CN2789458Y - Oil-well pump ceramic plunger - Google Patents
Oil-well pump ceramic plunger Download PDFInfo
- Publication number
- CN2789458Y CN2789458Y CN 200520041800 CN200520041800U CN2789458Y CN 2789458 Y CN2789458 Y CN 2789458Y CN 200520041800 CN200520041800 CN 200520041800 CN 200520041800 U CN200520041800 U CN 200520041800U CN 2789458 Y CN2789458 Y CN 2789458Y
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- CN
- China
- Prior art keywords
- plunger
- oil
- ceramic body
- well pump
- ceramic
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses the fabrication technique of a ceramic plunger of an oil-well pump of oil production equipment in oilfields. A main body of the ceramic plunger is a tubular cylinder with certain length, and is formed by the overlapping of a steel inner layer and an abrasion-proof ceramic outer sleeve. The design intentionally divides a tubular ceramic body into at least more than two sections for butt joint, the aim of which is to reduce the internal stress which can cause the ceramic body to be broken at the time of bearing with external force impact, to cause the lathe work to be convenient and to be little influenced by temperature changes. Convex conical surfaces at both ends of each section of the ceramic body are in butt joint with a concave cone of a positioning sleeve so as to cause the positioning to be convenient and accurate. The upper end of the plunger is provided with a spiral oil outlet groove forming an angle of 45 DEG, and a scraper type dirt removing sleeve to cause impurities, such as mud, sand, etc., in crude oil not to occlude and stick on the inner wall of a pump body, which can reduce the occurrence of accidents caused by sand inclusion and pump clamping. The plunger has obvious functions on reducing the running cost when an oil pumping machine stops, and improving both oil production efficiency and economic benefit.
Description
Technical field
The utility model relates to the manufacturing technology field of oil field equipment, and the piston that especially refers to a kind of oil well pump is the manufacturing technology of ceramics plunger in oil well pump.
Background technique
Oil well pump is one of capital equipment in the oil production system of oil field, and plunger is the critical component of oil well pump.Therefore the quality of plunger performance is directly connected to the i.e. height of " pump efficiency " of pumping efficiency.Because the geological state of oil well is quite complicated, situation is irregular differs for the crude oil stickiness in the oil reservoir, temperature, sand content, sulphur content etc.The plunger of a large amount of oil well pumps that use is all made of alloyed steel usually in the oil field in the past, it for a long time in the environment of high temperature, high sand content in service being easy to be corroded.Contact between plunger and the pump housing inwall and very accurate, in the middle of that is afraid of that a little trickle sand grains presss from both sides into, plunger is scrapped with regard to being easy to snag, wearing and tearing.Though the someone had invented the plunger of pottery afterwards, but still can not avoid taking place burning into sand holddown phenomenon, even make ceramic body cracked and damage the accident scrap and take place.Oil well pump is changed a plunger, is a cumbersome thing, will hang on ground at the oil well pump and the plunger of the dark underground work of one, two kms after it must be shut down, and cleans out impurity, silt particle in the pump housing, changes new plunger.If the pump case inwall is also by snag, that trouble is just bigger, has to change whole oil well pump.The well oil output that causes thus, artificial, the equipment loss is very big.Therefore, the oil recovery workman wishes to have a kind of oil pump plunger piston high temperature resistant, anticorrosive, long service life to come out.
The model utility content
Technical problem to be solved in the utility model is: there is easy burning into sand holddown in the ceramic plunger at existing oil well pump and causes cracked defective, design a kind of high temperature resistant, anticorrosive and not easily broken ceramic plunger, thereby prolong the working life of plunger and complete machine, oil well is stopped production less, improve the economic benefit in oil field.
The technological scheme of the utility model technical solution problem is: design a kind of ceramics plunger in oil well pump that has sand removal, snaking device, make it at the automatic at any time sand removal of the implementation in service that does not stop, snaking, reduce making the cracked accident of ceramic body because of holddown takes place burning into sand.
The body of ceramic plunger of the present utility model is a long hollow circular cylinder, comprises leading sand joint, snaking cover, last valve bonnet, upper travelling valve, upper connection, setting sleeve, ceramic body, center-pole, lower contact, following valve bonnet, lower travelling valve, lower travelling valve joint, damping spring, guide head.Described body is the cylindrical steel tube of a hollow, and it is ceramic body that its outside is with high temperature resistant, anticorrosive, wear-resisting pottery cylinder, and the upper end connects upper travelling valve, also is provided with valve bonnet above the upper travelling valve.Being upper connection and snaking cover above the last valve bonnet, is to lead the sand joint topmost.The lower end of body connects lower travelling valve and valve bonnet, lower contact down, is provided with go into the well guide head and buffering spring below.
Describedly lead the helical that the sand joint outside is provided with several angles at 45 and go out oil groove, can make crude oil shape ejection in the shape of a spiral, its flow velocity increases relatively, and the pump wall is had certain flushing action;
Described snaking cover Front-end Design becomes blade geometry, makes its dirt on the scraped pump housing inwall when moving upward;
Described ceramic body branch is set as more than two sections at least, and purpose is to eliminate internal stress, prevents cracked and makes the turning easy processing;
The both ends of the surface of the steel setting sleeve that described butt joint ceramic body is used are designed to concave conical surface, contact butt joint with the convex conical surface of ceramic body, can make the location not only accurately but also quick, and the concentricity height;
Described guide head is fixed on the center-pole lower end with positioning screwn, and the outside of guide head is with damping spring, its objective is just in case fall well or impact force is reduced when landing accident of plunger takes place, and can not make the plunger distortion or the broken ceramic body that shakes.
When the utility model uses in oil well pump, go out oil groove owing to lead the helical that is provided with 45 around the sand joint, thereby fuel-displaced flow velocity is increased relatively, reduce the delay of silt on pump housing inwall in the crude oil; Simultaneously because the snaking Analysis of Nested Design of plunger front end becomes blade geometry, stick to that silt, dirt on the inwall can be struck off at any time and with crude oil from going out the oil groove ejection, thereby significantly reduced the generation of burning into sand holddown phenomenon.The utility model compared with prior art has plurality of advantages such as high temperature resistant, anticorrosive, long service life, when this reduces the shutdown of pumping machine platform to the oil field, reduces operating cost, and increasing economic efficiency has remarkable effect.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 is sand joint and the snaking nested structure schematic representation of leading of the present utility model;
Fig. 3 is a ceramic body butt joint setting sleeve schematic representation of the present utility model;
Fig. 4 is a buffer structure schematic representation of the present utility model;
Each title and mark among the figure: 1. lead the sand joint, 2. the snaking cover, 3. go up valve bonnet, 4. upper travelling valve, 5. upper connection, 6. setting sleeve, 7. ceramic body, 8. the crude oil passage, 9. fastening screw trip bolt, 10. center-pole, 11. lower contacts, 12. times valve bonnets, 13. lower travelling valves, 14. positioning screwns, 15. times valve joints, 16. damping springs, 17. guide heads, 18. spirals go out oil groove, 19. and scrape the edge of a knife.
Embodiment
As shown in Figures 1 to 4, body of the present utility model is a pipe shape cylinder with certain-length, internal layer is the center-pole 10 of steel, inner chamber is the crude oil passage 8 of hollow, skin is coated with ceramic body 7, the pump housing inwall of the outer wall of ceramic body 7 and oil well pump closely cooperates, and makes oil well pump have the function of the underground crude oil of suction.Cooperate with certain interval between ceramic body 7 and center-pole 10 two-layer, and there is fastening screw trip bolt 9 to be fixed into one, in order to reduce to cause the internal stress of tubular ceramic body 7 fragmentations, and make its turning easy to process, during design ceramic body 7 is divided into more than two sections at least, every section two ends all are provided with the setting sleeve 6 of steel.The concave conical surface of setting sleeve 6 closely contacts with the convex conical surface of ceramic body 7, and purpose is the time to make two sections ceramic bodies, 7 butt joint location not only accurately but also quick in assembling, and the concentricity height.The upper end of described plunger body is for leading sand joint 1, be connected with sucker rod, the spiral that is provided with 45 on every side goes out oil groove 18, be scraper type snaking cover 2 below, contact with pump housing inwall is accurate, when plunger upwards moved, snaking overlapped scraping the edge of a knife 19 and can striking off and spray with crude oil sticking to silt, dirt on the pump housing inwall of 2 front ends.Under the drive that sucker rod moves up and down, plunger is also done oil pumping operation up and down in the pump housing.Its running is: when plunger is promoted downwards by sucker rod, upper travelling valve 4 and lower travelling valve 13 are backed down by crude oil, it is crude oil passage 8 that crude oil enters plunger cavity, when plunger is up moved by the sucker rod drive, upper travelling valve 4 and lower travelling valve 13 are closed automatically, and crude oil goes out oil groove 18 ejections from spiral.When plunger moved downward for the second time, upper travelling valve 4 and lower travelling valve 13 were opened again, repeat above-mentioned oil pumping process, and underground crude oil is pumped up continuously.Meanwhile, when snaking overlaps scraping the edge of a knife 19 and up moving with plunger of 2 front ends, the silt particle that adheres on the pump housing inwall and dirt struck off and go out oil groove 18 with crude oil from spiral spray rapidly.
Claims (5)
1. oil field equipment ceramics plunger in oil well pump, its pipe shape body is laminated with by steel internal layer and pottery skin and forms, comprise center-pole (10), lead sand joint (1), snaking cover (2), ceramic body (7), upper travelling valve (4), lower travelling valve (13), last valve bonnet (3), following valve bonnet (12), setting sleeve (6), upper connection (5), lower contact (11), positioning screwn (14), following valve joint (15), damping spring (16) and guide head (17), it is characterized in that described outer ceramic body (7) is divided into three sections at least, locate with steel setting sleeve (6) butt joint at every section two ends, cooperate with certain interval between ceramic body (7) and the center-pole (10), and there is fastening screw trip bolt (9) to be fixed into one, center-pole (10) inner chamber is crude oil passage (8), the upper end is provided with upper travelling valve (4) and last valve bonnet (3), the lower end is provided with lower travelling valve (13) and following valve bonnet (12), and upper travelling valve (4) and lower travelling valve (13) are by upper connection (5) and lower contact (11) is fixing and plunger is linked to be integral body.
2. a kind of ceramics plunger in oil well pump as claimed in claim 1 is characterized in that the described sand joint (1) of leading is arranged on the plunger body upper end, is connected with the sucker rod of pumping unit, and the spiral that is provided with angle at 45 on every side of leading sand joint (1) goes out oil groove (18).
3. a kind of ceramics plunger in oil well pump as claimed in claim 1 is characterized in that described snaking cover (2) is located to lead below the sand joint (1) that front end is scrapes the edge of a knife (19) shape, and is close to pump housing inwall and does operation up and down with plunger.
4. a kind of ceramics plunger in oil well pump as claimed in claim 1 is characterized in that described setting sleeve (6) is arranged on the two ends of every section ceramic body (7), and its both ends of the surface are designed to concave conical surface, docks the location with the convex conical surface of ceramic body (7).
5. a kind of ceramics plunger in oil well pump as claimed in claim 1 is characterized in that described guide head (16) is located at the lower end of plunger, is fixed in the lower end of center-pole (10) with positioning screwn (14), is with damping spring (17) around it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041800 CN2789458Y (en) | 2005-05-20 | 2005-05-20 | Oil-well pump ceramic plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041800 CN2789458Y (en) | 2005-05-20 | 2005-05-20 | Oil-well pump ceramic plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789458Y true CN2789458Y (en) | 2006-06-21 |
Family
ID=36789789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041800 Expired - Fee Related CN2789458Y (en) | 2005-05-20 | 2005-05-20 | Oil-well pump ceramic plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789458Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694407A (en) * | 2015-11-18 | 2017-05-24 | 克拉玛依胜利高原机械有限公司 | Dirt scraping type oil well pump |
| CN112761839A (en) * | 2021-01-28 | 2021-05-07 | 长江武汉航道工程局 | Plunger coupling piece of obtuse-angle oil groove of high-pressure oil pump |
| CN114303013A (en) * | 2019-09-04 | 2022-04-08 | 汉克沙斯伍夫公司 | Device for applying a fluid |
-
2005
- 2005-05-20 CN CN 200520041800 patent/CN2789458Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694407A (en) * | 2015-11-18 | 2017-05-24 | 克拉玛依胜利高原机械有限公司 | Dirt scraping type oil well pump |
| CN114303013A (en) * | 2019-09-04 | 2022-04-08 | 汉克沙斯伍夫公司 | Device for applying a fluid |
| CN112761839A (en) * | 2021-01-28 | 2021-05-07 | 长江武汉航道工程局 | Plunger coupling piece of obtuse-angle oil groove of high-pressure oil pump |
| CN112761839B (en) * | 2021-01-28 | 2021-11-23 | 长江武汉航道工程局 | Plunger coupling piece of obtuse-angle oil groove of high-pressure oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 Termination date: 20110520 |