CN101936138A - Oil-sucking polished rod and production method thereof - Google Patents
Oil-sucking polished rod and production method thereof Download PDFInfo
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- CN101936138A CN101936138A CN2010102702710A CN201010270271A CN101936138A CN 101936138 A CN101936138 A CN 101936138A CN 2010102702710 A CN2010102702710 A CN 2010102702710A CN 201010270271 A CN201010270271 A CN 201010270271A CN 101936138 A CN101936138 A CN 101936138A
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- oil pumping
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- pumping polish
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Abstract
The invention provides an oil-sucking polished rod and a production method thereof, which relates to an oil sucking machine. The invention aims at providing an oil-sucking polished rod with high corrosion resistance and the production method thereof. The oil-sucking polished rod comprises a rod body, wherein both ends of the rod body are respectively provided with a rod head, a threaded connection part is arranged on each rod head, and a tungsten-base amorphous alloy layer covers the outer surfaces of the rod body and the rod heads.
Description
Technical field
The present invention relates to a kind of oil pumper equipment, particularly relate to a kind of oil pumping polish rod and production method thereof.
Background technology
Rod-pumped well all is the main oil production method in domestic and international oil field all the time, in the sucker rod that rod-pumped well uses, the different sucker rod of a Gent is arranged, and promptly oil pumping polish rod connects oil pumper on it, and the lower end connects rod string.Along with current field produces enters the later stage, being on the increase of dark oil well, heavy oil wells, high water-cut well and high salinity well, the effect of oil pumping polish rod and performance are day by day important.Yet the actual working environment of oil pumping polish rod is but very abominable, not only will bear the load that strengthens day by day, and will bear the H in the well liquid
2S, CO
2, Cl
-, H
2The comprehensive corrosiveness of O etc., common oil pumping polish rod causes the packing box sealing wear, crude oil leakage using month surface of less than the macro-corrosion hole will occur, not only reduce output but also environment is caused very big pollution, produce to the oil field and bring enormous economic loss.Therefore, present oil pumping polish rod must improve constantly aspect corrosion resistance, to satisfy constantly abominable Service Environment.
Summary of the invention
The technical problem to be solved in the present invention provides good oil pumping polish rod of a kind of corrosion resistance and production method thereof.
Oil pumping polish rod of the present invention comprises the body of rod, and the two ends of the described body of rod are respectively equipped with the bar head, and described bar head is provided with the part that is threaded, and the external surface of the wherein said body of rod and bar head is covered with a tungsten based amorphous attitude alloy-layer.
Oil pumping polish rod of the present invention, the junction of wherein said one of them the bar head and the body of rod is provided with jumping-up portion.
Oil pumping polish rod of the present invention, the thickness of wherein said tungsten based amorphous attitude alloy-layer are 50～80 μ m.
Oil pumping polish rod of the present invention, the quality percentage composition of wherein said tungsten based amorphous attitude composition that alloy-layer comprises: tungsten 10%～55%, nickel 15%～65%, iron 10%～15%, cobalt 6%～12%, all the other are phosphorus and impurity.
Oil pumping polish rod of the present invention, wherein said tungsten based amorphous attitude alloy-layer is that long-range is unordered, the structure of shortrange order.
Oil pumping polish rod of the present invention, the material of the wherein said body of rod and bar head is a high strength alloy steel.
The production method of oil pumping polish rod of the present invention, carry out according to following steps:
(1) raw material is smelted, molten steel is poured into steel ingot, be rolled into round steel, air cooling obtains the high-strength alloy bar to room temperature;
(2) with the high-strength alloy Steel Bar During through 680～720 ℃ of partial annealings, cold-drawn is to the oil pumping polish rod full-length after cold 2 hours for stove, alignment obtains alloy bar material;
(3) alloy bar material with step (2) is heated to 950 ℃～1050 ℃ normalizings through induction coil, is heated to 410 ℃～450 ℃ temper subsequently, obtains the oil pumping polish rod crude green body;
(4) two ends bar head is all squeezed screw thread, obtain the oil pumping polish rod blank;
(5) to the surface of oil pumping polish rod blank carry out oil removing, the rust cleaning after, be soaked in 5% dilution heat of sulfuric acid and carried out activation processing in 1～2 minute, immerse the method that adopts electro-deposition in the galvanic deposition cell then and make the oil pumping polish rod body of rod and two ends screw thread place coat the tungsten based amorphous attitude alloy of one deck.
The component of electrodeposit liquid in the production method of oil pumping polish rod of the present invention, wherein said step (5): sodium tungstate 18～155g/L, nickelous sulfate 30～140g/L, inferior sodium phosphate 35～210g/L, citric acid 60～100g/L; Current density: 10～220mA/cm
3PH value: 7.5～9.5; Temperature: 25～80 ℃.
The production method of oil pumping polish rod of the present invention is wherein earlier carried out jumping-up to oil pumping polish rod crude green body one end before in step (4), forms the thick portion of a pier.
The production method of oil pumping polish rod of the present invention comprises that also step (6) is incubated 0.5～2 hour with the oil pumping polish rod after the electrodeposition process down at 150 ℃～700 ℃ and heat-treats.
Oil pumping polish rod of the present invention and production method difference from prior art thereof are that oil pumping polish rod of the present invention and production method thereof are to have applied the tungsten based amorphous attitude alloy-layer of one deck simultaneously on body of rod surface and bar head, this tungsten based amorphous attitude alloy-layer has advantages of good abrasion and corrosion resistance, can make the use of oil pumping polish rod of the present invention under the serious bad working environments of well liquid high salinity, common oil pumping polish rod corrosive wear.
The body of rod and the bar head that adopt high strength alloy steel to make in oil pumping polish rod of the present invention and the production method thereof can satisfy the oil pumping polish rod load that increases day by day when present rod-pumped well recovers the oil; Simultaneously, tungsten based amorphous attitude alloy-layer adopts the method for electro-deposition to be coated in the surface of oil pumping polish rod, and tungsten electrodeposition base non gold state alloying technology is a kind of process for cleanly preparing, alleviates the pollution to environment.
Below in conjunction with accompanying drawing oil pumping polish rod of the present invention and production method thereof are described further.
Description of drawings
Fig. 1 is the front view of oil pumping polish rod of the present invention.
The specific embodiment
Produce oil pumping polish rod of the present invention according to the following step:
(1) raw material is smelted in converter, molten steel is poured into steel ingot, be rolled into round steel, air cooling obtains high-strength alloy bar 20CrMo to room temperature;
(2) with the high-strength alloy Steel Bar During through 680 ℃ of partial annealings, cold-drawn is to the oil pumping polish rod full-length after cold 2 hours for stove, the oil pumping polish rod full-length has plurality of specifications such as 8m, 9.14m, 11m, alignment obtains alloy bar material;
(3) alloy bar material with step (2) is heated to 1050 ℃ of normalizings through induction coil, is heated to 450 ℃ of temper subsequently, obtains the oil pumping polish rod crude green body;
(4) oil pumping polish rod crude green body one end is carried out jumping-up, form the thick portion of a pier; Two ends bar head is all squeezed screw thread, obtain the oil pumping polish rod blank;
(5) electrochemical deoiling is carried out on the surface of oil pumping polish rod blank, the use abrasive belt grinding machine is polished after the rust cleaning, be soaked in 5% dilution heat of sulfuric acid and carried out activation processing in 1～2 minute, immersing the method that adopts electro-deposition in the galvanic deposition cell then makes the oil pumping polish rod body of rod and two ends screw thread place coat the tungsten based amorphous attitude alloy of one deck, the component of electrodeposit liquid: sodium tungstate 155g/L, nickelous sulfate 30g/L, inferior sodium phosphate 210g/L, citric acid 60g/L; Current density: 220mA/cm
3PH value: 8; Temperature: 25 ℃.
(6) oil pumping polish rod after the electrodeposition process is incubated 2 hours down at 150 ℃ and heat-treats, microhardness reaches 900～1300HV after the heat treatment.
The product oil pumping polish rod that obtains as shown in Figure 1, comprise the body of rod 1, the two ends of the body of rod 1 are provided with bar head 2, right-hand member bar head 2 is processed with jumping-up portion 4 with the junction of the body of rod 1, be processed with the part that is threaded on the bar head 2, the external surface of the body of rod 1 and bar head 2 is covered with a tungsten based amorphous attitude alloy-layer 3, and the thickness of tungsten based amorphous attitude alloy-layer 3 is 80 μ m.The quality percentage composition of composition that tungsten based amorphous attitude alloy-layer 3 comprises: tungsten 55%, nickel 15%, iron 10%, cobalt 12%, all the other are phosphorus and impurity, tungsten based amorphous attitude alloy-layer 3 is that long-range is unordered, the structure of shortrange order.
Produce oil pumping polish rod of the present invention according to the following step:
(1) raw material is smelted in converter, molten steel is poured into steel ingot, be rolled into round steel, air cooling obtains high-strength alloy bar 20CrMo to room temperature;
(2) with the high-strength alloy Steel Bar During through 720 ℃ of partial annealings, cold-drawn is to the oil pumping polish rod full-length after cold 2 hours for stove, alignment obtains alloy bar material;
(3) alloy bar material with step (2) is heated to 950 ℃ of normalizings through induction coil, is heated to 410 ℃ of temper subsequently, obtains the oil pumping polish rod crude green body;
(4) oil pumping polish rod crude green body one end is carried out jumping-up, form the thick portion of a pier; Two ends bar head is all squeezed screw thread, obtain the oil pumping polish rod blank;
(5) electrochemical deoiling is carried out on the surface of oil pumping polish rod blank, the use abrasive belt grinding machine is polished after the rust cleaning, be soaked in 5% dilution heat of sulfuric acid and carried out activation processing in 1～2 minute, immersing the method that adopts electro-deposition in the galvanic deposition cell then makes the oil pumping polish rod body of rod and two ends screw thread place coat the tungsten based amorphous attitude alloy of one deck, the component of electrodeposit liquid: sodium tungstate 18g/L, nickelous sulfate 140g/L, inferior sodium phosphate 35g/L, citric acid 100g/L; Current density: 10mA/cm
3PH value: 9; Temperature: 80 ℃.
(6) oil pumping polish rod after the electrodeposition process is incubated 0.5 hour down at 700 ℃ and heat-treats, microhardness reaches 900～1300HV after the heat treatment.
The product oil pumping polish rod that obtains comprises the body of rod, the two ends of the body of rod are provided with the bar head, and the junction of the right-hand member bar head and the body of rod is processed with jumping-up portion, are processed with the part that is threaded on the bar head, the external surface of the body of rod and bar head is covered with a tungsten based amorphous attitude alloy-layer, and the thickness of tungsten based amorphous attitude alloy-layer is 50 μ m.The quality percentage composition of tungsten based amorphous attitude composition that alloy-layer comprises: tungsten 10%, nickel 65%, iron 15%, cobalt 6%, all the other are phosphorus and impurity, tungsten based amorphous attitude alloy-layer is that long-range is unordered, the structure of shortrange order.
Under laboratory environment, salinity: 41670mg/L, temperature: 60 ℃, flow velocity 1m/s, test period 3d has carried out 10%CO to oil pumping polish rod in the foregoing description and common oil pumping polish rod matrix (20CrMo oil pumping polish rod) respectively
2With saturated CO
2Anticorrosive contrast test, the result is as follows:
| Sample | 10％CO 2Corrosion rate (mm/a) | Saturated CO 2Corrosion rate (mm/a) |
| Common oil pumping polish rod | 0.2550 | 1.7124 |
| |
0.0869 | 0.1045 |
| |
0.0607 | 0.0187 |
The corrosion resistance that can find the oil pumping polish rod produced by this patent method from above experimental result is greatly improved.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. oil pumping polish rod, comprise the body of rod (1), the two ends of the described body of rod (1) are respectively equipped with bar head (2), and described bar head (2) is provided with the part that is threaded, and it is characterized in that: the external surface of the described body of rod (1) and bar head (2) is covered with a tungsten based amorphous attitude alloy-layer (3).
2. oil pumping polish rod according to claim 1 is characterized in that: described one of them bar head (2) is provided with jumping-up portion (4) with the junction of the body of rod (1).
3. oil pumping polish rod according to claim 2 is characterized in that: the thickness of described tungsten based amorphous attitude alloy-layer (3) is 50～80 μ m.
4. oil pumping polish rod according to claim 3 is characterized in that: described tungsten based amorphous attitude alloy-layer (3) comprises the quality percentage composition of composition: tungsten 10%～55%, and nickel 15%～65%, iron 10%～15%, cobalt 6%～12%, all the other are phosphorus and impurity.
5. oil pumping polish rod according to claim 4 is characterized in that: described tungsten based amorphous attitude alloy-layer (3) is unordered for long-range, the structure of shortrange order.
6. oil pumping polish rod according to claim 5 is characterized in that: the material of the described body of rod (1) and bar head (2) is a high strength alloy steel.
7. the production method of an oil pumping polish rod, carry out according to following steps:
(1) raw material is smelted, molten steel is poured into steel ingot, be rolled into round steel, air cooling obtains the high-strength alloy bar to room temperature;
(2) with the high-strength alloy Steel Bar During through 680～720 ℃ of partial annealings, cold-drawn is to the oil pumping polish rod full-length after cold 2 hours for stove, alignment obtains alloy bar material;
(3) alloy bar material with step (2) is heated to 950 ℃～1050 ℃ normalizings through induction coil, is heated to 410 ℃～450 ℃ temper subsequently, obtains the oil pumping polish rod crude green body;
(4) two ends bar head is all squeezed screw thread, obtain the oil pumping polish rod blank;
(5) to the surface of oil pumping polish rod blank carry out oil removing, the rust cleaning after, be soaked in 5% dilution heat of sulfuric acid and carried out activation processing in 1～2 minute, immerse the method that adopts electro-deposition in the galvanic deposition cell then and make the oil pumping polish rod body of rod and two ends screw thread place coat the tungsten based amorphous attitude alloy of one deck.
8. the production method of oil pumping polish rod according to claim 7 is characterized in that: the component of electrodeposit liquid in the described step (5): sodium tungstate 18～155g/L, nickelous sulfate 30～140g/L, inferior sodium phosphate 35～210g/L, citric acid 60～100g/L; Current density: 10～220mA/cm
3PH value: 7.5～9.5; Temperature: 25～80 ℃.
9. the production method of oil pumping polish rod according to claim 8 is characterized in that: wherein earlier oil pumping polish rod crude green body one end is carried out jumping-up before in step (4), form the thick portion of a pier.
10. according to the production method of one of the described oil pumping polish rod of claim 7 to 9, it is characterized in that: also comprise step (6) with the oil pumping polish rod after the electrodeposition process 150 ℃～700 ℃ down insulation heat-treated in 0.5～2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102702710A CN101936138A (en) | 2010-09-02 | 2010-09-02 | Oil-sucking polished rod and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102702710A CN101936138A (en) | 2010-09-02 | 2010-09-02 | Oil-sucking polished rod and production method thereof |
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| CN101936138A true CN101936138A (en) | 2011-01-05 |
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| CN2010102702710A Pending CN101936138A (en) | 2010-09-02 | 2010-09-02 | Oil-sucking polished rod and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728999A (en) * | 2011-04-07 | 2012-10-17 | 温永林 | Double-bolt-head screw machining process |
| CN103194773A (en) * | 2013-04-21 | 2013-07-10 | 胜利油田胜鑫防腐有限责任公司 | Anti-corrosion drill rod for well drilling of oilfield and anti-corrosion treatment process thereof |
| CN112359381A (en) * | 2020-11-18 | 2021-02-12 | 山东寿光市坤隆石油机械股份有限公司 | Pumping rod surface diffusion plating tungsten alloy coating and surface diffusion plating process thereof |
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| CN2911256Y (en) * | 2006-05-23 | 2007-06-13 | 张俊锋 | Tungsten-plated non-crystalline alloyed corrosion proof pumping rod |
| CN201056989Y (en) * | 2007-01-23 | 2008-05-07 | 王建平 | Tungsten plated amorphous alloy corrosion-proof oil pipe |
| CN201159052Y (en) * | 2007-12-20 | 2008-12-03 | 铁岭中油机械设备制造有限公司 | Tungsten alloy corrosion protection oil pumping lever |
| CN201190542Y (en) * | 2007-12-20 | 2009-02-04 | 铁岭中油机械设备制造有限公司 | Anti-corrosive pump rod joint of tungsten alloy |
| CN201218060Y (en) * | 2007-12-20 | 2009-04-08 | 铁岭中油机械设备制造有限公司 | Tungsten alloy anti-corrosion pumping rod |
| US20100206553A1 (en) * | 2009-02-17 | 2010-08-19 | Jeffrey Roberts Bailey | Coated oil and gas well production devices |
| CN201763593U (en) * | 2010-09-02 | 2011-03-16 | 北京百利时能源技术有限责任公司 | Oil pumping polished rod |
-
2010
- 2010-09-02 CN CN2010102702710A patent/CN101936138A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2911256Y (en) * | 2006-05-23 | 2007-06-13 | 张俊锋 | Tungsten-plated non-crystalline alloyed corrosion proof pumping rod |
| CN201056989Y (en) * | 2007-01-23 | 2008-05-07 | 王建平 | Tungsten plated amorphous alloy corrosion-proof oil pipe |
| CN201159052Y (en) * | 2007-12-20 | 2008-12-03 | 铁岭中油机械设备制造有限公司 | Tungsten alloy corrosion protection oil pumping lever |
| CN201190542Y (en) * | 2007-12-20 | 2009-02-04 | 铁岭中油机械设备制造有限公司 | Anti-corrosive pump rod joint of tungsten alloy |
| CN201218060Y (en) * | 2007-12-20 | 2009-04-08 | 铁岭中油机械设备制造有限公司 | Tungsten alloy anti-corrosion pumping rod |
| US20100206553A1 (en) * | 2009-02-17 | 2010-08-19 | Jeffrey Roberts Bailey | Coated oil and gas well production devices |
| CN201763593U (en) * | 2010-09-02 | 2011-03-16 | 北京百利时能源技术有限责任公司 | Oil pumping polished rod |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728999A (en) * | 2011-04-07 | 2012-10-17 | 温永林 | Double-bolt-head screw machining process |
| CN103194773A (en) * | 2013-04-21 | 2013-07-10 | 胜利油田胜鑫防腐有限责任公司 | Anti-corrosion drill rod for well drilling of oilfield and anti-corrosion treatment process thereof |
| CN103194773B (en) * | 2013-04-21 | 2016-01-20 | 胜利油田胜鑫防腐有限责任公司 | The anticorrosive drilling rod of oil field welldrilling and corrosion-resistant treatments technique thereof |
| CN112359381A (en) * | 2020-11-18 | 2021-02-12 | 山东寿光市坤隆石油机械股份有限公司 | Pumping rod surface diffusion plating tungsten alloy coating and surface diffusion plating process thereof |
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Address after: Two Beijing area 100102 Chaoyang District Wangjing new industrial zone in Lize Park No. 208 Building No. 3 room 3310 Applicant after: Beijing Bailishi Energy Technology Co., Ltd. Address before: 100101 Beijing Chaoyang District Anli Road, No. 60 hospital runfengdeshang court B block 1801 Applicant before: Beijing Bailishi Energy Technology Co., Ltd. |
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Application publication date: 20110105 |