Windowing milling cone with windowing and trial drilling integrated function
By designing a combination structure of stop bars, slots and welding grooves in the window milling cone, combined with the use of high-strength carbide and secondary metal materials, the existing window milling cone has solved the problems of high cost and unstable rotation, and achieved stable and efficient window opening effect and cost reduction.
Patent Information
- Application Number
- CN202421717647.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing window milling cones have high material costs and complex structures, resulting in high production costs, and are prone to poor window opening effects due to unstable rotation during use.
A window milling cone with integrated window drilling and drilling function is designed. By setting a stop bar, a first slot and a second slot between the milling cone head and the upper joint, combined with the design of the welding groove, a combination of high-strength carbide and secondary metal material is used to ensure stable structural connections and reduce material costs.
It realizes that the material cost and production cost are reduced without affecting the window opening strength. At the same time, through the design of stop bars and welding grooves, the rotation instability between the milling cone head and the upper joint is avoided, and the stability and efficiency of the window opening work are ensured.
Smart Images
Figure CN222759763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petroleum drilling, in particular to a window opening milling cone with the integrated function of window opening and trial drilling. Background Art
[0002] The window milling cone is a tool for opening windows in casing. Its characteristics are: large guide angle, less grinding of guides, not easy to form shoulders, saving construction time, high efficiency, flat and smooth windows, and easy passage of drill strings. It is an ideal side drilling tool.
[0003] Since window milling cones need to cut other objects and maintain a long service life, they are usually made of alloys with higher hardness. Some window milling cones will avoid heat treatment or electroplating to further increase durability. Otherwise, the window milling cones are easily worn out. However, the entire window milling cone is made of high-hardness alloy, which is more expensive. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide a window opening milling cone with integrated functions of window opening and trial drilling, so as to solve the technical problems mentioned in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a window opening milling cone with integrated functions of window opening and trial drilling, comprising a milling cone head, a first slot is opened inside the milling cone head, an upper joint passes through the top of the milling cone head, and a second slot is opened on the outer surface of the upper joint, a stop strip is arranged between the first slot and the second slot, and welding grooves are opened on one side of the bottom of the upper joint and one side of the top of the milling cone head.
[0006] By adopting the above technical solution, the milling cone head can be made of high-strength cemented carbide, such as tungsten steel, and the material of the upper joint can be made of inferior metal, such as high-speed steel. Without affecting the window opening strength, it can save materials and reduce costs. At the same time, the relative rotation between the milling cone head and the upper joint is prevented from affecting the window opening work by the anti-rotation strip, the first slot and the second slot. The two sloped welding grooves form a V shape to increase the welding surface, so that the welding between the milling cone head and the upper joint is stable and prevented from falling off.
[0007] Furthermore, the anti-rotation bar is adapted to the first slot and the second slot.
[0008] By adopting the above technical solution, the staff applies fixing glue on the surfaces of the milling cone head, the first slot, the inside of the second slot, the upper joint, and the anti-rotation strip. Then the staff inserts the anti-rotation strip into the first slot and the upper joint into the milling cone head. At the same time, the anti-rotation strip also enters the second slot. After the fixing glue solidifies, the milling cone head, the anti-rotation strip and the upper joint are adhered and fixed.
[0009] Furthermore, the anti-rotation bar, the first slot and the second slot are each provided in plurality, and the plurality of anti-rotation bars, the first slot and the second slot are distributed in a ring array.
[0010] By adopting the above technical solution, the relative rotation between the milling cone head and the upper joint to affect the window opening work is prevented by the anti-rotation strip, the first slot and the second slot.
[0011] Furthermore, the two welding grooves are both sloped.
[0012] By adopting the above technical solution, the staff further fixes the milling cone head and the upper joint by welding in the welding groove, and the two sloped welding grooves form a V shape to increase the welding surface, thereby making the welding of the milling cone head and the upper joint stable and avoiding falling off.
[0013] Furthermore, the cross section of the milling cone head is in a "concave" shape, and the cross section of the upper joint is in a "convex" shape.
[0014] By adopting the above technical solution, the staff applies fixing glue on the inside of the milling cone head and the surface of the upper joint, and then the staff inserts the anti-rotation strip into the first slot to fix it.
[0015] Furthermore, a water groove is provided on the outer surface of the milling cone head, and cutting teeth are installed on the bottom of the milling cone head.
[0016] By adopting the above technical solution, the rotation of the milling cone head drives the cutting teeth to rotate, thereby facilitating the milling and window opening of the casing, while at the same time facilitating the circulation of debris and drilling fluid through the water trough.
[0017] Furthermore, a superhard alloy and a diamond composite sheet are respectively arranged on one side of the bottom of the milling cone head.
[0018] By adopting the above technical solution, super-hard crushed alloy cooperates with cutting teeth to mill the casing for window opening operation, and the diamond composite piece can drill into the formation to achieve the effect of test drilling.
[0019] Furthermore, the cutting teeth, superhard alloy chips and diamond composite sheets are provided in plurality, and the plurality of cutting teeth, superhard alloy chips and diamond composite sheets are distributed in a ring array.
[0020] By adopting the above technical solution, the number of cutting teeth, superhard alloy chips and diamond composite sheets is increased, thereby increasing the efficiency of cutting and test drilling.
[0021] In summary, the utility model mainly has the following beneficial effects:
[0022] The utility model arranges the milling cone head, the upper joint, the welding groove, the anti-rotation strip, the first slot and the second slot. The milling cone head can be made of high-strength hard alloy, such as tungsten steel, and the material of the upper joint can be made of inferior metal, such as high-speed steel. Without affecting the window opening strength, it can save materials and reduce costs. At the same time, the anti-rotation strip, the first slot and the second slot can prevent the relative rotation between the milling cone head and the upper joint from affecting the window opening work, and the two sloped welding grooves form a V shape to increase the welding surface, so that the milling cone head and the upper joint are stably welded to avoid falling off. It is made of two materials, the structural connection is stable and the material cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the utility model;
[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0025] Figure 3 It is a schematic diagram of the explosion structure of the utility model;
[0026] Figure 4 It is a schematic diagram of the structure of the milling cone head of the utility model when viewed from above.
[0027] In the figure: 1, milling cone head; 2, water tank; 3, cutting teeth; 4, superhard crushed alloy; 5, diamond composite plate; 6, upper joint; 7, welding groove; 8, anti-rotation strip; 9, first slot; 10, second slot. 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0029] The following describes an embodiment of the utility model based on its overall structure.
[0030] Embodiment 1:
[0031] A window milling cone with integrated window opening and trial drilling functions, such as Figure 1-Figure 3As shown, it includes a milling cone head 1, a first slot 9 is opened inside the milling cone head 1, an upper joint 6 is passed through the top of the milling cone head 1, the cross section of the milling cone head 1 is in a "concave" shape, the cross section of the upper joint 6 is in a "convex" shape, a second slot 10 is opened on the outer surface of the upper joint 6, and a stop bar 8 is arranged between the first slot 9 and the second slot 10. The stop bar 8 is inserted into the first slot 9, and the upper joint 6 is inserted into the milling cone head 1, and the stop bar 8 also enters the second slot 10; the stop bar 8 is adapted to the first slot 9 and the second slot 10, and the stop bar 8 is also inserted into the second slot 10; the stop bar 8 is adapted to the first slot 9 and the second slot 10, and the stop bar 8 is There are multiple rotation bars 8, first slots 9 and second slots 10, and the multiple anti-rotation bars 8, first slots 9 and second slots 10 are distributed in a circular array. The anti-rotation bars 8, first slots 9 and second slots 10 prevent the relative rotation between the milling cone head 1 and the upper joint 6 from affecting the window opening work; welding grooves 7 are provided on one side of the bottom of the upper joint 6 and one side of the top of the milling cone head 1, and the two welding grooves 7 are sloped. The two sloped welding grooves 7 form a V shape, which increases the welding surface, so that the welding between the milling cone head 1 and the upper joint 6 is stable and prevents it from falling off.
[0032] See also Figure 1-Figure 4 In the above embodiment, a water trough 2 is provided on the outer surface of the milling cone head 1, and cutting teeth 3 are installed at the bottom of the milling cone head 1. The rotation of the milling cone head 1 drives the cutting teeth 3 to rotate, thereby facilitating the milling of the casing to open windows, and at the same time, the water trough 2 facilitates the circulation of debris and drilling fluid.
[0033] Embodiment 2:
[0034] On the basis of the above-mentioned embodiment 1, in order to achieve the two-in-one effect of window opening and test drilling, the following settings are now adopted.
[0035] See also Figure 4 In the above embodiment, a superhard crushed alloy 4 and a diamond composite sheet 5 are respectively arranged on one side of the bottom of the milling cone head 1, and a plurality of cutting teeth 3, superhard crushed alloy 4 and diamond composite sheets 5 are arranged, and the plurality of cutting teeth 3, superhard crushed alloy 4 and diamond composite sheets 5 are distributed in a ring array. The superhard crushed alloy 4 cooperates with the cutting teeth 3 to mill the casing for window opening operation, and the diamond composite sheet 5 can drill into the formation to achieve the effect of test drilling.
[0036] The implementation principle of the utility model is as follows: first, the staff manufactures the milling cone head 1, the upper joint 6, the welding groove 7, the anti-rotation strip 8, the first slot 9 and the second slot 10 through a mold. The milling cone head 1 can be made of high-strength hard alloy, such as tungsten steel, and the upper joint 6 and the anti-rotation strip 8 can be made of inferior metals, such as high-speed steel. Although the strength is lower than that of the milling cone head 1, it can save materials and reduce costs without affecting the window opening strength. After that, the staff cuts and grinds the milling cone head 1, the upper joint 6, the welding groove 7, the anti-rotation strip 8, the first slot 9 and the second slot 10, and finally the staff processes the water tank 2, the cutting teeth 3, the superhard broken alloy 4 and the diamond composite sheet 5 on the surface of the milling cone head 1;
[0037] The staff applies fixing glue on the inside of the milling cone head 1, the first slot 9, the second slot 10, the upper joint 6, and the surface of the anti-rotation strip 8. Then the staff inserts the anti-rotation strip 8 into the first slot 9, and inserts the upper joint 6 into the milling cone head 1. At the same time, the anti-rotation strip 8 also enters the second slot 10. After the fixing glue solidifies, the milling cone head 1, the anti-rotation strip 8 and the upper joint 6 are adhered and fixed. The anti-rotation strip 8, the first slot 9 and the second slot 10 prevent the relative rotation between the milling cone head 1 and the upper joint 6 from affecting the window opening work. Then the staff welds in the welding groove 7 to further fix the milling cone head 1 and the upper joint 6, and the two sloped welding grooves 7 form a V shape to increase the welding surface, so that the welding of the milling cone head 1 and the upper joint 6 is stable and prevents it from falling off.
[0038] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A window opening milling cone with integrated window opening and trial drilling functions, comprising a milling cone head (1), characterized in that: A first slot (9) is provided inside the milling cone head (1), an upper joint (6) passes through the top of the milling cone head (1), and a second slot (10) is provided on the outer surface of the upper joint (6), a stop bar (8) is provided between the first slot (9) and the second slot (10), and welding grooves (7) are provided on one side of the bottom of the upper joint (6) and one side of the top of the milling cone head (1).
2. The window opening milling cone with integrated window opening and trial drilling function according to claim 1, characterized in that: The anti-rotation strip (8) is adapted to the first slot (9) and the second slot (10).
3. The window opening milling cone with integrated window opening and trial drilling function according to claim 2, characterized in that: The anti-rotation bars (8), the first slots (9) and the second slots (10) are provided in plurality, and the plurality of anti-rotation bars (8), the first slots (9) and the second slots (10) are distributed in a ring array.
4. The window opening milling cone with integrated window opening and trial drilling function according to claim 1, characterized in that: The two welding grooves (7) are both sloped.
5. The window opening milling cone with integrated window opening and trial drilling function according to claim 1, characterized in that: The cross section of the milling cone head (1) is in a "concave" shape, and the cross section of the upper joint (6) is in a "convex" shape.
6. The window opening milling cone with integrated window opening and trial drilling function according to claim 1, characterized in that: The outer surface of the milling cone head (1) is provided with a water groove (2), and the bottom of the milling cone head (1) is provided with cutting teeth (3).
7. The window opening milling cone with integrated window opening and trial drilling function according to claim 6, characterized in that: One side of the bottom of the milling cone head (1) is provided with a superhard alloy (4) and a diamond composite sheet (5).
8. The window opening milling cone with integrated window opening and trial drilling functions according to claim 7, characterized in that: The cutting teeth (3), superhard crushed alloy (4) and diamond composite sheets (5) are all provided in plurality, and the plurality of cutting teeth (3), superhard crushed alloy (4) and diamond composite sheets (5) are distributed in a ring array.