CN112096305A - Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof - Google Patents
Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof Download PDFInfo
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- CN112096305A CN112096305A CN202011219700.1A CN202011219700A CN112096305A CN 112096305 A CN112096305 A CN 112096305A CN 202011219700 A CN202011219700 A CN 202011219700A CN 112096305 A CN112096305 A CN 112096305A
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- stainless steel
- sucker rod
- rod body
- steel sheets
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 77
- 239000010935 stainless steel Substances 0.000 title claims abstract description 77
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 22
- 238000005253 cladding Methods 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000012946 outsourcing Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- E21B17/1085—Wear protectors; Blast joints; Hard facing
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)
- Laminated Bodies (AREA)
Abstract
The invention discloses a solid steel sucker rod wrapped with stainless steel and a preparation method thereof, and relates to the technical field of petroleum operation machinery, which comprises a sucker rod body, wherein a first joint and a second joint are respectively arranged at two ends of the sucker rod body, two semicircular stainless steel sheets are wrapped at the outer side of the sucker rod body, the unfolded shape of the two semicircular stainless steel sheets is rectangular, and the length of the two semicircular stainless steel sheets is equal to that of the sucker rod body.
Description
Technical Field
The invention relates to the technical field of petroleum operation machinery, in particular to a stainless steel solid sucker rod wrapped with stainless steel and a preparation method thereof.
Background
In the process of petroleum exploitation, a sucker rod is a main pipe rod device for pumping oil of an oil well pumping unit, the sucker rod is always under the action of hydrogen sulfide, carbon dioxide, dissolved oxygen and conductive underground water, and in some high-temperature inclined wells heated by steam, the corrosion resistance and the wear resistance of the sucker rod under a high-temperature condition (200-300 ℃) can be greatly reduced; moreover, the sucker rod is constantly in dynamic pulling, pressing, bending and twisting environments in the production process and is subjected to the action of fluid flow and abrasive wear, so that the corrosion of the sucker rod is aggravated, and the corrosion fatigue, the erosion corrosion and the like are easily generated. At present, in order to improve the anticorrosion capability of the sucker rod, a protective layer is generally added on the surface of the sucker rod, and if the surface of the sucker rod is coated by plastics, polyethylene, polyvinyl chloride and the like to form a half-coated sucker rod, the failure of the sucker rod caused by eccentric wear and corrosion can be effectively solved.
However, when many half-coated sucker rods are used, because the outer coating layer is generally manufactured by coating materials such as polyethylene on the rod body of the sucker rod, the materials can prevent the produced liquid of the oil well from corroding the rod body, but the wear resistance of the polyethylene materials can solve the problem of eccentric wear damage of the rod body; if the bulletin number is "CN 205840797U", the name is "modified nylon clad anticorrosive sucker rod pole head and apparatus for producing" Chinese utility model patent, including the tip body of rod, flange, spanner side, external screw thread circular bead, terminal surface, stress unloading groove and screw thread, the tip of the tip body of rod passes through flange joint spanner side, and spanner side connects the external screw thread circular bead, and stress unloading groove is connected to the terminal surface of external screw thread circular bead, and stress unloading groove's outer end is equipped with the screw thread, the surface of the tip body of rod, flange, spanner side, external screw thread circular bead be equipped with the coating, the thickness of coating is 2-3mm, and coating length 20-50mm, just the tip body of rod, flange, spanner side, external screw thread circular bead, stress unloading groove and screw thread structure as an organic whole. The utility model discloses a beneficial effect does: the sucker rod head adopts the modified nylon coating layer, thus thoroughly solving the problems of corrosion and abrasion of the sucker rod head part, improving the hardness and toughness of the sucker rod head after the coating layer is added, avoiding the damage of the coating layer caused by the load of operation construction, shackle removal and elevator punching; in addition, through adopting throwing ball processing apparatus and the device of moulding plastics, can realize the cladding to the sucker rod pole head, because sucker rod pole head position is irregular structure, accomplishes moulding plastics through the mould of the device of moulding plastics, forms holistic cladding, and its hardness, toughness and body of rod cohesion are better. However, when the sucker rod head adopts the modified nylon coating layer, the coating layer is made of soft material, so that tiny slippage and deformation are easily caused under the condition of external force; the operation elevator cannot be used due to the loosening and displacement of the outer wrapping layer, and meanwhile, the rod body is exposed due to the displacement and does not have the effects of corrosion resistance and eccentric wear resistance; when the pump is used continuously, the damaged and fallen polyethylene material falls into a pump barrel of the sucker rod to cause pump clamping or cause that a fixed valve cannot be closed to cause pump efficiency reduction; the bulge of the outer cladding of the semi-cladding sucker rod can also cause the section of the oil duct to be reduced, so that the pressure of the production string is increased, the safety production factor is not facilitated, and the sucker rod can not be reused after being used.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to solve the problem that the sucker rod head in the prior art adopts a modified nylon coating layer to easily cause tiny slippage and deformation under the condition of being subjected to external force; the steel solid sucker rod wrapped with stainless steel and the preparation method thereof are provided, which solve the technical problems that the operation elevator cannot be used due to the loosening and displacement of the outer wrapping layer, and the rod body is exposed due to the displacement and does not have the effects of corrosion resistance and eccentric wear resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a solid sucker rod of steel of outsourcing stainless steel, includes the sucker rod body, the both ends of sucker rod body are equipped with first joint and second respectively and connect, the cladding has two semi-circular stainless steel sheets in the sucker rod body outside, just two semi-circular stainless steel sheets expand the shape and be the rectangle, two semi-circular stainless steel sheet length equals with sucker rod body length.
Preferably, the thickness of the two semicircular stainless steel sheets is 0.5-1.5 mm.
The invention also provides a preparation method of the stainless steel solid sucker rod wrapped with the stainless steel, which comprises the following steps:
(a) prefabricating two semicircular stainless steel sheets with the same radian as the outer wall of the sucker rod body;
(b) attaching two stainless steel sheets to the sucker rod body;
(c) attaching two stainless steel sheets to the sucker rod body through extrusion equipment;
(d) welding butt seams of two stainless steel sheets by using argon arc welding;
(e) and finally, grinding and polishing the welding position.
Compared with the prior art, the invention has the beneficial effects that:
1. the semi-coated sucker rod is superior to the traditional semi-coated sucker rod made of polyethylene and other materials, has wear resistance, solves the problem of deformation, and has higher priority ratio;
2. the stainless steel cladding layer has high hardness and better wear resistance compared with the traditional full spray welding oil pumping pipe;
3. the manufacturing method of the full spray welding metal sucker rod is superior to that of the traditional full spray welding metal sucker rod, and is simple, safe and reliable;
4. the stainless steel sheet is used as the outer lining for anticorrosion treatment outside, and compared with the traditional half-coating plasticizer chemical treatment, the full-spray welding chemical treatment has the advantages and benefits of reducing environmental pollution.
Drawings
FIG. 1 is a cross-sectional view of a stainless steel solid sucker rod wrapped with stainless steel according to the present invention;
fig. 2 is a state diagram of a stainless steel solid sucker rod coated with stainless steel according to the present invention after corrosion.
In the figure: 1-sucker rod body, 2-first joint, 3-second joint, 4-stainless steel sheet.
Detailed Description
The invention will be described in detail by way of example with reference to the accompanying drawings, which form a part hereof, and in which it is to be understood that the described embodiments are by way of illustration only, and not by way of limitation.
Example 1
As shown in figure 1, a solid sucker rod of steel of outsourcing stainless steel, including sucker rod body 1, the both ends of sucker rod body 1 are equipped with first joint 2 and second respectively and connect 3, the cladding of the 1 outside of sucker rod body has two semi-circular stainless steel sheets 4, just two semi-circular stainless steel sheets 4 expand the shape and be the rectangle, two semi-circular stainless steel sheets 4 length equals with sucker rod body 1 length, two semi-circular stainless steel sheets 4's thickness is 0.5 mm.
Among this technical scheme, through two semicircular stainless steel sheets 4 of cladding in the sucker rod body 1 outside, do benefit to the corrosion resistance and the wearability that improve sucker rod body 1, use stainless steel sheet 4 as outer lining anticorrosive treatment, have the advantage and the benefit that reduces environmental pollution than traditional half cladding plasticizer chemical treatment, full spray welding chemical treatment.
The invention also provides a preparation method of the stainless steel solid sucker rod wrapped with the stainless steel, which comprises the following steps:
(a) prefabricating two semicircular stainless steel sheets 4 with the same radian as the outer wall of the sucker rod body 1;
(b) two stainless steel sheets 4 are attached to the sucker rod body 1;
(c) attaching two stainless steel sheets 4 to the sucker rod body 1 through extrusion equipment;
(d) welding butt seams of the two stainless steel sheets 4 by using argon arc welding;
(e) and finally, grinding and polishing the welding position.
Example 2
The utility model provides a solid sucker rod of steel of outsourcing stainless steel, includes sucker rod body 1, the both ends of sucker rod body 1 are equipped with first joint 2 and second respectively and connect 3, the cladding has two semi-circular stainless steel sheets 4 in the 1 outside of sucker rod body, just two semi-circular stainless steel sheets 4 expand the shape and be the rectangle, two semi-circular stainless steel sheets 4 length and sucker rod body 1 length equal, the thickness of two semi-circular stainless steel sheets 4 is 1 mm.
The invention also provides a preparation method of the stainless steel solid sucker rod wrapped with the stainless steel, which comprises the following steps:
(a) prefabricating two semicircular stainless steel sheets 4 with the same radian as the outer wall of the sucker rod body 1;
(b) two stainless steel sheets 4 are attached to the sucker rod body 1;
(c) attaching two stainless steel sheets 4 to the sucker rod body 1 through extrusion equipment;
(d) welding butt seams of the two stainless steel sheets 4 by using argon arc welding;
(e) and finally, grinding and polishing the welding position.
Example 3
The utility model provides a solid sucker rod of steel of outsourcing stainless steel, includes sucker rod body 1, the both ends of sucker rod body 1 are equipped with first joint 2 and second respectively and connect 3, the cladding has two semi-circular stainless steel sheets 4 in the 1 outside of sucker rod body, just two semi-circular stainless steel sheets 4 expand the shape and be the rectangle, two semi-circular stainless steel sheets 4 length and sucker rod body 1 length equal, the thickness of two semi-circular stainless steel sheets 4 is 1.5 mm.
The invention also provides a preparation method of the stainless steel solid sucker rod wrapped with the stainless steel, which comprises the following steps:
(a) prefabricating two semicircular stainless steel sheets 4 with the same radian as the outer wall of the sucker rod body 1;
(b) two stainless steel sheets 4 are attached to the sucker rod body 1;
(c) attaching two stainless steel sheets 4 to the sucker rod body 1 through extrusion equipment;
(d) welding butt seams of the two stainless steel sheets 4 by using argon arc welding;
(e) and finally, grinding and polishing the welding position.
Compared with the prior art, the invention has the beneficial effects that: the semi-coated sucker rod is superior to the traditional semi-coated sucker rod made of polyethylene and other materials, has wear resistance, solves the problem of deformation, and has higher priority ratio; the stainless steel sheet is used as the outer lining for anticorrosion treatment outside, and compared with the traditional half-coating plasticizer chemical treatment, the full-spray welding chemical treatment has the advantages and benefits of reducing environmental pollution.
The products prepared in examples 1 to 3 were tested for comparison with the prior art, and the experimental conditions, results and main properties were compared as follows:
(I) experimental conditions:
1. grinding the examples 1-3 and the comparative examples 1-2 by using 20-mesh sand paper at the same rotating speed;
2. the samples of examples 1-3 and comparative examples 1-2 were placed in a salt spray tester and continuously etched for 96 hours.
As shown in table 1:
(II) experimental results:
as shown in figure 2, the surface of the stainless steel-coated sucker rod is smooth and flat, and has no obvious corrosion trace.
(III) comparing the performances:
table 2:
it can be seen from this table that the thermal expansion coefficient, wear resistance coefficient and corrosion rate of examples 1-3 are superior to those of comparative examples 1-2, and compared with the prior art, the external use of stainless steel sheet as the outer lining corrosion prevention treatment has the advantage and advantage of reducing environmental pollution compared with the conventional half-coating plasticizer chemical treatment and full spray welding chemical treatment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the application concepts of the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (3)
1. The utility model provides a solid sucker rod of steel of outsourcing stainless steel, includes sucker rod body (1), the both ends of sucker rod body (1) are equipped with first joint (2) and second respectively and connect (3), its characterized in that, sucker rod body (1) outside cladding has two semi-circular stainless steel sheets (4), just two semi-circular stainless steel sheets (4) expand the shape and be the rectangle, two semi-circular stainless steel sheets (4) length equals with sucker rod body (1) length.
2. The stainless steel-clad steel solid sucker rod of claim 1, wherein the two semicircular stainless steel sheets (4) have a thickness of 0.5-1.5 mm.
3. The method for manufacturing a stainless steel clad steel solid sucker rod of any one of claims 1-2, which comprises the following steps:
(a) prefabricating two semicircular stainless steel sheets (4) with the same radian as the outer wall of the sucker rod body (1);
(b) two stainless steel sheets (4) are attached to the sucker rod body (1);
(c) attaching two stainless steel sheets (4) to the sucker rod body (1) through extrusion equipment;
(d) welding butt seams of the two stainless steel sheets (4) by using argon arc welding;
(e) and finally, grinding and polishing the welding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219700.1A CN112096305A (en) | 2020-11-05 | 2020-11-05 | Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219700.1A CN112096305A (en) | 2020-11-05 | 2020-11-05 | Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112096305A true CN112096305A (en) | 2020-12-18 |
Family
ID=73785388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011219700.1A Pending CN112096305A (en) | 2020-11-05 | 2020-11-05 | Stainless steel solid sucker rod wrapped with stainless steel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112096305A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202047760U (en) * | 2011-01-28 | 2011-11-23 | 济源市石油机械有限公司 | Cathode protector of sucker rod |
| CN203476224U (en) * | 2013-10-08 | 2014-03-12 | 王树杰 | Macromolecule abrasion-resistant and anti-corrosion sucker rod |
| CN207377507U (en) * | 2017-10-26 | 2018-05-18 | 宁夏长庆石油机械制造有限责任公司 | A kind of Anti-wear oil pumping rod |
| CN207377506U (en) * | 2017-10-26 | 2018-05-18 | 宁夏长庆石油机械制造有限责任公司 | A kind of anti-corrosion pumping polished rod |
| CN109025841A (en) * | 2018-08-21 | 2018-12-18 | 山东九环石油机械有限公司 | A kind of stainless steel Anti-corrosion 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 |
| CN110821419A (en) * | 2019-12-22 | 2020-02-21 | 山东未来石油技术开发有限公司 | High-temperature-resistant, corrosion-resistant and hydrogen sulfide-resistant composite sucker rod |
-
2020
- 2020-11-05 CN CN202011219700.1A patent/CN112096305A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202047760U (en) * | 2011-01-28 | 2011-11-23 | 济源市石油机械有限公司 | Cathode protector of sucker rod |
| CN203476224U (en) * | 2013-10-08 | 2014-03-12 | 王树杰 | Macromolecule abrasion-resistant and anti-corrosion sucker rod |
| CN207377507U (en) * | 2017-10-26 | 2018-05-18 | 宁夏长庆石油机械制造有限责任公司 | A kind of Anti-wear oil pumping rod |
| CN207377506U (en) * | 2017-10-26 | 2018-05-18 | 宁夏长庆石油机械制造有限责任公司 | A kind of anti-corrosion pumping polished rod |
| CN109025841A (en) * | 2018-08-21 | 2018-12-18 | 山东九环石油机械有限公司 | A kind of stainless steel Anti-corrosion 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 |
| CN110821419A (en) * | 2019-12-22 | 2020-02-21 | 山东未来石油技术开发有限公司 | High-temperature-resistant, corrosion-resistant and hydrogen sulfide-resistant composite sucker rod |
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Application publication date: 20201218 |