CN109025841A - A kind of stainless steel Anti-corrosion sucker rod - Google Patents
A kind of stainless steel Anti-corrosion sucker rod Download PDFInfo
- Publication number
- CN109025841A CN109025841A CN201810955614.3A CN201810955614A CN109025841A CN 109025841 A CN109025841 A CN 109025841A CN 201810955614 A CN201810955614 A CN 201810955614A CN 109025841 A CN109025841 A CN 109025841A
- Authority
- CN
- China
- Prior art keywords
- connector
- cooperation
- stainless steel
- head
- rod
- 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
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 23
- 239000010935 stainless steel Substances 0.000 title claims abstract description 23
- 238000005260 corrosion Methods 0.000 title claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 7
- 229910000734 martensite Inorganic materials 0.000 claims description 2
- 230000036316 preload Effects 0.000 abstract description 2
- 238000005242 forging Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009721 upset forging Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention provides a kind of stainless steel Anti-corrosion sucker rod, including the body of rod, the both ends of the body of rod are respectively arranged with head, further include connector I and connector II, external screw thread is provided in head, connector I and connector II are threadedly coupled with the head at body of rod both ends respectively.It is respectively arranged with annular shoulder on the inside of two heads, cooperation male cone (strobilus masculinus), connector I and connector II are provided on annular shoulder close to one end of annular shoulder and is respectively arranged with cooperation inner conical surface, cooperation male cone (strobilus masculinus) and cooperation inner conical surface corresponding matching.The configuration of the present invention is simple, design rationally, can either meet the heading needs of stainless steel, also can be realized annular shoulder contact with connector I and connector II preload, guarantee the tightness of connection, prevent to loosen, be worthy to be popularized.
Description
Technical field
The present invention relates to petroleum machinery oil production equipment, specifically a kind of stainless steel Anti-corrosion sucker rod.
Background technique
Sucker rod is to be concerned as the critical component in petroleum machinery oil production equipment system, function, performance requirement
Focus.Since well liquid contains salt water or carbon dioxide or corrosion-causing bacteria in oil well, sucker rod will receive different degrees of corruption
Erosion destroys, the material according to the better stainless steel of Corrosion Protection as sucker rod, due to the hot upset forging of stainless steel material
Bad, forging deformation amount is larger, it is not easy to which upsetting goes out qualified head.Here it is problems of the prior art.
Summary of the invention
The purpose of the present invention is exactly in order to solve the problems existing in the prior art, and to devise a kind of stainless steel anti-corrosion pumping
Bar, simple structure and reasonable design can either enhance its Corrosion Protection, also be able to satisfy the upsetting demand of stainless steel, and upsetting goes out to close
Lattice head.
The technical solution of the present invention is as follows: the present invention provides a kind of stainless steel Anti-corrosion sucker rod, including the body of rod, the body of rod
Both ends be respectively arranged with head, further include connector I and connector II, be provided with external screw thread in the head, the connector I and connect
First II is threadedly coupled with the head at body of rod both ends respectively, and annular shoulder, the annular table are respectively arranged on the inside of two heads
It is provided with cooperation male cone (strobilus masculinus) on shoulder, the connector I and connector II are respectively arranged with cooperation inner conical surface close to one end of annular shoulder,
The cooperation male cone (strobilus masculinus) and cooperation inner conical surface corresponding matching.
The cone angle of above-mentioned cooperation inner conical surface is set as 15 ° ~ 75 °, and the cone angle of the cooperation male cone (strobilus masculinus) is set as 15 ° ~ 75 °.
Above-mentioned connector I uses pin end, and the pin end includes the linkage section I and linkage section II of coaxial arrangement, the company
It connects and is provided with external screw thread in section I, the internal screw thread with head cooperation, the cooperation inner conical surface setting are provided on the linkage section II
In the outer end face of linkage section II and the junction of internal screw thread inner hole.
Above-mentioned connector II is provided with following two mode: (1) connector II uses female connector, the female connector setting
For tubular structure, the internal screw thread of head cooperation is provided on the female connector；(2) connector II uses and I structure phase of connector
With pin end, the outer end of the connector II is equipped with transition box cupling, its axis direction is provided with interior spiral shell on the transition box cupling
Line, in order to realize the connection with other components.
Technical solution of the present invention further includes that the annular shoulder is provided with spanner square structure, institute far from one end of head
The length for stating spanner square structure is more than or equal to 10mm.
Preferably, the above-mentioned body of rod, head use martensitic stain less steel.
Beneficial effects of the present invention can obtain through the above scheme: 1, the configuration of the present invention is simple, design are reasonable, by using
Martensitic stain less steel is able to ascend the antiseptic property of sucker rod, does not need to carry out dipping lacquer antirust treatment, has environmental protection, low dirt
The advantages of dye.2, the present invention can reduced annular shoulder size, reduce forging by setting annular shoulder, connector I and connector II
On the basis of making deflection, by the cooperation of cooperation male cone (strobilus masculinus) and cooperation inner conical surface, annular shoulder and connector I and connector II are realized
Contact pre-tighten, guarantee connection tightness, prevent to loosen；3, center tap I of the present invention uses pin end, and connector II both may be used
Female connector can also be used using pin end, connection is flexible and convenient, design is reasonable, is worthy to be popularized.
It can be seen that the present invention has substantive distinguishing features outstanding and significant progress compared with prior art, implement
Beneficial effect be also obvious.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of embodiment 1 in the present invention；
The structural schematic diagram of embodiment 2 in Fig. 2 present invention；
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at A；
Wherein, 1 is transition box cupling, and 2 be head, and 3 be pin end, and 4 be spanner square structure, and 5 be the body of rod, and 6 be annular shoulder, and 7 are
Linkage section II, 8 be linkage section I, and 9 be female connector.
Specific embodiment:
For a better understanding of the present invention, embodiments of the present invention are explained in detail with reference to the accompanying drawing.
Specific embodiment:
Embodiment 1: the present invention provides a kind of stainless steel Anti-corrosion sucker rod, including the body of rod 5,5 left and right ends of the body of rod are respectively set
Head 2 and connector I and connector II, be provided with external screw thread in the head 2, the connector I and connector II respectively with the body of rod 5
The head 2 at both ends is threadedly coupled.The inside of two heads 2 is respectively arranged with annular shoulder 6, is provided on the annular shoulder 6
Cooperation male cone (strobilus masculinus), the connector I and connector II are respectively arranged with cooperation inner conical surface, the cooperation close to one end of annular shoulder 6
Male cone (strobilus masculinus) and cooperation inner conical surface corresponding matching.To guarantee that connector I and connector II are contacted and compressed with head 2, cooperation inner conical surface is matched
The cone angle for closing male cone (strobilus masculinus) is equal, and the cooperation inner conical surface, the cone angle value range for cooperating male cone (strobilus masculinus) are 15 ° ~ 75 °.
In the present embodiment, the connector I and connector II are all made of pin end 3, and the pin end 3 includes coaxial arrangement
Linkage section I 8 and linkage section II 7 are provided with external screw thread on the linkage section I 8, and the linkage section II 7 is provided with and head 2 cooperates
Internal screw thread, it is described cooperation inner conical surface be arranged in linkage section II 7 outer end face and internal screw thread inner hole junction.Outside connector II
End is equipped with transition box cupling 1, and the transition box cupling 1 is provided with internal screw thread along its axis direction.It can be realized by the design more
Connection between the section body of rod, to meet the oil well operation of different depth.
In addition, annular shoulder 6 is provided with spanner square structure 4 far from one end of head, to reduce in stainless steel forging process
Deflection, the length of spanner square structure 4 is less than conventional specification, at the same the length of the spanner square structure 4 need to meet greater than etc.
In 10mm.For the thickening amount in reduction stainless steel forging process, the deflection in forging process is reduced, in the present invention, annular
The diameter of shoulder 6 is much smaller than the diameter of conventional annular shoulder, additionally by design cooperation male cone (strobilus masculinus) and cooperation inner conical surface, connector I
It can be realized between annular shoulder 6 and between connector II and annular shoulder 6 and contact preload, to guarantee the tightness of connection,
It avoids generating and loosen.Preferably, the body of rod 5, head 2 use martensitic stain less steel.
The configuration of the present invention is simple, design rationally, by using the high-quality stainless steel of martensite type, are able to ascend the anti-of sucker rod
Rotten performance does not need to carry out dipping lacquer antirust treatment, has the advantages that environmental protection, low pollution.In addition, by setting annular shoulder 6, and
On the basis of reducing its size, reducing forging deformation amount, by design cooperation male cone (strobilus masculinus) and cooperation inner conical surface, ring can be realized
The contact with connector I and connector II of shape shoulder 6 pre-tightens, and guarantees the tightness of connection, prevents to loosen, and the present invention, which designs, to close
Reason, is worthy to be popularized.
Embodiment 2: the present embodiment and the distinctive points of embodiment 1 are that connector I uses pin end 3, and connector II is connect using mother
First 9.Wherein, the pin end 3 includes the linkage section I 8 and linkage section II 7 of coaxial arrangement, is provided on the linkage section I 8 outer
Screw thread, the linkage section II 7 are provided with the internal screw thread cooperated with head 2, and the outer of linkage section II is arranged in the cooperation inner conical surface
The junction of end face and internal screw thread inner hole.The female connector 9 is set as tubular structure, and the female connector 9 is provided with matches with head 2
The junction of outer end face Yu internal screw thread inner hole is arranged in the internal screw thread of conjunction, the cooperation inner conical surface of the female connector 9.It is set by this
Meter can be realized connecting certainly for oil pumping club shaft, to meet the oil well operation of different depth.
The above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made within the essential scope of the present invention also should belong to of the invention
Protection scope.
Claims (8)
1. a kind of stainless steel Anti-corrosion sucker rod, including the body of rod, the both ends of the body of rod are respectively arranged with head, it is characterised in that:
Further include connector I and connector II, be provided with external screw thread in the head, the connector I and connector II respectively with body of rod both ends
Head is threadedly coupled, and is respectively arranged with annular shoulder on the inside of two heads, cooperation male cone (strobilus masculinus) is provided on the annular shoulder,
The connector I and connector II are respectively arranged with cooperation inner conical surface, the cooperation male cone (strobilus masculinus) and cooperation close to one end of annular shoulder
Inner conical surface corresponding matching.
2. stainless steel Anti-corrosion sucker rod as described in claim 1, it is characterised in that: the cone angle of the cooperation inner conical surface is set as
15 ° ~ 75 °, the cone angle of the cooperation male cone (strobilus masculinus) is set as 15 ° ~ 75 °.
3. stainless steel Anti-corrosion sucker rod as claimed in claim 1 or 2, it is characterised in that: the connector I uses pin end, institute
The linkage section I and linkage section II that pin end includes coaxial arrangement are stated, is provided with external screw thread, the linkage section on the linkage section I
The internal screw thread with head cooperation is provided on II, the outer end face and internal screw thread inner hole of linkage section II is arranged in the cooperation inner conical surface
Junction.
4. stainless steel Anti-corrosion sucker rod as claimed in claim 3, it is characterised in that: the connector II uses female connector, described
Female connector is set as tubular structure, and the internal screw thread with head cooperation, the cooperation inner conical surface setting are provided on the female connector
In the junction of outer end face and internal screw thread inner hole.
5. stainless steel Anti-corrosion sucker rod as claimed in claim 3, it is characterised in that: the connector II uses and the connector I
The identical pin end of structure.
6. stainless steel Anti-corrosion sucker rod as claimed in claim 5, it is characterised in that: the outer end of the connector II is equipped with transition
Box cupling, the transition box cupling are provided with internal screw thread along its axis direction.
7. stainless steel Anti-corrosion sucker rod as claimed in claim 1 or 2, it is characterised in that: the annular shoulder is far from head
One end is provided with spanner square structure, and the length of the spanner square structure is more than or equal to 10mm.
8. stainless steel Anti-corrosion sucker rod as claimed in claim 1 or 2, it is characterised in that: the body of rod, head use martensite
Type stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955614.3A CN109025841A (en) | 2018-08-21 | 2018-08-21 | A kind of stainless steel Anti-corrosion sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955614.3A CN109025841A (en) | 2018-08-21 | 2018-08-21 | A kind of stainless steel Anti-corrosion sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109025841A true CN109025841A (en) | 2018-12-18 |
Family
ID=64627352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810955614.3A Pending CN109025841A (en) | 2018-08-21 | 2018-08-21 | A kind of stainless steel Anti-corrosion sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109025841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096305A (en) * | 2020-11-05 | 2020-12-18 | 东营市三和石油装备有限公司 | Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1285404C (en) * | 1985-11-29 | 1991-07-02 | Vladimir I. Timofeev | Method for making sucker rods |
| RU2376443C1 (en) * | 2008-06-11 | 2009-12-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Pump bar manufacturing method |
| CN202745708U (en) * | 2012-08-13 | 2013-02-20 | 山东九环石油机械有限公司 | Anti-corrosion sucker rod with plasticized modified epoxy powder layer |
| CN203531767U (en) * | 2013-08-29 | 2014-04-09 | 杨林 | Eight-tooth cylinder threaded connector |
| CN104295244A (en) * | 2014-09-30 | 2015-01-21 | 胜利油田胜机石油装备有限公司 | Combined antiseptic and wear-resistant sucker rod |
| CN205135441U (en) * | 2015-11-27 | 2016-04-06 | 东营瑞奥工贸有限责任公司 | Novel half cladding sucker rod of polyethylene |
| CA2891148A1 (en) * | 2015-05-13 | 2016-11-13 | Wei Xie | Sucker rod |
| CN206513312U (en) * | 2017-02-06 | 2017-09-22 | 中国石油集团渤海石油装备制造有限公司 | One kind cladding sucker rod |
| CN208749306U (en) * | 2018-08-21 | 2019-04-16 | 山东九环石油机械有限公司 | A kind of stainless steel Anti-corrosion sucker rod |
-
2018
- 2018-08-21 CN CN201810955614.3A patent/CN109025841A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1285404C (en) * | 1985-11-29 | 1991-07-02 | Vladimir I. Timofeev | Method for making sucker rods |
| RU2376443C1 (en) * | 2008-06-11 | 2009-12-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Pump bar manufacturing method |
| CN202745708U (en) * | 2012-08-13 | 2013-02-20 | 山东九环石油机械有限公司 | Anti-corrosion sucker rod with plasticized modified epoxy powder layer |
| CN203531767U (en) * | 2013-08-29 | 2014-04-09 | 杨林 | Eight-tooth cylinder threaded connector |
| CN104295244A (en) * | 2014-09-30 | 2015-01-21 | 胜利油田胜机石油装备有限公司 | Combined antiseptic and wear-resistant sucker rod |
| CA2891148A1 (en) * | 2015-05-13 | 2016-11-13 | Wei Xie | Sucker rod |
| CN205135441U (en) * | 2015-11-27 | 2016-04-06 | 东营瑞奥工贸有限责任公司 | Novel half cladding sucker rod of polyethylene |
| CN206513312U (en) * | 2017-02-06 | 2017-09-22 | 中国石油集团渤海石油装备制造有限公司 | One kind cladding sucker rod |
| CN208749306U (en) * | 2018-08-21 | 2019-04-16 | 山东九环石油机械有限公司 | A kind of stainless steel Anti-corrosion sucker rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096305A (en) * | 2020-11-05 | 2020-12-18 | 东营市三和石油装备有限公司 | Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof |
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