CN214787946U - Leakage-free sealing plunger, anti-blocking oil well pump and slow oil extraction system - Google Patents
Leakage-free sealing plunger, anti-blocking oil well pump and slow oil extraction system Download PDFInfo
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- CN214787946U CN214787946U CN202121362686.0U CN202121362686U CN214787946U CN 214787946 U CN214787946 U CN 214787946U CN 202121362686 U CN202121362686 U CN 202121362686U CN 214787946 U CN214787946 U CN 214787946U
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Abstract
The utility model discloses a leak-proof sealing plunger and anti-sticking oil-well pump and take out oil system slowly, including upper valve bonnet (101), plunger pipe (103), lower valve bonnet (106) and lower valve seat pressure cap (108) that from top to bottom seal fixed connection in proper order to and locate upper valve ball valve seat (102) and lower valve ball valve seat (107) of lower valve bonnet (106) inside upper valve bonnet (101), fixed cover from top to bottom on the body outer wall of plunger pipe (103) has been connected with a plurality of copper leather cup supporting sleeves (104), fixed one copper leather cup (105) of being equipped with on each copper leather cup supporting sleeve (104), copper leather cup (105) upper portion is equipped with many slots (1052); the utility model discloses a copper seal plunger structure, copper sealing member are equipped with simultaneously and scrape the dirty sword and prevent the card pump, eliminate the leakage of oil-well pump at the at utmost to improve oil recovery efficiency, reduce the well workover number of times, reduce the well workover cost by a wide margin.
Description
Technical Field
The utility model relates to an oil-well pump and oil recovery system especially relate to a leak-proof sealed plunger and anti-sticking oil-well pump and take out oil system slowly.
Background
In the current oilfield exploitation, a standard oil pump plunger and a pump barrel are in clearance fit, and oil well pumps have a certain amount of leakage. In the production process, the plunger reciprocates for thousands of times every day in the pump cylinder, the oil flow is continuously lifted to the ground, part of sand and slurry in the stratum can enter between the pump cylinder and the plunger of the oil well pump along with the oil flow, the clearance of the pump is small, the leakage quantity is small, the pump efficiency is high, but the pump is easily lifted and repaired due to pump clamping, before the pump is completely clamped, the relative motion of the plunger and the pump cylinder can cause scratches on the surface of the plunger and the inner surface of the pump cylinder, a large number of scratches can reduce the pump efficiency, even can cause complete failure of the oil well pump, frequent faults of the oil well pump inevitably cause that the workload and the cost of well repair operation are greatly increased, and the normal production is seriously influenced; meanwhile, the leakage is caused due to the gap between the pump barrel and the plunger, and the yield of crude oil is influenced.
The oil field development enters the middle and later stages, the crude oil content in the stratum is reduced, the liquid supply amount of the oil well is reduced, the probability of air lock of the oil well pump is increased, the dry grinding times of the plunger and the pump cylinder are increased, the abrasion of the plunger and the pump cylinder can be aggravated, the oil well pump is enabled to be out of work quickly, meanwhile, the dry grinding times of a polish rod at the sealing position of a well head are increased, and frequent faults of the oil well pump can also be caused. Aiming at the problem, one solution is to match the liquid supply amount of the oil well stratum by reducing the frequency of stroke of the oil pumping unit, so that the probability of air lock of the oil well pump and the dry grinding frequency of a plunger and a pump barrel can be greatly reduced. However, the current standard oil pump has a leakage which limits the stroke frequency of the oil pumping unit, and an excessively small stroke frequency can cause the leakage to be larger than the oil pumping amount, resulting in a great reduction of the pump efficiency.
In order to improve the crude oil yield in the middle and later periods of an oil field and guarantee the normal production requirement, the development of a leakage-free oil well pump plunger, an anti-blocking oil well pump and a slow oil extraction system is urgently needed, and the contradiction is relieved through a slow oil extraction process.
SUMMERY OF THE UTILITY MODEL
The shortcoming that exists to the above-mentioned prior art, the utility model aims to provide a sealed plunger of no hourglass and anti-sticking oil-well pump and take out the oil system slowly, adopt the sealed plunger structure of copper, its copper seal spare and pump barrel inner wall are sealed through cup jointing the realization, the sand grain can not get into between oil-well pump barrel and the plunger along with the oil stream, the copper seal spare is equipped with scrapes the dirty sword and prevents the card pump simultaneously, the leakage quantity of oil-well pump is eliminated at utmost, thereby improve oil recovery efficiency, reduce the well repair number of times, reduce the well repair cost by a wide margin.
The utility model discloses a first aspect provides a sealed plunger of no hourglass, press the cap including last valve bonnet, plunger pipe, lower valve bonnet and the lower disk seat that from top to bottom seals fixed connection in proper order to and locate the inside last valve ball disk seat of valve bonnet and locate the inside lower valve ball disk seat of valve bonnet down, from the top down fixed cover has been connected a plurality of copper leather cup support covers, every on the pipe shaft outer wall of plunger pipe fixed being equipped with a copper leather cup on the copper leather cup support cover, the copper leather cup is the thin bowl form down, its lower part with copper leather cup support cover fixed connection, upper portion fall into a plurality of equal divisions through many slots of even setting, and the slot of the last adjacent copper leather cup of plunger pipe staggers separately.
As the utility model discloses technical scheme's further optimization, go up valve bonnet, plunger pipe, lower valve bonnet and press down the disk seat and carry out sealed fixed connection through the taper pipe screw thread respectively between the cap.
As the utility model discloses technical scheme's further optimization, adopt interference fit's mode to fix between the pipe shaft of copper leather bowl support cover and plunger pipe and cup joint.
As the utility model discloses technical scheme's further optimization, copper leather cup and copper leather cup support and carry out sealed fixed connection through the taper pipe screw thread between the cover, or adopt interference fit's mode to fix and cup joint.
As the utility model discloses technical scheme's further optimization, the top of copper leather cup is equipped with the dirt sword of scraping that is the acute angle, effectively strikes off the sand grain and the dirt that the pump barrel inner wall adheres at the reciprocating motion in-process of plunger and pump barrel.
As the utility model discloses technical scheme's further optimization, the quantity of copper leather bowl upper portion slot is 4, 6 or 8, equally divides copper leather bowl upper portion through the slot, can effectively eliminate its extrusion stress to strengthen the leakproofness between plunger and the pump barrel greatly.
As the utility model discloses technical scheme's further optimization, the number that sets up the copper leather cup on the plunger pipe is for being no less than 3 to further strengthen the leakproofness between plunger and the pump barrel.
As the utility model discloses technical scheme's further optimization, set up or set up with the mode of part overlapping with the mode of end to end between the adjacent copper leather bowl on the plunger pipe.
The utility model discloses an it is still another aspect to provide an anti-sticking oil-well pump, including the pump barrel, the upper end of pump barrel is equipped with sealing connection subassembly, and its inside sealed plunger that has cup jointed, sealed plunger is aforementioned arbitrary any the sealed plunger of no hourglass lose.
The utility model provides a still another aspect provides a slow oil extraction system, including beam-pumping unit, motor, reducing gear box, production tree, oil recovery well, tubing string and sucker rod post, be equipped with the band pulley reduction gear between motor and reducing gear box; the lower end of the oil pipe column is fixedly connected with the upper end of an oil well pump in a sealing manner, and the oil well pump is the anti-blocking oil well pump.
In the technical scheme, the leakage of the oil well pump can be eliminated to the greatest extent by utilizing the sealing sleeve connection between the copper leather cup and the pump cylinder, so that the pump diameter of the anti-blocking oil well pump can be improved when the liquid production quantity is the same on the oil well in the middle and later periods, and the belt wheel speed reducer is arranged between the motor and the reduction gearbox to greatly reduce the stroke frequency of the oil pumping unit, thereby reducing the air lock probability of the oil well pump, greatly improving the pump efficiency, improving the oil extraction efficiency and reducing the well repairing times.
To sum up, for prior art, the utility model discloses a leak-proof sealed plunger and anti-sticking oil-well pump and take out the oil extraction system slowly have following technical advantage:
(1) the oil extraction efficiency can be effectively improved;
(2) the copper leather cup has high temperature resistance and good abrasion resistance, and can avoid eccentric wear;
(3) the copper leather cup does not wear the pump barrel, and when the copper leather cup is damaged, the oil pumping rod string is only required to be lifted up to be replaced, so that the maintenance is simple;
(4) the slow extraction of oil can effectively reduce the abrasion of an oil well pump and the pump clamping probability, and greatly reduce the well repairing cost.
Drawings
Fig. 1 is a schematic structural view of a leakless sealing plunger, an anti-sticking oil well pump and an oil extraction device according to an embodiment of the present invention;
fig. 2 is a structural sectional view of a leak-free sealing plunger in an embodiment of the present invention;
FIG. 3 is an enlarged view of a plurality of copper cups on the plunger according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a single copper cup in an embodiment of the present invention;
FIG. 5 is an isometric view of a plurality of copper cups in an embodiment of the present invention;
FIG. 6 is a sectional view of the oil pump with anti-sticking function according to an embodiment of the present invention;
in the figure: 1-oil pumping unit, 2-motor, 3-belt wheel reducer, 4-reduction gearbox, 5-Christmas tree, 6-oil well, 7-tubing string, 8-sucker rod string, 9-anti-blocking oil well pump, 10-sealing plunger, 91-pump barrel, 101-upper valve cover, 102-upper valve ball valve seat, 103-plunger pipe, 104-copper cup support sleeve, 105-copper cup, 106-lower valve cover, 107-lower valve ball valve seat, 108-lower valve seat press cap, 1051-scraping blade and 1052-cutting seam.
Detailed Description
The technical solutions in the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1-6 show the embodiments of the leak-proof sealing plunger, the anti-sticking oil well pump and the slow oil extraction system of the present invention.
As shown in fig. 2-5, a leakless sealed plunger includes an upper valve cover 101, a plunger tube 103, a lower valve cover 106, and a lower valve seat pressing cap 108, which are fixedly connected from top to bottom in a sealing manner, and an upper valve ball valve seat 102 and a lower valve ball valve seat 107, which are arranged inside the upper valve cover 101 and the lower valve ball valve seat 106, respectively, three copper cup support sleeves 104 are fixedly connected to an outer wall of a tube body of the plunger tube 103 from top to bottom, a copper cup 105 is fixedly arranged on each copper cup support sleeve 104, the copper cup 105 is in a shape of a bowl with a thick upper part and a thin lower part, the lower part of the copper cup support sleeve 104 is fixedly connected to the upper part of the copper cup support sleeve, the upper part of the copper cup is divided into six equal parts by six evenly arranged slits 1052, and the slits 1052 of adjacent copper cups 105 on the plunger tube 103 are staggered respectively.
In this embodiment, the upper valve cover 101, the plunger tube 103, the lower valve cover 106 and the lower valve seat pressing cap 108 are connected in a sealing and fixing manner through taper tube threads.
In this embodiment, the copper cup support sleeve 104 and the tube body of the plunger tube 103 are fixedly sleeved by interference fit.
In this embodiment, the copper cup 105 and the copper cup support sleeve 104 are fixedly connected in a sealing manner through taper pipe threads.
In this embodiment, the top of the copper cup 105 is provided with a scraping edge 1051 at an acute angle.
In this embodiment, adjacent copper cups 105 on the plunger tube 103 are arranged in a head-to-tail manner.
As shown in fig. 6, the anti-sticking oil well pump comprises a pump cylinder 91, wherein a sealing connection assembly is arranged at the upper end of the pump cylinder 91, a sealing plunger 10 is sleeved inside the pump cylinder 91, and the sealing plunger 10 is the leakage-free sealing plunger.
As shown in fig. 1, a slow oil extraction system comprises an oil pumping unit 1, a motor 2, a reduction gearbox 4, a Christmas tree 5, an oil production well 6, a tubing string 7 and a sucker rod string 8, wherein a belt wheel reducer 3 is arranged between the motor 2 and the reduction gearbox 4; the lower end of the oil pipe column 7 is fixedly connected with the upper end of an oil well pump 9 in a sealing mode, and the oil well pump 9 is the anti-blocking oil well pump.
The utility model discloses a sealed plunger of no hourglass and anti-sticking oil-well pump and take out oil extraction system slowly is applicable to the oil field oil recovery that is in development middle and later stages, the crude oil content in the stratum at this moment reduces, the oil well liquid supply volume descends, utilize the sealed cup joint between copper leather cup 105 and the pump barrel 91, can eliminate the leakage volume of oil-well pump 9 at the at utmost, therefore through improving anti-sticking oil-well pump 9's pump footpath, and set up band pulley reduction gear 3 between motor 2 and reducing gear box 4, can reduce the stroke frequency of beam-pumping unit 1 by a wide margin, both reduce the probability of oil-well pump 9 airlock, can increase substantially the pump efficiency again, thereby improve oil recovery efficiency, reduce the well repair number of times, reduce the well repair cost.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "upper", "lower", "one side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Also, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and thus, for example, "connected" may be fixedly, detachably, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. that may be made by those skilled in the art without departing from the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (10)
1. The utility model provides a sealed plunger of no hourglass loses, presses cap (108) including last valve bonnet (101), plunger pipe (103), lower valve bonnet (106) and lower disk seat that from top to bottom seals fixed connection in proper order to and locate last valve ball disk seat (102) of last valve bonnet (101) inside and locate lower valve ball disk seat (107) of lower valve bonnet (106) inside, its characterized in that: the plunger tube is characterized in that a plurality of copper leather cup supporting sleeves (104) are fixedly sleeved on the outer wall of the tube body of the plunger tube (103) from top to bottom, a copper leather cup (105) is fixedly arranged on each copper leather cup supporting sleeve (104), each copper leather cup (105) is in a bowl shape with a thick upper part and a thin lower part, the lower part of each copper leather cup supporting sleeve is fixedly connected with the copper leather cup supporting sleeve (104), the upper part of each copper leather cup supporting sleeve is divided into a plurality of equal parts through a plurality of uniformly arranged cutting seams (1052), and the cutting seams (1052) of the adjacent copper leather cups (105) on the plunger tube (103) are staggered respectively.
2. The leak-free sealed plunger of claim 1, wherein: the upper valve cover (101), the plunger pipe (103), the lower valve cover (106) and the lower valve seat pressing cap (108) are fixedly connected in a sealing mode through taper pipe threads.
3. The leak-free sealed plunger of claim 1, wherein: and the copper leather cup supporting sleeve (104) and the plunger tube (103) are fixedly sleeved by adopting an interference fit mode.
4. The leak-free sealed plunger of claim 1, wherein: the copper leather cup (105) and the copper leather cup supporting sleeve (104) are fixedly connected in a sealing mode through taper pipe threads or fixedly sleeved in an interference fit mode.
5. The leak-free sealed plunger of claim 1, wherein: the top of the copper leather cup (105) is provided with a scale scraping blade (1051) with an acute angle.
6. The leak-free sealed plunger of claim 1, wherein: the number of the slots (1052) on the upper part of the copper leather cup (105) is 4, 6 or 8.
7. The leak-free sealed plunger of claim 1, wherein: the number of the copper leather cups (105) arranged on the plunger tube (103) is not less than 3.
8. The leak-free sealed plunger of claim 1, wherein: the adjacent copper leather cups (105) on the plunger tube (103) are arranged in a head-to-tail connection mode or in a partially overlapping mode.
9. The utility model provides an anti-sticking oil-well pump, includes pump barrel (91), the upper end of pump barrel (91) is equipped with seal connection subassembly, its characterized in that: a sealing plunger (10) is sleeved inside the pump barrel (91), and the sealing plunger (10) is the leakless sealing plunger of any one of claims 1 to 8.
10. The utility model provides a take out oil system slowly, includes beam-pumping unit (1), motor (2), reducing gear box (4), production tree (5), oil recovery well (6), tubing string (7) and sucker rod string (8), its characterized in that: a belt wheel speed reducer (3) is arranged between the motor (2) and the reduction box (4); the lower end of the tubing string (7) is fixedly connected with the upper end of the oil well pump (9) in a sealing manner, and the oil well pump (9) is the anti-sticking oil well pump according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121362686.0U CN214787946U (en) | 2021-06-18 | 2021-06-18 | Leakage-free sealing plunger, anti-blocking oil well pump and slow oil extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121362686.0U CN214787946U (en) | 2021-06-18 | 2021-06-18 | Leakage-free sealing plunger, anti-blocking oil well pump and slow oil extraction system |
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| Publication Number | Publication Date |
|---|---|
| CN214787946U true CN214787946U (en) | 2021-11-19 |
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| CN202121362686.0U Active CN214787946U (en) | 2021-06-18 | 2021-06-18 | Leakage-free sealing plunger, anti-blocking oil well pump and slow oil extraction system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398422A (en) * | 2023-06-09 | 2023-07-07 | 克拉玛依胜利高原机械有限公司 | Injection-production integrated anti-blocking rod pump |
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2021
- 2021-06-18 CN CN202121362686.0U patent/CN214787946U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398422A (en) * | 2023-06-09 | 2023-07-07 | 克拉玛依胜利高原机械有限公司 | Injection-production integrated anti-blocking rod pump |
| CN116398422B (en) * | 2023-06-09 | 2023-09-01 | 克拉玛依胜利高原机械有限公司 | Injection-production integrated anti-blocking rod pump |
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