CN201155302Y - Multiple-element co-seepage corrosion proof pumping rod - Google Patents
Multiple-element co-seepage corrosion proof pumping rod Download PDFInfo
- Publication number
- CN201155302Y CN201155302Y CNU2007201580936U CN200720158093U CN201155302Y CN 201155302 Y CN201155302 Y CN 201155302Y CN U2007201580936 U CNU2007201580936 U CN U2007201580936U CN 200720158093 U CN200720158093 U CN 200720158093U CN 201155302 Y CN201155302 Y CN 201155302Y
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- CN
- China
- Prior art keywords
- left end
- thermochemical treatment
- rod
- oil pumping
- polish rod
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- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a multi-element penetration anti-corrosion oil pumping polish rod, comprising a cylinder rod; the left end of the cylinder rod is provided with a left rod head; the left rod head is provided with external thread; the right end of the cylinder rod is provided with a right rod head which is provided with external thread; the left end of the right rod head is provided with a truncated cone; the left end of the truncated cone is provided with a multi-plane connecting body; the left end of the multi-plane connecting body is connected with an arc surface; the arc surface and the cylinder rod are connected with each other by a curved surface; the external surfaces of all structure of the polish rod is provided with the multi-element penetration layer. The multi-element penetration anti-corrosion oil pumping polish rod has the advantages that the multi-element penetration layer is taken as the anti-corrosion layer on the surface of the polish rod and the anti-corrosion layer contains the multi-element penetration layer which is formed by multiple metals and non-metal materials, therefore, the anti-corrosion layer has compact tissue, high hardness and high anti-corrosion performance, the service life of the polish rod is prolonged by 2-3.5 times compared with the service life of various existing polish rods, the production cost of the oilfield is greatly reduced, and a great deal of material waste is reduced, etc.
Description
Technical field
The utility model relates to the pumping unit parts that use the down-hole, oil field, is a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod.
Background technology
The oil pumping polish rod that uses in pumpingh well requires its smooth outer surface, organizes matter close, avoids task that oil is taken out of when sucker rod moves up and down so that finish.The oil pumping polish rod that generally uses roughly divides two classes now: a class is the oil pumping polish rod that adopts the hardness higher material to make, its smooth outer surface, and hardness is higher, and application life is longer relatively, but its major part is an imported product, costs an arm and a leg; Another kind of is to adopt common material to make polished rod, and at its surface plating wearing layer, wearing layer has chromium layer, nickel dam or nitration case etc. then, and because the difference of wearing layer material, its thickness is different.Find that through using the hardness of these wearing layers is all relatively low, and maintained at most about 1 year the application life of sucker rod, causes the cost of production in oil field higher.And there is fault of construction in these oil pumping polish rods, easily occur fracture in maintenance and installation is used, and bring more inconvenience to production.
Summary of the invention
The purpose of this utility model is, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod is provided, make it have higher Corrosion Protection and higher hardness, and change its structure, thereby improve polished rod just use the life-span, reduce the cost of production in oil field.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod, comprise cylindrical bar, the cylindrical bar left end is provided with left bar head, on the bar head of a left side external screw thread is set, the cylindrical bar right-hand member is provided with right bar head, on the right bar head external screw thread is set, right bar head left end is provided with round platform, the round platform left end is provided with many planes connector, the left end of many planes connector is connected with cambered surface, adopts curved surface to be connected between cambered surface and the cylindrical bar, on the entire infrastructure external surface of polished rod the multicomponent thermochemical treatment layer is set.The multicomponent thermochemical treatment layer is made of nitrogen, carbon, copper, chromium, molybdenum, lanthanum, cerium and P elements.The external diameter of round platform is greater than the outside dimensions of many planes connector.Many planes connector has four planes, and the left end on each plane all is connected with the height point place of cambered surface, and cambered surface has four, and outer edge was rounded after four cambered surfaces linked to each other, and circular outer edge is the minimum point of cambered surface.Four cambered surfaces outer size of back outer edge circular outer diameter that link to each other greater than four planes.The thickness of multicomponent thermochemical treatment layer is 10-50um, and hardness is 56-60HRC.The thickness of multicomponent thermochemical treatment layer is 7-9um, and hardness is 50-55HRC.
Advantage of the present utility model is: owing to adopt the corrosion-resistant coating of multicomponent thermochemical treatment layer as the polished rod surface, this layer contains multiple metal and nonmetallic substance mixes the co-penetration layer that comes from different backgrounds and possess different abilities, thereby what make corrosion-resistant coating organizes matter close, have higher hardness and higher decay resistance, so significantly reduced the cost of production in oil field than prolonging 2-3.5 the application life that has various polished rods now doubly the application life that can make polished rod; Because the structure to polished rod of the present utility model is improved, and has improved impact strength, has avoided the fracture accident of frequent appearance, has further improved the application life of polished rod, has reduced wide variety of materials waste etc.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model; Accompanying drawing 2 is A-A structure for amplifying schematic diagrames in the accompanying drawing 1; Accompanying drawing 3 is I portion structure for amplifying schematic diagrames in the accompanying drawing 1.
The specific embodiment
The contrast accompanying drawing is described further the utility model:
The left end of polished rod described in the utility model and right-hand member are reference with position shown in Figure 1.
Oil pumping polish rod shown in the figure comprises cylindrical bar 3, cylindrical bar 3 left ends are provided with left bar head 2, on the left side bar head 2 external screw thread 1 is set, cylindrical bar 3 right-hand members are provided with right bar head 8, on the right bar head 8 external screw thread 9 is set, right bar head 8 left ends are provided with round platform 7, and round platform 7 is in order to increase reliability and the convenience that connects in the construction.Round platform 7 left ends are provided with many planes connector 6, are convenient to the operation of pipe wrench and hydraulic tongs, to prolong polished rod life-span of fitting operation repeatedly.The left end of many planes described in the utility model connector 6 is connected with cambered surface 5, adopts curved surface 4 to be connected between cambered surface 5 and the cylindrical bar 3, on the entire infrastructure external surface of polished rod multicomponent thermochemical treatment layer 10 is set.
Multicomponent thermochemical treatment layer 10 described in the utility model is made of nitrogen, carbon, copper, chromium, molybdenum, lanthanum, cerium and P elements, and it is by metal and nonmetally constitute, and makes polished rod surface formative tissue matter close, the high and wear-resisting smooth surface of hardness.
The structure design of cambered surface described in the utility model makes and produces between the structure of polished rod transitional the connection, and the intensity when having strengthened impacting is avoided rupturing.The external diameter of described round platform 7 is greater than the outside dimensions of many planes connector 6, the adapter sleeve when connecting to increase accept intensity.
One of further program of the utility model is that described many planes connector 6 has four planes, the left end on each plane all is connected with the height point place of cambered surface 5, cambered surface 5 has four, as shown in Figure 2, outer edge was rounded after four cambered surfaces linked to each other, circular outer edge is the minimum point of cambered surface, and this structure is through using proof resistance to fracture effect better.Described four cambered surfaces link to each other back outer edge circular outer diameter greater than the outer size on four planes, to reach the purpose of further increase impact resistance.
The thickness of multicomponent thermochemical treatment layer 10 described in the utility model is 10-50um, and hardness is 56-60HRC, and further scheme is: the thickness of multicomponent thermochemical treatment layer 10 is 7-9um, and hardness is 50-55HRC, and this thickness is the selection of good cost performance.
Multicomponent thermochemical treatment layer 10 described in the utility model is to be black-and-blue.
Scheme described in the utility model is not limited within the present embodiment.
Claims (6)
1, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod, comprise cylindrical bar (3), cylindrical bar (3) left end is provided with left bar head (2), on the left side bar head (2) external screw thread (1) is set, cylindrical bar (3) right-hand member is provided with right bar head (8), on the right bar head (8) external screw thread (9) is set, it is characterized in that: right bar head (8) left end is provided with round platform (7), round platform (7) left end is provided with many planes connector (6), the left end of many planes connector (6) is connected with cambered surface (5), adopt curved surface (4) to be connected between cambered surface (5) and the cylindrical bar (3), multicomponent thermochemical treatment layer (10) is set on the entire infrastructure external surface of polished rod.
2, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod according to claim 1, it is characterized in that: the external diameter of round platform (7) is greater than the outside dimensions of many planes connector (6).
3, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod according to claim 1, it is characterized in that: many planes connector (6) has four planes, the left end on each plane all is connected with the height point place of cambered surface (5), cambered surface (5) has four, outer edge was rounded after four cambered surfaces linked to each other, and circular outer edge is the minimum point of cambered surface.
4, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod according to claim 3 is characterized in that: four cambered surfaces outer size of back outer edge circular outer diameter greater than four planes that link to each other.
5, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod according to claim 1, it is characterized in that: the thickness of multicomponent thermochemical treatment layer (10) is 10-50um, and hardness is 56-60HRC.
6, a kind of multicomponent thermochemical treatment anticorrosion oil pumping polish rod according to claim 1, it is characterized in that: the thickness of multicomponent thermochemical treatment layer (10) is 7-9um, and hardness is 50-55HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201580936U CN201155302Y (en) | 2007-12-11 | 2007-12-11 | Multiple-element co-seepage corrosion proof pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201580936U CN201155302Y (en) | 2007-12-11 | 2007-12-11 | Multiple-element co-seepage corrosion proof pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155302Y true CN201155302Y (en) | 2008-11-26 |
Family
ID=40103085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201580936U Expired - Lifetime CN201155302Y (en) | 2007-12-11 | 2007-12-11 | Multiple-element co-seepage corrosion proof pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155302Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154106A (en) * | 2014-09-02 | 2014-11-19 | 成都伍田机械技术有限责任公司 | Black gold optical shaft |
| CN104152843A (en) * | 2014-09-02 | 2014-11-19 | 成都伍田机械技术有限责任公司 | Ion permeability agent for improving corrosion resistance and abrasion performance of an optical shaft |
-
2007
- 2007-12-11 CN CNU2007201580936U patent/CN201155302Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154106A (en) * | 2014-09-02 | 2014-11-19 | 成都伍田机械技术有限责任公司 | Black gold optical shaft |
| CN104152843A (en) * | 2014-09-02 | 2014-11-19 | 成都伍田机械技术有限责任公司 | Ion permeability agent for improving corrosion resistance and abrasion performance of an optical shaft |
| CN104154106B (en) * | 2014-09-02 | 2016-08-24 | 成都伍田机械技术有限责任公司 | Dark fund optical axis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081126 |