Casing expansion pasting device for oil field operation

Abstract

The utility model is applicable to the technical field of oil field operation, and discloses a casing expansion sticking device for oil field operation, which is characterized in that the side edge of a hollow pipe is fixedly communicated with a guide pipe, one side of the top of the hollow pipe far away from the guide pipe is vertically and rotatably provided with a rotating rod, and the bottom surface of the rotating rod is fixedly sleeved with a transmission bevel gear; a rotating screw rod is transversely and rotationally mounted in the hollow pipe, a follow-up bevel gear is fixedly connected to the side, away from the guide pipe, of the rotating screw rod in a sleeving mode, the transmission bevel gear is meshed with the follow-up bevel gear, a transmission sleeve is movably connected to the outer side surface of the rotating screw rod in a sleeving mode, and connecting blocks are fixedly mounted on the bottom surface of the outer side of the transmission sleeve; a movable rod is fixedly mounted on the bottom surface of the connecting block and slidably inserted into the side edge of the guide pipe. According to the technical scheme, the overall length of the movable rod and the overall length of the hollow pipe can be adjusted in a suitable mode, and therefore an operator can conveniently adjust the repairing position of a patching material placed on the surface of the bearing plate from the outer side.

Description

Technical Field

[0001] The utility model is applicable to the technical field of oil field operation, in particular to a casing expansion and pasting device for oil field operation. Background Art

[0002] At present, in the petroleum industry, as the time of oil field development is extended, the casing will be seriously damaged in the middle and late stages of oil field exploitation. In order to extend the exploitation time of the oil well, casing repair is generally required.

[0003] However, nowadays, when patching and repairing the inner wall of the casing, a corresponding rod-shaped auxiliary mechanism is often used to insert the patching piece into the casing, and different auxiliary rods are selected for different casings. When using them, such a patching auxiliary rod cannot be quickly and conveniently adjusted according to the actual situation, resulting in insufficient overall applicability and affecting the efficiency of subsequent patching and repairing. Therefore, we propose a casing expansion device for oilfield operations. Utility Model Content

[0004] The main purpose of the utility model is to provide a casing expansion device for oil field operation, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A casing expansion device for oilfield operation, comprising a hollow tube, a guide tube is fixedly connected to the side of the hollow tube, and a rotating rod is vertically rotatably installed on the side of the top of the hollow tube away from the guide tube;

[0007] The bottom surface of the rotating rod is fixedly sleeved with a transmission bevel gear, a rotating screw is installed in the hollow tube for transverse rotation, a side of the rotating screw away from the guide tube is fixedly sleeved with a follower bevel gear, and the transmission bevel gear is meshed with the follower bevel gear;

[0008] A transmission sleeve is movably sleeved on the outer surface of the rotating screw rod, a connecting block is fixedly installed on the outer bottom surface of the transmission sleeve, a movable rod is fixedly installed on the bottom surface of the connecting block, and the movable rod is slidably inserted into the side of the guide tube.

[0009] By adopting the above technical solution, the overall length of the movable rod and the hollow tube can be adjusted adaptably through the meshing transmission action of the transmission bevel gear and the follower bevel gear, and the rotation transmission action of the rotating screw on the transmission sleeve. The operator can conveniently adjust the repair position of the patch material placed on the surface of the carrier plate from the outside.

[0010] As an optional solution to the technical solution of the present application, fixed sleeves are fixedly sleeved on the surfaces of both ends of the movable rod away from the rotating rod, a fixed block is fixedly installed on the top surface of each fixed sleeve, and a bearing plate is fixedly installed between the tops of the two groups of fixed blocks.

[0011] By adopting the above technical solution, the support and placement of the repair material is guaranteed by the structural setting of the support plate.

[0012] As an optional solution of the technical solution of the present application, a guide groove is opened at the middle end of the side of the guide tube, and the movable rod passes through and is slidably inserted into the guide groove.

[0013] By adopting the above technical solution, the adjustment transmission stability of the entire device is ensured by the guiding sliding action of the guide groove on the movable rod.

[0014] As an optional solution of the technical solution of the present application, a connecting sleeve is fixedly sleeved on the top surface of the rotating rod, and the connecting sleeve is located outside the hollow tube. A push rod is laterally fixedly installed on the outer surface of the connecting sleeve, and the push rod is rotatably located outside the hollow tube.

[0015] By adopting the above technical solution, the operator can drive and adjust the rotating rod conveniently through the structural function of the push rod.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of the present application is a casing expansion device for oilfield operations. Through the meshing transmission action of the transmission bevel gear and the follower bevel gear, the operator only needs to push the rotating rod from the side of the hollow tube to drive the transmission bevel gear to rotate, thereby driving the rotating screw rod inside the hollow tube to rotate synchronously. Combined with the rotation transmission action of the rotating screw rod on the transmission sleeve, the transmission sleeve can be horizontally moved inside the hollow tube, and then under the transmission action of the connecting block, the two groups of movable rods can be synchronously moved horizontally to provide corresponding horizontal driving force to the bearing plate, so that the overall length of the movable rod and the hollow tube can be adjusted for adaptability, and the operator can conveniently adjust the repair position of the patch material placed on the surface of the bearing plate from the outside.

[0018] 2. The technical solution of the present application is a casing expansion device for oilfield operations. By slidingly inserting a movable rod into a guide groove and combining the guiding sliding action of the guide groove on the movable rod, when the rotating screw rod rotates, the transmission sleeve will not rotate axially inside the hollow tube, thereby ensuring the rationality of the adjustment transmission of the movable rod and the horizontal position of the bearing plate, and further improving the adjustment applicability of the entire mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a casing expansion and pasting device for oil field operations according to the utility model;

[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of a hollow tube of a casing expansion and pasting device for oil field operations of the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the side cross-sectional structure of a guide tube of a casing expansion and pasting device for oil field operations.

[0022] Figure numerals: 1. hollow tube; 11. guide tube; 2. rotating rod; 21. transmission bevel gear; 22. rotating screw rod; 23. follower bevel gear; 24. transmission sleeve; 25. connecting block; 26. movable rod; 27. fixed sleeve; 28. fixed block; 29. ​​bearing plate; 3. connecting sleeve; 31. push rod; 4. guide groove. DETAILED DESCRIPTION

[0023] like Figure 1-3 As shown, the utility model provides a technical solution: a casing expansion device for oil field operations, a rotating rod 2 is vertically rotatably installed on the side of the top of the hollow tube 1 away from the guide tube 11, a connecting sleeve 3 is fixedly sleeved on the top surface of the rotating rod 2, and the connecting sleeve 3 is located outside the hollow tube 1, and a hand push rod 31 is laterally fixedly installed on the outer surface of the connecting sleeve 3, and the hand push rod 31 is rotatably located outside the hollow tube 1.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown in FIG. 1 , a guide tube 11 is fixedly connected to the side of the hollow tube 1 , a guide groove 4 is opened at the middle end of the side of the guide tube 11 , and a movable rod 26 passes through and is slidably inserted into the inside of the guide groove 4 .

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), the movable rod 26 is fixedly sleeved with fixed sleeves 27 on both ends of the surface of the side away from the rotating rod 2, and a fixed block 28 is fixedly installed on the top surface of each fixed sleeve 27, and a bearing plate 29 is fixedly installed between the tops of the two groups of fixed blocks 28.

[0026] In this technical solution (through Figure 1 , Figure 2 and Figure 3As shown), a transmission bevel gear 21 is fixedly sleeved on the bottom surface of the rotating rod 2, a rotating screw 22 is installed in the hollow tube 1 for transverse rotation, a follower bevel gear 23 is fixedly sleeved on the side of the rotating screw 22 away from the guide tube 11, and the transmission bevel gear 21 is meshed with the follower bevel gear 23, a transmission sleeve 24 is movably sleeved on the outer surface of the rotating screw 22, a connecting block 25 is fixedly installed on the outer bottom surface of the transmission sleeve 24, a movable rod 26 is fixedly installed on the bottom surface of the connecting block 25, and the movable rod 26 is slidably inserted into the side of the guide tube 11.

[0027] During operation, when the inner wall of the casing is to be patched and repaired, the required repair raw materials are placed on the surface of the supporting plate 29, and then the supporting plate 29 and the side of the movable rod 26 are inserted into the inside of the casing. Then, the operator holds the hand push rod 31 and pushes the rotating rod 2, so that the rotating rod 2 can drive the transmission bevel gear 21 to rotate, and then combined with the meshing transmission action of the transmission bevel gear 21 and the follower bevel gear 23, it can drive the rotating screw rod 22 to rotate synchronously inside the hollow tube 1, and combined with the rotation transmission action of the rotating screw rod 22 on the transmission sleeve 24, it can provide the movable rod 26 with a corresponding horizontal driving force, so that the movable rod 26 can move horizontally inside the guide groove 4 and the guide tube 11, driving the supporting plate 29 and the repair material placed on its surface to move synchronously inside the casing, so that the repair material can be in the position to be repaired inside the casing, and then it is repaired by fitting.

Claims

1. A casing expansion device for oilfield operations, comprising a hollow tube (1), characterized in that: The side of the hollow tube (1) is fixedly connected to a guide tube (11), and a rotating rod (2) is vertically rotatably mounted on a side of the top of the hollow tube (1) away from the guide tube (11); A transmission bevel gear (21) is fixedly sleeved on the bottom surface of the rotating rod (2), a rotating screw rod (22) is installed inside the hollow tube (1) for transverse rotation, a follower bevel gear (23) is fixedly sleeved on the side of the rotating screw rod (22) away from the guide tube (11), and the transmission bevel gear (21) is meshed with the follower bevel gear (23); The outer surface of the rotating screw rod (22) is movably sleeved with a transmission sleeve (24), the outer bottom surface of the transmission sleeve (24) is fixedly mounted with a connection block (25), the bottom surface of the connection block (25) is fixedly mounted with a movable rod (26), and the movable rod (26) is slidably inserted into the inside of the side of the guide tube (11).

2. The casing expansion device for oilfield operations according to claim 1, characterized in that: The surfaces of both ends of the movable rod (26) on one side away from the rotating rod (2) are fixedly sleeved with fixed sleeves (27), and a fixed block (28) is fixedly installed on the top surface of each fixed sleeve (27), and a bearing plate (29) is fixedly installed between the tops of two groups of fixed blocks (28).

3. The casing expansion device for oilfield operations according to claim 1, characterized in that: A guide groove (4) is provided at the middle end of the side of the guide tube (11), and a movable rod (26) penetrates and is slidably inserted into the guide groove (4).

4. The casing expansion device for oilfield operations according to claim 1, characterized in that: A connecting sleeve (3) is fixedly sleeved on the top surface of the rotating rod (2), and the connecting sleeve (3) is located outside the hollow tube (1).

5. The casing expansion device for oil field operation according to claim 4, characterized in that: A push rod (31) is fixedly mounted laterally on the outer surface of the connecting sleeve (3), and the push rod (31) is rotatably located outside the hollow tube (1).

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