CN112145829A - Double-end oil pipe nipple for oil field - Google Patents
Double-end oil pipe nipple for oil field Download PDFInfo
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- CN112145829A CN112145829A CN202010980259.2A CN202010980259A CN112145829A CN 112145829 A CN112145829 A CN 112145829A CN 202010980259 A CN202010980259 A CN 202010980259A CN 112145829 A CN112145829 A CN 112145829A
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- oil pipe
- pipe nipple
- ring
- wall
- joint
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- 210000002445 nipple Anatomy 0.000 title claims abstract description 121
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000003208 petroleum Substances 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims description 46
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 abstract description 126
- 239000010779 crude oil Substances 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the technical field of oil exploitation facilities, and discloses a double-end oil pipe nipple for an oil field, which comprises an oil pipe nipple, wherein petroleum pipelines are sleeved outside the two ends of the oil pipe nipple in a threaded manner, adjusting spiral rings are sleeved on the two sides of the middle part of the outer wall of the oil pipe nipple in a threaded manner, and limiting rings positioned on the opposite sides of the two adjusting spiral rings are fixedly sleeved on the two sides of the middle part of the outer wall of the oil pipe nipple. According to the oil pipe nipple joint, the five descaling mechanisms which are distributed equidistantly are arranged in the oil pipe nipple joint, the spiral guide groove is formed in the descaling mechanisms, so that the spiral crude oil water flow is formed when crude oil passes through the spiral guide groove to wash the inner wall of the oil pipe nipple joint, scaling of the inner wall of the oil pipe nipple joint is avoided, and meanwhile, when the expansion supporting mechanism is used for pushing the rubber sealing ring into the annular clamping groove, the expansion supporting mechanism is in clamping connection with the annular clamping groove, the connection stability of the oil pipe nipple joint and a petroleum pipeline is improved, and therefore the practicability of the double-end oil pipe nipple joint for the oil field is improved.
Description
Technical Field
The invention relates to the technical field of oil exploitation facilities, in particular to a double-end oil pipe nipple for an oil field.
Background
The pipe nipple is divided into an oil pipe nipple and a casing nipple, is a common accessory in industrial pipeline connection, is a common threaded nipple, is divided into a double-end external thread, a single-end external thread and a flat-end external thread, is also a nipple connected by a flange and the like, is a short oil pipe, is compared with the oil pipe, has different length specifications, is the same for others, has the length of 0.25m, 0.5m, 1m, 1.5m and the like, and is used for assembling a well-descending pipe column.
The existing oil pipe nipple is used for connecting an oil pipe, two ends of the oil pipe nipple are connected through threads, the oil pipe nipple is frequently disassembled and assembled when the oil pipe is short, the threads are abraded due to repeated disassembly and assembly, the sealing performance of the oil pipe joint is reduced, and meanwhile, impurities are contained in crude oil during the process of using the oil pipe nipple, so that the inside of the oil pipe nipple is easy to adhere and block, oil dirt is generated, the crude oil is not beneficial to conveying, and therefore the double-head oil pipe nipple for the oil field is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the double-end oil pipe nipple for the oil field, which has the advantages of increasing the sealing property of the joint of the oil pipe nipple and an oil pipe and avoiding oil dirt in the oil pipe nipple, and solves the problems in the prior art.
The invention provides the following technical scheme: a double-end oil pipe nipple for oil fields comprises an oil pipe nipple, wherein petroleum pipelines are sleeved on the outer portions of two ends of the oil pipe nipple in a threaded manner, adjusting spiral rings are sleeved on the two sides of the middle portion of the outer wall of the oil pipe nipple in a threaded manner respectively, limiting rings positioned on the opposite sides of the two adjusting spiral rings are respectively fixedly sleeved on the two sides of the middle portion of the outer wall of the oil pipe nipple and movably connected with the adjusting spiral rings, an extrusion mechanism is movably sleeved inside the pipeline wall of the two ends of the oil pipe nipple, one end of the extrusion mechanism is movably connected with one side of the adjusting spiral rings, an expansion supporting mechanism is movably connected with the other end of the extrusion mechanism and movably sleeved inside the pipeline wall of the oil pipe nipple, a rubber sealing ring positioned on the outer side of the expansion supporting mechanism is fixedly sleeved on the outer wall of the oil pipe nipple, an elastic ring positioned on the, the inner side of the elastic ring is sleeved with a rubber sealing air bag, and the inner part of the oil pipe short section is fixedly sleeved with five descaling mechanisms distributed at equal intervals.
Preferably, the extrusion mechanism includes the stripper bar, the stripper bar activity is cup jointed on the pipeline wall of oil pipe nipple joint, the one end of stripper bar extends to the outside of oil pipe nipple joint and is the inclined plane form, the other end swing joint of stripper bar has the transmission pole, and the one end of transmission pole and stripper bar contact sets up to the inclined plane, the inside at oil pipe nipple joint pipeline wall is cup jointed in the transmission pole activity, the other end swing joint of transmission pole has the push rod, push rod movable mounting is in the inside of oil pipe nipple joint pipeline wall, and the bottom of push rod sets up to the inclined plane, the quantity of stripper bar, transmission pole and push rod is the same.
Preferably, inflation supporting mechanism includes the expansion ring, expansion ring movable mounting is inside the pipeline wall of oil pipe nipple joint, the inboard one end swing joint of one end of expansion ring and push rod, and the outside of expansion ring and the inboard swing joint of rubber seal ring, the quantity of expansion ring is a plurality of, a plurality of connect through its inside activity cup jointed a plurality of connecting strip between the expansion ring, a plurality of fixedly connected with extension spring between the connecting strip.
Preferably, a channel for movement of the extrusion rod, the transmission rod and the push rod is formed in the pipeline wall of the oil pipe nipple, an annular groove for movement of the expansion ring is formed in the pipeline wall of the oil pipe nipple and is located on the inner side of the rubber sealing ring, the annular groove is communicated with the channel, and an annular clamping groove is formed in the inner wall of the petroleum pipeline.
Preferably, one end of the adjusting spiral ring, which is far away from the limiting ring, is provided with an inward inclined surface, the inclined surface on the adjusting spiral ring is movably connected with the bulge on the oil pipe nipple, and the inclined surface on the adjusting spiral ring is matched with one end of the extrusion rod, which is in an inclined surface shape.
Preferably, the outside of rubber seal ring flushes with the outside of oil pipe nipple joint, the cross-section of rubber seal ring is the slice and has elasticity, the outside of rubber seal ring and the inside swing joint of ring groove on the oil pipe nipple joint.
Preferably, one end of the elastic ring is connected with the outer wall of the oil pipe nipple in a gentle arc manner, the other end of the elastic ring is tilted, and a cavity is formed between the elastic ring and the oil pipe nipple.
Preferably, the rubber sealing air bag is placed in the chamber, one end of the rubber sealing air bag, close to the adjusting spiral ring, is communicated with the outside and can extend to the outside to be in contact with the inner wall of the petroleum pipeline.
Preferably, the descaling mechanism is annular, the inner side of the descaling mechanism is in a bell mouth shape, and a spiral guide groove is formed in the inner side of the bell mouth shape of the descaling mechanism.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the elastic ring and the rubber sealing air bag are arranged on the oil pipe nipple, when the petroleum pipeline is installed on the oil pipe nipple in a threaded manner, the elastic ring is extruded by the petroleum pipeline, the rubber sealing air bag is extruded out of the cavity by the elastic ring to be in close contact with the inner wall of the petroleum pipeline, the sealing property of the joint of the oil pipe nipple and the petroleum pipeline is increased, and meanwhile, the expansion supporting mechanism expands outwards to push the rubber sealing ring to enter the annular clamping groove on the petroleum pipeline by the aid of the matching use among the adjusting spiral ring, the extruding mechanism and the expansion supporting mechanism, so that the joint of the oil pipe nipple and the petroleum pipeline is further sealed, and the sealing property of the joint of the oil field double-end oil pipe nipple and the oil pipe is improved.
2. According to the oil pipe nipple joint, the five descaling mechanisms which are distributed equidistantly are arranged in the oil pipe nipple joint, the spiral guide groove is formed in the descaling mechanisms, so that the spiral crude oil water flow is formed when crude oil passes through the spiral guide groove to wash the inner wall of the oil pipe nipple joint, scaling of the inner wall of the oil pipe nipple joint is avoided, and meanwhile, when the expansion supporting mechanism is used for pushing the rubber sealing ring into the annular clamping groove, the expansion supporting mechanism is in clamping connection with the annular clamping groove, the connection stability of the oil pipe nipple joint and a petroleum pipeline is improved, and therefore the practicability of the double-end oil pipe nipple joint for the oil field is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the present invention at point A;
FIG. 3 is a side view of the structural expansion support mechanism of the present invention;
FIG. 4 is an enlarged view of the elastic ring of the present invention in an initial state;
FIG. 5 is a schematic side view of a descaling mechanism according to the present invention.
In the figure: 1. an oil pipe nipple; 2. a petroleum pipeline; 3. (ii) modulating a spiro ring; 4. a limiting ring; 5. an extrusion mechanism; 51. an extrusion stem; 52. a transmission rod; 53. a push rod; 6. an expansion support mechanism; 61. an expansion ring; 62. a connecting strip; 63. a tension spring; 7. a rubber seal ring; 8. an elastic ring; 9. a rubber sealing air bag; 10. a descaling mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a dual-head oil pipe nipple for oil field comprises an oil pipe nipple 1, wherein petroleum pipelines 2 are respectively sleeved on the outer portions of two ends of the oil pipe nipple 1 through threads, adjusting spiral rings 3 are respectively sleeved on two sides of the middle portion of the outer wall of the oil pipe nipple 1 through threads, limiting rings 4 located on the opposite sides of the two adjusting spiral rings 3 are respectively fixedly sleeved on two sides of the middle portion of the outer wall of the oil pipe nipple 1, the limiting rings 4 are movably connected with the adjusting spiral rings 3, extrusion mechanisms 5 are movably sleeved inside the pipeline walls of two ends of the oil pipe nipple 1, one end of each extrusion mechanism 5 is movably connected with one side of each adjusting spiral ring 3, the other end of each extrusion mechanism 5 is movably connected with an expansion support mechanism 6, each expansion support mechanism 6 is movably sleeved inside the pipeline wall of the oil pipe nipple 1, a rubber seal ring 7 located on the outer side of each expansion support mechanism 6 is fixedly sleeved on the outer wall of the oil pipe nipple, the inner side of the elastic ring 8 is sleeved with a rubber sealing air bag 9, and the inside of the oil pipe nipple 1 is fixedly sleeved with five descaling mechanisms 10 which are distributed at equal intervals.
As shown in fig. 1-3, the extrusion mechanism 5 includes an extrusion rod 51, the extrusion rod 51 is movably sleeved on the pipe wall of the oil pipe nipple 1, one end of the extrusion rod 51 extends to the outside of the oil pipe nipple 1 and is in an inclined plane shape, the other end of the extrusion rod 51 is movably connected with a transmission rod 52, one end of the transmission rod 52 contacting with the extrusion rod 51 is set to be an inclined plane, the transmission rod 52 is movably sleeved inside the pipe wall of the oil pipe nipple 1, the other end of the transmission rod 52 is movably connected with a push rod 53, the push rod 53 is movably installed inside the pipe wall of the oil pipe nipple 1, the bottom of the push rod 53 is set to be an inclined plane, the extrusion rod 51, the transmission rod 52 and the push rod 53 are in the same number, by utilizing the matching of the adjusting spiral ring 3 and the extrusion mechanism 5, the state of the expanding support mechanism 6 is conveniently controlled, so that the expanding support mechanism 6 expands to extrude the rubber, the extrusion rod 51 extends out of the pipeline wall of the oil pipe nipple 1, and the contact of the extending end of the extrusion rod 51 and the adjusting spiral ring 3 still exists, so that the extrusion rod 51 is prevented from being separated from the oil pipe nipple 1, and the stability of the double-end oil pipe nipple structure for the oil field is improved.
Wherein, as shown in fig. 3, the expansion supporting mechanism 6 includes an expansion ring 61, the expansion ring 61 is movably installed inside the pipeline wall of the oil pipe nipple 1, the inner side of the expansion ring 61 is movably connected with one end of the push rod 53, and the outer side of the expansion ring 61 is movably connected with the inner side of the rubber sealing ring 7, the number of the expansion rings 61 is several, several connection strips 62 which are movably sleeved inside the expansion rings 61 are connected between the several expansion rings 61, a tension spring 63 is fixedly connected between the several connection strips 62, the expansion supporting mechanism 6 is matched with the adjusting spiral ring 3 and the extrusion mechanism 5, so that the expansion rings 61 are expanded outwards, the expansion rings 61 after being expanded push the rubber sealing ring 7 to enter the annular clamping groove, and the sealing performance and the stability of the connection between the oil pipe nipple 1 and the oil pipeline 2 are increased.
As shown in fig. 1-2 and fig. 4, a channel for movement of the extrusion rod 51, the transmission rod 52 and the push rod 53 is provided on the pipe wall of the oil pipe nipple 1, an annular groove for movement of the expansion ring 61 is provided on the pipe wall of the oil pipe nipple 1, the annular groove is located inside the rubber sealing ring 7 and is communicated with the channel, transmission of the internal extrusion rod 51, the transmission rod 52 and the push rod 53 is facilitated, the expansion ring 61 expands outwards to push the rubber sealing ring 7, an annular clamping groove is provided on the inner wall of the petroleum pipeline 2, and the annular clamping groove is convenient to use in cooperation with the expansion ring 61 and the rubber sealing ring 7, so that the sealing performance and stability of the oil pipe nipple 1 and the petroleum pipeline 2 are improved.
As shown in fig. 1, one end of the adjusting spiral ring 3, which is far away from the limit ring 4, is provided with an inward inclined surface, the inclined surface on the adjusting spiral ring 3 is movably connected with the protrusion on the oil pipe nipple 1, and the inclined surface on the adjusting spiral ring 3 is matched with the inclined-surface-shaped end on the extrusion rod 51, so that the extrusion rod 51 is pushed to move conveniently, and the stability of the extrusion rod 51 during movement is improved.
Wherein, as figure 1 and figure 4, the outside of rubber seal ring 7 flushes with the outside of oil pipe nipple joint 1, avoid rubber seal ring 7 to obstruct being connected of oil pipe nipple joint 1 and petroleum pipeline 2, the cross-section of rubber seal ring 7 is the slice and has elasticity, guaranteed that rubber seal ring 7 can enter into ring groove and resume initial form, the inside swing joint of ring groove on the outside of rubber seal ring 7 and the oil pipe nipple joint 1, be convenient for improve the leakproofness when oil pipe nipple joint 1 is connected with petroleum pipeline 2.
Wherein, as figure 1 and figure 4, the one end of elastic ring 8 is connected with the gentle radian of outer wall of oil pipe nipple 1, guaranteed that threaded connection between oil pipe nipple 1 and the petroleum pipeline 2 normally goes on, the other end perk of elastic ring 8, the inner wall of the petroleum pipeline 2 of being convenient for carries out certain extrusion deformation to elastic ring 8, elastic ring 8 after guaranteeing extrusion deformation can extrude rubber seal gasbag 9, make the one end of rubber seal gasbag 9 can carry out in close contact with the inner wall of petroleum pipeline 2, form a cavity between elastic ring 8 and the oil pipe nipple 1.
As shown in fig. 1 and 4, the rubber sealing air bag 9 is placed inside the chamber, one end of the rubber sealing air bag 9, which is close to the adjusting spiral ring 3, is communicated with the outside and can extend to the outside to be in contact with the inner wall of the petroleum pipeline 2, and the rubber sealing air bag 9 has certain elasticity, so that the rubber sealing air bag 9 can automatically retract into the chamber after the extrusion force of the elastic ring 8 is removed.
Wherein, as shown in fig. 1 and 5, the shape of the descaling mechanism 10 is annular, and the inside of the descaling mechanism 10 is bell mouth-shaped, and the spiral diversion trench is opened on the inside of the descaling mechanism 10 that is bell mouth-shaped, and the spiral diversion trench is utilized, so that crude oil forms a spiral crude oil water flow when passing through the spiral diversion trench, and the inner wall of the oil pipe nipple 1 is automatically flushed, and the inner wall of the oil pipe nipple 1 is prevented from scaling.
The working principle is as follows:
when assembling: firstly, the two ends of an oil pipe nipple 1 are respectively in threaded connection with two oil pipelines 2, as shown in figure 1, the left end of the oil pipe nipple 1 is connected with the oil pipelines 2 in the oil inlet direction of crude oil, the inner wall of the oil pipeline 2 extrudes an elastic ring 8 in the connection process of the oil pipe nipple 1 and the oil pipelines 2, the elastic ring 8 extrudes a rubber sealing air bag 9, one end of the rubber sealing air bag 9 extends out of a cavity and is contacted with the inner wall of the oil pipelines 2, when the end of the oil pipeline 2 is contacted with a bulge on the oil pipe nipple 1, the rubber sealing air bag 9 is contacted with the inner wall of the oil pipelines 2 most tightly, then the adjusting spiral ring 3 is rotated until the inclined surface of the adjusting spiral ring 3 is contacted with the bulge on the oil pipe nipple 1, the inclined surface of the adjusting spiral ring 3 extrudes an extrusion rod 51 to move downwards, the extrusion rod 51 pushes a transmission rod 52 to move, the push rod 53 pushes the expansion ring 61 to move outwards, and the expansion ring 61 pushes the rubber sealing ring 7 to enter an annular clamping groove in the petroleum pipeline 2 for clamping and sealing;
when in use: crude oil is introduced from the left end of the oil pipe nipple 1, the crude oil forms a spiral crude oil water flow when passing through the descaling mechanism 10, and the spiral crude oil water flow automatically washes the inner wall of the oil pipe nipple 1;
when the disassembly is carried out: firstly, the adjusting spiral ring 3 is rotated, so that the adjusting spiral ring 3 is contacted with the limiting ring 4, the expansion ring 61 is pushed by the reverse thrust of the rubber sealing ring 7 and the restoring force of the tension spring 63 to move the push rod 53, the push rod 53 pushes the transmission rod 52 to move, the transmission rod 52 pushes the extrusion rod 51 to move so as to restore the initial state, meanwhile, the clamping relation between the expansion ring 61 and the rubber sealing ring 7 and the annular clamping groove is removed, then the petroleum pipeline 2 is rotated to separate the petroleum pipeline from the oil pipe nipple 1, at the moment, one end of the elastic ring 8 is automatically tilted, and the rubber sealing air bag 9 is automatically recovered into the cavity, so that the disassembly can.
It is noted that, herein, 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. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an oil field is with double-end oil pipe nipple joint, includes oil pipe nipple joint (1), petroleum pipeline (2), its characterized in that have been cup jointed to the outside equal screw thread in both ends of oil pipe nipple joint (1): the both sides at oil pipe nipple joint (1) outer wall middle part have been cup jointed to screw respectively and have been adjusted spiral ring (3), the both sides at oil pipe nipple joint (1) outer wall middle part are fixed respectively to be cup jointed and are located two spacing rings (4) of adjusting the relative one side of spiral ring (3), and spacing ring (4) and regulation spiral ring (3) swing joint, extrusion mechanism (5) have been cup jointed in the inside activity of pipeline wall at oil pipe nipple joint (1) both ends, one end of extrusion mechanism (5) and one side swing joint of adjusting spiral ring (3), the other end swing joint of extrusion mechanism (5) has inflation supporting mechanism (6), inflation supporting mechanism (6) activity is cup jointed in the inside of oil pipe nipple joint (1) pipeline wall, fixed the rubber seal ring (7) that are located the inflation supporting mechanism (6) outside of cup jointing on the outer wall of oil pipe nipple joint (1), the outer wall of oil pipe nipple joint (1) is fixed to be cup jointed the elastic ring that is located the protruding 8) The inner side of the elastic ring (8) is sleeved with a rubber sealing air bag (9), and the inner part of the oil pipe nipple (1) is fixedly sleeved with five descaling mechanisms (10) which are distributed at equal intervals.
2. The oilfield double-ended tubing sub of claim 1, wherein: extrusion mechanism (5) are including extrusion stem (51), extrusion stem (51) activity cup joints on the pipeline wall of oil pipe nipple joint (1), the one end of extrusion stem (51) extends to the outside of oil pipe nipple joint (1) and is the inclined plane form, the other end swing joint of extrusion stem (51) has transmission pole (52), and the one end of transmission pole (52) and extrusion stem (51) contact sets up to the inclined plane, transmission pole (52) activity cup joints the inside at oil pipe nipple joint (1) pipeline wall, the other end swing joint of transmission pole (52) has push rod (53), push rod (53) movable mounting is in the inside of oil pipe nipple joint (1) pipeline wall, and the bottom of push rod (53) sets up to the inclined plane, the quantity of extrusion stem (51), transmission pole (52) and push rod (53) is the same.
3. The oilfield double-ended tubing sub of claim 1, wherein: inflation supporting mechanism (6) are including inflation ring (61), inflation ring (61) movable mounting is inside the pipeline wall of oil pipe nipple joint (1), the inboard of inflation ring (61) and the one end swing joint of push rod (53), and the inboard swing joint of the outside of inflation ring (61) and rubber seal ring (7), the quantity of inflation ring (61) is a plurality of, a plurality of connect a plurality of connecting strip (62) through its inside activity cup joints between inflation ring (61), a plurality of fixedly connected with extension spring (63) between connecting strip (62).
4. The oilfield double-ended tubing sub of claim 1, wherein: the pipeline wall of the oil pipe nipple (1) is provided with a channel for movement of an extrusion rod (51), a transmission rod (52) and a push rod (53), the pipeline wall of the oil pipe nipple (1) is provided with an annular groove which is located on the inner side of a rubber sealing ring (7) and used for movement of an expansion ring (61), the annular groove is communicated with the channel, and the inner wall of the petroleum pipeline (2) is provided with an annular clamping groove.
5. The oilfield double-ended tubing sub of claim 1, wherein: one end, far away from the limiting ring (4), of the adjusting spiral ring (3) is provided with an inward inclined surface, the inclined surface on the adjusting spiral ring (3) is movably connected with the protrusion on the oil pipe nipple (1), and the inclined surface on the adjusting spiral ring (3) is matched with one end, in the shape of an upper inclined surface, of the extrusion rod (51).
6. The oilfield double-ended tubing sub of claim 1, wherein: the outside of rubber seal ring (7) flushes with the outside of oil pipe nipple joint (1), the cross-section of rubber seal ring (7) is the slice and has elasticity, the outside of rubber seal ring (7) and the inside swing joint of ring groove on oil pipe nipple joint (1).
7. The oilfield double-ended tubing sub of claim 1, wherein: one end of the elastic ring (8) is connected with the outer wall of the oil pipe nipple (1) in a gentle radian mode, the other end of the elastic ring (8) is tilted, and a cavity is formed between the elastic ring (8) and the oil pipe nipple (1).
8. The oilfield double-ended tubing sub of claim 1, wherein: the rubber sealing air bag (9) is placed in the chamber, and one end, close to the adjusting spiral ring (3), of the rubber sealing air bag (9) is communicated with the outside and can extend to the outside to be in contact with the inner wall of the petroleum pipeline (2).
9. The oilfield double-ended tubing sub of claim 1, wherein: the descaling mechanism (10) is annular, the inner side of the descaling mechanism (10) is in a bell mouth shape, and the inner side of the descaling mechanism (10) in the bell mouth shape is provided with a spiral diversion trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980259.2A CN112145829B (en) | 2020-09-17 | 2020-09-17 | Double-end oil pipe nipple for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980259.2A CN112145829B (en) | 2020-09-17 | 2020-09-17 | Double-end oil pipe nipple for oil field |
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| Publication Number | Publication Date |
|---|---|
| CN112145829A true CN112145829A (en) | 2020-12-29 |
| CN112145829B CN112145829B (en) | 2021-06-15 |
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| CN202010980259.2A Active CN112145829B (en) | 2020-09-17 | 2020-09-17 | Double-end oil pipe nipple for oil field |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776899A (en) * | 2022-05-05 | 2022-07-22 | 康文钡 | Mechanical sealing device |
| CN115059667A (en) * | 2022-08-19 | 2022-09-16 | 鄄城鑫磊交通工程材料有限公司 | A connection structure for sounding pipe |
| CN117780289A (en) * | 2024-02-27 | 2024-03-29 | 西派集团有限公司 | High sulfur-resistant combined type metal seal tubing head |
| CN117846513A (en) * | 2024-03-06 | 2024-04-09 | 胜利油田胜机石油装备有限公司 | Airtight type electroplating anti-corrosion heat-insulation oil pipe |
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| CN205101773U (en) * | 2015-10-15 | 2016-03-23 | 徐州国奥新型建材有限公司 | Two hardness water conservancy diversion water pipes |
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Cited By (6)
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| CN114776899A (en) * | 2022-05-05 | 2022-07-22 | 康文钡 | Mechanical sealing device |
| CN115059667A (en) * | 2022-08-19 | 2022-09-16 | 鄄城鑫磊交通工程材料有限公司 | A connection structure for sounding pipe |
| CN117780289A (en) * | 2024-02-27 | 2024-03-29 | 西派集团有限公司 | High sulfur-resistant combined type metal seal tubing head |
| CN117780289B (en) * | 2024-02-27 | 2024-05-03 | 西派集团有限公司 | High sulfur-resistant combined type metal seal tubing head |
| CN117846513A (en) * | 2024-03-06 | 2024-04-09 | 胜利油田胜机石油装备有限公司 | Airtight type electroplating anti-corrosion heat-insulation oil pipe |
| CN117846513B (en) * | 2024-03-06 | 2024-05-03 | 胜利油田胜机石油装备有限公司 | Airtight type electroplating anti-corrosion heat-insulation oil pipe |
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| CN112145829B (en) | 2021-06-15 |
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Effective date of registration: 20210531 Address after: 163000 Guangming South Street 23-2, Guangming Industrial Park, Longfeng District, Daqing City, Heilongjiang Province Applicant after: DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. Address before: 163000 room 402, door 6, no.3-1, Wanbao community, heat source street, Sartu District, Daqing City, Heilongjiang Province Applicant before: Xi He |
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