 4.
Embodiment two:
Shown in Figure 1, the oil-extractor polish-rod of a kind of anti-fatigue damage, including polished rod body 3 and optical-rod clamp 2, also include sleeve pipe 1, sleeve pipe 1 is set on polished rod body 3, and optical-rod clamp 2 is folded in the outer wall of sleeve pipe 1,
The internal diameter of sleeve pipe 1 matches with the external diameter of polished rod so that sleeve pipe 1 is fastened on polished rod body 3,
The material of sleeve pipe 1 is memorial alloy.
In the present embodiment, sleeve pipe 1 is cylinder-shaped sleeve.
In the present embodiment, the through hole of sleeve pipe 1 is cylindrical.
In the present embodiment, the internal diameter of sleeve pipe 1 is 35mm.
Shown in Fig. 2, Fig. 3, in the present embodiment, the end of the through hole of sleeve pipe 1 is inverted cone-shaped structure.
The present embodiment additionally provides the oil-extractor polish-rod installation method of a kind of anti-fatigue damage, before comprising the steps: that (a) uses, first sleeve pipe 1 is carried out low temperature expanding；
B sleeve pipe 1 is socketed in the appropriate location of polished rod body 3 by (), then sleeve pipe 1 is heated, and makes sleeve pipe 1 hold polished rod body 3 tightly；
C optical-rod clamp 2 is finally folded in sleeve pipe 1 by () outside, uniformly transfers clamping force to polished rod body 3, completes to install.
After completing to install, polished rod can avoid stress to concentrate, and makes connection reliably fasten, resistance to be hit or vibrate do not loosen, can be shown in Figure 4.
Embodiment three:
Shown in Figure 1, the oil-extractor polish-rod of a kind of anti-fatigue damage, including polished rod body 3 and optical-rod clamp 2, also include sleeve pipe 1, sleeve pipe 1 is set on polished rod body 3, and optical-rod clamp 2 is folded in the outer wall of sleeve pipe 1,
The internal diameter of sleeve pipe 1 matches with the external diameter of polished rod so that sleeve pipe 1 is fastened on polished rod body 3,
The material of sleeve pipe 1 is memorial alloy.
In the present embodiment, sleeve pipe 1 is cylinder-shaped sleeve.
In the present embodiment, the through hole of sleeve pipe 1 is cylindrical.
In the present embodiment, the internal diameter of sleeve pipe 1 is 70mm.
Shown in Fig. 2, Fig. 3, in the present embodiment, the end of the through hole of sleeve pipe 1 is inverted cone-shaped structure.
The present embodiment additionally provides the oil-extractor polish-rod installation method of a kind of anti-fatigue damage, before comprising the steps: that (a) uses, first sleeve pipe 1 is carried out low temperature expanding；
B sleeve pipe 1 is socketed in the appropriate location of polished rod body 3 by (), then sleeve pipe 1 is heated, and makes sleeve pipe 1 hold polished rod body 3 tightly；
C optical-rod clamp 2 is finally folded in sleeve pipe 1 by () outside, clamping force is uniformly transferred to polished rod body 3.
After completing to install, polished rod can avoid stress to concentrate, and makes connection reliably fasten, resistance to be hit or vibrate do not loosen, can be shown in Figure 4.
Embodiment four:
Shown in Figure 1, the oil-extractor polish-rod of a kind of anti-fatigue damage, including polished rod body 3 and optical-rod clamp 2, also include sleeve pipe 1, sleeve pipe 1 is set on polished rod body 3, and optical-rod clamp 2 is folded in the outer wall of sleeve pipe 1,
The internal diameter of sleeve pipe 1 matches with the external diameter of polished rod so that sleeve pipe 1 is fastened on polished rod body 3,
The material of sleeve pipe 1 is memorial alloy.
In the present embodiment, sleeve pipe 1 is cylinder-shaped sleeve.
In the present embodiment, the through hole of sleeve pipe 1 is cylindrical.
In the present embodiment, the internal diameter of sleeve pipe 1 is 150mm.
Shown in Fig. 2, Fig. 3, in the present embodiment, the end of the through hole of sleeve pipe 1 is inverted cone-shaped structure.
The present embodiment additionally provides the oil-extractor polish-rod installation method of a kind of anti-fatigue damage, before comprising the steps: that (a) uses, first sleeve pipe 1 is carried out low temperature expanding；
B sleeve pipe 1 is socketed in the appropriate location of polished rod body 3 by (), then sleeve pipe 1 is heated, and makes sleeve pipe 1 hold polished rod body 3 tightly；
C optical-rod clamp 2 is finally folded in sleeve pipe 1 by () outside, clamping force is uniformly transferred to polished rod body 3.
After completing to install, polished rod can avoid stress to concentrate, and makes connection reliably fasten, resistance to be hit or vibrate do not loosen, can be shown in Figure 4.
Claims (8)
1. the oil-extractor polish-rod of an anti-fatigue damage, including polished rod body (3) and optical-rod clamp (2), it is characterised in that: also including sleeve pipe (1), described casing pipe sleeve (1) is located on polished rod body (3), described optical-rod clamp (2) is folded in the outer wall of sleeve pipe (1)
The internal diameter of described sleeve pipe (1) matches with the external diameter of polished rod body (3) so that described sleeve pipe (1) is fastened on polished rod body (3),
The material of described sleeve pipe (1) is memorial alloy.
2. the oil-extractor polish-rod of anti-fatigue damage according to claim 1, it is characterised in that: described sleeve pipe (1) is cylinder-shaped sleeve or multi-edge column-shaped sleeve pipe.
3. the oil-extractor polish-rod of anti-fatigue damage according to claim 1, it is characterised in that: the through hole of described sleeve pipe (1) is cylindrical or multi-edge column-shaped.
4. the oil-extractor polish-rod of anti-fatigue damage according to claim 1, it is characterised in that: the internal diameter of described sleeve pipe (1) is 10～200mm.
5. the oil-extractor polish-rod of anti-fatigue damage according to claim 4, it is characterised in that: the internal diameter of described sleeve pipe (1) is 25.4mm or 35mm or 70mm or 150mm.
6. the oil-extractor polish-rod of anti-fatigue damage according to claim 1, it is characterised in that: the end of the through hole of described sleeve pipe (1) is inverted cone-shaped structure.
7. the oil-extractor polish-rod of anti-fatigue damage according to claim 6, it is characterised in that: first described sleeve pipe (1) through hole is inserted in the end of polished rod is inverted cone-shaped structure.
8. the oil-extractor polish-rod installation method of an anti-fatigue damage, it is characterised in that: comprise the steps:
A sleeve pipe (1) is first carried out low temperature expanding before using by ()；
B sleeve pipe (1) is socketed in the appropriate location of polished rod body (3) by (), then sleeve pipe (1) is heated, and makes sleeve pipe (1) hold polished rod body (3) tightly；
C optical-rod clamp (2) is finally folded in sleeve pipe (1) by () outside, clamping force is uniformly transferred to polished rod body (3), completes to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297853.5A CN105756575A (en) | 2016-05-06 | 2016-05-06 | Fatigue damage prevention polish rod of oil pumping unit and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297853.5A CN105756575A (en) | 2016-05-06 | 2016-05-06 | Fatigue damage prevention polish rod of oil pumping unit and mounting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756575A true CN105756575A (en) | 2016-07-13 |
Family
ID=56323561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610297853.5A Pending CN105756575A (en) | 2016-05-06 | 2016-05-06 | Fatigue damage prevention polish rod of oil pumping unit and mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105756575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194038A (en) * | 2018-02-27 | 2018-06-22 | 北京工商大学 | It is exclusively used in the optical-rod clamp of surfacing alloy coating pumping rod/polish rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091946U (en) * | 1991-06-25 | 1992-01-01 | 瞿海涵 | Sucker rod fastener |
| CN202031500U (en) * | 2011-02-16 | 2011-11-09 | 中国石油化工股份有限公司 | Clip for polish rod on rod-pumped well |
| CN202073509U (en) * | 2011-06-01 | 2011-12-14 | 袁文熙 | Pumping rod protector |
| CN203603789U (en) * | 2013-12-04 | 2014-05-21 | 张云 | Polish rod anti-disengagement square clamp for producing wells |
| CN104033466A (en) * | 2014-05-27 | 2014-09-10 | 潍柴动力股份有限公司 | Threaded connection assembly |
| CN205591844U (en) * | 2016-05-06 | 2016-09-21 | 苏州国嘉记忆合金有限公司 | Prevent fatigue damage's beam -pumping unit polished rod |
-
2016
- 2016-05-06 CN CN201610297853.5A patent/CN105756575A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091946U (en) * | 1991-06-25 | 1992-01-01 | 瞿海涵 | Sucker rod fastener |
| CN202031500U (en) * | 2011-02-16 | 2011-11-09 | 中国石油化工股份有限公司 | Clip for polish rod on rod-pumped well |
| CN202073509U (en) * | 2011-06-01 | 2011-12-14 | 袁文熙 | Pumping rod protector |
| CN203603789U (en) * | 2013-12-04 | 2014-05-21 | 张云 | Polish rod anti-disengagement square clamp for producing wells |
| CN104033466A (en) * | 2014-05-27 | 2014-09-10 | 潍柴动力股份有限公司 | Threaded connection assembly |
| CN205591844U (en) * | 2016-05-06 | 2016-09-21 | 苏州国嘉记忆合金有限公司 | Prevent fatigue damage's beam -pumping unit polished rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194038A (en) * | 2018-02-27 | 2018-06-22 | 北京工商大学 | It is exclusively used in the optical-rod clamp of surfacing alloy coating pumping rod/polish rod |
| CN108194038B (en) * | 2018-02-27 | 2024-03-12 | 北京工商大学 | Polish rod clip special for spray welding alloy coating oil pumping polish rod |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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: 20160713 |