CN219864897U - Petroleum casing - Google Patents
Petroleum casing Download PDFInfo
- Publication number
- CN219864897U CN219864897U CN202321299248.3U CN202321299248U CN219864897U CN 219864897 U CN219864897 U CN 219864897U CN 202321299248 U CN202321299248 U CN 202321299248U CN 219864897 U CN219864897 U CN 219864897U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- wall
- sleeve body
- deep groove
- groove ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003208 petroleum Substances 0.000 title claims abstract description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 7
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 11
- 230000004308 accommodation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The embodiment of the utility model provides a petroleum casing pipe, which is sleeved outside a casing pipe body through an inner sleeve pipe, wherein the inner wall of the inner sleeve pipe is fixedly connected with the outer wall of the casing pipe body, and the outer wall of the inner sleeve pipe is provided with an annular bulge along the radial direction of the casing pipe body; the inner wall of the locking ring is fixedly connected with the outer wall of the sleeve body; the outer sleeve is sleeved outside the inner sleeve; the inner ring of the deep groove ball bearing is abutted with the outer wall of the inner sleeve, and the outer ring of the deep groove ball bearing is abutted with the inner wall of the outer sleeve; the spring is sleeved on the inner sleeve, one end of the spring is abutted to the annular protrusion, the other end of the spring is abutted to the outer sleeve, and the spring is used for bearing load along the axial direction of the sleeve body. Therefore, the deep groove ball bearing is used for bearing the friction force from the well wall and the spring is used for bearing the thrust force from the drilling machine, so that the sleeve body is prevented from bearing the friction force and the thrust force, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of petroleum, in particular to a petroleum casing pipe.
Background
In the oil and gas extraction process, well drilling is usually required, and during the well drilling process and after well completion, oil casings are required to support the well wall so as to ensure the normal operation of the whole oil well during the well drilling process and after well completion.
Because of the need to support the borehole wall, the petroleum casing is required to withstand the thrust from the drilling machine in the radial direction of the petroleum casing and the frictional force with the borehole wall in the axial direction. Resulting in a very fragile oil casing.
Therefore, there is a problem in the prior art that the petroleum casing is easily damaged.
Disclosure of Invention
The embodiment of the utility model provides a petroleum casing pipe, which aims to solve the problem of obstructed electrolyte circulation in the prior art.
The embodiment of the utility model also provides the petroleum casing pipe, which comprises a casing pipe body, an inner casing pipe, an outer casing pipe, a locking ring, a deep groove ball bearing and a spring;
the inner sleeve is sleeved outside the sleeve body, the inner wall of the inner sleeve is fixedly connected with the outer wall of the sleeve body, and the outer wall of the inner sleeve is provided with an annular bulge along the radial direction of the sleeve body;
the inner wall of the locking ring is fixedly connected with the outer wall of the sleeve body, and the locking ring is used for forming a support for the outer sleeve in the axial direction of the sleeve body;
the outer sleeve is sleeved outside the inner sleeve, and a containing space for containing the deep groove ball bearing and the spring is formed between the outer sleeve and the inner sleeve;
the inner ring of the deep groove ball bearing is abutted with the outer wall of the inner sleeve, and the outer ring of the deep groove ball bearing is abutted with the inner wall of the outer sleeve;
the spring is sleeved on the inner sleeve, one end of the spring is abutted to the annular protrusion, the other end of the spring is abutted to the outer sleeve, and the spring is used for bearing load along the axial direction of the sleeve body.
Optionally, the petroleum casing further comprises: the number of the deep groove ball bearings is three, the three deep groove ball bearings are arranged at intervals along the shaft of the sleeve body, and the spacer sleeve is arranged between every two adjacent deep groove ball bearings.
Optionally, a lock nut is disposed at one end of the outer wall of the inner sleeve, which is far away from the locking ring, the inner sleeve is in threaded connection with the lock nut, and the lock nut is used for fixing the deep groove ball bearing.
Optionally, the petroleum casing further comprises: an annular end cap; the annular end cover is sleeved on the sleeve body, the annular end cover is in interference fit with the sleeve body, and one end of the annular end cover is in butt joint with the outer sleeve.
Optionally, the petroleum casing further comprises: an iron-based tungsten carbide tape; the outer wall of the outer sleeve is provided with the iron-based tungsten carbide belt.
Optionally, the petroleum casing further comprises: a friction ring; the friction ring is sleeved between the outer sleeve and the gap of the sleeve body and is respectively abutted with the outer sleeve and the sleeve body.
Optionally, the friction ring is made of tin bronze.
Optionally, the petroleum casing further comprises: a male connector and a female connector;
the male joint is far away from the threaded one end and the sleeve body is close to one end fixed connection of the locking ring, and the female joint is far away from the threaded one end and the sleeve body is far away from one end fixed connection of the locking ring.
Optionally, the male connector is provided with a conical male thread, and the female connector is provided with a conical female thread, and the male connector of one petroleum casing is in threaded connection with the female connector of the other petroleum casing.
Optionally, the thread profile of the conical male thread and the thread profile of the conical female thread are square, the taper is 1:16, and the thread pitch is 8mm.
In the embodiment of the utility model, the inner sleeve is sleeved outside the sleeve body, the inner wall of the inner sleeve is fixedly connected with the outer wall of the sleeve body, and the outer wall of the inner sleeve is provided with an annular bulge along the radial direction of the sleeve body; the inner wall of the locking ring is fixedly connected with the outer wall of the sleeve body; the outer sleeve is sleeved outside the inner sleeve; the inner ring of the deep groove ball bearing is abutted with the outer wall of the inner sleeve, and the outer ring of the deep groove ball bearing is abutted with the inner wall of the outer sleeve; the spring is sleeved on the inner sleeve, one end of the spring is abutted to the annular protrusion, the other end of the spring is abutted to the outer sleeve, and the spring is used for bearing load along the axial direction of the sleeve body. Therefore, the deep groove ball bearing is used for bearing the friction force from the well wall and the spring is used for bearing the thrust force from the drilling machine, so that the sleeve body is prevented from bearing the friction force and the thrust force, and the service life is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings used in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a petroleum casing according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a partial enlarged view at B in fig. 1.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the structures so used are interchangeable under appropriate circumstances such that embodiments of the utility model are capable of operation in sequences other than those illustrated or otherwise described herein, and that the objects identified by "first," "second," etc. are generally of a type and do not limit the number of objects, for example, the first object can be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The petroleum casing provided by the embodiment of the utility model is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, an embodiment of the present utility model provides a petroleum casing including: the sleeve comprises a sleeve body 2, an inner sleeve 6, an outer sleeve 11, a locking ring 3, a deep groove ball bearing 8 and a spring 5;
the inner sleeve 6 is sleeved outside the sleeve body 2, the inner wall of the inner sleeve 6 is fixedly connected with the outer wall of the sleeve body 2, and the outer wall of the inner sleeve 6 is provided with an annular bulge along the radial direction of the sleeve body 2;
the inner wall of the locking ring 3 is fixedly connected with the outer wall of the sleeve body 2, and the locking ring 3 is used for forming a support for the outer sleeve 11 along the axial direction of the sleeve body 2;
the outer sleeve 11 is sleeved outside the inner sleeve 6, and a containing space 9 for containing the deep groove ball bearing 8 and the spring 5 is formed between the outer sleeve 11 and the inner sleeve 6;
the inner ring of the deep groove ball bearing 8 is abutted with the outer wall of the inner sleeve 6, and the outer ring of the deep groove ball bearing 8 is abutted with the inner wall of the outer sleeve 11;
the spring 5 is sleeved on the inner sleeve 6, one end of the spring 5 is abutted against the annular protrusion, the other end of the spring 5 is abutted against the outer sleeve 11, and the spring 5 is used for bearing load along the axial direction of the sleeve body 2
Specifically, the sleeve body 2 and the inner sleeve 6 may be welded or integrally formed.
The outer wall of the inner sleeve 6 is provided with an annular projection along the radial direction of the sleeve body 2, which is used for carrying the deep groove ball bearing 8.
In the embodiment of the present utility model, the length of the sleeve body 2 is greater than the sum of the radial length of the inner sleeve 6 and the radial length of the locking ring 3. The inner sleeve 6 and the locking ring 3 are sleeved and fixed on the sleeve body 2 at a certain distance, the outer sleeve 11 is sleeved on the inner sleeve 6 but is not contacted with the inner sleeve 6, and one end of the outer sleeve 11 is propped against the locking ring 3.
Further, one end of the spring 5 abuts against one end of the annular protrusion, and the other end of the spring 5 abuts against one end of the outer sleeve 11, whereby the force from the sleeve body 2 in the axial direction can be offset.
Specifically, the outer ring of the deep groove ball bearing 8 is attached to the inner wall of the outer sleeve 11, and the inner ring of the deep groove ball bearing 8 is attached to the outer wall of the inner sleeve 6, so that the friction force between the outer sleeve 11 and the well wall can be counteracted.
Further, the accommodation space 9 is filled with lubricating grease.
In the embodiment of the utility model, the inner sleeve 6 is sleeved outside the sleeve body 2, the inner wall of the inner sleeve 6 is fixedly connected with the outer wall of the sleeve body 2, and the outer wall of the inner sleeve 6 is provided with an annular bulge along the radial direction of the sleeve body 2; the inner wall of the locking ring 3 is fixedly connected with the outer wall of the sleeve body 2; the outer sleeve 11 is sleeved outside the inner sleeve 6; the inner ring of the deep groove ball bearing 8 is abutted with the outer wall of the inner sleeve 6, and the outer ring of the deep groove ball bearing 8 is abutted with the inner wall of the outer sleeve 11; the spring 5 is sleeved on the inner sleeve 6, one end of the spring 5 is abutted against the annular protrusion, the other end of the spring is abutted against the outer sleeve 11, and the spring is used for bearing load along the axial direction of the sleeve body. In this way, the deep groove ball bearing 8 is used for bearing the friction force from the well wall and the spring 5 is used for bearing the thrust force from the drilling machine, so that the sleeve body 2 is prevented from bearing the friction force and the thrust force, and the service life is prolonged.
Optionally, in some embodiments, the petroleum casing further comprises: the number of the deep groove ball bearings 8 is three, the three deep groove ball bearings 8 are arranged at intervals along the shaft of the sleeve body 2, and the spacer sleeve 7 is arranged between the adjacent deep groove ball bearings 8.
Specifically, the number of the spacers 7 may be the same as or different from the number of the deep groove ball bearings 8, and when the number of the spacers 7 is 4 and the number of the deep groove ball bearings 8 is 5, one of the 5 deep groove ball bearings 8 closest to the locking ring 3 is directly abutted against one end of the annular protrusion, the other end thereof is abutted against the spacers 7, and the spacers 7 are sequentially arranged between the two adjacent deep groove ball bearings 8.
In the embodiment of the utility model, the friction force between the outer sleeve 11 and the well wall can be better counteracted by arranging the three deep groove ball bearings 8, so that the service life of the petroleum sleeve is prolonged.
Optionally, in some embodiments, a lock nut 12 is disposed at an end of the outer wall of the inner sleeve 6 away from the locking ring 3, the inner sleeve 6 is screwed with the lock nut 12, and the lock nut 12 is used for fixing the deep groove ball bearing 8.
When the number of the deep groove ball bearings 8 is 3, the lock nut 12 is used to abut and fix the deep groove ball bearing 8 farthest from the lock ring 3 out of the 3 deep groove ball bearings 8.
In the embodiment of the utility model, the deep groove ball bearing 8 can be better fixed by arranging the lock nut 12, so that the whole structure of the petroleum casing is more compact and stable.
Optionally, in some embodiments, the petroleum casing further comprises: an annular end cap 13;
the annular end cover 13 is sleeved on the sleeve body 2, the annular end cover 13 is in interference fit with the sleeve body 2, and one end of the annular end cover 13 is abutted to the outer sleeve 11.
In the embodiment of the utility model, the outer sleeve 11 can be better fixed by arranging the annular end cover 13, so that the whole structure of the petroleum sleeve is more compact and stable.
Optionally, in some embodiments, the petroleum casing further comprises:
an iron-based tungsten carbide tape 10;
the outer wall of the outer sleeve 11 is provided with the iron-based tungsten carbide belt 10.
In the embodiment of the utility model, the iron-based tungsten carbide belt 10 plays roles of wear resistance and reinforcing the jacket, so that the service life of the petroleum casing is prolonged, and the risk of damage is reduced.
Optionally, in some embodiments, the petroleum casing further comprises:
a friction ring 4;
the friction ring 4 is sleeved between the gap between the outer sleeve 11 and the sleeve body 2 and is respectively abutted against the outer sleeve 11 and the sleeve body 2.
In the embodiment of the utility model, the friction ring 4 is arranged between the outer sleeve 11 and the sleeve body 2, so that the sealing effect is achieved, and sediment and the like are prevented from entering the accommodating space 9.
Optionally, in some embodiments, the friction ring 4 is made of tin bronze.
Optionally, in some embodiments, the petroleum casing further comprises: a male connector 1 and a female connector 14;
the male connector 1 is fixedly connected with one end, far away from the screw thread, of the sleeve body 2, close to the locking ring 3, and one end, far away from the screw thread, of the female connector 14 is fixedly connected with one end, far away from the locking ring 3, of the sleeve body 2.
In the embodiment of the present utility model, by providing the male connector 1 and the female connector 14, a plurality of petroleum casings can be connected to each other, so that the petroleum casings can be used in combination in the drilling process, or two petroleum casings can be used in combination, or three petroleum casings can be used in combination, which is not limited in any way.
Optionally, in some embodiments, the male connector 1 is provided with a conical male thread, and the female connector 14 is provided with a conical female thread, and the male connector 1 of one petroleum casing is screwed with the female connector 14 of another petroleum casing.
Optionally, in some embodiments, the thread profile of the tapered male thread and the tapered female thread is square, the taper is 1:16, and the pitch is 8mm.
It should be noted that, in this document, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present utility model is not limited to performing the functions in the order discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.
Claims (10)
1. A petroleum casing, said petroleum casing comprising: the device comprises a sleeve body, an inner sleeve, an outer sleeve, a locking ring, a deep groove ball bearing and a spring;
the inner sleeve is sleeved outside the sleeve body, the inner wall of the inner sleeve is fixedly connected with the outer wall of the sleeve body, and the outer wall of the inner sleeve is provided with an annular bulge along the radial direction of the sleeve body;
the inner wall of the locking ring is fixedly connected with the outer wall of the sleeve body, and the locking ring is used for forming a support for the outer sleeve in the axial direction of the sleeve body;
the outer sleeve is sleeved outside the inner sleeve, and a containing space for containing the deep groove ball bearing and the spring is formed between the outer sleeve and the inner sleeve;
the inner ring of the deep groove ball bearing is abutted with the outer wall of the inner sleeve, and the outer ring of the deep groove ball bearing is abutted with the inner wall of the outer sleeve;
the spring is sleeved on the inner sleeve, one end of the spring is abutted to the annular protrusion, the other end of the spring is abutted to the outer sleeve, and the spring is used for bearing load along the axial direction of the sleeve body.
2. The oil casing of claim 1, further comprising: the number of the deep groove ball bearings is three, the three deep groove ball bearings are arranged at intervals along the shaft of the sleeve body, and the spacer sleeve is arranged between every two adjacent deep groove ball bearings.
3. The oil casing according to claim 1, wherein an end of the outer wall of the inner casing remote from the locking ring is provided with a lock nut, the inner casing being in threaded connection with the lock nut, the lock nut being used for fixing the deep groove ball bearing.
4. The oil casing of claim 1, further comprising: an annular end cap;
the annular end cover is sleeved on the sleeve body, the annular end cover is in interference fit with the sleeve body, and one end of the annular end cover is in butt joint with the outer sleeve.
5. The oil casing of claim 1, further comprising: an iron-based tungsten carbide tape;
the outer wall of the outer sleeve is provided with the iron-based tungsten carbide belt.
6. The oil casing of claim 1, further comprising: a friction ring;
the friction ring is sleeved between the outer sleeve and the gap of the sleeve body and is respectively abutted with the outer sleeve and the sleeve body.
7. The oil casing of claim 6, wherein the friction ring is made of tin bronze.
8. The oil casing of claim 1, further comprising: a male connector and a female connector;
the male joint is far away from the threaded one end and the sleeve body is close to one end fixed connection of the locking ring, and the female joint is far away from the threaded one end and the sleeve body is far away from one end fixed connection of the locking ring.
9. The oil casing of claim 8, wherein said pin is provided with a tapered male thread and said box is provided with a tapered female thread, said pin of one of said oil casings being threadably connected to said box of another of said oil casings.
10. The oil casing of claim 9, wherein the thread profile of the tapered male thread and the tapered female thread are square, the taper is 1:16, and the pitch is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321299248.3U CN219864897U (en) | 2023-05-26 | 2023-05-26 | Petroleum casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321299248.3U CN219864897U (en) | 2023-05-26 | 2023-05-26 | Petroleum casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219864897U true CN219864897U (en) | 2023-10-20 |
Family
ID=88368965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321299248.3U Active CN219864897U (en) | 2023-05-26 | 2023-05-26 | Petroleum casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219864897U (en) |
-
2023
- 2023-05-26 CN CN202321299248.3U patent/CN219864897U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |