CN222333755U - A new downhole oil pipe heating device - Google Patents
A new downhole oil pipe heating device Download PDFInfo
- Publication number
- CN222333755U CN222333755U CN202421042418.4U CN202421042418U CN222333755U CN 222333755 U CN222333755 U CN 222333755U CN 202421042418 U CN202421042418 U CN 202421042418U CN 222333755 U CN222333755 U CN 222333755U
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- Prior art keywords
- oil pipe
- sleeve
- heating device
- limiting
- holes
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 53
- 230000000670 limiting effect Effects 0.000 claims abstract description 38
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 59
- 238000012423 maintenance Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The utility model relates to the technical field of oil extraction equipment, in particular to a novel underground oil pipe heating device, which comprises a sleeve sleeved on the outer side of an oil pipe, wherein a heating coil is arranged in the sleeve, the heating coil is sleeved on the outer side of the oil pipe, the length of the sleeve is the same as that of the oil pipe, one end of the sleeve is provided with internal threads, the other end of the sleeve is provided with external threads, the internal threads and the external threads are mutually matched, the side wall of the sleeve is provided with limiting holes along the direction vertical to an axis, the limiting holes are axially and uniformly distributed, the limiting holes are internally provided with limiting pieces, and the limiting pieces penetrate into the limiting holes and can be blocked at the joint of the oil pipe and an oil pipe coupling.
Description
Technical Field
The utility model relates to the technical field of oil extraction equipment, in particular to a novel underground oil pipe heating device.
Background
Petroleum is a fluid mineral deeply buried underground, and in the actual exploitation process of a petroleum well of a special petroleum reservoir such as thickened oil, high-freezing oil, condensate gas and the like, the phenomenon that a sucker rod is blocked, broken and separated and the like cannot normally produce due to heavy oil, wax precipitation and overload often occurs, so that the yield and recovery ratio are seriously affected, the fluidity of crude oil can be improved by heating the petroleum pipe, and the effect of increasing the yield is achieved.
The oil pipe is divided into an aboveground oil pipe and an underground oil pipe, the heating of the underground oil pipe mainly winds the heating wire on the oil pipe, crude oil in the oil pipe is indirectly heated through the heating oil pipe, the heating wire is heated in order to ensure that the heating wire is not corroded and aged underground, the outer side of the heating wire is required to be wrapped with a layer of protective shell, the heating wire is sealed in the protective shell, the protective shell is welded and sealed with the oil pipe in order to improve the protective capability of the protective shell on the heating wire, but the protective shell is inconvenient to detach, and when the heating wire is damaged and needs to be maintained, maintenance personnel need to spend a large amount of time to detach the oil pipe, so that the maintenance efficiency of the heating wire is greatly reduced.
Therefore, it is necessary to provide a novel downhole oil pipe heating device, so as to enhance protection of the heating wire, facilitate disassembly and replacement of the heating wire and the protective shell, and improve maintenance efficiency of the heating wire.
Disclosure of utility model
The utility model aims to solve the problem that the maintenance efficiency is low because the electric heating wire of the existing underground oil pipe is not detached and replaced, and provides a novel underground oil pipe heating device.
The technical scheme of the utility model is as follows:
The utility model provides a novel oil pipe in pit heats device, establishes the sleeve in the oil pipe outside including the cover, is equipped with heating coil in the sleeve, and the heating coil snare is established in the oil pipe outside, sleeve length is the same with oil pipe length, telescopic one end is provided with the internal thread, telescopic other end is provided with the external screw thread, internal thread and external screw thread match each other, and spacing hole has been seted up along the direction of perpendicular to axis to the sleeve lateral wall, spacing hole axial evenly distributed, be equipped with the locating part in the spacing hole, the locating part is gone deep into in the spacing hole and can keep off in the junction of oil pipe and oil pipe coupling.
Further, the sleeve is internally and fixedly connected with a fixing frame, the fixing frame is axially arranged along the oil pipe, a fixing hole is formed in the fixing frame, and the heating coil is fixed in the fixing hole.
Further, locking holes are formed in the periphery of the fixing holes, the heating coils are also provided with locking holes, locking pieces are arranged in the locking holes, and the heating coils are fixed in the fixing holes by the locking pieces.
Further, four limiting holes are respectively formed in two ends of the sleeve, and a limiting piece is correspondingly arranged in each limiting hole.
Further, a fixing groove for accommodating the cable is fixedly connected to the inner wall of the sleeve, and the fixing groove is arranged along the axial direction of the sleeve.
Furthermore, the two sleeves can be in threaded connection through the internal threads and the external threads on the two sleeves, and the coupling of the oil pipe is positioned at one end of the sleeve where the internal threads are positioned.
Further, when the two sleeves are in threaded connection, two oil pipes in the two sleeves can be connected through a coupling.
Further, the diameter of one end of the sleeve where the internal thread is located is larger than the diameter of the tubing coupling.
Further, threads are arranged in the limiting holes, and the limiting parts are screws.
According to the novel underground oil pipe heating device, the lengths of the sleeve and the oil pipe are the same, when the oil pipes are in butt joint through the coupling on the sleeve, the sleeve on the outer side of the oil pipe can be in butt joint through the internal threads and the external threads on the sleeve, so that the oil pipe can be wrapped in the sleeve, the protection of the oil pipe is realized, the limiting hole can accommodate the limiting piece, the limiting piece can be blocked at the joint of the oil pipe and the oil pipe coupling when being inserted into the limiting hole, the condition that the oil pipe moves axially in the vertical state is prevented, the limiting hole and the limiting piece are arranged at the two ends of the sleeve, and therefore, the two ends of the sleeve have the limiting effect, and compared with the prior art, the limiting effect is guaranteed.
Drawings
FIG. 1 is a perspective view of a sleeve according to the present utility model;
FIG. 2 is a front view of the sleeve of the present utility model;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present utility model;
FIG. 4 is a perspective view of a heating coil of the present utility model;
FIG. 5 is a perspective view of the holder of the present utility model;
FIG. 6 is a perspective view of a combination of a fixing frame and a heating coil according to the present utility model;
FIG. 7 is a sleeve assembly view of the present utility model;
FIG. 8 is a reference diagram of the oil pipe structure of the present utility model;
FIG. 9 is a cross-sectional view taken at B-B of FIG. 7 in accordance with the present utility model.
The device comprises a reference numeral 1, a sleeve, 2, a heating coil, 3, a fixing groove, 4, a limiting hole, 5, an oil pipe, 6, a fixing frame, 7, a fixing hole, 8, a locking hole, 9, an internal thread, 10, an external thread, 11, a limiting piece, 12 and a coupling.
Detailed Description
In order to make the technical means, technical features, objects and technical effects of the present utility model easy to understand, the present utility model will be further described with reference to the specific drawings.
Embodiment one:
As shown in fig. 1 and 2, this embodiment provides a novel downhole oil pipe heating device, including the sleeve 1 of cover at the oil pipe 5 outside, be equipped with heating coil 2 in the sleeve 1, heating coil 2 cover is established in the oil pipe 5 outside, sleeve 1 length is the same with oil pipe 5 length, sleeve 1's one end is provided with internal thread 9, sleeve 1's the other end is provided with external screw thread 10, internal thread 9 and external screw thread 10 match each other, sleeve 1 lateral wall has seted up spacing hole 4 along the direction of perpendicular to axis, spacing hole 4 axial evenly distributed, be equipped with locating part 11 in the spacing hole 4, locating part 11 is in depth into spacing hole 4 and can keep off in the junction of oil pipe 5 and oil pipe 5 coupling 12.
Preferably, as shown in fig. 4 and 5, a fixing frame 6 is screwed or welded in the sleeve 1, the fixing frame 6 is axially arranged along the oil pipe 5, a fixing hole 7 is formed in the fixing frame 6, and the heating coil 2 is fixed in the fixing hole 7.
Preferably, the fixing holes 7 are provided with locking holes 8 around, as shown in fig. 6, the heating coil 2 is also provided with locking holes 8, locking pieces are arranged in the locking holes 8, the heating coil 2 is fixed in the fixing holes 7 by the locking pieces, preferably, each fixing frame 6 is provided with four locking holes 8, and the locking pieces are axially distributed around the fixing holes 7, preferably, the locking pieces are screws.
Preferably, four limiting holes 4 are respectively formed in two ends of the sleeve 1, a limiting piece 11 is correspondingly arranged in each limiting hole 4, and the limiting holes 4 are uniformly distributed in the axial direction.
Preferably, as shown in fig. 3, a fixing groove 3 for accommodating a cable is welded or screwed to the inner wall of the sleeve 1, and the fixing groove 3 is disposed along the axial direction of the sleeve 1.
Preferably, as shown in fig. 7, the two sleeves 1 can be in threaded connection through the internal threads 9 and the external threads 10 on the two sleeves, and the coupling 12 of the oil pipe 5 is positioned at one end of the sleeve 1 where the internal threads 9 are positioned.
Preferably, when the two sleeves 1 are screwed together, the two oil pipes 5 therein can also be connected by the coupling 12.
Preferably, the diameter of the end of the sleeve 1 where the internal thread 9 is located is larger than the diameter of the coupling 12 of the tubing 5.
Preferably, threads are arranged in the limiting holes 4, and the limiting pieces 11 are screws.
During operation, as shown in fig. 8 and 9, the lengths of sleeve 1 and oil pipe 5 are the same, and sleeve 1 and oil pipe 5 are gone up and all are provided with the screw thread, the one end of external screw thread 10 on sleeve 1, oil pipe 5 is also external screw thread 10, sleeve 1 has the one end of internal screw thread 9, be provided with internal screw thread 9 on oil pipe 5 coupling 12, when oil pipe 5 threaded connection, sleeve 1 also carries out threaded connection in step, thereby realize that connection between sleeve 1 and oil pipe 5 go on in step, when the connection between oil pipe 5 through coupling 12 on it, sleeve 1 outside oil pipe 5 also can realize the butt joint through internal screw thread 9 and external screw thread 10 on it, thereby can wrap up oil pipe 5 in sleeve 1, the protection to oil pipe 5 has been realized, spacing hole 4 can hold spacing piece 11, the department of junction at oil pipe 5 and oil pipe 5 coupling 12 when spacing piece 11 inserts spacing hole 4, prevent the condition of oil pipe 5 axial displacement under the state, spacing hole 4 and spacing piece 11 all have the setting at sleeve 1's both ends, therefore sleeve 1's both ends all have spacing effect, guaranteed that spacing heating coil is taken out with traditional in the spacing piece 2, need take out the sleeve 1 when the maintenance is compared with traditional scheme 2, only need take out spacing piece 1, can be removed from the maintenance efficiency when the technical scheme is compared to need of 1, and the maintenance is convenient.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Equivalent changes and modifications of the utility model are intended to fall within the scope of the present utility model.
Claims (9)
1. The novel downhole oil pipe heating device comprises a sleeve (1) sleeved outside an oil pipe (5), wherein a heating coil (2) is arranged in the sleeve (1), the heating coil (2) is sleeved outside the oil pipe (5), and the novel downhole oil pipe heating device is characterized in that the length of the sleeve (1) is identical to that of the oil pipe (5), one end of the sleeve (1) is provided with an internal thread (9), the other end of the sleeve (1) is provided with an external thread (10), the internal thread (9) and the external thread (10) are mutually matched, a limiting hole (4) is formed in the side wall of the sleeve (1) along the direction perpendicular to an axis, the limiting hole (4) is axially and uniformly distributed, a limiting piece (11) is arranged in the limiting hole (4), and the limiting piece (11) penetrates into the limiting hole (4) and can be blocked at the junction of the oil pipe (5) and a coupling (12) of the oil pipe (5).
2. The novel downhole oil pipe heating device according to claim 1, wherein a fixing frame (6) is fixedly connected in the sleeve (1), the fixing frames (6) are axially arranged along the oil pipe (5), fixing holes (7) are formed in the fixing frames (6), and the heating coil (2) is fixed in the fixing holes (7).
3. The novel downhole oil pipe heating device according to claim 2, wherein locking holes (8) are formed in the periphery of the fixing holes (7), the heating coil (2) is also provided with the locking holes (8), locking pieces are arranged in the locking holes (8), and the heating coil (2) is fixed in the fixing holes (7) by the locking pieces.
4. The novel downhole oil pipe heating device according to claim 1 is characterized in that four limiting holes (4) are respectively formed in two ends of the sleeve (1), and a limiting piece (11) is correspondingly arranged in each limiting hole (4).
5. The novel downhole oil pipe heating device according to claim 1, wherein the inner wall of the sleeve (1) is fixedly connected with a fixing groove (3) for accommodating a cable, and the fixing groove (3) is arranged along the axis direction of the sleeve (1).
6. The novel downhole oil pipe heating device according to claim 1 is characterized in that the two sleeves (1) can be in threaded connection through internal threads (9) and external threads (10) on the two sleeves, and a coupling (12) of the oil pipe (5) is positioned at one end of the sleeve (1) where the internal threads (9) are positioned.
7. The novel downhole oil pipe heating device according to claim 6, wherein when the two sleeves (1) are in threaded connection, the two oil pipes (5) in the sleeve can be connected through the coupling (12).
8. The novel downhole oil pipe heating device according to claim 6, wherein the diameter of one end of the sleeve (1) where the internal thread (9) is located is larger than the diameter of the coupling (12) of the oil pipe (5).
9. The novel downhole oil pipe heating device according to claim 1, wherein threads are arranged in the limiting holes (4), and the limiting pieces (11) are screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421042418.4U CN222333755U (en) | 2024-05-14 | 2024-05-14 | A new downhole oil pipe heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421042418.4U CN222333755U (en) | 2024-05-14 | 2024-05-14 | A new downhole oil pipe heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222333755U true CN222333755U (en) | 2025-01-10 |
Family
ID=94146357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421042418.4U Active CN222333755U (en) | 2024-05-14 | 2024-05-14 | A new downhole oil pipe heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222333755U (en) |
-
2024
- 2024-05-14 CN CN202421042418.4U patent/CN222333755U/en active Active
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