Combined casing centralizer

Abstract

The utility model relates to the technical field of centralizers, and discloses a combined casing centralizer which comprises a first shell, one end of the first shell is fixedly connected with a first hinge, the end, away from the first shell, of the first hinge is fixedly connected with a second shell, the end, away from the first hinge, of the first shell is fixedly connected with a first buckle, and the second shell is fixedly connected with a second buckle. The end, away from the first hinge, of the second shell is fixedly connected with a first clamping groove, the interior of the first shell and the interior of the second shell are each fixedly connected with two first bolts, and the ends, close to each other, of the first bolts are each slidably connected with a first supporting body. According to the utility model, according to the size of the sleeve, the shell in the upper half part is placed outside the sleeve, the buckle and the clamping groove are fastened, the bolt is screwed to enable the supporting body to be tightly attached to the sleeve, and the upper half part and the lower half part are connected through the supporting plate, so that the lower half part operates together when the upper half part is used; the problem that a centralizer cannot work due to the fact that the size is not matched is solved.

Description

Technical Field

[0001] This utility model relates to the field of centralizer technology, and in particular to a combined sleeve centralizer. Background Technology

[0002] A combined casing centralizer is a device used in wellbore operations such as oil and gas wells to ensure that the casing is placed centrally within the wellbore. It effectively prevents the casing from sticking to the well wall, ensuring cementing quality and allowing the cement slurry to be evenly distributed in the annular space between the casing and the well wall.

[0003] Before using the centralizer, the staff measures the outer diameter, length and other specifications of the sleeve to select the most suitable centralizer from among many centralizers. The inner diameter of the centralizer needs to be perfectly matched with the outer diameter of the sleeve before it is firmly installed on the sleeve.

[0004] In the existing technology, the inner diameter and length of the centralizer are fixed. When using it, it is necessary to prepare centralizers with various inner diameters and lengths to match the size of the sleeve. If there is no suitable centralizer, subsequent work cannot be carried out. Utility Model Content

[0005] This utility model proposes a combined sleeve centralizer, which aims to improve the problem that some existing devices cannot change the size of the centralizer.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined sleeve straightener, comprising a housing 1, a hinge 1 fixedly connected to one end of the housing 1, a housing 2 fixedly connected to the end of the hinge 1 away from the housing 1, a buckle 1 fixedly connected to the end of the housing 1 away from the hinge 1, a slot 1 fixedly connected to the end of the housing 2 away from the hinge 1, two bolts 1 threadedly connected inside the housing 1 and the proximal ends of the plurality of bolts 1 slidably connected to a support body 1.

[0007] As a further description of the above technical solution: a support plate 2 is slidably connected to the bottom inner side of the first housing, and a support plate 1 is slidably connected to the bottom inner side of the second housing.

[0008] As a further description of the above technical solution: the end of the support plate two away from the housing one is slidably connected to the housing four, and the end of the support plate one away from the housing two is slidably connected to the housing three.

[0009] As a further description of the above technical solution: one end of the housing four is fixedly connected to a hinge two, and the end of the hinge two away from the housing four is fixedly connected to one end of the housing three.

[0010] As a further description of the above technical solution: a buckle 2 is fixedly connected to the end of the housing 4 away from the hinge 2, and a slot 2 is fixedly connected to the end of the housing 3 away from the hinge 2.

[0011] As a further description of the above technical solution: both the housing four and the housing three are internally threaded with two bolts two, and the near ends of the plurality of bolts two are slidably connected to a support body two.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, according to the sleeve size, the shell in the upper part is placed outside the sleeve and the buckle and slot are fastened. The bolt is turned so that the support body is tightly attached to the sleeve. Since the upper part and the lower part are connected by the support plate, the lower part will move together when the upper part is used, so as to solve the problem that the centralizer cannot work due to mismatch in size.

[0014] 2. In this utility model, according to the sleeve size, the upper and lower parts can be lengthened by the support plate, and the support plate can be fixed to the two sleeves by bolts, which makes it convenient for workers to weld the sleeves. Attached Figure Description

[0015] Figure 1 This is a perspective view of a combined sleeve centralizer proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the support plate of a combined sleeve centralizer proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the hinge structure of a combined sleeve centralizer proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the bolt structure of a combined sleeve centralizer proposed in this utility model.

[0019] Legend:

[0020] 1. Shell 1; 2. Shell 2; 3. Support plate 1; 4. Support plate 2; 5. Shell 3; 6. Shell 4; 7. Bolt 1; 8. Hinge 1; 9. Support body 1; 10. Buckle 1; 11. Slot 1; 12. Bolt 2; 13. Support body 2; 14. Hinge 2; 15. Buckle 2; 16. Slot 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1 to 3 This utility model provides an embodiment of a combined sleeve centralizer, comprising a housing 1, which is used to protect and support the operation of the internal structure. The housing 1 is semi-cylindrical in shape and made of alloy steel. A hinge 8 is fixedly connected to one end of the housing 1, which is used to open and close the housing 1 and the housing 2. The hinge 8 is composed of two columnar bodies and a shaft, and is made of high-strength alloy steel due to frequent use. The end of the hinge 8 away from the housing 1 is fixedly connected to the housing 2, which is also used to protect and support the operation of the internal structure. The housing 2 is semi-cylindrical in shape and made of cast steel. A buckle 10 is fixedly connected to the end of the housing 1 away from the hinge 8. The buckle 10 is used for fixing and is hook-shaped and adjustable according to the width of the housing 1. The casing is made of high-strength alloy steel and is used frequently. The end of the casing 2 away from the hinge 8 is fixedly connected to a slot 11. The slot 11 and the buckle 10 fix the casing 2 and the casing 1 together. The shape of the slot 11 can form an integral part with the buckle 10. The casing 2 and the casing 1 are made of the same material. The interior of the casing 1 and the casing 2 are threaded with two bolts 7. The bolts 7 are used for adjustment and fixation. The overall shape of the bolts 7 is different from that of ordinary bolts. There is a cylindrical baffle connected to the end. The casing is made of high-strength alloy steel and can adapt to high-intensity and frequent use. The ends of the multiple bolts 7 are slidably connected to a support body 9. The support body 9 is used to support the sleeve. The shape of the support body 9 is one-fifth of a cylinder. It is made of alloy steel and can reduce friction and wear with the sleeve.

[0023] Reference Figures 1 to 4A support plate 4 is slidably connected to the inner bottom of shell 1. Support plate 4 supports shell 1 and shell 6. It is an arc-shaped plate made of high-strength alloy steel to prevent deformation under stress. A support plate 3 is slidably connected to the inner bottom of shell 2. Support plate 3 supports shell 2 and shell 5. It is an arc-shaped plate made of high-strength alloy steel to prevent deformation under stress. Shell 6 is slidably connected to the end of support plate 4 away from shell 1. Shell 6 supports bolt 212 for adjusting and fixing support body 213. The body is semi-cylindrical and made of alloy steel. The end of the support plate 13 away from the shell 2 is slidably connected to the shell 3 5. The shell 3 5 is used to support the support bolt 2 12 for adjustment and fixing of the support body 2 13. The whole body is semi-cylindrical and made of alloy steel. One end of the shell 4 6 is fixedly connected to the hinge 2 14. The hinge 2 14 allows the shell 3 5 and the shell 4 6 to open and close. The whole body is composed of two columnar bodies and a shaft. Because it needs to be used frequently, it is made of high-strength alloy steel. The end of the hinge 2 14 away from the shell 4 6 is fixedly connected to one end of the shell 3 5.

[0024] Reference Figure 1 , Figure 2 , Figure 4 The end of housing 4 6 furthest from hinge 2 14 is fixedly connected to buckle 2 15. Buckle 2 15 and slot 2 16 fix housing 4 6 and housing 3 5 together. Its shape is hook-shaped and adjustable according to the width of housing 4 6. Because it needs to be used frequently, it is made of high-strength alloy steel. The end of housing 3 5 furthest from hinge 2 14 is fixedly connected to slot 2 16. Slot 2 16 and buckle 2 15 fix housing 3 5 and housing 4 6 together. Its shape can form an integral part with buckle 2 15. The casing is made of a single material. Both the shell 4 (6) and the shell 3 (5) are internally connected to two bolts 2 (12). Bolts 2 (12) are used to adjust and fix the support body 2 (13). The overall shape of the bolts 2 (12) is different from that of ordinary bolts. They have a cylindrical baffle connected to the end. The bolts 2 (12) are cast from high-strength alloy steel and can be used to withstand high-intensity and frequent use. The ends of the bolts 2 (12) are slidably connected to the support body 2 (13). The support body 2 (13) is used to support the sleeve. Its shape is one-fifth of a cylinder and it is made of alloy steel to reduce friction and wear with the sleeve.

[0025] Working principle: The housing 1 and housing 2 are placed outside the sleeve by hinge 8. Because the housing 1 and housing 4 are fixed by support plate 2 4 in the middle, and the housing 2 and housing 3 are fixed by support plate 2 4 in the middle, they will work together during operation. Buckle 1 10 and slot 1 11 fix the upper part together, buckle 2 15 and slot 2 16 fix the lower part. Tighten bolt 1 7 and bolt 2 12 to drive support body 1 9 and support body 2 13 to stick to the sleeve.

[0026] Move shell 1 away from shell 4 6 via support plate 1 3, move shell 2 away from shell 3 5 via support plate 2 4, tighten bolt 1 7 to press support 9 against the sleeve, tighten bolt 2 12 to press support 2 13 against the other sleeve.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined sleeve centralizer, comprising a housing (1), characterized in that: One end of the housing 1 (1) is fixedly connected to a hinge 1 (8), and the end of the hinge 1 (8) away from the housing 1 (1) is fixedly connected to a housing 2 (2). The end of the housing 1 (1) away from the hinge 1 (8) is fixedly connected to a buckle 1 (10), and the end of the housing 2 (2) away from the hinge 1 (8) is fixedly connected to a slot 1 (11). The interior of the housing 1 (1) and the housing 2 (2) are both threadedly connected to two bolts 1 (7), and the ends of the multiple bolts 1 (7) that are close to each other are slidably connected to a support body 1 (9).

2. The combined sleeve centralizer according to claim 1, characterized in that: The bottom inner side of the first shell (1) is slidably connected to the second support plate (4), and the bottom inner side of the second shell (2) is slidably connected to the first support plate (3).

3. A combined sleeve centralizer according to claim 2, characterized in that: The second support plate (4) is slidably connected to the fourth shell (6) at the end away from the first shell (1), and the third shell (5) is slidably connected to the end of the first support plate (3) away from the second shell (2).

4. A combined sleeve centralizer according to claim 3, characterized in that: One end of the fourth housing (6) is fixedly connected to a second hinge (14), and the end of the second hinge (14) away from the fourth housing (6) is fixedly connected to one end of the third housing (5).

5. A combined sleeve centralizer according to claim 4, characterized in that: The end of the housing four (6) away from the hinge two (14) is fixedly connected with a buckle two (15), and the end of the housing three (5) away from the hinge two (14) is fixedly connected with a slot two (16).

6. A combined sleeve centralizer according to claim 3, characterized in that: Both the housing four (6) and the housing three (5) are internally threaded with two bolts two (12), and the ends of the multiple bolts two (12) are slidably connected to a support body two (13).

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