CN217028845U - Anticorrosive lubricating arrangement of beam-pumping unit polished rod and production tree - Google Patents
Anticorrosive lubricating arrangement of beam-pumping unit polished rod and production tree Download PDFInfo
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- CN217028845U CN217028845U CN202122646522.7U CN202122646522U CN217028845U CN 217028845 U CN217028845 U CN 217028845U CN 202122646522 U CN202122646522 U CN 202122646522U CN 217028845 U CN217028845 U CN 217028845U
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Abstract
The utility model belongs to the field of petroleum drilling equipment, and particularly relates to an anticorrosive lubricating device for a polish rod of a pumping unit and a Christmas tree, wherein the Christmas tree comprises a large cross arranged at a well mouth and the anticorrosive lubricating device for the polish rod of the pumping unit fixed on the large cross, the anticorrosive lubricating device for the polish rod of the pumping unit comprises a supporting cylinder and a lubricating cylinder, the lubricating cylinder is butted at the upper end of the supporting cylinder, a partition plate and a pressing plate which are arranged at intervals up and down are arranged in the lubricating cylinder, a first packing box is arranged at the upper side of the partition plate, a second packing box is arranged at the lower side of the pressing plate, an anticorrosive lubricating cavity for containing anticorrosive lubricating agent is formed in a space between the pressing plate and the partition plate, an injection hole for injecting the anticorrosive lubricating agent is formed in the anticorrosive lubricating cavity, a polish rod through hole for the polish rod of the pumping unit to pass through is formed in the pressing plate and the partition plate, and corresponding anticorrosive lubricating agent is injected into the anticorrosive lubricating cavity to carry out anticorrosive or lubricating treatment on the polish rod of the pumping unit during work, avoid producing too big frictional force between beam-pumping unit polished rod and upper and lower packing, realize the protection to beam-pumping unit polished rod and packing.
Description
Technical Field
The utility model belongs to the field of petroleum drilling equipment, and particularly relates to an anticorrosive lubricating device for a polish rod of a pumping unit and a Christmas tree.
Background
In oil field exploitation, the pumping unit drives the pumping rod and the oil pump piston to move up and down to pump oil through the up-and-down reciprocating motion of the polish rod, and in order to prevent the environmental pollution and waste caused by crude oil leakage, the polish rod and the Christmas tree can be in sealing fit through a packing.
However, in the actual working process, the oil well produced liquid with certain viscosity adhered to the polished rod can adhere particle impurities to the polished rod, abrasion is caused to the polished rod which moves in a reciprocating mode, serious corrosion is generated, besides, bacterial colonies adhered to the surface of the polished rod can also corrode the polished rod, the smooth finish of the surface of the polished rod is damaged, and even pits appear on the surface of the polished rod in serious cases. The smooth rod that like this finish is not good moves from top to bottom and can cause wearing and tearing to its packing that closely cooperates, especially the oil well of intermittent type feeding liquid, and the smooth rod can not lubricated and packing friction is serious for when the packing damages the leakproofness that leads to the packing and reduces, still can shorten the life of smooth rod, increases cost of labor and oil field development cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anticorrosive lubricating device for a polished rod of a pumping unit, which aims to solve the technical problem of high oil extraction cost caused by the fact that the polished rod of the pumping unit is easily abraded and packing is also easily abraded in the prior art; the utility model also aims to provide a Christmas tree using the oil pumping unit polished rod anti-corrosion lubricating device.
In order to achieve the purpose, the technical scheme of the anticorrosive lubricating device for the polished rod of the pumping unit provided by the utility model is as follows:
the utility model provides an anticorrosive lubricating arrangement of beam-pumping unit polished rod, presses the cap including a support section of thick bamboo, first uide bushing, a lubricating cylinder, second uide bushing and packing, the inside first baffle that is provided with of a support section of thick bamboo, first baffle and a support section of thick bamboo enclose out the first packing box that is located a support section of thick bamboo upper end, and first uide bushing sets up in a support section of thick bamboo upper end for compress tightly the packing in the first packing box, and threaded connection is in a support section of thick bamboo upper end under the lubricating cylinder, and is provided with clamp plate and second baffle in a support section of thick bamboo, the clamp plate is in the second baffle downside, is used for compressing tightly first uide bushing, and second baffle and a lubricating cylinder enclose out the second packing box that is located a lubricating cylinder upper end, and packing press the cap and a lubricating cylinder upper end threaded connection for push down the second uide bushing with the packing box of exerting pressure in to the second packing box through the second uide bushing, first baffle, clamp plate, pressure plate, second uide bushing, The second baffle and packing are pressed the cap and are all had the polished rod perforation that supplies the beam-pumping unit polished rod to pass, form the anticorrosive lubrication chamber that is used for holding anticorrosive emollient between second baffle and the clamp plate, and anticorrosive lubrication chamber has the notes agent hole that is used for pouring into anticorrosive emollient.
The beneficial effects are that: according to the actual conditions of the polish rod of the oil pumping unit, anticorrosive lubricant is injected into the anticorrosive lubricating cavity, if the polish rod has a corrosion scaling phenomenon, a proper amount of corrosion and scale inhibitor is injected according to the scaling corrosion severity, if the polish rod does not have the corrosion scaling phenomenon, corresponding lubricant is injected, such as butter, the polish rod of the oil pumping unit passes through the anticorrosive lubricating cavity, so that the polish rod part of the oil pumping unit is always in the anticorrosive lubricating cavity and is contacted with the anticorrosive lubricant, the up-and-down action of the polish rod of the oil pumping unit realizes the coating of the anticorrosive lubricant on the polish rod of the oil pumping unit, the protection treatment on the polish rod of the oil pumping unit is realized, meanwhile, the polish rod of the oil pumping unit passes through the anticorrosive lubricating cavity and is contacted with upper and lower packing, the lubrication is realized between the polish rod of the oil pumping unit and the packing rod, and the durability of the polish rod and the packing are enhanced.
As a further improvement, at least two agent injection holes are provided, and at least one agent injection hole is positioned at the upper end of the corrosion-resistant lubricating cavity, so that an operator can inject the corrosion and scale inhibitor through the agent injection holes.
The beneficial effects are that: because the corrosion and scale inhibitor has better fluidity, at least one agent injection hole is arranged at the upper end of the corrosion and scale inhibitor lubricating cavity and can be used as a filling port of the corrosion and scale inhibitor, and the sealing between a filling tool and the agent injection hole is not required to be considered in the filling process, so that an operator can conveniently fill the corrosion and scale inhibitor.
As a further improvement, at least one lubricant injection hole is arranged at the lower end of the corrosion-resistant lubricating cavity, so that an operator can inject lubricant through the lubricant injection hole.
The beneficial effects are that: the lubricant generally has certain viscosity and is poorer in fluidity than a corrosion and scale inhibitor, so that the lubricant injection hole at the lower end of the anticorrosion lubricating cavity can be used as a lubricant injection port, the lubricant is injected into the anticorrosion lubricating cavity through the sealed butt joint of the injection tool and the lubricant injection hole, and the lubricant injection hole at the upper end of the anticorrosion lubricating cavity is used as an exhaust port for exhausting in the injection process, so that one port is multipurpose, the lubricant is conveniently injected, and the structure of the anticorrosion lubricating device for the polished rod of the pumping unit is ensured to be simple as far as possible.
As a further improvement, the agent injection hole at the upper end of the anti-corrosion lubrication cavity and the agent injection hole at the lower end of the anti-corrosion lubrication cavity are arranged on two sides of the lubrication cylinder along the radial direction of the lubrication cylinder.
The beneficial effects are that: when an operator carries out lubricant filling operation on the lubricant filling hole at the lower end of the anti-corrosion lubricating cavity, the lubricant filling hole at the other side is used as an exhaust port to guide gas in the anti-corrosion lubricating cavity to be discharged in the direction far away from the operator, so that the operator is protected.
As a further improvement, the agent injection hole is a threaded hole capable of being screwed with a threaded plug piece.
The beneficial effects are that: annotate the agent hole and adopt the screw hole, operating personnel can choose for use threaded stopper stifled piece to come the shutoff to annotate the agent hole for the stopper stifled piece is convenient for manufacture.
In order to achieve the purpose, the technical scheme of the Christmas tree provided by the utility model is as follows:
a Christmas tree comprises a large cross joint arranged at a well mouth and used for fixing an oil pipe, and further comprises an oil pumping unit polish rod anti-corrosion lubricating device, wherein the oil pumping unit polish rod anti-corrosion lubricating device comprises a supporting cylinder, a first guide sleeve, a lubricating cylinder, a second guide sleeve and a packing pressing cap, the lower portion of the supporting cylinder is fixed on the large cross joint, a first partition plate is arranged in the large cross joint, the first partition plate and the supporting cylinder enclose a first packing box arranged at the upper end of the supporting cylinder, the first guide sleeve is arranged at the upper end of the supporting cylinder and used for pressing a packing in the first packing box, the lower end of the lubricating cylinder is in threaded connection with the upper end of the supporting cylinder, a pressing plate and a second partition plate are arranged in the lubricating cylinder, the pressing plate is arranged at the lower side of the second partition plate and used for pressing the first guide sleeve, the second partition plate and the lubricating cylinder enclose a second packing box arranged at the upper end of the lubricating cylinder, the second guide sleeve is arranged at the upper end of the lubricating cylinder, and the packing pressing cap is in threaded connection with the upper end of the lubricating cylinder, a anticorrosive lubrication chamber for pushing down the second uide bushing is in order to exert pressure to the packing in the second packing box through the second uide bushing, first baffle, clamp plate, second baffle and packing are pressed the cap and are all had the polished rod perforation that supplies the beam-pumping unit polished rod to pass, form between second baffle and the clamp plate and are used for holding anticorrosive emollient, and anticorrosive lubrication chamber has the injection agent hole that is used for pouring into anticorrosive emollient.
The beneficial effects are that: according to the actual conditions of beam-pumping unit polished rod, pour into anticorrosive emollient into at anticorrosive lubrication intracavity, if the polished rod has the corruption scale deposit phenomenon, pour into a proper amount of corrosion inhibition antisludging agent according to the scale deposit corruption severity, if the polished rod does not corrode the scale deposit phenomenon, corresponding emollient is filled, like the butter, the beam-pumping unit polished rod passes from anticorrosive lubrication chamber, make beam-pumping unit polished rod part be in anticorrosive lubrication intracavity all the time and contact with anticorrosive emollient, the coating of anticorrosive emollient on the beam-pumping unit polished rod is realized to beam-pumping unit polished rod up-and-down action, realize the protection processing to the beam-pumping unit polished rod, simultaneously, the beam-pumping unit polished rod passes again from anticorrosive lubrication intracavity and contacts with packing from top to bottom, realize lubricating between beam-pumping unit polished rod and packing, protect packing and sucker rod, the durability of reinforcing beam-pumping unit polished rod and packing.
As a further improvement, at least two agent injection holes are arranged, and at least one agent injection hole is arranged at the upper end of the corrosion-resistant lubricating cavity, so that an operator can inject the corrosion and scale inhibitor through the agent injection holes.
The beneficial effects are that: because the corrosion and scale inhibitor has better fluidity, at least one injection hole is arranged at the upper end of the corrosion and scale inhibitor lubricating cavity and can be used as an injection port of the corrosion and scale inhibitor, the sealing between an injection tool and the injection hole is not needed to be considered in the injection process, and the corrosion and scale inhibitor is convenient to inject by operators.
As a further improvement, at least one lubricant injection hole is arranged at the lower end of the corrosion-resistant lubricating cavity, so that an operator can inject lubricant through the lubricant injection hole.
The beneficial effects are that: the lubricant generally has certain viscosity and is poorer in fluidity compared with the corrosion and scale inhibitor, so that the lubricant injection hole at the lower end of the anticorrosion lubricating cavity can be used as a lubricant injection port, the lubricant is injected into the anticorrosion lubricating cavity through the sealed butt joint of the injection tool and the lubricant injection hole, the lubricant injection hole at the upper end of the anticorrosion lubricating cavity is used as an exhaust port for exhausting in the injection process, one port is multipurpose, the lubricant is conveniently injected, and the structure of the anticorrosion lubricating device for the polished rod of the pumping unit is ensured to be simple as much as possible.
As a further improvement, the agent injection hole at the upper end of the anti-corrosion lubrication cavity and the agent injection hole at the lower end of the anti-corrosion lubrication cavity are arranged on two sides of the lubrication cylinder along the radial direction of the lubrication cylinder.
The beneficial effects are that: when an operator carries out lubricant filling operation on the lubricant filling hole at the lower end of the anti-corrosion lubricating cavity, the lubricant filling hole at the other side is used as an exhaust port to guide gas in the anti-corrosion lubricating cavity to be discharged in the direction far away from the operator, so that the operator is protected.
As a further improvement, the agent injection hole is a threaded hole capable of being screwed with a threaded plug piece.
The beneficial effects are that: the agent injection hole is a threaded hole, and an operator can use the plugging piece with threads to plug the agent injection hole, so that the plugging piece is convenient to produce and manufacture.
Drawings
Fig. 1 is a schematic structural view of an oil extractor polish rod anticorrosion lubricating device in embodiment 1 of a christmas tree according to the present invention;
description of the reference numerals:
1. a support cylinder; 2. a first guide sleeve; 3. a lubricating cylinder; 4. a second guide sleeve; 5. packing pressing cap; 6. a flange; 7. a first separator; 8. a first packing; 9. a polish rod of the oil pumping unit; 10. pressing a plate; 11. a second separator; 12. a second packing; 13. an anti-corrosion lubrication cavity; 14. a first injection hole; 15. a second injection hole; 16. gathering and transporting pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the utility model, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the utility model, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the utility model, unless expressly stated or limited otherwise, the terms "mounted", "connected" and "connected" when used in this context are to be construed broadly, as for example they may be fixedly connected, releasably connected or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object provided may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the Christmas tree provided by the utility model:
the Christmas tree comprises a large cross and a pumping unit polished rod anti-corrosion lubricating device, wherein the large cross is arranged at a wellhead, the large cross is used for fixing an oil pipe, during actual work, the pumping unit polished rod is connected with a pumping rod and an oil well pump piston and moves downwards into the oil pipe, the polished rod reciprocates up and down under the driving of the pumping unit to drive the pumping rod and the oil well pump piston to move up and down, and oil pumping is achieved.
The structure of the oil pumping unit polished rod anti-corrosion lubricating device is shown in figure 1, and comprises a supporting cylinder 1, a first guide sleeve 2, a lubricating cylinder 3, a second guide sleeve 4 and a packing gland 5, wherein a flange 6 is fixed at the lower end of the supporting cylinder 1, so that the oil pumping unit polished rod anti-corrosion lubricating device can be fixed on a large four-way joint at a wellhead through the flange 6. Be provided with first baffle 7 in the support section of thick bamboo 1, first baffle 7 encloses out first packing box with support section of thick bamboo 1, and first packing box is located 1 upper ends of support section of thick bamboo, during the use, loads first packing 8 in first packing box, and first baffle 7 supports first packing 8. The first partition 7 has a polish rod through hole through which a polish rod 9 of the pumping unit passes.
The first guide sleeve 2 is positioned on the upper side of the support cylinder 1 and used for pressing the first packing 8 downwards to enable the first packing 8 to be in sealing fit with the polish rod 9 of the pumping unit. Have connection structure between 3 lower extremes of a lubricating cylinder and the 1 upper end of a supporting cylinder, in this embodiment, 1 upper end of a supporting cylinder has the external screw thread, and 3 lower extremes of a lubricating cylinder are for having the female structure of internal thread for lubricating cylinder 3 can the screw thread butt joint in supporting cylinder 1 upper end. The lubricating cylinder 3 is internally provided with a pressing plate 10 and a second partition plate 11, as shown in fig. 1, the pressing plate 10 is positioned at the lower side of the lubricating cylinder 3, and after the lubricating cylinder 3 is connected to the supporting cylinder 1, the lubricating cylinder 3 presses the first guide sleeve 2 downwards through the pressing plate 10, so that the first guide sleeve 2 is pressed tightly. The second baffle 11 is located the 3 upsides of a lubricating section of thick bamboo, encloses the second packing box that is located the 3 upsides of a lubricating section of thick bamboo with a lubricating section of thick bamboo 3, during the use, sets up second packing 12 in the second packing box, and second uide bushing 4 is used for exerting pressure to second packing 12. Like the first partition plate 7, the pressure plate 10, the second partition plate 11 and the packing gland 5 are provided with polish rod through holes for the polish rod 9 of the pumping unit to pass through. As shown in fig. 1, the packing pressing cap 5 is installed at the upper end of the lubricating cylinder 3 in a threaded manner, and the packing pressing cap 5 presses the second guide sleeve 4 downwards to compress the second packing 12, so that the second packing 12 is in sealing fit with the polish rod 9 of the pumping unit.
The space between the pressing plate 10 and the second partition plate 11 of the lubricating cylinder 3 forms an anti-corrosion lubricating cavity 13 capable of storing anti-corrosion lubricant, a first agent injection hole 14 and a second agent injection hole 15 are formed in the cavity wall of the anti-corrosion lubricating cavity 13, as shown in fig. 1, the first agent injection hole 14 and the second agent injection hole 15 are arranged on two sides of the lubricating cylinder 3 along the radial direction of the lubricating cylinder 3, the first agent injection hole 14 is located at the lower end of the anti-corrosion lubricating cavity 13, the second agent injection hole 15 is located at the upper end of the anti-corrosion lubricating cavity 13, the first agent injection hole 14 and the second agent injection hole 15 are threaded holes, a grease nipple is mounted in the first agent injection hole 14 through threads, and a plug (not shown in the figure) is mounted in the second agent injection hole 15.
As shown in fig. 1, a gathering and transporting pipeline 16 is further connected to the supporting cylinder 1, the gathering and transporting pipeline 16 is communicated with the inner cavity of the supporting cylinder 1, a communication interface of the gathering and transporting pipeline is located on the lower side of the first partition 7, when the pumping unit works, a Christmas tree is fixed at the wellhead, a polished rod 9 of the pumping unit is driven by the pumping unit to reciprocate up and down to drive the pumping rod and a piston of the oil well pump to move up and down, and crude oil is pumped upwards through an oil pipe and finally flows out through the gathering and transporting pipeline 16. When the packing is installed, the pumping unit is stopped at a position close to a bottom dead center, the lubricating cylinder 3 is detached, the first packing 8 is added to a saturated state in the first packing box, the lubricating cylinder 3 is installed and fastened, then the packing pressing cap 5 is detached, the second packing 12 is added to the saturated state in the second packing box, and then the packing pressing cap 5 is installed and fastened.
When corrosion and scaling phenomena occur on the polished rod 9 of the pumping unit, a proper amount of corrosion and scale inhibitor is added into the anti-corrosion lubricating cavity 13 according to the scaling corrosion severity, and the corrosion and scale inhibitor has good fluidity, so the second agent injection hole 15 is directly opened to inject the agent into the anti-corrosion lubricating cavity 13, the second agent injection hole 15 is not blocked by a filling tool, and gas in the anti-corrosion lubricating cavity 13 can be simultaneously discharged through the second agent injection hole 15 in the filling process. If the corrosion and scaling phenomenon does not exist on the polished rod 9 of the pumping unit or scaling is already removed, the anti-corrosion lubricating cavity 13 is emptied, butter is injected into the anti-corrosion lubricating cavity 13 through a butter nozzle of the first grease injection hole 14 so as to lubricate the polished rod 9 of the pumping unit, and the second grease injection hole 15 is opened to be used as an exhaust port to exhaust in the process of injecting the butter.
Different from embodiment 1, in embodiment 2 of the christmas tree in the present invention, an agent injection hole is formed at the upper end of an anti-corrosion lubrication cavity of a lubrication cylinder, the agent injection hole is used to realize the injection of a corrosion and scale inhibitor and a lubricant, and a drain hole is formed at the lower end of the anti-corrosion lubrication cavity corresponding to the agent injection hole, so that liquid in the anti-corrosion lubrication cavity can be drained through the drain hole.
Different from embodiment 1, in embodiment 3 of the christmas tree according to the present invention, the first injection hole and the second injection hole are both located at the upper end of the anti-corrosion lubrication cavity.
The difference between the embodiment 4 of the christmas tree according to the present invention and the embodiment 1 is that in this embodiment, the first injection hole and the second injection hole are located on the same side of the lubricant cartridge.
The embodiment of the anticorrosive lubricating device for the polished rod of the pumping unit comprises the following components:
the pumping unit polished rod anticorrosion lubricating device described in any one of embodiments 1 to 4 of the christmas tree is the pumping unit polished rod anticorrosion lubricating device, and will not be described in detail here.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An anticorrosive lubricating device for a polish rod of an oil pumping unit is characterized by comprising a supporting cylinder (1), a first guide sleeve (2), a lubricating cylinder (3), a second guide sleeve (4) and a packing pressing cap (5), wherein a first partition plate (7) is arranged in the supporting cylinder (1), a first packing box at the upper end is enclosed by the first partition plate (7) and the supporting cylinder (1), the first guide sleeve is arranged at the upper end of the supporting cylinder and used for pressing a packing in the first packing box, the lower end of the lubricating cylinder (3) is in threaded connection with the upper end of the supporting cylinder (1), a pressing plate (10) and a second partition plate (11) are arranged in the lubricating cylinder (3), the pressing plate (10) is positioned at the lower side of the second partition plate (11) and used for pressing the first guide sleeve (2), the second partition plate (11) and the lubricating cylinder (3) are enclosed by the second packing box at the upper end of the lubricating cylinder (3), the second guide sleeve (4) is arranged at the upper end of the lubricating cylinder (3), cap (5) and lubricating cylinder (3) upper end threaded connection are pressed to the packing for push down second uide bushing (4) and exert pressure to the packing in the second packing box through second uide bushing (4), cap (5) is pressed to first baffle (7), clamp plate (10), second baffle (11) and packing all have the polished rod that supplies beam-pumping unit polished rod (9) to pass and perforate, form between second baffle (11) and clamp plate (10) and be used for holding anticorrosive lubricated anticorrosive lubrication chamber (13), and anticorrosive lubrication chamber (13) have the notes agent hole that is used for pouring into anticorrosive lubricated.
2. The corrosion-resistant lubricating device for the polish rod of the oil pumping unit according to claim 1, wherein at least two agent injection holes are provided, and at least one agent injection hole is positioned at the upper end of the corrosion-resistant lubricating cavity (13), so that an operator can inject corrosion and scale inhibitor through the agent injection holes.
3. The device for corrosion-resistant lubrication of the polish rod of a pumping unit as claimed in claim 2, wherein at least one lubricant filling hole is further formed in the lower end of the corrosion-resistant lubrication cavity (13) so that an operator can fill lubricant through the lubricant filling hole.
4. The corrosion-resistant lubricating device for the polish rod of the oil pumping unit according to claim 3, wherein the agent injection hole at the upper end of the corrosion-resistant lubricating cavity (13) and the agent injection hole at the lower end of the corrosion-resistant lubricating cavity (13) are arranged on both sides of the lubricating cylinder (3) along the radial direction of the lubricating cylinder (3).
5. The anticorrosive lubricator for polish rod of pumping unit as set forth in any one of claims 1 to 4, wherein the injection hole is a threaded hole for screwing a thread plug.
6. The Christmas tree comprises a large cross joint arranged at a well mouth and used for fixing an oil pipe, and is characterized by further comprising an oil pumping unit polished rod anti-corrosion lubricating device, wherein the oil pumping unit polished rod anti-corrosion lubricating device comprises a supporting cylinder (1), a first guide sleeve (2), a lubricating cylinder (3), a second guide sleeve (4) and a packing pressing cap (5), the lower part of the supporting cylinder (1) is fixed on the large cross joint, a first partition plate (7) is arranged in the supporting cylinder (1), a first packing box positioned at the upper end of the supporting cylinder (1) is enclosed by the first partition plate (7) and the supporting cylinder (1), the first guide sleeve (2) is arranged at the upper end of the supporting cylinder (1) and used for pressing a packing in the first packing box, the lower end of the lubricating cylinder (3) is in threaded connection with the upper end of the supporting cylinder (1), a pressing plate (10) and a second partition plate (11) are arranged in the lubricating cylinder (3), the pressing plate (10) is positioned at the lower side of the second partition plate (11), the packing pressing device is used for pressing a first guide sleeve (2), a second packing box located at the upper end of a lubricating cylinder (3) is enclosed out by a second partition plate (11) and the lubricating cylinder (3), the second guide sleeve (4) is arranged at the upper end of the lubricating cylinder (3), the packing pressing cap (5) is in threaded connection with the upper end of the lubricating cylinder (3), the second guide sleeve (4) is pressed downwards to press packing in the second packing box through the second guide sleeve (4), the first partition plate (7), the pressing plate (10), the second partition plate (11) and the packing pressing cap (5) are provided with polish rod through holes for the polish rod (9) of the pumping unit to pass through, an anti-corrosion lubricating cavity (13) used for containing anti-corrosion lubricant is formed between the second partition plate (11) and the pressing plate (10), and the anti-corrosion lubricating cavity (13) is provided with an injection hole used for injecting the anti-corrosion lubricant.
7. The Christmas tree according to claim 6, wherein there are at least two injection holes and at least one injection hole is located at the upper end of the corrosion and scale inhibitor cavity (13) so that the operator can inject the corrosion and scale inhibitor through the injection holes.
8. A Christmas tree according to claim 7 wherein at least one further injection port is located at the lower end of the corrosion-resistant lubrication chamber (13) to enable an operator to inject lubricant through the injection port.
9. Christmas tree according to claim 8, wherein the agent injection holes at the upper end of the corrosion-resistant lubrication chamber (13) and the agent injection holes at the lower end of the corrosion-resistant lubrication chamber (13) are arranged on both sides of the lubrication barrel (3) in the radial direction of the lubrication barrel (3).
10. The christmas tree according to any one of claims 6-9, wherein the agent injection hole is a threaded hole allowing screwing of a threaded plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122646522.7U CN217028845U (en) | 2021-11-01 | 2021-11-01 | Anticorrosive lubricating arrangement of beam-pumping unit polished rod and production tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122646522.7U CN217028845U (en) | 2021-11-01 | 2021-11-01 | Anticorrosive lubricating arrangement of beam-pumping unit polished rod and production tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217028845U true CN217028845U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122646522.7U Active CN217028845U (en) | 2021-11-01 | 2021-11-01 | Anticorrosive lubricating arrangement of beam-pumping unit polished rod and production tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217028845U (en) |
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2021
- 2021-11-01 CN CN202122646522.7U patent/CN217028845U/en active Active
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