CN215058062U - Wax scraping sand prevention oil well pump - Google Patents
Wax scraping sand prevention oil well pump Download PDFInfo
- Publication number
- CN215058062U CN215058062U CN202121858986.8U CN202121858986U CN215058062U CN 215058062 U CN215058062 U CN 215058062U CN 202121858986 U CN202121858986 U CN 202121858986U CN 215058062 U CN215058062 U CN 215058062U
- Authority
- CN
- China
- Prior art keywords
- sand
- plunger
- scraper
- oil
- annular
- 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.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a wax scraping sand prevention oil well pump, which relates to the technical field of oil well pumps and comprises a pump cylinder, wherein the bottom of the pump cylinder is provided with a fixed valve, a plunger is arranged in the pump cylinder, the top end of the plunger is connected with a sucker rod through coaxial detachable, an upper movable valve is arranged in the upper part of the plunger, a lower movable valve is arranged in the lower part of the plunger, the top end of the plunger is connected with an upper sand scraper, the bottom end of the plunger is connected with a lower sand scraper, the top end of the upper sand scraper is connected with an oil outlet joint, the oil outlet joint is connected with the sucker rod through coaxial detachable, so that the upper sand scraper and the lower sand scraper are matched to scrape and collect sand grains and wax in the area between the pump cylinder and the plunger in the whole reciprocating motion of the sucker rod in the oil pumping process, thereby avoiding the abrasion of the sand grains to a sealing surface, the utility model discloses directly digs a groove on the plunger, improving the strength of the plunger, and prolonging the service life of the plunger, the processing cost of the plunger is reduced.
Description
Technical Field
The utility model relates to an oil-well pump technical field, in particular to scrape wax sand control oil-well pump.
Background
When the oil well pump pumps down-hole liquid, sand in the well liquid easily enters a gap between a plunger and a pump barrel of the oil well pump, and along with relative movement of the plunger and the pump barrel, the sand can seriously abrade equipment and even cause sand blocking, so that the damage is extremely large. In order to solve the problems of sand blocking and wax deposition, a method of directly digging a groove on a plunger is adopted at present, sand grains and wax scale in a gap between the plunger and a pump barrel of the oil well pump are scraped off in the process of the up-down stroke of the plunger, but the method destroys the surface integrity of the plunger, reduces the service life of the plunger and has higher processing cost.
Disclosure of Invention
To above defect, the utility model aims at providing a scrape wax sand control oil-well pump aims at solving among the prior art plunger life-span low, the high technical problem of processing cost.
In order to solve the technical problem, the technical scheme of the utility model is that:
the utility model provides a scrape wax sand control oil-well pump, includes the pump barrel, and the bottom of pump barrel is equipped with the standing valve, is equipped with the plunger in the pump barrel, and the top coaxial detachable of plunger is connected with the sucker rod, is equipped with the upper traveling valve in the upper portion of plunger, is equipped with the lower traveling valve in the lower part of plunger, and the top detachable of plunger is connected with scrapes the sand ware, and the bottom detachable of plunger is connected with down scrapes the sand ware, and the top detachable of scraping the sand ware on is connected with out the oil head, and it is connected with the coaxial dismantlement of sucker rod to go out the oil head.
Preferably, a plurality of first annular grooves are formed in the upper sand scraper in the length direction of the upper sand scraper at intervals, a plurality of second annular grooves are formed in the lower sand scraper in the length direction of the lower sand scraper at intervals, circular rings are sleeved in the first annular grooves and the second annular grooves, and spaces capable of containing sand grains are formed between the circular rings and the first annular grooves and between the circular rings and the second annular grooves.
Preferably, the material of the circular ring is plastic.
Preferably, the one end of ring is equipped with annular protrusion, and the bellied outer wall of annular aligns with the outer wall of ring, and the annular protrusion of the ring of suit in first ring channel sets up upwards, and the annular protrusion of the ring of suit in the second ring channel sets up downwards.
Preferably, the annular projection has an outer height greater than an inner height.
Preferably, the upper sand scraper and the lower sand scraper are both provided with sand washing ports, the sand washing ports on the upper sand scraper are positioned above the first annular groove, and the sand washing ports on the lower sand scraper are positioned below the second annular groove.
Preferably, the upper side wall of the first annular groove is inclined downward, and the lower side wall of the second annular groove is inclined upward.
Preferably, the top of the oil outlet joint is arranged in an upward inclined mode.
Preferably, the bottom end of the pump cylinder is provided with a screen.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the wax scraping sand prevention oil well pump comprises a pump cylinder, the bottom of the pump cylinder is provided with a fixed valve, a plunger is arranged in the pump cylinder, the top end of the plunger is connected with a sucker rod through a coaxial detachable way, the upper part of the plunger is provided with an upper movable valve, the lower part of the plunger is provided with a lower movable valve, the top end of the plunger is connected with an upper sand scraper through a detachable way, the bottom end of the plunger is connected with a lower sand scraper through a detachable way, the top end of the upper sand scraper is connected with an oil outlet joint through a detachable way, and the oil outlet joint is coaxially and detachably connected with the sucker rod, make at the oil pumping in-process, on scrape sand ware and scrape sand grain and oil wax in the cooperation of sand ware down in the whole reciprocating motion of sucker rod between pump barrel and the plunger in the region strike off and collect, avoid the sealed face of sand grain wearing and tearing, the utility model discloses directly not digging the groove on the plunger, improved the intensity of plunger, improved the life of plunger, reduced the processing cost of plunger.
Because the upper sand scraper is provided with a plurality of first ring grooves at intervals along the length direction of the upper sand scraper, the lower sand scraper is provided with a plurality of second ring grooves at intervals along the length direction of the lower sand scraper, the first ring grooves and the second ring grooves are both internally sleeved with rings, one end of each ring is provided with an annular bulge, the outer wall of each annular bulge is aligned with the outer wall of each ring, the annular bulge of each ring sleeved in the first ring groove is upwards arranged, the annular bulge of each ring sleeved in the second ring groove is downwards arranged, spaces for containing sand grains are respectively arranged between each ring and the first ring groove and between each second ring groove, the outer side height of each annular bulge is higher than the inner side height, so that the upper sand scraper can scrape and collect sand grains and oil wax in the pump cylinder during the upper stroke, the lower sand scraper can scrape and collect sand grains and oil wax in the pump cylinder during the lower stroke, and the height difference between the outer side and the inner side of each annular bulge can ensure that the edge of each ring has a sharp corner, the efficiency of the sand scraping of sand scraper and lower sand scraper is gone up in the improvement, and the change of ring is easily dismantled moreover, and is easy to assemble, and is with low costs.
Because all be equipped with the sand washing mouth on last sand scraper and the sand scraper down, the sand washing mouth on the last sand scraper is located the top of first ring channel, and the sand washing mouth on the sand scraper is located the below of second ring channel down for after last sand scraper and the sand scraper down were taken away from the pump barrel, sand grain and the wax oil that store in the sand scraper can be washed away to the fluid that flows from sand washing mouth department under and the sand scraper.
Because the upper side wall of the first annular groove is obliquely arranged downwards, the lower side wall of the second annular groove is obliquely arranged upwards, and the obliquely arranged surface can guide oil liquid flowing out of the sand washing port into the first annular groove and the second annular groove, so that the washing efficiency of sand grains and oil wax in the upper sand scraper and the lower sand scraper is improved.
To sum up, the utility model provides a prior art center pillar stopper life-span is low, the high technical problem of processing cost, the utility model discloses make at the oil pumping in-process, on scrape sand ware and scrape off and collect sand grain and the oil wax in the region between pump barrel and the plunger in the whole reciprocating motion of sucker rod with lower sand ware cooperation, avoid the sealed face of sand grain wearing and tearing, the utility model discloses directly not digging the groove on the plunger, improved the intensity of plunger, improved the life of plunger, reduced the processing cost of plunger.
Drawings
Fig. 1 is the structure schematic diagram of the wax scraping sand prevention oil well pump of the utility model.
In the figure, 1-pump cylinder, 10-sieve tube, 100-sand filtering port, 2-fixed valve, 20-valve ball, 21-oil inlet, 22-limit plate, 3-plunger, 4-upstream movable valve, 5-downstream movable valve, 6-upper sand scraper, 60-first annular groove, 61-annular ring, 610-annular bulge, 62-sand washing port, 7-lower sand scraper, 70-second annular groove, 8-oil outlet joint, 80-oil outlet and 9-sucker rod.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The position that involves in this specification all uses the utility model relates to a scrape the position of wax sand control oil-well pump normal during operation is the standard, does not restrict the position when its storage and transportation, only represents relative position relation, does not represent absolute position relation.
As shown in figure 1, the wax scraping sand prevention oil well pump comprises a pump cylinder 1, a fixed valve 2 is arranged at the bottom of the pump cylinder 1, a plunger 3 is arranged in the pump cylinder 1, the fixed valve 2 comprises a valve ball 20 which is slidably arranged in the plunger 3, an oil inlet 21 is arranged at the bottom end of the pump cylinder 1, the valve ball 20 movably shields the oil inlet 21, a limiting plate 22 which can limit the upper stroke of the valve ball 20 is arranged above the oil inlet 21, an upper movable valve 4 is arranged in the upper part of the plunger 3, a lower movable valve 5 is arranged in the lower part of the plunger 3, the upper movable valve 4 and the lower movable valve 5 are similar to the fixed valve 2 in structure, an upper sand scraper 6 is screwed at the top end of the plunger 3, a lower sand scraper 7 is screwed at the bottom end of the plunger 3, an oil outlet connector 8 is screwed at the top end of the upper sand scraper 6, the top end of the oil outlet connector 8 is upwards obliquely arranged, an oil outlet 80 is arranged on an inclined plane at the top of the oil outlet connector 8, an oil sucker rod 9 is screwed at the top end of the oil outlet connector 8, when the oil pumping device is used, during an upward stroke, the oil pumping rod 9 drives the plunger 3 to move upwards, the space between the plunger 3 and the pump barrel 1 is enlarged, the pressure in the space is reduced, pressure difference is generated between the upper part and the lower part of the fixed valve 2, oil in a well opens the fixed valve 2 under the action of the pressure difference and enters the pump barrel 1, the upper movable valve 4 is closed under the action of the pressure difference, the oil at the upper end of the plunger 3 is taken out of the ground, the upper sand scraper 6 moves upwards along with the plunger 3 to scrape and collect sand grains and oil wax in the area between the pump barrel 1 and the plunger 3, during a downward stroke, the oil pumping rod 9 drives the plunger 3 to move downwards, the oil is compressed, the upper movable valve 4 and the lower movable valve 5 are opened, the fixed valve 2 is closed, the oil moves upwards and flows out of the oil outlet 80, the lower sand scraper 7 moves downwards along with the plunger 3 to scrape the sand grains and the oil wax in the area between the pump barrel 1 and the plunger 3 for oil pumping rod and collection, and the upper sand scraper 6 and the lower sand scraper 7 are matched in the whole reciprocating motion of the pump barrel 9 during the oil pumping process The sand grains and the oil wax in the area are scraped and collected, so that the sealing surface is prevented from being abraded by the sand grains.
Wherein, a plurality of first annular grooves 60 are arranged on the upper sand scraper 6 at intervals along the length direction of the upper sand scraper 6, a plurality of second annular grooves 70 are arranged on the lower sand scraper 7 at intervals along the length direction of the lower sand scraper 7, the first annular grooves 60 and the second annular grooves 70 are both sleeved with a circular ring 61, preferably, the circular ring 61 is made of plastic, the circular ring 61 is made of polytetrafluoroethylene in the embodiment, so that the circular ring 61 has high wear resistance, one end of the circular ring 61 is provided with an annular bulge 610, the annular bulge 610 and the circular ring 61 are integrally formed, the outer diameter of the annular bulge 610 is equal to the outer diameter of the circular ring 61, the inner diameter of the annular bulge 610 is larger than the inner diameter of the circular ring 61, the annular bulge 610 of the circular ring 61 sleeved in the first annular groove 60 is arranged upwards, the annular bulge 610 of the circular ring 61 sleeved in the second annular groove 70 is arranged downwards, and a space capable of containing sand grains is arranged between the circular ring 61 and the top of the first annular groove 60, a space for containing sand grains is arranged between the circular ring 61 and the bottom of the second annular groove 70, the height of the outer side of the annular bulge 610 is higher than that of the inner side, the end face, away from the circular ring 61, of the annular bulge 610 is in arc transition to the contact face of the annular bulge 610 and the circular ring 61, the inclined face on the annular bulge 610 enables the edge of the circular ring 61 to have a sharp corner, and the sharp corner scrapes sand grains and oil wax in the area between the pump cylinder 1 and the plunger 3 along with the upward movement of the upper sand scraper 6 and the downward movement of the lower sand scraper 7.
Preferably, the upper sand scraper 6 and the lower sand scraper 7 are both provided with sand washing ports 62, the sand washing ports 62 on the upper sand scraper 6 are positioned above the first annular groove 60, the sand washing ports 62 on the lower sand scraper 7 are positioned below the second annular groove 70, and when the sand washing device is used, after the upper sand scraper 6 and the lower sand scraper 7 are taken away from the pump cylinder 1, oil flowing out from the sand washing ports 62 can wash sand grains and oil wax stored in the upper sand scraper 6 and the lower sand scraper 7.
Wherein, the upper side wall of the first annular groove 60 is obliquely downwards arranged, the lower side wall of the second annular groove 70 is obliquely upwards arranged, and when in use, the obliquely arranged surface can guide the oil liquid flowing out from the sand washing port 62 into the first annular groove 60 and the second annular groove 70.
The bottom end of the pump cylinder 1 is provided with a sieve tube 10, and the side part of the sieve tube 10 is provided with a plurality of sand filtering openings 100 for filtering oil entering the pump cylinder 1.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a scrape wax sand control oil-well pump, includes the pump barrel, the bottom of pump barrel is equipped with the standing valve, be equipped with the plunger in the pump barrel, the top coaxial detachable of plunger is connected with the sucker rod, be equipped with upstream valve in the upper portion of plunger, be equipped with downstream valve in the lower part of plunger, its characterized in that, the top detachable of plunger is connected with scrapes the sand ware, the bottom detachable of plunger is connected with down scrapes the sand ware, the top detachable of scraping the sand ware on is connected with out the oil joint, go out the oil joint with the coaxial detachable of sucker rod is connected.
2. The wax scraping sand control oil-well pump as claimed in claim 1, wherein a plurality of first annular grooves are arranged on the upper sand scraper at intervals along the length direction of the upper sand scraper, a plurality of second annular grooves are arranged on the lower sand scraper at intervals along the length direction of the lower sand scraper, circular rings are sleeved in the first annular grooves and the second annular grooves, and spaces for containing sand grains are arranged between the circular rings and the first annular grooves and between the circular rings and the second annular grooves.
3. The wax scraping sand control oil-well pump as claimed in claim 2, wherein the material of the circular ring is plastic.
4. The wax scraping sand control oil-well pump as claimed in claim 3, wherein an annular protrusion is provided at one end of the circular ring, the outer wall of the annular protrusion is aligned with the outer wall of the circular ring, the annular protrusion of the circular ring sleeved in the first annular groove faces upward, and the annular protrusion of the circular ring sleeved in the second annular groove faces downward.
5. The wax scraping sand control oil-well pump as claimed in claim 4, wherein the height of the outer side of the annular protrusion is higher than the height of the inner side.
6. The wax scraping sand control oil-well pump as claimed in claim 4, wherein the upper sand scraper and the lower sand scraper are provided with sand washing ports, the sand washing port on the upper sand scraper is located above the first annular groove, and the sand washing port on the lower sand scraper is located below the second annular groove.
7. The wax scraping sand control oil-well pump as claimed in claim 2, wherein the upper side wall of the first annular groove is inclined downwards, and the lower side wall of the second annular groove is inclined upwards.
8. The wax scraping sand control oil-well pump as claimed in claim 1, wherein the top of the oil outlet joint is inclined upward.
9. The wax scraping sand control oil well pump as claimed in any one of claims 1 to 8, wherein the bottom end of the pump cylinder is provided with a screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121858986.8U CN215058062U (en) | 2021-08-10 | 2021-08-10 | Wax scraping sand prevention oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121858986.8U CN215058062U (en) | 2021-08-10 | 2021-08-10 | Wax scraping sand prevention oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215058062U true CN215058062U (en) | 2021-12-07 |
Family
ID=79218332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121858986.8U Active CN215058062U (en) | 2021-08-10 | 2021-08-10 | Wax scraping sand prevention oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215058062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012880A (en) * | 2022-07-19 | 2022-09-06 | 西安石油大佳润实业有限公司 | Coal-bed gas well fracturing sand pumping device and method for replacing drilling sand cover without replacing |
| CN116927725A (en) * | 2023-09-15 | 2023-10-24 | 新疆坤隆石油装备有限公司 | Underground special oil pump oil extraction system with scale prevention and wax control functions |
-
2021
- 2021-08-10 CN CN202121858986.8U patent/CN215058062U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012880A (en) * | 2022-07-19 | 2022-09-06 | 西安石油大佳润实业有限公司 | Coal-bed gas well fracturing sand pumping device and method for replacing drilling sand cover without replacing |
| CN115012880B (en) * | 2022-07-19 | 2023-08-22 | 西安石油大佳润实业有限公司 | Fracturing sand suction device of coal-bed gas well and method for replacing drilling sand cover |
| CN116927725A (en) * | 2023-09-15 | 2023-10-24 | 新疆坤隆石油装备有限公司 | Underground special oil pump oil extraction system with scale prevention and wax control functions |
| CN116927725B (en) * | 2023-09-15 | 2024-02-13 | 新疆坤隆石油装备有限公司 | Underground special oil pump oil extraction system with scale prevention and wax control functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215058062U (en) | Wax scraping sand prevention oil well pump | |
| US8328528B2 (en) | Double standing valve sucker rod pump | |
| CN208600373U (en) | A kind of steel pipe high-efficiency washing device | |
| CN115370560A (en) | Oil-well pump with exhaust function for oil field | |
| CN202157790U (en) | Oil pumping device without kill operation | |
| CN107676051B (en) | Coal bed gas well annular pressurizing coal powder fishing device and method | |
| CN206801829U (en) | Improved tubing pump | |
| CN208534447U (en) | Mechanical switch valve blow out preventer | |
| CN106677727A (en) | Continuous negative pressure sand washing device and system thereof | |
| CN100460678C (en) | Antiscaling alloy oil sucking pump | |
| CN206144766U (en) | Super -long -stroke oil pump | |
| CN215830695U (en) | Antiscale oil well pump | |
| CN2634144Y (en) | Novel combined plunger anti-clip oil pump | |
| CN201916171U (en) | Sand-resistant and dirt-resistant long plunger piston oil pump | |
| CN212272516U (en) | Rod pump | |
| CN117869266A (en) | Oil pump | |
| CN212774227U (en) | Traveling valve and forced-closing anti-blocking oil well pump | |
| CN205779595U (en) | Anti-scaling oil-well pump | |
| CN117889068B (en) | Oil field oil pump capable of preventing floating valve from being eccentrically worn | |
| CN216278441U (en) | Sand-proof whole cylinder oil-well pump | |
| CN212250420U (en) | Movable cylinder oil well pump | |
| CN108661610B (en) | Oil field tubular upper scraping oil well pump | |
| CN216477780U (en) | Whole cylinder type oil well pump | |
| CN209856014U (en) | Large-runner long-plunger sand control pump | |
| CN209510603U (en) | One kind surge underground elect mining device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221115 Address after: No. 3901, Pingbei Second Road, Baijiantan District, Karamay, Xinjiang Uygur Autonomous Region, 834000 Patentee after: Xinjiang Kunlong Petroleum Equipment Co.,Ltd. Address before: 262711 No.100 Yuanfeng street, Shouguang science and Technology Industrial Park, Weifang City, Shandong Province Patentee before: SHANDONG SHOUGUANG KUNLONG PETROLEUM MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |