Supporting device for petroleum drilling and production packer

Abstract

The utility model relates to the technical field of packers, and discloses a supporting device for a petroleum drilling and production packer, which comprises a pipe body, a supporting ring is fixedly connected outside the pipe body, two sides of the supporting ring are fixedly connected with a connecting component for fixing, and the connecting component is fixedly connected with the pipe body. The bottom end of the side, away from the pipe body, of the connecting assembly is fixedly connected with a telescopic assembly used for adjusting the supporting height of the pipe body, the bottom end of the telescopic assembly is rotationally connected with a second rotating block, the bottom end of the second rotating block is fixedly connected with a bottom column, and a direct current motor outside the bottom column is provided with a lantern ring. A plurality of sliding blocks are fixedly connected to the inner side of the lantern ring, and a plurality of side blocks are fixedly connected to the outer side of the lantern ring. According to the utility model, by pressing and rotating the lantern ring, the sliding block is clamped with the inner wall of the bottom end of the bottom column under the pulling of the spring II, so that the extension plate extends out, the overall area of the bottom block is increased, stable support is provided for the pipe body, and the probability of damage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to packer technical field especially relates to a kind of support device for petroleum drilling and production packer. BACKGROUND

[0002] Packer is the key tool for isolating different sections or fluids in the well in petroleum drilling and production. It isolates the annular space between the pipe string and the wellbore through elastic sealing element, realizing the control of specific formation. Packer is widely used in drilling, oil production and downhole operation, ensuring the safety and effectiveness of operation, preventing the channeling of oil and gas, water and other fluids, thereby improving production efficiency.

[0003] In the prior art, part of the packer is directly installed in the wellbore, but because the overall length is too long, the overall stability of the entire packer is low, increasing the probability of damage. At this time, the staff needs to take it out for maintenance, prolonging the period of petroleum drilling and production. Therefore, a kind of support device for petroleum drilling and production packer is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of support device for petroleum drilling and production packer, to improve the problem that part of the packer in the prior art is directly installed in the wellbore, but because the overall length is too long, the overall stability of the entire packer is low.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of support device for petroleum drilling and production packer, including pipe body, the outside of the pipe body is fixedly connected with support ring, the both sides of the support ring are fixedly connected with the connecting assembly for playing the role of fixed, the side bottom of the connecting assembly away from the pipe body is fixedly connected with the telescopic assembly for adjusting the support height of the pipe body, the bottom of the telescopic assembly is rotatably connected with the second rotating block, the bottom of the second rotating block is fixedly connected with the bottom column, the outside of the bottom column has a thimble, the inside of the thimble is fixedly connected with a plurality of sliding blocks, the outside of the thimble is fixedly connected with a plurality of side blocks, the outside of the side block is rotatably connected with two support rods, the other end of two support rods is rotatably connected with slide pole, the outside of the slide pole is rotatably connected with extension plate, the bottom of the bottom column is rotatably connected with bottom block;

[0007] As a further description of the above technical scheme:

[0008] The connecting assembly includes a support plate, and the inside of the support plate is fixedly connected to the outside of the support ring.

[0009] As a further description of the above technical scheme:

[0010] The telescopic assembly comprises an inner column, the top end of the inner column is fixedly connected to the bottom end of the support plate, the inner wall of the inner column is slidably connected with a clamping column, the right side of the clamping column is fixedly connected with a limiting block, one end of the limiting block is fixedly connected with a spring one, the other end of the spring one is fixedly connected to the inner wall of the inner column, the bottom end of the inner column is fixedly connected with a limiting disc, the outer portion of the inner column is slidably connected with an outer column, and the bottom end of the outer column is fixedly connected with a rotating block one.

[0011] As a further description of the above technical solution:

[0012] The rear end of the sliding rod is rotatably connected with a sliding column, and the bottom end of the sliding column is fixedly connected with a limiting plate.

[0013] As a further description of the above technical solution:

[0014] The outer top end of the bottom column is fixedly connected with a support ring, and the outer portion of the bottom column is provided with a spring two.

[0015] As a further description of the above technical solution:

[0016] One end of the spring two is fixedly connected to one side of the support ring, and the other end of the spring two is fixedly connected to one side of the sleeve ring.

[0017] As a further description of the above technical solution:

[0018] The outer portion of the limiting block is slidably connected to the inner wall of the inner column, and the outer portion of the limiting disc is slidably connected to the inner wall of the outer column.

[0019] As a further description of the above technical solution:

[0020] The outer portion of the extension plate is slidably connected to the inner wall of the bottom block, and the outer portion of the sliding column is slidably connected to the inner wall of the bottom block.

[0021] The utility model has the advantages of the following:

[0022] 1、 in the utility model, by pressing and rotating the sleeve ring, the sliding block is clamped with the inner wall of the bottom end of the bottom column under the pulling of the spring two, so that the extension plate is extended, the overall area of the bottom block is increased, the pipe body is provided with stable support, and the probability of damage is reduced.

[0023] 2、 in the utility model, by pressing the clamping column, the clamping column slides into the inner wall of the outer column, then the support plate is pulled, the inner column is pulled out from the inside of the outer column, the overall height of the pipe body is adjusted, the device can be adapted to different calibers of wellbores, and the applicability of the device is improved;Meanwhile, the setting of the rotating block one and the rotating block two makes the device not only adapt to different calibers, but also adapt to some special angle wellbores, and the practicability is further improved. ACCURATE DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of a supporting device for a petroleum drilling and production packer is provided in the present application;

[0025] Figure 2 A structure view of a supporting ring of the supporting device for the petroleum drilling and production packer is provided in the present application;

[0026] Figure 3 A Figure 2 enlarged view of A in the figure;

[0027] Figure 4 A Figure 2 enlarged view of B in the figure.

[0028] Legend:

[0029] 1, pipe body; 2, supporting ring; 3, supporting plate; 4, inner column; 5, clamping column; 6, limiting block; 7, spring one; 8, limiting disc; 9, outer column; 10, rotating block one; 11, rotating block two; 12, bottom column; 13, sleeve ring; 14, sliding block; 15, side block; 16, supporting rod; 17, sliding rod; 18, extension plate; 19, sliding column; 20, limiting plate; 21, bottom block; 22, supporting ring; 23, spring two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Refer to Figures 1 to 3The utility model provides a kind of support device for petroleum drilling and production packer, including pipe body 1, pipe body 1 outside fixedly connected with support ring 2, the support ring 2 here is tightly adhered with the pipe body 1 here, i.e.

[0032] One end of limit block 6 is fixedly connected with spring one 7, the other end of spring one 7 is fixedly connected in the inner wall of inner column 4, the spring one 7 here provides effective support force for card column 5, the bottom end of inner column 4 is fixedly connected with limit disc 8, the outer portion of inner column 4 is slidably connected with outer column 9, after pressing the card column 5 here, it is separated from the clamping of outer column 9, then inner column 4 can be pulled, so that the whole device is pulled high, can be adapted to different caliber wellbore, improve the applicability of the device, the outer portion of limit disc 8 is slidably connected in the inner wall of outer column 9, the bottom end of outer column 9 is fixedly connected with rotating block one 10, the outer column 9 here provides support for rotating block one 10, the bottom end of telescopic component is rotatably connected with rotating block two 11.

[0033] Refer to Figures 2 to 4 The bottom end of rotating block two 11 is fixedly connected with bottom column 12, and the outer portion of bottom column 12 has a thimble 13, the bottom column 12 here provides sliding support for thimble 13, the inner side of thimble 13 is fixedly connected with a plurality of sliding blocks 14, the thimble 13 here can drive the sliding block 14 to move when sliding and rotating, the outer side of thimble 13 is fixedly connected with a plurality of side blocks 15, the outer portion of side block 15 is rotatably connected with two support rods 16, the thimble 13 here can drive the side block 15 to descend when descending, so as to extrude support rod 16 and make it bend, the other end of two support rods 16 is rotatably connected with slide pole 17, the outer portion of slide pole 17 is rotatably connected with extension plate 18, when support rod 16 bends, it can drive the slide pole 17 and extension plate 18 here to extend outward.

[0034] The rear end of the slide rod 17 is rotationally connected with a slide column 19, the bottom end of the slide column 19 is fixedly connected with a limiting plate 20, the slide column 19 can ensure the stability of the extension plate 18 when the extension plate 18 expands, the bottom end of the bottom column 12 is rotationally connected with a bottom block 21, the outer portion of the extension plate 18 is slidably connected with the inner wall of the bottom block 21, the outer portion of the slide column 19 is slidably connected with the inner wall of the bottom block 21, the bottom block 21 is the part in contact with the wellbore, and the effective range of support can be increased after the extension plate 18 is extended, so that the stability of the packer is improved, the outer top end of the bottom column 12 is fixedly connected with a support ring 22, the outer portion of the bottom column 12 is sleeved with a spring two 23, one end of the spring two 23 is fixedly connected with one side of the support ring 22, and the other end of the spring two 23 is fixedly connected with one side of the sleeve ring 13, and the spring two 23 can ensure the stability of the slide block 14 when the slide block 14 is clamped with the bottom column 12.

[0035] Working principle: first, the pipe body 1 (i.e. the packer body) is installed into the wellbore. At this time, the support ring 2 is tightly attached to the outer portion of the pipe body 1, providing preliminary stability. Then, the support ring 2 is further fixed by the support plate 3 in the connecting assembly, ensuring the stability of the pipe body 1. When it is necessary to adjust the support height of the pipe body 1 to adapt to different diameters of the wellbore, the operator can press the clamping column 5 to make it disengage from the clamping state with the outer column 9. Then, the inner column 4 is pulled, and since the inner column 4 is fixedly connected with the bottom end of the support plate 3, the height position of the pipe body 1 is adjusted, and then the hand is released, so that the clamping column 5 and the outer column 9 are kept in the clamping state under the stretching of the spring one 7 supported by the limiting block 6; at the same time, the arrangement of the rotating block one 10 and the rotating block two 11 makes the device not only adaptable to different diameters, but also adaptable to some special angle wellbores, further improving the practicability.

[0036] When it is necessary to increase the support range to improve the stability of the packer, the sleeve ring 13 is pulled down, the side block 15 is lowered and the support rod 16 is squeezed, causing the support rod 16 to bend. This bending action is transmitted to the extension plate 18 through the slide rod 17, so that the extension plate 18 expands outward, and then the sleeve ring 13 is rotated, so that the slide block 14 is clamped with the bottom column 12, and the spring two 23 stretched by the support ring 22 and the sleeve ring 13 will keep the pulling force, so as to ensure the clamping stability of the slide block 14 and the bottom column 12, thereby expanding the effective range of support and enhancing the stability of the packer.

[0037] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.

Claims

1. A support device for petroleum drilling and production packers, comprising a tubular body (1), characterized in that: The outer part of the pipe body (1) is fixedly connected with a supporting ring (2), both sides of the supporting ring (2) are fixedly connected with a connecting assembly for fixing, the bottom end of the connecting assembly away from the pipe body (1) is fixedly connected with a telescopic assembly for adjusting the supporting height of the pipe body (1), the bottom end of the telescopic assembly is rotatably connected with a rotating block two (11), the bottom end of the rotating block two (11) is fixedly connected with a bottom column (12), the outer part of the bottom column (12) is provided with a thimble (13), the inner side of the thimble (13) is fixedly connected with a plurality of sliding blocks (14), the outer side of the thimble (13) is fixedly connected with a plurality of side blocks (15), the outer part of the side block (15) is rotatably connected with two supporting rods (16), the other end of the two supporting rods (16) is rotatably connected with a sliding rod (17), the outer part of the sliding rod (17) is rotatably connected with an extension plate (18), and the bottom end of the bottom column (12) is rotatably connected with a bottom block (21).

2. The support device for a petroleum drilling and production packer according to claim 1, characterized in that: The connecting assembly comprises a supporting plate (3), and the inner side of the supporting plate (3) is fixedly connected to the outer part of the supporting ring (2).

3. The support device for a petroleum drilling and production packer according to claim 2, characterized in that: The telescopic assembly comprises an inner column (4), the top end of the inner column (4) is fixedly connected to the bottom end of the supporting plate (3), the inner wall of the inner column (4) is slidably connected with a clamping column (5), the right side of the clamping column (5) is fixedly connected with a limiting block (6), one end of the limiting block (6) is fixedly connected with a spring one (7), the other end of the spring one (7) is fixedly connected to the inner wall of the inner column (4), the bottom end of the inner column (4) is fixedly connected with a limiting disc (8), the outer part of the inner column (4) is slidably connected with an outer column (9), and the bottom end of the outer column (9) is fixedly connected with a rotating block one (10).

4. The support device for a petroleum drilling and production packer of claim 1, wherein: The rear end of the sliding rod (17) is rotatably connected with a sliding column (19), and the bottom end of the sliding column (19) is fixedly connected with a limiting plate (20).

5. The support device for a petroleum drilling and production packer of claim 1, wherein: The outer top end of the bottom column (12) is fixedly connected with a supporting ring (22), and the outer part of the bottom column (12) is sleeved with a spring two (23).

6. The support device for a petroleum drilling and production packer of claim 5, wherein: One end of the spring two (23) is fixedly connected to one side of the supporting ring (22), and the other end of the spring two (23) is fixedly connected to one side of the thimble (13).

7. The support device for a petroleum drilling and production packer of claim 3, wherein: The outer part of the limiting block (6) is slidably connected to the inner wall of the inner column (4), and the outer part of the limiting disc (8) is slidably connected to the inner wall of the outer column (9).

8. The support device for a petroleum drilling and production packer of claim 4, wherein: The outer part of the extension plate (18) is slidably connected to the inner wall of the bottom block (21), and the outer part of the sliding column (19) is slidably connected to the inner wall of the bottom block (21).

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