Drilling liner cementing tool with packer

Abstract

The utility model relates to the technical field of drilling liner cementing tools, and discloses a drilling liner cementing tool with a packer, which comprises a U-shaped frame, a circular hole is formed in the middle of the top end of the U-shaped frame, a column body cementing well is clamped on the inner side of the circular hole, T-shaped blocks are fixedly connected to the left side and the right side of the interior of the U-shaped frame, and the T-shaped blocks are connected with the packer. And long grooves are formed in the middles of the inward sides of the T-shaped blocks correspondingly, double-head motors are fixedly connected to the middles of the long grooves, threaded rods are fixedly connected to the output ends of the double-head motors, and second rotating shafts are in threaded connection to the outer walls of the threaded rods correspondingly. According to the well cementation tool, the bottom end matched with the column body for well cementation is clamped with the inner side of the circular hole, the first rotating shaft is matched with the moving plate to move the anti-slip strip to be attached to the column body for well cementation, and therefore the well cementation tool can be effectively and stably operated after being used, the situation that the well cementation tool shakes in the moving process is avoided, and the service life of the well cementation tool is prolonged. And meanwhile, certain safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liner cementing tools, in particular to a liner cementing tool with a packer. Background Art

[0002] Liner cementing tools with packers are one of the key equipment used in the cementing process of oil or gas wells. They are designed to ensure the safety and effectiveness of the wellbore when fixing the liner. The main function of the packer is to securely fix the liner (also called casing) in the wellbore during the cementing process and seal the wellbore to prevent backflow of well fluid or gas when necessary. They can also be used to control pressure and flow and allow fracturing or other operations.

[0003] Existing liner cementing tools are generally composed of a packer, a spring, a sealing element, a rubber gasket and an operating mechanism. However, before the liner cementing tool is used, it needs to be transported to the installation site. Usually, the existing liner cementing tool lacks a fixed structure during transportation, which makes it easy to shake and slip, and there is a certain safety hazard. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a tail pipe cementing tool with a packer, which aims to improve the existing technology. However, before the tail pipe cementing tool is used, it needs to be transported to the installation site. Usually, the existing tail pipe cementing tool lacks a fixed structure during transportation, which makes it easy to shake and slip, and there are certain safety issues.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tail pipe cementing tool with a packer, comprising a U-shaped frame, a circular hole is opened in the middle of the top of the U-shaped frame, a column cementing is engaged with the inner side of the circular hole, the left and right sides of the inside of the U-shaped frame are fixedly connected with T-shaped blocks, the middle part of the inner side of the T-shaped block is opened with an elongated groove, the middle part of the elongated groove is fixedly connected with a double-headed motor, the output end of the double-headed motor is fixedly connected with a threaded rod, the outer wall of the threaded rod is threadedly connected with a second rotating shaft, the middle part of the outer wall of the second rotating shaft is rotatably connected with an inclined plate, the other end of the inclined plate is rotatably connected with a first rotating shaft, movable plates are fixedly connected between adjacent parts of the first rotating shaft, and the outer wall of the column cementing is provided with a protective mechanism.

[0006] As a further description of the above technical solution:

[0007] The protective mechanism includes a C-shaped protective strip, the inner side of which is fixedly connected to the outer wall of the column cementing, the outer wall of the C-shaped protective strip is fixedly connected to a spring, the other end of the spring is fixedly connected to a C-shaped plate, the top of the column cementing is fixedly connected to a square rubber, and the tops of multiple square rubbers are fixedly connected to round steel blocks.

[0008] As a further description of the above technical solution:

[0009] The left side of the outer wall of the column cementing is fixedly connected with a switch valve, and the right side of the outer wall of the column cementing is fixedly connected with a U-shaped column.

[0010] As a further description of the above technical solution:

[0011] A protective ring is fixedly connected to the inner bottom end of the circular hole, and the top end of the protective ring fits with the bottom end of the column cementing.

[0012] As a further description of the above technical solution:

[0013] The bottom end of the U-shaped frame is fixedly connected with an anti-skid pad.

[0014] As a further description of the above technical solution:

[0015] The inward side of the movable plate is fixedly connected with an anti-slip strip, and the outer wall of the anti-slip strip is in contact with the outer wall of the column cementing.

[0016] As a further description of the above technical solution:

[0017] The top outer wall of the column cementing is fixedly connected with bolts all around.

[0018] As a further description of the above technical solution:

[0019] One side of the second rotating shaft is slidably connected to the inner side of the elongated slot.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the bottom end of the column cementing cooperates with the inner side of the circular hole, and the middle part of the elongated groove is fixedly connected with the double-headed motor shaft 2 and the inclined plate for relative movement. The anti-slip strip can be moved to fit the column cementing through the shaft 1 cooperating with the moving plate, thereby achieving effective stabilization of the cementing tool after use, avoiding shaking during the movement, and increasing a certain degree of safety.

[0022] 2. In the utility model, the square rubber and the round steel block are fixed on the top of the column cementing, so as to reduce the impact force generated by the outside world, and then the spring and the C-shaped plate are used to buffer the impact generated by the outside world, thereby realizing good protection of the column cementing, effectively reducing the damage caused by the external impact force, and increasing the service life of the column cementing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A side perspective view of a U-shaped frame of a liner cementing tool with a packer proposed by the utility model;

[0024] Figure 2 This is a U-shaped frame structure diagram of a liner cementing tool with a packer proposed by the utility model;

[0025] Figure 3 This is a diagram showing the column cementing structure of a tail pipe cementing tool with a packer proposed in the utility model.

[0026] Legend:

[0027] 1. U-shaped frame; 2. Protection mechanism; 201. C-shaped plate; 202. C-shaped protection strip; 203. Spring; 204. Square rubber; 205. Round steel block; 3. Anti-skid pad; 4. Switch valve; 5. Bolt; 6. Column cementing; 7. U-shaped column; 8. Round hole; 9. Protection ring; 10. Anti-skid strip; 11. Moving plate; 12. Rotating shaft one; 13. Inclined plate; 14. Threaded rod; 15. Double-headed motor; 16. Long slot; 17. T-shaped block; 18. Rotating shaft two. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Please refer to the attached Figure 1 - Attachment Figure 2The utility model provides an embodiment: a tail pipe cementing tool with a packer, comprising a U-shaped frame 1, a circular hole 8 is opened in the middle of the top of the U-shaped frame 1, a column cementing 6 is engaged with the inner side of the circular hole 8, a T-shaped block 17 is fixedly connected to the left and right sides of the inside of the U-shaped frame 1, a long groove 16 is opened in the middle of the inner side of the T-shaped block 17, a double-headed motor 15 is fixedly connected to the middle of the long groove 16, a threaded rod 14 is fixedly connected to the output end of the double-headed motor 15, a rotating shaft 2 18 is threadedly connected to the outer wall of the threaded rod 14, an inclined plate 13 is rotatably connected to the middle of the outer wall of the rotating shaft 2 18, the other end of the inclined plate 13 is rotatably connected to the rotating shaft 12, and a movable plate 11 is fixedly connected between the adjacent rotating shafts 12, a protective mechanism 2 is provided on the outer wall of the column cementing 6, a switch valve 4 is fixedly connected to the left side of the outer wall of the column cementing 6, and a U-shaped column 7 is fixedly connected to the right side of the outer wall of the column cementing 6;

[0030] Specifically, the U-shaped frame 1 is used as a supporting member, and the left and right sides of the inside thereof are firmly connected to T-shaped blocks 17. These T-shaped blocks 17 are provided with an elongated slot 16 at the middle position of one side facing the inside of the U-shaped frame 1. The elongated slot 16 is designed to accommodate and fix the double-headed motor 15. The threaded rod 14 is a rod-shaped object with threads, which is connected to the inner wall of the second rotating shaft 18 through threads. This threaded connection allows the second rotating shaft 18 to move along the axial direction of the threaded rod 14, and the inclined plate 13 can move around the second rotating shaft 18 and the first rotating shaft 12 under the drive of the double-headed motor 15.

[0031] Please refer to the attached Figure 3 The protection mechanism 2 includes a C-shaped protection strip 202, the inner side of which is fixedly connected to the outer wall of the column cementing 6, the outer wall of the C-shaped protection strip 202 is fixedly connected to a spring 203, the other end of the spring 203 is fixedly connected to a C-shaped plate 201, the top of the column cementing 6 is fixedly connected to a square rubber 204, the tops of the plurality of square rubbers 204 are fixedly connected to a circular steel block 205, the inner bottom end of the circular hole 8 is fixedly connected to a protection ring 9, the top of the protection ring 9 fits with the bottom end of the column cementing 6;

[0032] Specifically, the design of the C-shaped protection strip 202 takes into account the functional enhancement of its outer wall. Specifically, a series of springs 203 are evenly installed on the outer wall of the C-shaped protection strip 202. The function of these springs 203 is to provide necessary elastic support and buffering capacity. The other ends of these springs 203 are firmly connected to the C-shaped plate 201. The design and position of the C-shaped plate 201 enhance the stability of the entire structure. These square rubbers 204 can not only provide additional buffering effects, but also absorb part of the force when the structure is impacted, thereby reducing damage to the overall structure.

[0033] Please refer to the attached Figure 1 - Attachment Figure 3 The bottom end of the U-shaped frame 1 is fixedly connected with an anti-skid pad 3, and the inner side of the movable plate 11 is fixedly connected with an anti-skid strip 10, the outer wall of the anti-skid strip 10 fits with the outer wall of the column cementing 6, and the top outer wall of the column cementing 6 is fixedly connected with bolts 5, and one side of the rotating shaft 18 is slidably connected with the inner side of the elongated groove 16;

[0034] Specifically, the requirements of safety and stability are also taken into consideration through the design of the moving plate 11. The inward side of the moving plate 11, that is, the side facing the center of the U-shaped frame 1, is evenly fixedly connected with anti-slip strips 10. These anti-slip strips 10 are designed to increase the contact friction with the column cementing 6, thereby preventing the moving plate 11 from accidentally sliding during use.

[0035] Working principle: when the cementing tool is used and needs to be transported, the bottom end of the column cementing 6 is engaged with the inner side of the circular hole 8, and then a long groove 16 is opened on the inner side of the T-shaped block 17, and a double-headed motor 15 is fixedly connected through the middle of the long groove 16, so that it is started to rotate the threaded rod 14, thereby driving the second rotating shaft 18 threadedly connected on the outer wall and the inclined plate 13 to move relative to each other, so that the distance between the inclined plates 13 is gradually reduced, and finally the anti-slip strip 10 is moved to the outer wall of the column cementing 6 through the rotating shaft 12 and the moving plate 11 to fit, thereby achieving effective The cementing tool is operated stably after use to avoid shaking during movement, which increases a certain degree of safety. Then, the square rubber 204 and the round steel block 205 are installed on the top of the column cementing 6, thereby reducing the impact force generated by the outside world and providing good protection. Then, the C-shaped protection strip 202 is fixed to the outer wall of the column cementing 6, and the spring 203 and the C-shaped plate 201 are used to buffer the impact generated by the outside world, thereby achieving good protection for the column cementing 6, effectively reducing damage caused by external impact forces, and increasing the service life of the column cementing 6.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liner cementing tool with a packer, comprising a U-shaped frame (1), characterized in that: A circular hole (8) is provided in the middle of the top of the U-shaped frame (1), and a column cementing (6) is engaged with the inner side of the circular hole (8). T-shaped blocks (17) are fixedly connected to the left and right sides of the interior of the U-shaped frame (1). An elongated groove (16) is provided in the middle of the inner side of the T-shaped block (17). A double-headed motor (15) is fixedly connected to the middle of the elongated groove (16). A threaded rod (14) is fixedly connected to the output end of the double-headed motor (15). The outer wall of the threaded rod (14) is threadedly connected to a second rotating shaft (18). An inclined plate (13) is rotatably connected to the middle of the outer wall of the second rotating shaft (18). The other end of the inclined plate (13) is rotatably connected to a first rotating shaft (12). A movable plate (11) is fixedly connected between adjacent rotating shafts (12). A protective mechanism (2) is provided on the outer wall of the column cementing (6).

2. A liner cementing tool with a packer according to claim 1, characterized in that: The protection mechanism (2) comprises a C-shaped protection strip (202), the inner side of the C-shaped protection strip (202) is fixedly connected to the outer wall of the column cementing (6), the outer wall of the C-shaped protection strip (202) is fixedly connected to a spring (203), the other end of the spring (203) is fixedly connected to a C-shaped plate (201), the top end of the column cementing (6) is fixedly connected to a square rubber (204), and the top ends of a plurality of the square rubbers (204) are fixedly connected to a circular steel block (205).

3. The liner cementing tool with a packer according to claim 1, characterized in that: The left side of the outer wall of the columnar cementing (6) is fixedly connected to a switch valve (4), and the right side of the outer wall of the columnar cementing (6) is fixedly connected to a U-shaped column (7).

4. The liner cementing tool with a packer according to claim 1, characterized in that: A protective ring (9) is fixedly connected to the inner bottom end of the circular hole (8), and the top end of the protective ring (9) fits with the bottom end of the column cementing (6).

5. The liner cementing tool with a packer according to claim 1, characterized in that: The bottom end of the U-shaped frame (1) is fixedly connected with an anti-slip pad (3).

6. The liner cementing tool with a packer according to claim 1, characterized in that: The inward side of the movable plate (11) is fixedly connected with an anti-slip strip (10), and the outer wall of the anti-slip strip (10) is in contact with the outer wall of the column cementing (6).

7. The liner cementing tool with a packer according to claim 1, characterized in that: Bolts (5) are fixedly connected around the outer wall of the top end of the column cementing (6).

8. The liner cementing tool with a packer according to claim 1, characterized in that: One side of the second rotating shaft (18) is slidably connected to the inner side of the elongated slot (16).

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