Oil drain device of oil lifting pipe
By wrapping the anti-blocking sheath on the outside of the sliding sleeve of the oil drainer, the structure of the elastic sleeve and the fixing cylinder is used to solve the problem of oil drainer jam caused by impurities and wax blocks in the oil well, ensuring that the oil drainer works normally underground.
Patent Information
- Application Number
- CN202422351312.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Impurities, sand particles, etc. in the oil well may enter the oil drainer, causing the slip sleeve to be blocked and affecting the oil drain function. At the same time, severe wax formation in the oil well may also cause the oil drainer components to be blocked by the wax and cause jamming.
An oil lifting pipe oil drainer is designed. By wrapping the anti-blocking sheath on the outside of the sliding sleeve body, the zigzag structure of the elastic sleeve and the structure of the fixing cylinder are used to ensure that the elastic sleeve is stablely wrapped on the outside of the sliding sleeve and is fixed in place by fixing bolts to prevent impurities and wax blocks from entering.
It effectively prevents impurities and wax blocks from entering the slip sleeve in the oil well, prevents obstacles, ensures that the oil drainer works normally underground, and maintains the normal operation of the oil drain function.
Smart Images
Figure CN222949835U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of oil well equipment, in particular to an oil lifting pipe oil drainer. Background Art
[0002] Anchored oil drainer is a device used for oil draining and hot washing, small-cycle backwashing or small-cycle acidizing of oil pipe strings during well repair of oil pumping wells in oil fields. Its working principle is mainly to pressurize the oil pipe. When the pressure reaches a certain value, the constant pressure shear nails are cut off, the sliding sleeve moves down, the constant pressure hole is opened, the oil sleeve is connected, and the liquid in the pipe string flows out immediately. In practical applications, the anchored oil drainer also has some advantages, such as simple structure, reliable operation, long service life, low manufacturing cost, wide adaptability, easy operation, etc. At the same time, it can also effectively prevent the liquid in the oil pipe from leaking to the ground, protect the environment, reduce the damage to the well site caused by the leakage of crude oil in the oil pipe string, and realize safe and environmentally friendly operation and construction.
[0003] Impurities, sand particles, etc. in the oil well may enter the oil drainer and cause the sleeve to get stuck, making it unable to move normally and affecting the oil drainage function; if the oil well is severely waxed, the components of the anchored oil drainer may also be clogged with wax, causing sticking. Utility Model Content
[0004] The utility model aims to provide an oil pipe oil drainer to solve the defect mentioned in the background technology that impurities, sand particles, etc. in the oil well may enter the inside of the oil drainer, causing the sliding sleeve to be blocked, making it unable to move normally and affecting the oil drain function.
[0005] To achieve the above-mentioned purpose, an oil lift pipe oil drainer is provided, comprising an oil drainer body, an upper connecting seat is fixedly installed on the top of the oil drainer body, and a lower connecting seat is fixedly installed on the bottom of the oil drainer body, and a sliding sleeve body is installed on the oil drainer body, and the outer side of the sliding sleeve body is wrapped with an anti-blocking sleeve, the anti-blocking sleeve comprises an elastic sleeve covering the outer side of the sliding sleeve body, an upper fixing cylinder is fixedly installed on the top of the elastic sleeve, and a lower fixing cylinder is fixedly installed on the bottom of the elastic sleeve.
[0006] Preferably, a support seat is fixedly mounted on the outer side of the bottom of the oil drain body, and an upper groove is provided on the upper surface of the support seat, while a lower groove is provided on the lower surface of the support seat, and the diameter of the support seat is greater than the diameter of the elastic sleeve.
[0007] Preferably, the elastic sleeve is made of rubber material and has a sawtooth-shaped cross-section, and the length of the elastic sleeve is greater than the length of the sliding sleeve body.
[0008] Preferably, an upper fixing tube is fixedly mounted on the top of the elastic sleeve, and a lower fixing tube is fixedly mounted on the bottom of the elastic sleeve, and the lower fixing tube and the upper fixing tube are symmetrical structures with respect to the elastic sleeve.
[0009] Preferably, six groups of openings are evenly formed on the outer sides of the lower fixing tube and the upper fixing tube, and six groups of screw holes are evenly formed on the circumferential positions of the upper and lower surfaces of the sliding sleeve body, and the screw holes are adapted to the size of the fixing bolts.
[0010] Preferably, the fixing bolt passes through an opening provided on the upper fixing tube and is threadedly fixed inside a threaded hole provided on the outer surface of the anti-blocking sheath.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The utility model uses the elastic sleeve to be screwed and fixed to the outer side of the sliding sleeve body through the upper fixing tube and the lower fixing tube thereon, and is screwed and fixed through multiple sets of fixing bolts, so as to ensure the stability of the elastic sleeve when protecting and isolating the sliding sleeve body. When the oil drainer body is working underground, impurities and sand particles in the oil well will not enter the interior of the sliding sleeve body, so as to avoid the sliding sleeve being blocked, so that the sliding sleeve body can move normally underground, and the normal operation of the oil drain function can be ensured; at the same time, it is prevented that the oil well is seriously waxed, resulting in the sliding sleeve body on the oil drainer being blocked by wax, resulting in the occurrence of blocking;
[0013] 2. The utility model wraps the elastic sleeve on the anti-blocking sleeve on the outside of the sliding sleeve body. The elastic sleeve is made of rubber material and has a sawtooth-shaped cross-section, so that the elastic sleeve can adapt and deform with the sliding sleeve body on the oil drain body during lifting and lowering. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;
[0015] Figure 2 for Figure 1 Bottom view of
[0016] Figure 3 for Figure 1 A top view of
[0017] Figure 4 This is an enlarged view of the anti-blocking sheath installation structure;
[0018] Figure 5 Schematic diagram of the elastic sleeve.
[0019] Numbers in the figure: 1, oil drain body; 2, support seat; 21, upper slot; 22, lower slot; 3, lower connecting seat; 4, upper connecting seat; 5, sliding sleeve body; 6, anti-blocking sleeve; 61, elastic sleeve; 62, upper fixing tube; 63, lower fixing tube; 64, opening; 65, screw hole; 66, fixing bolt. DETAILED DESCRIPTION
[0020] See also Figure 1-5 The utility model provides an oil lifting pipe oil drainer, comprising an oil drainer body 1, an upper connecting seat 4 is fixedly installed on the top of the oil drainer body 1, and a lower connecting seat 3 is fixedly installed on the bottom of the oil drainer body 1, and a sliding sleeve body 5 is installed on the oil drainer body 1, and the outer side of the sliding sleeve body 5 is wrapped with an anti-blocking sleeve 6, the anti-blocking sleeve 6 includes an elastic sleeve 61 covering the outer side of the sliding sleeve body 5, and an upper fixing cylinder 62 is fixedly installed on the top of the elastic sleeve 61, and a lower fixing cylinder 63 is fixedly installed on the bottom of the elastic sleeve 61.
[0021] As can be seen from the above, when in use, the operator installs the anti-blocking sleeve 6 on the outside of the sliding sleeve body 5 on the oil drain body 1 before putting the oil drain body 1 into the oil well for use. The specific method is: wrap the elastic sleeve 61 on the anti-blocking sleeve 6 on the outside of the sliding sleeve body 5. The elastic sleeve 61 is made of rubber material and has a serrated cross-section, so that the elastic sleeve 61 can cooperate with the sliding sleeve body 5 on the oil drain body 1 to adapt and deform during the lifting operation.
[0022] As a preferred embodiment, a support seat 2 is fixedly installed on the outer bottom of the oil drain body 1, and an upper groove 21 is opened on the upper surface of the support seat 2, and a lower groove 22 is opened on the lower surface of the support seat 2. The diameter of the support seat 2 is larger than the diameter of the elastic sleeve 61.
[0023] As a preferred implementation, the elastic sleeve 61 is made of rubber material and has a sawtooth-shaped cross-section. The length of the elastic sleeve 61 is greater than the length of the sliding sleeve body 5 .
[0024] As can be seen from the above, when in use, the elastic sleeve 61 is screwed and fixed to the outside of the sleeve body 5 through the upper fixing tube 62 and the lower fixing tube 63 thereon, and is screwed and fixed by multiple sets of fixing bolts 66, thereby ensuring the stability of the elastic sleeve 61 when protecting and isolating the sleeve body 5. When the oil drainer body 1 is working underground, impurities and sand particles in the oil well will not enter the interior of the sleeve body 5, thereby avoiding the sleeve from getting stuck, so that the sleeve body 5 can move normally underground, thereby ensuring the normal operation of the oil drainage function; at the same time, it is avoided that the oil well is severely waxed, resulting in the sleeve body 5 on the oil drainer being clogged with wax, resulting in jamming.
[0025] As a preferred embodiment, the upper fixing tube 62 is fixedly installed on the top of the elastic sleeve 61 , and the lower fixing tube 63 is fixedly installed on the bottom of the elastic sleeve 61 , and the lower fixing tube 63 and the upper fixing tube 62 are symmetrical structures with respect to the elastic sleeve 61 .
[0026] Six groups of openings 64 are evenly formed on the outer sides of the lower fixing tube 63 and the upper fixing tube 62 , and six groups of screw holes 65 are evenly formed on the circumferential positions of the upper and lower surfaces of the sliding sleeve body 5 . The screw holes 65 are adapted to the sizes of the fixing bolts 66 .
[0027] As a preferred embodiment, the fixing bolt 66 passes through the opening 64 provided on the upper fixing tube 62 and is screwed and fixed inside the screw hole 65 provided on the outer surface of the anti-blocking sheath 6 .
[0028] Working principle: When using the oil drain body 1, the operator puts the oil drain body 1 into the oil well for use, and then installs the anti-blocking sleeve 6 on the outside of the sliding sleeve body 5 on the oil drain body 1. The specific method is: wrap the elastic sleeve 61 on the anti-blocking sleeve 6 on the outside of the sliding sleeve body 5. The elastic sleeve 61 is made of rubber material and has a sawtooth structure in cross section, so that the elastic sleeve 61 can be adapted and deformed in conjunction with the sliding sleeve body 5 on the oil drain body 1 during lifting and lowering. The elastic sleeve 61 is connected to the upper fixing tube 62 and the lower fixing tube 62 on the anti-blocking sleeve 6. The fixing tube 63 is screwed and fixed on the outer side of the sleeve body 5, and is screwed and fixed by multiple sets of fixing bolts 66, so as to ensure the stability of the elastic sleeve 61 when protecting and isolating the sleeve body 5. When the oil drainer body 1 is working underground, impurities and sand particles in the oil well will not enter the interior of the sleeve body 5, so as to avoid the sleeve being stuck, so that the sleeve body 5 can move normally underground, and the oil drainage function can be ensured to work normally; at the same time, it is prevented from serious wax deposition in the oil well, which may cause the sleeve body 5 on the oil drainer to be blocked by wax and cause a jam.
Claims
1. An oil pipe oil drainer, comprising an oil drainer body (1), characterized in that: An upper connecting seat (4) is fixedly mounted on the top of the oil drain body (1), and a lower connecting seat (3) is fixedly mounted on the bottom of the oil drain body (1). A sliding sleeve body (5) is mounted on the oil drain body (1), and an anti-blocking sleeve (6) is wrapped around the outer side of the sliding sleeve body (5). The anti-blocking sleeve (6) includes an elastic sleeve (61) covering the outer side of the sliding sleeve body (5), and an upper fixing cylinder (62) is fixedly mounted on the top of the elastic sleeve (61), and a lower fixing cylinder (63) is fixedly mounted on the bottom of the elastic sleeve (61).
2. The oil drain of the oil lifting pipe according to claim 1, characterized in that: A support seat (2) is fixedly mounted on the outer side of the bottom of the oil drain body (1), and an upper groove (21) is provided on the upper surface of the support seat (2), while a lower groove (22) is provided on the lower surface of the support seat (2), and the diameter of the support seat (2) is greater than the diameter of the elastic sleeve (61).
3. The oil drain of the oil lifting pipe according to claim 1, characterized in that: The elastic sleeve (61) is made of rubber material and has a sawtooth-shaped cross-section. The length of the elastic sleeve (61) is greater than the length of the sliding sleeve body (5).
4. The oil drain of the oil lifting pipe according to claim 3, characterized in that: The top of the elastic sleeve (61) is fixedly mounted with an upper fixing cylinder (62), and the bottom of the elastic sleeve (61) is fixedly mounted with a lower fixing cylinder (63), and the lower fixing cylinder (63) and the upper fixing cylinder (62) are symmetrical structures with respect to the elastic sleeve (61).
5. The oil drain of the oil lifting pipe according to claim 4, characterized in that: Six groups of openings (64) are evenly arranged on the outer sides of the lower fixing tube (63) and the upper fixing tube (62), and six groups of screw holes (65) are evenly arranged at circumferential positions on the upper and lower surfaces of the sliding sleeve body (5), and the sizes of the screw holes (65) and the fixing bolts (66) are adapted.
6. The oil drain of the oil lifting pipe according to claim 5, characterized in that: The fixing bolt (66) passes through an opening (64) provided on the upper fixing tube (62) and is screwed and fixed inside a screw hole (65) provided on the outer surface of the anti-blocking sheath (6).