CN217761286U - Submersible linear motor for high-temperature heavy oil well and sliding guide sleeve thereof - Google Patents
Submersible linear motor for high-temperature heavy oil well and sliding guide sleeve thereof Download PDFInfo
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- CN217761286U CN217761286U CN202222185116.XU CN202222185116U CN217761286U CN 217761286 U CN217761286 U CN 217761286U CN 202222185116 U CN202222185116 U CN 202222185116U CN 217761286 U CN217761286 U CN 217761286U
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- guide sleeve
- sliding guide
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- seat
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Abstract
The utility model discloses a oily linear electric motor's of high temperature viscous crude oil well sliding guide cover, including the sliding guide cover body, suit in the guide sleeve seat in the sliding guide cover body outside, suit in the guide sleeve retaining ring between guide sleeve seat and sliding guide cover body, the coefficient of thermal expansion of guide sleeve retaining ring is less than the coefficient of thermal expansion of guide sleeve seat and is greater than the coefficient of thermal expansion of sliding guide cover body, and the elastic modulus of guide sleeve retaining ring is less than the elastic modulus of sliding guide cover body and the elastic modulus of guide sleeve seat, is interference fit between guide sleeve seat and the guide sleeve retaining ring and between guide sleeve retaining ring and the sliding guide cover body. The sliding guide sleeve can be suitable for high-temperature thick oil wells, can avoid the sliding guide sleeve from losing fixation and limiting under a high-temperature environment, avoids overlarge internal stress and reduces the risk of fragmentation. The utility model also discloses a submersible linear electric motor of high temperature viscous crude well of including above-mentioned sliding guide bush, its beneficial effect is the same with sliding guide bush's beneficial effect.
Description
Technical Field
The utility model relates to a linear electric motor technical field especially relates to a sliding guide sleeve. Furthermore, the utility model discloses still relate to a submersible linear electric motor of high temperature viscous crude well including above-mentioned sliding guide cover.
Background
The thickened oil is one of important alternative energy sources in the future, and has the characteristics of high viscosity, large reserve and high exploitation difficulty. One current method of production is to inject high temperature and high pressure steam into the well, hold for a period of time, called "stuffy well" to reduce the viscosity of the heavy oil at high temperature, and then produce the heavy oil. The high temperature water vapor temperature is very high, up to 370 ℃, and presents a very great challenge to oil production equipment.
In the prior art, the reciprocating electric submersible pump changes the lifting mode of crude oil production, has the characteristics of simple structure, energy conservation, consumption reduction, convenient operation, online parameter adjustment and the like, and thoroughly solves the problems of the detachment and breakage of a sucker rod and the eccentric wear of a pipe rod which are long-standing troubles for mechanical oil production at home and abroad. The product can replace the original oil extraction mode, and is also very suitable for the exploitation of horizontal wells, directional wells and low-permeability oil-bearing wells. At present, the reciprocating electric submersible pump is widely used in the normal temperature well of each large oil field. However, in the face of heavy oil wells, the reciprocating electric submersible pump still has many technical difficulties.
The power equipment of the reciprocating electric submersible pump is a submersible linear motor, which is a cylindrical linear motor, a rotor is positioned in the center of a cylinder and reciprocates along the axial direction of the cylinder, and a stator is in a ring shape and is sleeved outside the rotor. In order to ensure that the rotor does not wear the stator during movement, the stator is provided with a sliding guide sleeve for limiting the radial direction of the rotor.
In summary, the sliding guide sleeve of the submersible linear motor of the current normal temperature well is generally made of hard alloy and is in small interference fit with the guide sleeve seat, so that fixation is realized. This structure has been used well in the normal temperature well, however, in the high temperature well, there is an unsolvable problem of:
the hard alloy is a brittle material and has very small self-thermal expansion coefficient; the guide sleeve seat is generally made of stainless steel, and the thermal expansion coefficient is large; in a high-temperature well, because the difference between the ambient temperature and the ground temperature is large, if the interference magnitude between the guide sleeve seat and the sliding guide sleeve is small, a large gap exists between the guide sleeve seat and the sliding guide sleeve in the well, the sliding guide sleeve is not fixed, and the radial limiting effect on the rotor is weakened; if the magnitude of interference is big between guide pin bushing seat and the slip guide pin bushing, slip guide pin bushing internal stress is too big, cracked easily.
At present, an electric submersible pump suitable for a high-temperature heavy oil well does not exist.
In summary, how to develop an electric submersible pump suitable for a high-temperature heavy oil well is a problem that needs to be solved urgently by technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sliding guide sleeve which can be suitable for high-temperature thick oil wells, can avoid the sliding guide sleeve from losing the fixing and limiting functions under the high-temperature environment, and avoid overlarge internal stress and reduce the cracking risk; another object of the utility model is to provide an oily linear electric motor of high temperature viscous crude well is dived including above-mentioned sliding guide cover, its beneficial effect is the same with sliding guide cover's beneficial effect.
In order to solve the technical problem, the utility model provides a following technical scheme:
the sliding guide sleeve of the submersible linear motor of the high-temperature heavy oil well comprises a sliding guide sleeve body, a guide sleeve seat sleeved on the outer side of the sliding guide sleeve body, and a guide sleeve retaining ring sleeved between the guide sleeve seat and the sliding guide sleeve body, wherein the thermal expansion coefficient of the guide sleeve retaining ring is smaller than that of the guide sleeve seat and is larger than that of the sliding guide sleeve body, the elastic modulus of the guide sleeve retaining ring is smaller than that of the sliding guide sleeve body and that of the guide sleeve seat, and the guide sleeve seat and the guide sleeve retaining ring as well as the guide sleeve retaining ring and the sliding guide sleeve body are in interference fit.
Optionally, the guide sleeve seat and the guide sleeve guard ring are in large interference fit, and the guide sleeve guard ring and the sliding guide sleeve body are in small interference fit.
Optionally, the guide sleeve guard ring comprises a plurality of layers of guide sleeve sub-guard rings which are in interference fit in sequence.
Optionally, the guide sleeve seat and the sliding guide sleeve body are made of stainless steel and hard alloy respectively, and the guide sleeve retaining ring is made of titanium alloy.
Optionally, a first spigot is arranged at a first end of the guide sleeve seat, the sliding guide sleeve body is flush with a first end face of the guide sleeve guard ring, and the first end faces of the sliding guide sleeve body and the guide sleeve guard ring abut against the first spigot.
Optionally, a second end of the guide sleeve guard ring has a second spigot, and the second end face of the sliding guide sleeve body abuts against the second spigot.
Optionally, a second end of the sliding guide sleeve body has a notch matched with the second spigot, and the second spigot abuts against the notch.
Optionally, the second end surface of the guide sleeve seat, the second end surface of the guide sleeve guard ring, and the second end surface of the sliding guide sleeve body are flush.
The utility model also provides a latent oily linear electric motor of high temperature viscous crude well, including the slip guide pin bushing, the slip guide pin bushing specifically is above-mentioned arbitrary item the slip guide pin bushing.
The utility model provides a sliding guide sleeve, sliding guide sleeve include sliding guide sleeve body, guide sleeve seat, guide sleeve retaining ring, and sliding guide sleeve body is located the inboard, guide sleeve seat suit in the outside of sliding guide sleeve body. The guide sleeve protective ring is sleeved between the guide sleeve seat and the sliding guide sleeve body, and the installation process comprises the steps of firstly sleeving the guide sleeve protective ring on the sliding guide sleeve body and then sleeving the guide sleeve seat on the sliding guide sleeve body.
The thermal expansion coefficient of the guide sleeve protective ring is smaller than that of the guide sleeve seat and larger than that of the sliding guide sleeve body, and the expansion amount of the guide sleeve protective ring is smaller than that of the guide sleeve seat and larger than that of the sliding guide sleeve body.
The guide sleeve guard ring has small elastic modulus and large stress deformation, is clamped between the guide sleeve seat and the sliding guide sleeve body, has small extrusion amount on the guide sleeve seat and the sliding guide sleeve body, and reduces the structural internal stress of the guide sleeve seat and the sliding guide sleeve body.
The guide sleeve seat and the guide sleeve retaining ring and the sliding guide sleeve body are in interference fit, and under a high-temperature environment, enough interference magnitude still exists between the guide sleeve seat and the guide sleeve retaining ring, so that the structure cannot be loosened.
The guide sleeve retaining ring and the magnitude of interference between the sliding guide sleeve bodies are reduced, the sliding guide sleeve bodies are in a critical state of interference, the sliding guide sleeve retaining ring and the sliding guide sleeve bodies are still in relatively fixed connection and cannot be loosened, the internal stress of the sliding guide sleeve bodies is small under a normal temperature environment, and the phenomenon that the internal stress of the sliding guide sleeve bodies is too large and is difficult to crack under the normal temperature can be avoided.
The sliding guide sleeve of the submersible linear motor of the high-temperature heavy oil well can be suitable for the high-temperature heavy oil well, and can ensure that the limiting function and self fixation of the sliding guide sleeve body are not influenced under the high-temperature environment; but also can ensure that the sliding guide sleeve body is not cracked due to overlarge stress under the ground environment.
The utility model also provides a latent oily linear electric motor of high temperature viscous crude well, including the slip guide pin bushing, this slip guide pin bushing specifically is any kind of above-mentioned slip guide pin bushing. Because foretell slide guide bushing has above-mentioned technological effect, the oily linear electric motor of diving of high temperature viscous crude well that has this slide guide bushing also should have corresponding technological effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an assembly structure of a sliding guide sleeve according to an embodiment of the present invention.
The drawings are numbered as follows:
the guide sleeve comprises a guide sleeve seat 1, a guide sleeve guard ring 2, a sliding guide sleeve body 3, a first spigot 11 and a second spigot 21.
Detailed Description
The core of the utility model is to provide a sliding guide sleeve which can be applied to high-temperature heavy oil wells, can avoid the sliding guide sleeve from losing the fixing and limiting functions under the high-temperature environment, and avoid the overlarge internal stress of the sliding guide sleeve and reduce the fracture risk; the utility model discloses an another core provides the oily linear electric motor of diving of high temperature viscous crude well including above-mentioned sliding guide bush, and its beneficial effect is the same with sliding guide bush's beneficial effect.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic view of an assembly structure of a sliding guide sleeve according to an embodiment of the present invention.
In a specific embodiment, the utility model provides a oily linear electric motor's of high temperature viscous crude well sliding guide cover, including sliding guide cover body 3, suit in the guide sleeve seat 1, the suit in the sliding guide cover body 3 outside the guide sleeve seat 1 with guide sleeve grommet 2 between the sliding guide cover body 3, the coefficient of thermal expansion of guide sleeve grommet 2 is less than guide sleeve seat 1's coefficient of thermal expansion just is greater than sliding guide sleeve body 3's coefficient of thermal expansion, the elastic modulus of guide sleeve grommet 2 is less than sliding guide sleeve body 3's elastic modulus and guide sleeve seat 1's elastic modulus, guide sleeve seat 1 with between the guide sleeve grommet 2 and guide sleeve grommet 2 with be interference fit between the sliding guide sleeve body 3.
In the structure, the sliding guide sleeve comprises a sliding guide sleeve body 3, a guide sleeve seat 1 and a guide sleeve guard ring 2, wherein the sliding guide sleeve body 3 is positioned on the inner side, and the guide sleeve seat 1 is sleeved on the outer side of the sliding guide sleeve body 3. The guide sleeve protection ring 2 is sleeved between the guide sleeve seat 1 and the sliding guide sleeve body 3, and the installation process is to firstly coat the guide sleeve protection ring 2 on the sliding guide sleeve body 3 and then coat the guide sleeve seat 1 on the guide sleeve body 3.
It should be noted that the thermal expansion coefficient of the guide sleeve guard ring 2 is smaller than the thermal expansion coefficient of the guide sleeve holder 1 and larger than the thermal expansion coefficient of the sliding guide sleeve body 3, and the expansion amount of the guide sleeve guard ring 2 is smaller than the expansion amount of the guide sleeve holder 1 and larger than the expansion amount of the sliding guide sleeve body 3.
The elastic modulus of the guide sleeve guard ring 2 is smaller than that of the sliding guide sleeve body 3 and that of the guide sleeve seat 1, namely the elastic modulus of the guide sleeve guard ring 2 is small, the stress deformation is large, the guide sleeve seat is clamped between the guide sleeve seat 1 and the sliding guide sleeve body 3, the extrusion amount of the guide sleeve seat 1 and the sliding guide sleeve body 3 is small, and the structural internal stress of the guide sleeve seat 1 and the sliding guide sleeve body is reduced.
The guide sleeve seat 1 and the guide sleeve guard ring 2 and the sliding guide sleeve body 3 are in interference fit, and under a high-temperature environment, the guide sleeve seat 1 and the guide sleeve guard ring 2 still have enough interference magnitude, so that the structure cannot be loosened.
The magnitude of interference between the guide sleeve retaining ring 2 and the sliding guide sleeve body 3 is reduced, the guide sleeve retaining ring is in a critical state of interference, the guide sleeve retaining ring is still in relatively fixed connection and cannot be loosened, the internal stress of the sliding guide sleeve body 3 is small under a normal temperature environment, and the phenomenon that the internal stress of the sliding guide sleeve body 3 is too large at the normal temperature and is difficult to crack can be avoided.
The sliding guide sleeve of the submersible linear motor of the high-temperature heavy oil well can be suitable for the high-temperature heavy oil well, and can ensure that the limiting function and self-fixation of the sliding guide sleeve body are not influenced in a high-temperature environment; but also can ensure that the sliding guide sleeve body is not cracked due to overlarge stress under the ground environment.
The sliding guide sleeve is only a preferred scheme, is particularly not limited to the preferred scheme, and can be adjusted in a targeted manner according to actual needs on the basis, so that different implementation modes are obtained, the guide sleeve seat 1 and the guide sleeve guard ring 2 are in large interference fit, and the guide sleeve seat and the guide sleeve guard ring are ensured to have enough interference under a high-temperature environment, and the structure cannot be loosened.
Guide pin bushing retaining ring 2 with for little interference fit between the slip guide pin bushing body 3, the magnitude of interference is less, and both are in the critical state of interference under the high temperature environment, avoid under the normal atmospheric temperature that the internal stress of slip guide pin bushing body 3 is too big.
Further optimize above-mentioned technical scheme, technical personnel in the field can carry out a plurality of changes to above-mentioned specific implementation according to the difference of specific occasion, and the number of piles of guide pin bushing retaining ring 2 can be one deck, two-layer or multilayer, for example for 3 layers, this moment guide pin bushing retaining ring 2 includes three-layer guide pin bushing branch retaining ring of interference fit in proper order, through guide pin bushing branch retaining ring adjust with guide sleeve seat 1 and the sliding guide pin bushing body 3 between the cooperation condition, it is more convenient to use. The thermal expansion coefficient and the elastic modulus of the guide sleeve sub-protecting rings are not limited, interference magnitude still exists between the guide sleeve sub-protecting rings in a high-temperature environment, and the structure cannot be loosened.
In an embodiment, the guide sleeve holder 1 and the sliding guide sleeve body 3 may be made of normal temperature well guide sleeve holder and sliding guide sleeve body 3, and the cost is low if the guide sleeve holder 1 and the sliding guide sleeve body 3 are made of stainless steel and hard alloy, respectively.
The guide sleeve protective ring 2 is made of titanium alloy, has small modulus, has a thermal expansion coefficient smaller than that of the guide sleeve seat 1 and larger than that of the sliding guide sleeve body 3, is suitable for being matched with stainless steel and hard alloy, and is flexible and convenient to use.
In another more reliable embodiment, on the basis of any one of the above embodiments, the first end of the guide sleeve holder 1 has a first spigot 11, the first end surfaces of the sliding guide sleeve body 3 and the guide sleeve guard ring 2 are flush, the first end surfaces of the sliding guide sleeve body 3 and the guide sleeve guard ring 2 abut against the first spigot 11, the first spigot 11 limits the first end surfaces of the sliding guide sleeve body 3 and the guide sleeve guard ring 2, the limit value sliding guide sleeve body 3 cannot axially displace towards one side of the first end surface, and the limit value sliding guide sleeve body 3 can be prevented from losing the limit value on one side of the sliding guide sleeve body 3.
On the basis of the above embodiments, the guide sleeve guard ring 2 is provided with a second spigot 21 at a second end of the guide sleeve guard ring 2, which is opposite to the first spigot 11, the second end surface of the sliding guide sleeve body 3 abuts against the second spigot 21, the second spigot 21 limits the second end surface of the sliding guide sleeve body 3, the limit value sliding guide sleeve body 3 cannot axially displace towards one side of the second end surface, and the other side of the sliding guide sleeve body 3 can be prevented from losing the limit.
Optionally, the first spigot 11 and the second spigot 21 cooperate to limit the sliding guide sleeve body 3 from axial displacement.
On the basis of the above embodiments, the second end of the sliding guide sleeve body 3 has a notch matching with the second spigot 21, the second spigot 21 abuts against the notch, the positions of the second spigot 21 and the sliding guide sleeve body 3 are more accurate, and the second spigot 21 has a simple structure and is easy to process.
On the basis of each specific embodiment, the second end surface of the guide sleeve seat 1, the second end surface of the guide sleeve guard ring 2 and the second end surface of the sliding guide sleeve body 3 are parallel and level, so that the structure integrity is more complete, smooth and attractive, the hook is not easy to hook, and the connection is simpler and more convenient.
Based on the sliding guide bush that provides in the above-mentioned embodiment, the utility model also provides a latent oily linear electric motor of high temperature viscous crude well, this latent oily linear electric motor of high temperature viscous crude well includes the sliding guide bush, and wherein the sliding guide bush is arbitrary sliding guide bush in the above-mentioned embodiment. Because the sliding guide sleeve in the embodiment is adopted by the submersible linear motor for the high-temperature heavy oil well, the submersible linear motor for the high-temperature heavy oil well has the beneficial effects that reference is made to the embodiment. The structure of other parts of the submersible linear motor for the high-temperature heavy oil well refers to the prior art, and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a submersible linear electric motor of high temperature viscous crude well and sliding guide pin bushing thereof have carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The sliding guide sleeve of the submersible linear motor for the high-temperature heavy oil well is characterized by comprising a sliding guide sleeve body (3), a guide sleeve seat (1) sleeved on the outer side of the sliding guide sleeve body (3) and a guide sleeve guard ring (2) sleeved between the guide sleeve seat (1) and the sliding guide sleeve body (3), wherein the thermal expansion coefficient of the guide sleeve guard ring (2) is smaller than that of the guide sleeve seat (1) and larger than that of the sliding guide sleeve body (3), the elastic modulus of the guide sleeve guard ring (2) is smaller than that of the sliding guide sleeve body (3) and that of the guide sleeve seat (1), and the guide sleeve seat (1) and the guide sleeve guard ring (2) and the sliding guide sleeve body (3) are in interference fit.
2. Sliding guide sleeve according to claim 1, characterized in that there is a large interference fit between the guide sleeve seat (1) and the guide sleeve collar (2), and a small interference fit between the guide sleeve collar (2) and the sliding guide sleeve body (3).
3. Sliding guide sleeve according to claim 1, characterised in that the guide sleeve collar (2) comprises a plurality of layers of guide sleeve sub-collars which are fitted one after the other in an interference fit.
4. The sliding guide sleeve according to claim 1, characterized in that the material of the guide sleeve seat (1) and the sliding guide sleeve body (3) is stainless steel and hard alloy respectively, and the material of the guide sleeve guard ring (2) is titanium alloy.
5. A sliding guide according to any one of claims 1-4, characterised in that the first end of the guide holder (1) has a first spigot (11), the first end faces of the sliding guide body (3) and the guide guard (2) are flush, and the first end faces of the sliding guide body (3) and the guide guard (2) abut against the first spigot (11).
6. A sliding guide sleeve according to claim 5, characterised in that the second end of the guide sleeve guard ring (2) has a second spigot (21), and the second end face of the sliding guide sleeve body (3) abuts against the second spigot (21).
7. The sliding guide sleeve according to claim 6, characterized in that the second end of the sliding guide sleeve body (3) has a notch matching with the second spigot (21), and the second spigot (21) abuts against the notch.
8. The sliding guide according to claim 7, characterized in that the second end face of the guide holder (1), the second end face of the guide guard (2) and the second end face of the sliding guide body (3) are flush.
9. A submersible linear motor for high-temperature heavy oil wells, which comprises a sliding guide sleeve and is characterized in that the sliding guide sleeve is specifically the sliding guide sleeve as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222185116.XU CN217761286U (en) | 2022-08-18 | 2022-08-18 | Submersible linear motor for high-temperature heavy oil well and sliding guide sleeve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222185116.XU CN217761286U (en) | 2022-08-18 | 2022-08-18 | Submersible linear motor for high-temperature heavy oil well and sliding guide sleeve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217761286U true CN217761286U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222185116.XU Active CN217761286U (en) | 2022-08-18 | 2022-08-18 | Submersible linear motor for high-temperature heavy oil well and sliding guide sleeve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217761286U (en) |
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2022
- 2022-08-18 CN CN202222185116.XU patent/CN217761286U/en active Active
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