Enhanced bushing pump cylinder for deep well oil extraction
By introducing a locking mechanism into the bushing pump cylinder for deep well oil production, the problem of uneven tension caused by the axial non-centering of the pump cylinder is solved, the ability to resist alternating loads is improved, and the replacement of the pump cylinder is simplified, and the cost is reduced.
Patent Information
- Application Number
- CN202422459592.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The existing bushing pump cylinder cannot be centered to the maximum extent in deep well oil production, resulting in uneven axial tension, reduced resistance to alternating loads, and cumbersome replacement process, which increases manufacturing and maintenance costs.
The locking mechanism including a locking cap, a compression ring, a sealing ring and a barrier ring is adopted to maximize the axial centering of the pump cylinder in the reinforced outer tube, obtain axial balanced tension through the locking mechanism, improve the ability to resist alternating loads, and simplify the pump cylinder replacement process.
The axial balanced tension of the pump barrel in the deep well is realized, the ability to resist alternating loads is improved, the replacement and use of the pump barrel is simplified, and the manufacturing and maintenance costs are reduced.
Smart Images
Figure CN223257039U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bushing pump barrels, in particular to an enhanced bushing pump barrel for deep well oil production. Background Art
[0002] During the oil production process in the oil field, the oil well produced fluid is lifted from the well to the surface. Commonly used oil pumping equipment includes integral oil pumps, electric submersible oil pumps, submersible screw pumps and hydraulically driven double-acting rodless oil pumps.
[0003] When the existing sleeve pump barrel is in use, the pump barrel cannot be axially centered to the maximum extent inside the reinforced outer tube, resulting in uneven axial balanced tension, which greatly reduces the pump barrel's ability to resist alternating loads. The pump barrel is a vulnerable component of deep well oil pumps. When replacing the pump barrel, a large number of tools are needed to remove the external equipment, and the operation is relatively cumbersome, thereby increasing manufacturing and maintenance costs. For this reason, an enhanced sleeve pump barrel for deep well oil production is proposed. Utility Model Content
[0004] In view of this, the embodiments of the present invention hope to provide an enhanced sleeve pump barrel for deep well oil production to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.
[0005] The technical solution of the embodiment of the present utility model is achieved as follows: a reinforced sleeve pump barrel for deep well oil production, including a sleeve pump barrel assembly, the sleeve pump barrel assembly including a reinforced outer tube, a pump barrel, and two locking mechanisms, wherein the outer wall of the pump barrel is fitted to the inner wall of the reinforced outer tube, and the two locking mechanisms are symmetrically arranged on the inner wall of the reinforced outer tube; the pump barrel is arranged on the two locking mechanisms.
[0006] In some embodiments, the locking mechanism includes a locking cap, a compression ring, several sealing rubber rings and a retaining ring, wherein the outer wall of the locking cap is fitted to the inner wall of the reinforced outer tube, and the compression ring is fitted to the locking cap; several sealing rubber rings are fitted to each other, and one of the sealing rubber rings is fitted to the compression ring; another sealing rubber ring is fitted to the retaining ring, and the outer wall of the retaining ring is fitted to the inner wall of the reinforced outer tube; the inner walls of the locking cap, the compression ring, the sealing rubber ring and the retaining ring are fitted to the outer wall of the pump barrel.
[0007] In some embodiments, a V-shaped protrusion is formed on one side of several sealing rubber rings, and a V-shaped recess is formed on the other side of several sealing rubber rings, and the V-shaped recess is adapted to fit the V-shaped protrusion.
[0008] In some embodiments, a V-shaped protrusion is provided on the side of the clamping ring close to the sealing rubber ring, and a V-shaped recess is provided on the side of the retaining ring close to the sealing rubber ring. The V-shaped protrusion of the clamping ring is matched with the V-shaped recess of one of the sealing rubber rings, and the V-shaped recess of the retaining ring is matched with the V-shaped protrusion of the other sealing rubber ring.
[0009] In some embodiments, one end of the reinforced outer tube is evenly provided with an external flow channel.
[0010] In some embodiments, threaded holes are evenly formed at both ends of the reinforced outer tube.
[0011] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:
[0012] The utility model uses a locking mechanism to center the pump barrel axially to the maximum extent inside the reinforced outer tube and obtain axial balanced tension, which greatly improves the pump barrel's ability to resist alternating loads and can more conveniently replace and use the pump barrel, a vulnerable part of the reinforced sleeve pump barrel for deep wells, saving manufacturing and maintenance costs.
[0013] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 This is a side sectional internal structure diagram of the utility model;
[0017] Figure 3 This is a diagram of the internal structure of the connection between the compression ring, the sealing rubber ring and the retaining ring of the utility model.
[0018] Figure numerals: 1. Bushing pump barrel assembly; 2. External flow channel; 3. Threaded hole; 10. Reinforced outer tube; 11. Pump barrel; 12. Locking mechanism; 120. Locking cap; 121. Pressure ring; 122. Sealing rubber ring; 123. Retaining ring. DETAILED DESCRIPTION
[0019] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.
[0020] It should be noted that the terms "first," "second," "symmetrical," "array," etc. are used only to distinguish descriptions from positional descriptions and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, limitations on features such as "first" and "symmetrical" may explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three," it should be noted that these features also explicitly or implicitly include one or more of the number of features.
[0021] In the present invention, unless otherwise expressly specified or limited, terms such as "installation," "connection," and "fixation" should be understood broadly; for example, they may refer to fixed connection, detachable connection, or integral molding; they may refer to mechanical connection, direct connection, welding, or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specification and drawings in conjunction with specific circumstances.
[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0023] like Figure 1-Figure 3 As shown, an embodiment of the utility model provides an enhanced sleeve pump barrel for deep well oil production, including a sleeve pump barrel assembly 1, the sleeve pump barrel assembly 1 includes a reinforced outer tube 10, a pump barrel 11, and two locking mechanisms 12, wherein the outer wall of the pump barrel 11 is attached to the inner wall of the reinforced outer tube 10, and the two locking mechanisms 12 are symmetrically arranged on the inner wall of the reinforced outer tube 10, and the pump barrel 11 is arranged on the two locking mechanisms 12.
[0024] In this embodiment, specifically, the locking mechanism 12 includes a locking cap 120, a compression ring 121, a plurality of sealing rubber rings 122 and a retaining ring 123, wherein the outer wall of the locking cap 120 is in contact with the inner wall of the reinforced outer tube 10, and the compression ring 121 is in contact with the locking cap 120, and the plurality of sealing rubber rings 122 are in contact with each other, and one of the sealing rubber rings 122 is in contact with the compression ring 121, and the other sealing rubber ring 122 is in contact with the retaining ring 123, and the outer wall of the retaining ring 123 is in contact with the inner wall of the reinforced outer tube 10. Fitting, the inner walls of the locking cap 120, the clamping ring 121, the sealing rubber ring 122 and the retaining ring 123 fit into the outer wall of the pump barrel 11, and through the above arrangement, the two ends of the pump barrel 11 are locked by the locking mechanism 12, and the locking mechanism 12 is composed of the locking cap 120, the clamping ring 121, the sealing rubber ring 122 and the retaining ring 123. Under the joint action of the two locking caps 120, the pump barrel 11 is axially centered to the maximum extent inside the reinforced outer tube 10, and an axial balanced tension is obtained, which greatly improves the ability of the pump barrel 11 to resist alternating loads.
[0025] In this embodiment, specifically, a V-shaped protrusion is opened on one side of several sealing rubber rings 122, and a V-shaped recess is opened on the other side of several sealing rubber rings 122. The V-shaped recess is adapted to the V-shaped protrusion. The above arrangement is used to enhance the sealing between the several sealing rubber rings 122.
[0026] In this embodiment, specifically, a V-shaped protrusion is provided on the side of the clamping ring 121 close to the sealing rubber ring 122, and a V-shaped recess is provided on the side of the retaining ring 123 close to the sealing rubber ring 122. The V-shaped protrusion of the clamping ring 121 is adapted to the V-shaped recess of one of the sealing rubber rings 122, and the V-shaped recess of the retaining ring 123 is adapted to the V-shaped protrusion of the other sealing rubber ring 122. The above settings are used to enhance the sealing between the clamping ring 121 and the retaining ring 123.
[0027] In this embodiment, specifically, one end of the reinforced outer tube 10 is evenly provided with an external flow channel 2. The number of the external flow channels 2 is processed according to the needs of use. The external flow channels 2 are evenly distributed axially and circumferentially for liquid communication between the upper and lower ends of the pump barrel 11.
[0028] In this embodiment, specifically, threaded holes 3 are evenly formed at both ends of the reinforced outer tube 10. Through the above arrangement, the reinforced outer tube 10 is connected to other components of the oil well pump via the threaded holes 3, thereby ensuring connection strength.
[0029] When the utility model is working: an external flow channel 2 is provided in the reinforced outer tube 10, and the number of the external flow channels 2 is processed according to the needs of use. The external flow channels 2 are evenly distributed axially and circumferentially, and are used to connect the liquid at the upper and lower ends of the pump barrel 11. The pump barrel 11 is built into the cavity of the reinforced outer tube 10, and the two ends of the pump barrel 11 are locked by a locking mechanism 12. The locking mechanism 12 consists of a locking cap 120, a clamping ring 121, a sealing rubber ring 122, and a retaining ring 123. Under the joint action of the two locking caps 120, the pump barrel 11 is axially centered to the maximum extent inside the reinforced outer tube 10, and an axial balanced tension is obtained, which greatly improves the ability of the pump barrel 11 to resist alternating loads. The threaded hole 3 is used to connect the reinforced outer tube 10 with other components of the oil well pump to ensure the connection strength. The pump barrel 11 is a vulnerable component of the deep well oil well pump. The setting of the locking mechanism 12 makes it more convenient to replace and use the pump barrel 11.
[0030] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.
Claims
1. An enhanced sleeve pump barrel for deep well oil production, comprising a sleeve pump barrel assembly (1), characterized in that: The bushing pump barrel assembly (1) comprises a reinforced outer tube (10), a pump barrel (11), and two locking mechanisms (12), wherein: The outer wall of the pump barrel (11) is fitted to the inner wall of the reinforced outer tube (10), and the two locking mechanisms (12) are symmetrically arranged on the inner wall of the reinforced outer tube (10); The pump barrel (11) is arranged on the two locking mechanisms (12).
2. The reinforced sleeve pump barrel for deep well oil production according to claim 1, characterized in that: The locking mechanism (12) includes a locking cap (120), a pressing ring (121), a plurality of sealing rubber rings (122) and a retaining ring (123), wherein: The outer wall of the locking cap (120) is fitted to the inner wall of the reinforced outer tube (10), and the compression ring (121) is fitted to the locking cap (120); A plurality of the sealing rubber rings (122) are fitted together, and one of the sealing rubber rings (122) is fitted together with the compression ring (121); The other sealing rubber ring (122) is fitted with the retaining ring (123), and the outer wall of the retaining ring (123) is fitted with the inner wall of the reinforced outer tube (10); The inner walls of the locking cap (120), the pressing ring (121), the sealing rubber ring (122) and the retaining ring (123) are fitted to the outer wall of the pump barrel (11).
3. The reinforced sleeve pump barrel for deep well oil production according to claim 2, characterized in that: A V-shaped protrusion is provided on one side of a plurality of sealing rubber rings (122), and a V-shaped recess is provided on the other side of a plurality of sealing rubber rings (122), wherein the V-shaped recess is adapted to the V-shaped protrusion.
4. The reinforced sleeve pump barrel for deep well oil production according to claim 3, characterized in that: The pressure ring (121) is provided with a V-shaped protrusion on one side close to the sealing rubber ring (122), and the retaining ring (123) is provided with a V-shaped recess on one side close to the sealing rubber ring (122). The V-shaped protrusion of the pressure ring (121) is matched with the V-shaped recess of one of the sealing rubber rings (122), and the V-shaped recess of the retaining ring (123) is matched with the V-shaped protrusion of the other sealing rubber ring (122).
5. The reinforced sleeve pump barrel for deep well oil production according to claim 1, characterized in that: One end of the reinforced outer tube (10) is evenly provided with an external flow channel (2).
6. The reinforced sleeve pump barrel for deep well oil production according to claim 1, characterized in that: Threaded holes (3) are evenly formed at both ends of the reinforced outer tube (10).