CN2571990Y - Two-piece type stabilizer for sucker rod - Google Patents
Two-piece type stabilizer for sucker rod Download PDFInfo
- Publication number
- CN2571990Y CN2571990Y CN 02246216 CN02246216U CN2571990Y CN 2571990 Y CN2571990 Y CN 2571990Y CN 02246216 CN02246216 CN 02246216 CN 02246216 U CN02246216 U CN 02246216U CN 2571990 Y CN2571990 Y CN 2571990Y
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- semi
- circular cylindrical
- cylindrical shell
- section
- sucker rod
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Abstract
The utility model relates to a two-piece type centralizer for a sucker rod, which is composed of two half annular cylinders. The utility model is characterized in that the two half annular cylinders which have the same external shape are mutually buckled in the opposite directions; the inner wall of each cylinder is provided with an annular convex rib, and four longitudinal circular arc grooves are formed on the outer wall of each cylinder; small bulges or small concave grooves are arranged respectively on the positive contact faces where the two half annular cylinders are mutually buckled; bar-shaped bulges or bar-shaped concave grooves are arranged respectively on the lateral contact faces where the two half annular cylinders are mutually buckled. In the lengthwise direction of each half annular cylinder, half of a cross section has three bows which are mutually connected, the inner side of each of two corresponding bows is provided with a longitudinal slide groove, and the other half of the cross section has one bow of which the outer side of each of both ends is provided with a longitudinal tenon. The utility model has the advantages of simple structure, easy manufacture, convenient installation because of an assembly form, smooth oil flow, no easy wax deposition, increased efficiency of wax scrape, and increased amount of sucked oil. The utility model is suitable for being used as the two-piece type centralizer for a sucker rod for the double functions of wax scrape and centralization of a sucker rod in the operation of oil production in an oil field.
Description
Technical field
The utility model belongs to oil field oil recovery facility, and scraping that particularly a kind of sucker rod oil pumping process that is used to recover the oil is used be cured, set upright double-acting oil pumping rod centering device.
Background technology
In China's oil field operation, box cupling between sucker rod and the sucker rod or short circuit need be provided with centralizer usually at present, and centralizer is form of sleeve.In the sucker rod course of work, the centralizer sleeve carries out paraffin cutting thereupon, can prevent that paraffin from condensing on the sucker rod, influences the oil pumping amount; Centralizer guarantees that sucker rod does not produce deflection simultaneously, works the sucker rod effect of setting upright.Existing centralizer is integral form more, as Chinese patent " the ZL01225062.7 nylon sucker rod is scraped cured centralizer ", behind sucker rod body wall elder generation cementation circular orientation body, there is the nylon of some fins to scrape cured guide way on the surface and is injection-moulded in positioning body outer wall and upper and lower end face.When the sleeve with paraffin cutting, centralizing function needed to change because of wearing and tearing, it was very inconvenient to dismantle; And the structure form of paraffin cutting sleeve is quite simple, and paraffin cutting efficient is not high, is difficult to increase the oil pumping amount.
Summary of the invention
The purpose of this utility model is, designs and produces a kind of two-piece type oil pumping rod centering device, adopts two assembling forms, improves the structure form of sleeve, and oil guide groove is set, and is smooth logical to guarantee oil, improves that paraffin cutting is wear-resisting, corrosion resistant, resistance to elevated temperatures, increases the oil pumping amount.
The technical solution of the utility model is following realization: a kind of two-piece type oil pumping rod centering device, form by two semi-circular cylindrical shells, the profile of two semi-circular cylindrical shells is identical, direction is opposite to fasten together mutually, cylinder inboard wall is provided with annular ridge, to be adjacent to sucker rod, cylinder body outer wall constitutes four vertical arc grooves, unimpeded in order to the fluid trickling, be respectively equipped with small embossment and little groove on two mutual forward contact surfaces that fasten of semi-circular cylindrical shell, to be meshing with each other firmly, be respectively equipped with strip bulge and strip groove on two mutual side direction contact surfaces that fasten of semi-circular cylindrical shell, with mutual interlock.
Be divided into two sections on the length direction of semi-circular cylindrical shell, the cross section of one section semi-circular cylindrical shell be three interconnective arc, two relative arc inboards are provided with vertical chute, the cross section of the semi-circular cylindrical shell of another section be one arc, the arc outside, two ends is provided with vertical tenon, to cooperate with vertical chute of another semi-circular cylindrical shell.
The using method of two-piece type oil pumping rod centering device of the present utility model is, two semi-circular cylindrical shells of two-piece type oil pumping rod centering device are fastened on the sucker rod periphery, forms domain shape cylindrical shell.In the sucker rod course of work, cylindrical shell carries out paraffin cutting thereupon, because cylinder body outer wall is provided with four vertical arc grooves, the fluid trickling is unimpeded; Prevented that not only paraffin from condensing on the sucker rod, and improved paraffin cutting efficient, correspondingly increased the oil pumping amount.
The utility model has the advantages that: simple structure, handling ease.The assembling form is convenient to install.The oil circulation is smooth, and it is cured to be difficult for knot.Can improve paraffin cutting efficient, increase the oil pumping amount.Technical economic benefit is remarkable.Be applicable to that scraping of sucker rod in the oil field operation is cured and set upright the two-piece type oil pumping rod centering device of double action.
Description of drawings
Fig. 1 is the organigram of two-piece type oil pumping rod centering device of the present utility model;
Fig. 2 is the perspective view of two-piece type oil pumping rod centering device;
Fig. 3 is the organigram of the semi-circular cylindrical shell of two-piece type oil pumping rod centering device;
Fig. 4 is the left view of semi-circular cylindrical shell;
Fig. 5 is the right view of semi-circular cylindrical shell.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model will be further described:
As seen from Figure 1, two-piece type oil pumping rod centering device of the present utility model is made up of two semi-circular cylindrical shells, and the profile of two semi-circular cylindrical shells 1,2 is identical, and direction is opposite to fasten together mutually.Fig. 1-A is an assembling process; Fig. 1-B is that assembling is finished.
As seen from Figure 2, seen by two different angles that the two-piece type oil pumping rod centering device is made up of two semi-circular cylindrical shells, the profile of two semi-circular cylindrical shells 1,2 is identical, and direction is opposite to fasten together mutually.Cylinder inboard wall is provided with annular ridge 3, to be adjacent to sucker rod, cylinder body outer wall constitutes four vertical arc grooves 4, unimpeded in order to the fluid trickling, be divided into two sections on the length direction of semi-circular cylindrical shell, the cross section of one section semi-circular cylindrical shell be three interconnective arc, two relative arc inboards are provided with vertical chute, to cooperate with vertical tenon of another semi-circular cylindrical shell.The cross section of the semi-circular cylindrical shell of another section be one arc, the outside, arc two ends is provided with vertical tenon, to cooperate with vertical chute of another semi-circular cylindrical shell.
As seen from Figure 3, be divided into two sections on the length direction of semi-circular cylindrical shell, the cross section of one section semi-circular cylindrical shell is three interconnective arc 5, two relative arc inboards and is provided with vertical chute, to cooperate with vertical tenon of another semi-circular cylindrical shell.The cross section of the semi-circular cylindrical shell of another section be one arc 6, the arc outside, two ends is provided with vertical tenon, to cooperate with vertical chute of another semi-circular cylindrical shell.Be respectively equipped with small embossment 7 and little groove 8 on two mutual forward contact surfaces that fasten of semi-circular cylindrical shell,, be respectively equipped with strip bulge 9 and strip groove 10 on two mutual side direction contact surfaces that fasten of semi-circular cylindrical shell, with mutual interlock to be meshing with each other firmly.
As seen from Figure 4, on the length direction of semi-circular cylindrical shell, the cross section of one section semi-circular cylindrical shell is three interconnective arc 5, two relative arc inboards and is provided with vertical chute 11.The forward contact surface that semi-circular cylindrical shell fastens mutually is provided with small embossment 7, and the side direction contact surface that semi-circular cylindrical shell fastens mutually is provided with strip bulge 9.
As seen from Figure 5, on the length direction of semi-circular cylindrical shell, the cross section of the semi-circular cylindrical shell of another section be one arc 6, the arc outside, two ends is provided with vertical tenon 12.The forward contact surface that semi-circular cylindrical shell fastens mutually is provided with little groove 8, and the side direction contact surface that semi-circular cylindrical shell fastens mutually is provided with strip groove 10.
Claims (1)
1, a kind of two-piece type oil pumping rod centering device, form by two semi-circular cylindrical shells, it is characterized in that the profile of two semi-circular cylindrical shells is identical, direction is opposite to fasten together mutually, cylinder inboard wall is provided with annular ridge, cylinder body outer wall constitutes four vertical arc grooves, is divided into two sections on the length direction of semi-circular cylindrical shell, the cross section of one section semi-circular cylindrical shell be three interconnective arc, two relative arc inboards are provided with vertical chute, cooperate with vertical tenon of another semi-circular cylindrical shell; The cross section of the semi-circular cylindrical shell of another section be one arc, the outside, arc two ends is provided with vertical tenon, cooperates with vertical chute of another semi-circular cylindrical shell; On two mutual forward contact surfaces that fasten of semi-circular cylindrical shell, an end is provided with small embossment, and the other end is provided with little groove; On two mutual side direction contact surfaces that fasten of semi-circular cylindrical shell, a side is provided with strip bulge, and opposite side is provided with strip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02246216 CN2571990Y (en) | 2002-08-13 | 2002-08-13 | Two-piece type stabilizer for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02246216 CN2571990Y (en) | 2002-08-13 | 2002-08-13 | Two-piece type stabilizer for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571990Y true CN2571990Y (en) | 2003-09-10 |
Family
ID=33717584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02246216 Expired - Fee Related CN2571990Y (en) | 2002-08-13 | 2002-08-13 | Two-piece type stabilizer for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571990Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720443A (en) * | 2012-07-06 | 2012-10-10 | 常熟市石油固井工具有限公司 | Sucker rod centering guide convenient for installation |
| CN105370245A (en) * | 2014-08-29 | 2016-03-02 | 中国石油天然气股份有限公司 | Sucker rod wax scraper |
| CN105484702A (en) * | 2016-01-18 | 2016-04-13 | 吉林大学 | Device for removing slurry on outer wall of drilling rig |
-
2002
- 2002-08-13 CN CN 02246216 patent/CN2571990Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720443A (en) * | 2012-07-06 | 2012-10-10 | 常熟市石油固井工具有限公司 | Sucker rod centering guide convenient for installation |
| CN102720443B (en) * | 2012-07-06 | 2014-04-30 | 常熟市慧丰塑料制品有限公司 | Sucker rod centering guide convenient for installation |
| CN105370245A (en) * | 2014-08-29 | 2016-03-02 | 中国石油天然气股份有限公司 | Sucker rod wax scraper |
| CN105370245B (en) * | 2014-08-29 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of rod scraper |
| CN105484702A (en) * | 2016-01-18 | 2016-04-13 | 吉林大学 | Device for removing slurry on outer wall of drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |